Extracting prog: 40.045532676s Minimizing prog: 52m30.2098202s Simplifying prog options: 0s Extracting C: 1m30.366425872s Simplifying C: 19m20.130869637s extracting reproducer from 37 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6-unshare-socket$kcm-syz_open_procfs-mmap-sched_setscheduler detailed listing: executing program 0: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r1 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r2 = getpid() sched_setscheduler(r2, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r3, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r4, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r3, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r5 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r5, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r6 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r6, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) unshare(0x2040400) socket$kcm(0xa, 0x2, 0x0) syz_open_procfs(0x0, &(0x7f0000000080)='net/snmp6\x00') mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2000003, 0x13, r0, 0x0) sched_setscheduler(0x0, 0x5, &(0x7f0000000200)=0x7) program crashed: KASAN: use-after-free Read in dvb_device_open single: successfully extracted reproducer found reproducer with 27 syscalls minimizing guilty program testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6-unshare-socket$kcm-syz_open_procfs-mmap detailed listing: executing program 0: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r1 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r2 = getpid() sched_setscheduler(r2, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r3, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r4, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r3, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r5 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r5, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r6 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r6, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) unshare(0x2040400) socket$kcm(0xa, 0x2, 0x0) syz_open_procfs(0x0, &(0x7f0000000080)='net/snmp6\x00') mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2000003, 0x13, r0, 0x0) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6-unshare-socket$kcm-syz_open_procfs detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r5 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r5, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) unshare(0x2040400) socket$kcm(0xa, 0x2, 0x0) syz_open_procfs(0x0, &(0x7f0000000080)='net/snmp6\x00') program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6-unshare-socket$kcm detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r5 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r5, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) unshare(0x2040400) socket$kcm(0xa, 0x2, 0x0) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6-unshare detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r5 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r5, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) unshare(0x2040400) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl-pselect6 detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r5 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r5, 0x8b22, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000000000)={0xa, 0x80000001, 0x2, 0x10000000000006, 0x12, 0x8, 0x80000000, 0x8}, 0x0, 0x0, 0x0, 0x0) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS-ioctl detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) r5 = socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) ioctl(r5, 0x8b22, &(0x7f0000000040)) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare-ioctl$sock_inet_SIOCSIFPFLAGS detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) ioctl$sock_inet_SIOCSIFPFLAGS(0xffffffffffffffff, 0x8934, &(0x7f0000000040)={'wlan0\x00', 0x1}) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route-unshare detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) socket$nl_route(0x10, 0x3, 0x0) unshare(0x40000000) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-socket$nl_route detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) socket$nl_route(0x10, 0x3, 0x0) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) r4 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) ioctl$FE_SET_PROPERTY(r4, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000340)=[{0x2b, '\x00', @buffer={"010d1de90c16308a633fda925d1085c6b9f70f72ad6cc5f4853700", 0x20}, 0xfffffff9}, {0x27, '\x00', @data, 0x5}, {0x29, '\x00', @st={0x4, [{0x3, @uvalue=0x8}, {0x3, @uvalue=0xa}, {0x1, @uvalue=0xc18}, {0x2, @svalue=0x40}]}, 0x7fe}]}) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-unshare detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) unshare(0x2c020400) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-writev-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) writev(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-socketpair$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-mmap-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeea, 0x8031, 0xffffffffffffffff, 0x0) connect$unix(0xffffffffffffffff, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000000), 0x651, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-getpid-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) getpid() socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-modify_ldt$write-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) modify_ldt$write(0x1, &(0x7f00000000c0)={0x3, 0x1000, 0x2000, 0x0, 0x2, 0x1, 0x0, 0x0, 0x0, 0x1}, 0x10) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_frontend_release testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-prlimit64-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-epoll_ctl$EPOLL_CTL_ADD-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) r0 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000100)={0x20000014}) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-epoll_create1-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) epoll_create1(0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_frontend_release testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, 0x0, 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, 0x0) connect$unix(0xffffffffffffffff, &(0x7f000057eff8)=@abs={0x0, 0x0, 0xfffffffd}, 0x6e) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000000), 0x651, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, 0x0, 0x0, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, 0x0, 0x0, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(0x0, 0x0, 0x2) program did not crash extracting C reproducer testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open simplifying C reproducer testing compiled C program (duration=45.178757886s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program did not crash testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing compiled C program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend program crashed: KASAN: use-after-free Read in dvb_device_open testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program did not crash validation run: crashed=false testing program (duration=45.178757886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_open_dev$dvb_frontend detailed listing: executing program 0: openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0xa8382, 0x0) prlimit64(0x0, 0xe, &(0x7f00000001c0)={0x8, 0xf32}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, 0x0, 0x0) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) program crashed: KASAN: use-after-free Read in dvb_device_open validation run: crashed=true reproducing took 1h28m14.573813633s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 Read of size 8 at addr ffff888027f5cc18 by task syz.0.38/4450 CPU: 1 PID: 4450 Comm: syz.0.38 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f74e4f7268e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f74e45f1b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f74e45f26c0 RCX: 00007f74e4f7268e RDX: 0000000000000002 RSI: 00007f74e45f1c00 RDI: ffffffffffffff9c RBP: 00007f74e45f1c00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007f74e522b128 R14: 00007f74e522b090 R15: 00007ffcbf49f0b8 Allocated by task 1: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] dvb_register_device+0x300/0x1dc0 drivers/media/dvb-core/dvbdev.c:488 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3034 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline] vidtv_bridge_probe+0x9c1/0xf30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805 __driver_attach+0x45d/0x660 drivers/base/dd.c:1184 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620 driver_register+0x32d/0x430 drivers/base/driver.c:240 vidtv_bridge_init+0x39/0x70 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602 do_one_initcall+0x272/0x730 init/main.c:1315 do_initcall_level+0x13d/0x1f0 init/main.c:1388 do_initcalls+0x4b/0x90 init/main.c:1404 kernel_init_freeable+0x3d5/0x560 init/main.c:1628 kernel_init+0x19/0x1b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Freed by task 4447: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1710 [inline] slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 dvb_free_device drivers/media/dvb-core/dvbdev.c:635 [inline] kref_put include/linux/kref.h:65 [inline] dvb_device_put drivers/media/dvb-core/dvbdev.c:650 [inline] dvb_device_open+0x2d2/0x360 drivers/media/dvb-core/dvbdev.c:123 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff888027f5cc00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 24 bytes inside of 256-byte region [ffff888027f5cc00, ffff888027f5cd00) The buggy address belongs to the page: page:ffffea00009fd700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27f5c head:ffffea00009fd700 order:1 compound_mapcount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 0000000200000001 ffff888016c41b40 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2836, ts 21107869426, free_ts 0 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501 alloc_slab_page mm/slub.c:1780 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xc0/0x4b0 mm/slub.c:1980 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] slab_alloc mm/slub.c:3233 [inline] kmem_cache_alloc_trace+0xf9/0x290 mm/slub.c:3250 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] set_kthread_struct kernel/kthread.c:103 [inline] kthread+0x10a/0x520 kernel/kthread.c:296 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 page_owner free stack trace missing Memory state around the buggy address: ffff888027f5cb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888027f5cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888027f5cc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888027f5cc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888027f5cd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 Read of size 8 at addr ffff888027f5cc18 by task syz.0.38/4450 CPU: 1 PID: 4450 Comm: syz.0.38 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 dvb_device_open+0xc5/0x360 drivers/media/dvb-core/dvbdev.c:109 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f74e4f7268e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f74e45f1b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f74e45f26c0 RCX: 00007f74e4f7268e RDX: 0000000000000002 RSI: 00007f74e45f1c00 RDI: ffffffffffffff9c RBP: 00007f74e45f1c00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007f74e522b128 R14: 00007f74e522b090 R15: 00007ffcbf49f0b8 Allocated by task 1: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] dvb_register_device+0x300/0x1dc0 drivers/media/dvb-core/dvbdev.c:488 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3034 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline] vidtv_bridge_probe+0x9c1/0xf30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x276/0xc70 drivers/base/dd.c:595 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805 __driver_attach+0x45d/0x660 drivers/base/dd.c:1184 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620 driver_register+0x32d/0x430 drivers/base/driver.c:240 vidtv_bridge_init+0x39/0x70 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602 do_one_initcall+0x272/0x730 init/main.c:1315 do_initcall_level+0x13d/0x1f0 init/main.c:1388 do_initcalls+0x4b/0x90 init/main.c:1404 kernel_init_freeable+0x3d5/0x560 init/main.c:1628 kernel_init+0x19/0x1b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Freed by task 4447: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1710 [inline] slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 dvb_free_device drivers/media/dvb-core/dvbdev.c:635 [inline] kref_put include/linux/kref.h:65 [inline] dvb_device_put drivers/media/dvb-core/dvbdev.c:650 [inline] dvb_device_open+0x2d2/0x360 drivers/media/dvb-core/dvbdev.c:123 chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7f7/0xf90 fs/open.c:826 do_open fs/namei.c:3616 [inline] path_openat+0x2718/0x2fb0 fs/namei.c:3750 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff888027f5cc00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 24 bytes inside of 256-byte region [ffff888027f5cc00, ffff888027f5cd00) The buggy address belongs to the page: page:ffffea00009fd700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27f5c head:ffffea00009fd700 order:1 compound_mapcount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 0000000200000001 ffff888016c41b40 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2836, ts 21107869426, free_ts 0 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501 alloc_slab_page mm/slub.c:1780 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xc0/0x4b0 mm/slub.c:1980 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] slab_alloc mm/slub.c:3233 [inline] kmem_cache_alloc_trace+0xf9/0x290 mm/slub.c:3250 kmalloc include/linux/slab.h:607 [inline] kzalloc include/linux/slab.h:738 [inline] set_kthread_struct kernel/kthread.c:103 [inline] kthread+0x10a/0x520 kernel/kthread.c:296 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 page_owner free stack trace missing Memory state around the buggy address: ffff888027f5cb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888027f5cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888027f5cc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888027f5cc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888027f5cd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================