Extracting prog: 1m30.373352053s
Minimizing prog: 18m6.321280963s
Simplifying prog options: 0s
Extracting C: 29.941540993s
Simplifying C: 5m15.770434278s


extracting reproducer from 70 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:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix-ioctl-socket$rxrpc-setsockopt$RXRPC_MIN_SECURITY_LEVEL-setsockopt$RXRPC_MIN_SECURITY_LEVEL-socket$nl_generic
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl(r2, 0x8b01, &(0x7f0000000040))
r3 = socket$rxrpc(0x21, 0x2, 0x2)
setsockopt$RXRPC_MIN_SECURITY_LEVEL(r3, 0x110, 0x4, &(0x7f0000000440)=0x1, 0x4) (async)
setsockopt$RXRPC_MIN_SECURITY_LEVEL(r3, 0x110, 0x4, &(0x7f0000000440)=0x1, 0x4)
socket$nl_generic(0x10, 0x3, 0x10)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
single: successfully extracted reproducer
found reproducer with 18 syscalls
minimizing guilty program
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix-ioctl-socket$rxrpc-setsockopt$RXRPC_MIN_SECURITY_LEVEL-setsockopt$RXRPC_MIN_SECURITY_LEVEL
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl(r2, 0x8b01, &(0x7f0000000040))
r3 = socket$rxrpc(0x21, 0x2, 0x2)
setsockopt$RXRPC_MIN_SECURITY_LEVEL(r3, 0x110, 0x4, &(0x7f0000000440)=0x1, 0x4) (async)
setsockopt$RXRPC_MIN_SECURITY_LEVEL(r3, 0x110, 0x4, &(0x7f0000000440)=0x1, 0x4)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix-ioctl-socket$rxrpc-setsockopt$RXRPC_MIN_SECURITY_LEVEL
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl(r2, 0x8b01, &(0x7f0000000040))
r3 = socket$rxrpc(0x21, 0x2, 0x2)
setsockopt$RXRPC_MIN_SECURITY_LEVEL(r3, 0x110, 0x4, &(0x7f0000000440)=0x1, 0x4) (async)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix-ioctl-socket$rxrpc
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl(r2, 0x8b01, &(0x7f0000000040))
socket$rxrpc(0x21, 0x2, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix-ioctl
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl(r2, 0x8b01, &(0x7f0000000040))

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read-socket$unix
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)
socket$unix(0x1, 0x1, 0x0)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime-read
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)
read(r0, &(0x7f0000000000)=""/248, 0xf8)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr-timerfd_settime
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
r0 = timerfd_create(0x9, 0x0)
r1 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r1, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)
timerfd_settime(r0, 0x1, &(0x7f0000007000)={{0x77359400}, {0x0, 0x989680}}, 0x0)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree-mount_setattr
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
timerfd_create(0x9, 0x0)
r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
mount_setattr(r0, &(0x7f0000000100)='.\x00', 0x9000, &(0x7f0000001dc0)={0x0, 0xf9, 0x20000}, 0x20)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create-open_tree
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
timerfd_create(0x9, 0x0)
open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend-timerfd_create
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
timerfd_create(0x9, 0x0)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-timer_settime
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_create-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-ioctl$sock_SIOCGIFINDEX_80211-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'})
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): ioctl$sock_SIOCGIFINDEX_80211-timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'wlan1\x00'}) (async)
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) (async)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2) (async)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, 0x0, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, 0x0)
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, 0x0, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(0x0, 0x0, 0x2)

program did not crash
extracting C reproducer
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
simplifying C reproducer
testing compiled C program (duration=41.962710477s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program did not crash
testing compiled C program (duration=41.962710477s, {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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program did not crash
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing compiled C program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
program crashed: KASAN: slab-use-after-free Read in dvb_device_open
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
validation run: crashed=true
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
validation run: crashed=true
testing program (duration=41.962710477s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-timer_settime-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300))
timer_settime(0x0, 0x0, &(0x7f0000000500)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: slab-use-after-free Read in dvb_device_open
validation run: crashed=true
reproducing took 28m0.703378803s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in dvb_device_open+0x33f/0x3b0 drivers/media/dvb-core/dvbdev.c:99
Read of size 8 at addr ffff88802eed0618 by task syz.0.19/5928

CPU: 2 UID: 0 PID: 5928 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 dvb_device_open+0x33f/0x3b0 drivers/media/dvb-core/dvbdev.c:99
 chrdev_open+0x234/0x6a0 fs/char_dev.c:411
 do_dentry_open+0x6ab/0x14d0 fs/open.c:947
 vfs_open+0x82/0x3f0 fs/open.c:1052
 do_open fs/namei.c:4700 [inline]
 path_openat+0x2873/0x4280 fs/namei.c:4863
 do_file_open+0x20e/0x430 fs/namei.c:4892
 do_sys_openat2+0x10f/0x1e0 fs/open.c:1368
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_openat fs/open.c:1390 [inline]
 __se_sys_openat fs/open.c:1385 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1385
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1231d5e68e
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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f1232ce3b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1232ce46c0 RCX: 00007f1231d5e68e
RDX: 0000000000000002 RSI: 00007f1232ce3c00 RDI: ffffffffffffff9c
RBP: 00007f1232ce3c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f1232026038 R14: 00007f1232025fa0 R15: 00007ffc90dd46b8
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2e5/0x6c0 mm/slub.c:5515
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 _kzalloc_noprof include/linux/slab.h:1290 [inline]
 dvb_register_device+0x1d6/0x1e20 drivers/media/dvb-core/dvbdev.c:472
 dvb_register_frontend+0x552/0x820 drivers/media/dvb-core/dvb_frontend.c:3051
 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline]
 vidtv_bridge_probe+0x44b/0xa30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 vidtv_bridge_init+0x52/0x80 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5926:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2705 [inline]
 slab_free mm/slub.c:6405 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6720
 dvb_free_device drivers/media/dvb-core/dvbdev.c:616 [inline]
 kref_put include/linux/kref.h:65 [inline]
 dvb_device_put.part.0+0x57/0x90 drivers/media/dvb-core/dvbdev.c:629
 dvb_device_put drivers/media/dvb-core/dvbdev.c:628 [inline]
 dvb_device_open+0x2ba/0x3b0 drivers/media/dvb-core/dvbdev.c:113
 chrdev_open+0x234/0x6a0 fs/char_dev.c:411
 do_dentry_open+0x6ab/0x14d0 fs/open.c:947
 vfs_open+0x82/0x3f0 fs/open.c:1052
 do_open fs/namei.c:4700 [inline]
 path_openat+0x2873/0x4280 fs/namei.c:4863
 do_file_open+0x20e/0x430 fs/namei.c:4892
 do_sys_openat2+0x10f/0x1e0 fs/open.c:1368
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_openat fs/open.c:1390 [inline]
 __se_sys_openat fs/open.c:1385 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1385
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802eed0600
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 24 bytes inside of
 freed 256-byte region [ffff88802eed0600, ffff88802eed0700)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2eed0
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801bc42b40 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801bc42b40 dead000000000100 dead000000000122
head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 00fff00000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
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 1, tgid 1 (swapper/0), ts 21910861912, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3294 [inline]
 allocate_slab mm/slub.c:3408 [inline]
 new_slab+0xa2/0x650 mm/slub.c:3454
 refill_objects+0xe3/0x410 mm/slub.c:7338
 refill_sheaf mm/slub.c:2832 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4703
 alloc_from_pcs mm/slub.c:4801 [inline]
 slab_alloc_node mm/slub.c:4933 [inline]
 __kmalloc_cache_noprof+0x479/0x6c0 mm/slub.c:5511
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 _kzalloc_noprof include/linux/slab.h:1290 [inline]
 bus_add_driver+0x92/0x5b0 drivers/base/bus.c:747
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 usb_register_driver drivers/usb/core/driver.c:1078 [inline]
 usb_register_driver+0x21c/0x3e0 drivers/usb/core/driver.c:1060
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88802eed0500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802eed0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802eed0600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88802eed0680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802eed0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in dvb_device_open+0x33f/0x3b0 drivers/media/dvb-core/dvbdev.c:99
Read of size 8 at addr ffff88802eed0618 by task syz.0.19/5928

CPU: 2 UID: 0 PID: 5928 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 dvb_device_open+0x33f/0x3b0 drivers/media/dvb-core/dvbdev.c:99
 chrdev_open+0x234/0x6a0 fs/char_dev.c:411
 do_dentry_open+0x6ab/0x14d0 fs/open.c:947
 vfs_open+0x82/0x3f0 fs/open.c:1052
 do_open fs/namei.c:4700 [inline]
 path_openat+0x2873/0x4280 fs/namei.c:4863
 do_file_open+0x20e/0x430 fs/namei.c:4892
 do_sys_openat2+0x10f/0x1e0 fs/open.c:1368
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_openat fs/open.c:1390 [inline]
 __se_sys_openat fs/open.c:1385 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1385
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1231d5e68e
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 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f1232ce3b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1232ce46c0 RCX: 00007f1231d5e68e
RDX: 0000000000000002 RSI: 00007f1232ce3c00 RDI: ffffffffffffff9c
RBP: 00007f1232ce3c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f1232026038 R14: 00007f1232025fa0 R15: 00007ffc90dd46b8
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2e5/0x6c0 mm/slub.c:5515
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 _kzalloc_noprof include/linux/slab.h:1290 [inline]
 dvb_register_device+0x1d6/0x1e20 drivers/media/dvb-core/dvbdev.c:472
 dvb_register_frontend+0x552/0x820 drivers/media/dvb-core/dvb_frontend.c:3051
 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline]
 vidtv_bridge_probe+0x44b/0xa30 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 vidtv_bridge_init+0x52/0x80 drivers/media/test-drivers/vidtv/vidtv_bridge.c:602
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5926:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2705 [inline]
 slab_free mm/slub.c:6405 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6720
 dvb_free_device drivers/media/dvb-core/dvbdev.c:616 [inline]
 kref_put include/linux/kref.h:65 [inline]
 dvb_device_put.part.0+0x57/0x90 drivers/media/dvb-core/dvbdev.c:629
 dvb_device_put drivers/media/dvb-core/dvbdev.c:628 [inline]
 dvb_device_open+0x2ba/0x3b0 drivers/media/dvb-core/dvbdev.c:113
 chrdev_open+0x234/0x6a0 fs/char_dev.c:411
 do_dentry_open+0x6ab/0x14d0 fs/open.c:947
 vfs_open+0x82/0x3f0 fs/open.c:1052
 do_open fs/namei.c:4700 [inline]
 path_openat+0x2873/0x4280 fs/namei.c:4863
 do_file_open+0x20e/0x430 fs/namei.c:4892
 do_sys_openat2+0x10f/0x1e0 fs/open.c:1368
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_openat fs/open.c:1390 [inline]
 __se_sys_openat fs/open.c:1385 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1385
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802eed0600
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 24 bytes inside of
 freed 256-byte region [ffff88802eed0600, ffff88802eed0700)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2eed0
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801bc42b40 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801bc42b40 dead000000000100 dead000000000122
head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 00fff00000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
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 1, tgid 1 (swapper/0), ts 21910861912, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3294 [inline]
 allocate_slab mm/slub.c:3408 [inline]
 new_slab+0xa2/0x650 mm/slub.c:3454
 refill_objects+0xe3/0x410 mm/slub.c:7338
 refill_sheaf mm/slub.c:2832 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4703
 alloc_from_pcs mm/slub.c:4801 [inline]
 slab_alloc_node mm/slub.c:4933 [inline]
 __kmalloc_cache_noprof+0x479/0x6c0 mm/slub.c:5511
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 _kzalloc_noprof include/linux/slab.h:1290 [inline]
 bus_add_driver+0x92/0x5b0 drivers/base/bus.c:747
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 usb_register_driver drivers/usb/core/driver.c:1078 [inline]
 usb_register_driver+0x21c/0x3e0 drivers/usb/core/driver.c:1060
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88802eed0500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802eed0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802eed0600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88802eed0680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802eed0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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