Extracting prog: 7m37.884240366s Minimizing prog: 1h23m10.520882222s Simplifying prog options: 0s Extracting C: 3m9.096856701s Simplifying C: 23m56.587410684s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {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}}): creat-pipe2$9p-lsetxattr$security_ima-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) lsetxattr$security_ima(0x0, 0x0, 0x0, 0x0, 0x1) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program crashed: INFO: task hung in vfs_coredump program crashed: INFO: task hung in vfs_coredump single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=6m0s, {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}}): creat-pipe2$9p-lsetxattr$security_ima-mount$9p_fd-prctl$PR_SET_MM detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) lsetxattr$security_ima(0x0, 0x0, 0x0, 0x0, 0x1) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-lsetxattr$security_ima-mount$9p_fd-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) lsetxattr$security_ima(0x0, 0x0, 0x0, 0x0, 0x1) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-lsetxattr$security_ima-prctl$PR_SET_MM-brk detailed listing: executing program 0: creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0), 0x84000) lsetxattr$security_ima(0x0, 0x0, 0x0, 0x0, 0x1) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program crashed: INFO: task hung in vfs_coredump testing program (duration=6m0s, {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}}): creat-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(0x0, 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(0x0, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, 0x0, &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0), 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, 0x0) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0), 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB, @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash testing program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump simplifying C reproducer testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {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}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program did not crash testing compiled C program (duration=6m0s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk program crashed: INFO: task hung in vfs_coredump testing program (duration=6m0s, {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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true testing program (duration=6m0s, {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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true testing program (duration=6m0s, {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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-pipe2$9p-mount$9p_fd-prctl$PR_SET_MM-brk detailed listing: executing program 0: r0 = creat(&(0x7f0000000140)='./file0\x00', 0xe3) pipe2$9p(&(0x7f00000001c0)={0xffffffffffffffff}, 0x84000) mount$9p_fd(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000340)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r0]) prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000001000/0x4000)=nil) brk(0x400000001000) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true reproducing took 2h8m36.695493787s repro crashed as (corrupted=false): INFO: task syz.0.17:6045 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.17 state:D stack:24824 pid:6045 tgid:6045 ppid:5963 task_flags:0x400640 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5387 [inline] __schedule+0x169e/0x54f0 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0x164/0x360 kernel/sched/core.c:7282 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common+0x3c0/0x690 kernel/sched/completion.c:121 wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:269 coredump_wait fs/coredump.c:537 [inline] vfs_coredump+0x9d0/0x4540 fs/coredump.c:1202 get_signal+0x1107/0x1330 kernel/signal.c:3022 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop kernel/entry/common.c:98 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:252 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:323 [inline] irqentry_exit+0x284/0x730 kernel/entry/common.c:162 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f9bdc1627f7 RSP: 002b:00007ffc33df32e0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 000000000000000b RCX: 000000000002de60 RDX: 00007ffc33df3300 RSI: 00007ffc33df3430 RDI: 000000000000000b RBP: 00007f9bdc527da0 R08: 000000003441bb76 R09: 3fffffffffffffff R10: 4000000000000000 R11: 0000000000000000 R12: 000000000002e4d7 R13: 00007f9bdc52609c R14: 000000000002e1fe R15: 00007f9bdc526090 Showing all locks held in the system: 4 locks held by pr/legacy/17: #0: ffffffff8e3ba460 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250 kernel/printk/printk.c:3711 #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90 kernel/printk/printk.c:3246 #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline] #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: uart_port_lock_irqsave include/linux/serial_core.h:717 [inline] #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90 drivers/tty/serial/8250/8250_port.c:3316 #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57 1 lock held by khungtaskd/39: #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6777 1 lock held by klogd/5189: #0: ffffffff8e50c270 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:187 [inline] #0: ffffffff8e50c270 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_read_lock+0x27/0x60 include/linux/srcu.h:294 2 locks held by getty/5584: #0: ffff888037ea30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0 drivers/tty/n_tty.c:2211 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd3/0x1030 kernel/hung_task.c:561 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: bat_events batadv_dat_purge RIP: 0010:hlock_class kernel/locking/lockdep.c:246 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4857 [inline] RIP: 0010:__lock_acquire+0x3c6/0x2cf0 kernel/locking/lockdep.c:5189 Code: 0e 48 c7 c6 ab fc aa 8d 67 48 0f b9 3a 90 31 c0 0f b6 98 c4 00 00 00 41 8b 45 20 25 ff 1f 00 00 48 0f a3 05 8c 2b 23 12 73 17 <48> 69 c0 c8 00 00 00 48 8d 88 30 f3 64 93 84 db 75 3f e9 10 02 00 RSP: 0018:ffffc900001178b0 EFLAGS: 00000003 RAX: 000000000000000b RBX: 0000000000000003 RCX: 000000000000000b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffffffff81882f6c R09: ffffffff8e3c81c0 R10: 0000000000000000 R11: fffffbfff1f9eb7f R12: 000000000000000b R13: ffff88801dac8c48 R14: ffff88801dac8000 R15: ffff88801dac8bf8 FS: 0000000000000000(0000) GS:ffff888125b5e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056545b8b7f10 CR3: 0000000038594000 CR4: 00000000003526f0 Call Trace: reacquire_held_locks+0x104/0x190 kernel/locking/lockdep.c:5387 __lock_release kernel/locking/lockdep.c:5576 [inline] lock_release+0x199/0x3c0 kernel/locking/lockdep.c:5891 __local_bh_enable_ip+0x98/0x2b0 kernel/softirq.c:268 local_bh_enable include/linux/bottom_half.h:33 [inline] spin_unlock_bh include/linux/spinlock_rt.h:116 [inline] __batadv_dat_purge+0x344/0x400 net/batman-adv/distributed-arp-table.c:185 batadv_dat_purge+0x20/0x70 net/batman-adv/distributed-arp-table.c:204 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3312 process_scheduled_works kernel/workqueue.c:3403 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3489 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 final repro crashed as (corrupted=false): INFO: task syz.0.17:6045 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.17 state:D stack:24824 pid:6045 tgid:6045 ppid:5963 task_flags:0x400640 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5387 [inline] __schedule+0x169e/0x54f0 kernel/sched/core.c:7188 __schedule_loop kernel/sched/core.c:7267 [inline] schedule+0x164/0x360 kernel/sched/core.c:7282 schedule_timeout+0xc3/0x2c0 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common+0x3c0/0x690 kernel/sched/completion.c:121 wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:269 coredump_wait fs/coredump.c:537 [inline] vfs_coredump+0x9d0/0x4540 fs/coredump.c:1202 get_signal+0x1107/0x1330 kernel/signal.c:3022 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop kernel/entry/common.c:98 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:252 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:323 [inline] irqentry_exit+0x284/0x730 kernel/entry/common.c:162 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f9bdc1627f7 RSP: 002b:00007ffc33df32e0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 000000000000000b RCX: 000000000002de60 RDX: 00007ffc33df3300 RSI: 00007ffc33df3430 RDI: 000000000000000b RBP: 00007f9bdc527da0 R08: 000000003441bb76 R09: 3fffffffffffffff R10: 4000000000000000 R11: 0000000000000000 R12: 000000000002e4d7 R13: 00007f9bdc52609c R14: 000000000002e1fe R15: 00007f9bdc526090 Showing all locks held in the system: 4 locks held by pr/legacy/17: #0: ffffffff8e3ba460 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250 kernel/printk/printk.c:3711 #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline] #1: ffffffff8e2a1d58 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90 kernel/printk/printk.c:3246 #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline] #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: uart_port_lock_irqsave include/linux/serial_core.h:717 [inline] #2: ffffffff9a033998 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90 drivers/tty/serial/8250/8250_port.c:3316 #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline] #3: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57 1 lock held by khungtaskd/39: #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e3c81c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6777 1 lock held by klogd/5189: #0: ffffffff8e50c270 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:187 [inline] #0: ffffffff8e50c270 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_read_lock+0x27/0x60 include/linux/srcu.h:294 2 locks held by getty/5584: #0: ffff888037ea30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0 drivers/tty/n_tty.c:2211 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd3/0x1030 kernel/hung_task.c:561 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: bat_events batadv_dat_purge RIP: 0010:hlock_class kernel/locking/lockdep.c:246 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4857 [inline] RIP: 0010:__lock_acquire+0x3c6/0x2cf0 kernel/locking/lockdep.c:5189 Code: 0e 48 c7 c6 ab fc aa 8d 67 48 0f b9 3a 90 31 c0 0f b6 98 c4 00 00 00 41 8b 45 20 25 ff 1f 00 00 48 0f a3 05 8c 2b 23 12 73 17 <48> 69 c0 c8 00 00 00 48 8d 88 30 f3 64 93 84 db 75 3f e9 10 02 00 RSP: 0018:ffffc900001178b0 EFLAGS: 00000003 RAX: 000000000000000b RBX: 0000000000000003 RCX: 000000000000000b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffffffff81882f6c R09: ffffffff8e3c81c0 R10: 0000000000000000 R11: fffffbfff1f9eb7f R12: 000000000000000b R13: ffff88801dac8c48 R14: ffff88801dac8000 R15: ffff88801dac8bf8 FS: 0000000000000000(0000) GS:ffff888125b5e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056545b8b7f10 CR3: 0000000038594000 CR4: 00000000003526f0 Call Trace: reacquire_held_locks+0x104/0x190 kernel/locking/lockdep.c:5387 __lock_release kernel/locking/lockdep.c:5576 [inline] lock_release+0x199/0x3c0 kernel/locking/lockdep.c:5891 __local_bh_enable_ip+0x98/0x2b0 kernel/softirq.c:268 local_bh_enable include/linux/bottom_half.h:33 [inline] spin_unlock_bh include/linux/spinlock_rt.h:116 [inline] __batadv_dat_purge+0x344/0x400 net/batman-adv/distributed-arp-table.c:185 batadv_dat_purge+0x20/0x70 net/batman-adv/distributed-arp-table.c:204 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3312 process_scheduled_works kernel/workqueue.c:3403 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3489 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245