Extracting prog: 8m2.493296279s Minimizing prog: 1h4m43.497545213s Simplifying prog options: 0s Extracting C: 5m15.450995578s Simplifying C: 36m36.94473106s 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program crashed: no output from test machine single: successfully extracted reproducer found reproducer with 3 syscalls minimizing guilty program testing program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) program did not crash testing program (duration=8m53.211972406s, {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}}): prlimit64-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash testing program (duration=8m53.211972406s, {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}}): sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash testing program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash testing program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash testing program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, 0x0) program did not crash testing program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x0, 0x0}) program did not crash extracting C reproducer testing compiled C program (duration=8m53.211972406s, {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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine simplifying C reproducer testing compiled C program (duration=8m53.211972406s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing compiled C program (duration=8m53.211972406s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine testing program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash validation run: crashed=false testing program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program did not crash validation run: crashed=false testing program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000600)={0x9, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000200)=[{0x6, 0x22, 0x3, 0x50000}]}) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 2h24m46.524192058s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=a884/1/0x4000000000000000 softirq=0/0 fqs=5250 rcuc=10564 jiffies(starved) rcu: hardirqs softirqs csw/system rcu: number: 6049 263 572 rcu: cputime: 83 0 0 ==> 52490(ms) rcu: (t=10501 jiffies g=16985 q=11457 ncpus=2) CPU: 1 UID: 0 PID: 6278 Comm: syz.1.28 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0033:0x7f5293241b8b Code: 83 ec 18 89 fe 31 c0 bf e7 00 00 00 e8 4e b2 14 00 c7 44 24 0c 00 00 00 00 66 0f 1f 44 00 00 8b 44 24 0c 83 c0 01 89 44 24 0c f3 0f 1f 00 55 53 48 89 fb 48 81 ec d8 00 00 00 48 89 74 24 28 RSP: 002b:00007fff0c5a8540 EFLAGS: 00000202 RAX: 000000001940d56b RBX: 0000000000000000 RCX: 00007f529338cdd9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000000 R09: 00007f52935d73e0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f52935d73e0 R14: 0000000000000003 R15: 00007fff0c5a85f0 FS: 000055558a889500 GS: 0000000000000000 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6278 Comm: syz.1.28 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0033:0x7f5293241b87 Code: ff 66 90 48 83 ec 18 89 fe 31 c0 bf e7 00 00 00 e8 4e b2 14 00 c7 44 24 0c 00 00 00 00 66 0f 1f 44 00 00 8b 44 24 0c 83 c0 01 <89> 44 24 0c eb f3 0f 1f 00 55 53 48 89 fb 48 81 ec d8 00 00 00 48 RSP: 002b:00007fff0c5a8540 EFLAGS: 00000296 RAX: 00000000fbbdb060 RBX: 0000000000000000 RCX: 00007f529338cdd9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000000 R09: 00007f52935d73e0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f52935d73e0 R14: 0000000000000003 R15: 00007fff0c5a85f0 FS: 000055558a889500 GS: 0000000000000000 report is corrupted, running repro again testing compiled C program (duration=8m53.211972406s, {Threaded:false 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}}): prlimit64-sched_setscheduler-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER program crashed: no output from test machine final repro crashed as (corrupted=false):