Extracting prog: 8m35.641953975s Minimizing prog: 1h49m27.815956398s Simplifying prog options: 0s Extracting C: 2m17.904542522s Simplifying C: 27m51.685779939s extracting reproducer from 30 programs testing a last program of every proc single: executing 5 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-socket$inet6_tcp-sendto$inet6-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_mount_image$fuse-socket$inet_tcp-bind$inet-connect$inet-sendto$inet-recvfrom$inet detailed listing: executing program 0: r0 = fsopen(0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(0xffffffffffffffff, &(0x7f00000004c0), 0x0, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000440)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f0000000300)=@file={0x0, './file0\x00'}, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x3d04b63e3ee3755, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) syz_mount_image$fuse(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) r4 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r4, &(0x7f0000000080)={0x2, 0x4e21, @multicast1}, 0x10) connect$inet(r4, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x1d}}, 0x10) sendto$inet(r4, &(0x7f0000000000), 0xffffffffffffff94, 0xb, 0x0, 0x0) recvfrom$inet(r4, &(0x7f0000000080)=""/8, 0xfffffffffffffd0b, 0xc9100120, 0x0, 0xfffffffffffffd25) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-timer_create-fcntl$lock-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) fcntl$lock(r2, 0x7, &(0x7f00000000c0)={0x1, 0x2, 0x8, 0x73e9}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r3, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted single: successfully extracted reproducer found reproducer with 17 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-timer_create-fcntl$lock-fcntl$lock-mprotect detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) fcntl$lock(r2, 0x7, &(0x7f00000000c0)={0x1, 0x2, 0x8, 0x73e9}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-timer_create-fcntl$lock-fcntl$lock-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) fcntl$lock(r2, 0x7, &(0x7f00000000c0)={0x1, 0x2, 0x8, 0x73e9}) timer_settime(r3, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r3, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-timer_create-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r3, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-fcntl$lock-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) fcntl$lock(r2, 0x26, &(0x7f0000000280)={0x1, 0x0, 0x9, 0x9}) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-openat$cgroup_ro-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuacct.usage_percpu\x00', 0x275a, 0x0) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in sys_sendto testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-prlimit64-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-setsockopt-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt(r1, 0x84, 0x81, 0x0, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r2, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-socket$inet6_sctp-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) socket$inet6_sctp(0xa, 0x1, 0x84) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-sched_setscheduler-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) sched_setscheduler(0x0, 0x2, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-socketpair$unix-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-sched_setscheduler-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) r0 = getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) sched_setscheduler(r0, 0x2, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r1, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-openat$dlm_control-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) getpid() openat$dlm_control(0xffffffffffffff9c, 0x0, 0x8502, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-getpid-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) getpid() prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): eventfd2-prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: eventfd2(0x3, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, 0x0) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, 0x0, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, 0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, 0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime 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}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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-timer_create-fcntl$lock-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000240)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 2h37m5.580597233s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 1, t=10502 jiffies, g=9245, q=141 ncpus=2) rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955950-4294945447), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10504 jiffies! g9245 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27736 pid:16 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x11d1/0x40e0 kernel/sched/core.c:6562 schedule+0xb9/0x180 kernel/sched/core.c:6638 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2168 rcu_gp_fqs_loop+0x303/0x1340 kernel/rcu/tree.c:1706 rcu_gp_kthread+0x99/0x3b0 kernel/rcu/tree.c:1905 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4453 Comm: syz.2.23 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:__unsafe_setup_sigcontext arch/x86/kernel/signal.c:187 [inline] RIP: 0010:__setup_rt_frame arch/x86/kernel/signal.c:486 [inline] RIP: 0010:setup_rt_frame arch/x86/kernel/signal.c:784 [inline] RIP: 0010:handle_signal arch/x86/kernel/signal.c:828 [inline] RIP: 0010:arch_do_signal_or_restart+0xcd3/0x1350 arch/x86/kernel/signal.c:873 Code: 08 00 74 08 4c 89 ef e8 3b 65 a6 00 49 8b 45 00 49 89 86 b8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 58 80 3c 01 00 <4c> 8b 6c 24 60 74 08 4c 89 ef e8 0e 65 a6 00 41 0f b7 45 00 66 41 RSP: 0018:ffffc900034c7ca0 EFLAGS: 00040246 RAX: dffffc0000000000 RBX: 1ffff92000698fac RCX: 1ffff92000698ffc RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900034c7fd8 RBP: ffffc900034c7ec0 R08: 0000000000000000 R09: 1ffff92000698f71 R10: dffffc0000000000 R11: fffff52000698f72 R12: 0000000000000000 R13: ffffc900034c7fe8 R14: 00007f423748db38 R15: ffffc900034c7f58 FS: 00007f423748e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000058 CR3: 00000000776d0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f423659ce57 Code: 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 <0f> 05 48 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 RSP: 002b:00007f423748e0e8 EFLAGS: 00000246 RAX: 00000000000000ca RBX: 00007f4236815fa8 RCX: 00007f423659ce59 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4236815fa8 RBP: 00007f4236815fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4236816038 R14: 00007ffc6054eaf0 R15: 00007ffc6054ebd8 report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted final repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 1, t=10502 jiffies, g=8353, q=113 ncpus=2) rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955653-4294945150), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10504 jiffies! g8353 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:26416 pid:16 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x11d1/0x40e0 kernel/sched/core.c:6562 schedule+0xb9/0x180 kernel/sched/core.c:6638 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2168 rcu_gp_fqs_loop+0x303/0x1340 kernel/rcu/tree.c:1706 rcu_gp_kthread+0x99/0x3b0 kernel/rcu/tree.c:1905 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4290 Comm: syz-executor788 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:signal_delivered kernel/signal.c:2906 [inline] RIP: 0010:signal_setup_done+0x20b/0x490 kernel/signal.c:2919 Code: 4c 89 e7 e8 d7 6a 81 00 4d 8b 24 24 4c 89 e6 48 81 e6 00 00 00 40 31 ff e8 f2 66 30 00 49 81 e4 00 00 00 40 0f 85 b0 00 00 00 <49> 83 c7 50 4c 89 f8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 RSP: 0018:ffffc90003c97b40 EFLAGS: 00000246 RAX: ffffffff8152188e RBX: dffffc0000000000 RCX: ffff8880184cda00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003c97c90 R08: ffff8880184cda07 R09: 1ffff11003099b40 R10: dffffc0000000000 R11: ffffed1003099b41 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90003c97de0 FS: 00007ff93c8396c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000058 CR3: 0000000029520000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: handle_signal arch/x86/kernel/signal.c:846 [inline] arch_do_signal_or_restart+0xf83/0x1350 arch/x86/kernel/signal.c:873 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff93c86d190 Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 2a a4 06 00 e8 85 ae fd ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 RSP: 002b:00007ff93c838bb8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007ff93c909b28 RCX: 00007ff93c85a519 RDX: 00007ff93c838bc0 RSI: 00007ff93c838cf0 RDI: 0000000000000021 RBP: 00007ff93c909b20 R08: 00007ff93c839cdc R09: 00007ff93c839cdc R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff93c909b2c R13: 0000000000000000 R14: 00007ffc3894c490 R15: 00007ffc3894c578