Extracting prog: 43.75619983s Minimizing prog: 21m48.808544645s Simplifying prog options: 0s Extracting C: 55.497081387s Simplifying C: 8m3.522767617s 5 programs, timeouts [30s 1m40s 6m0s] extracting reproducer from 5 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-openat$hwrng-preadv-openat$fuse-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) preadv(r1, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) openat$fuse(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r2, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked single: successfully extracted reproducer found reproducer with 10 syscalls minimizing guilty program testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-openat$hwrng-preadv-openat$fuse-syz_open_procfs detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) preadv(r1, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) openat$fuse(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') program did not crash testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-openat$hwrng-preadv-openat$fuse-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) preadv(r1, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) openat$fuse(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000004180)={0x2020}, 0x2020) program did not crash testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-openat$hwrng-preadv-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) preadv(r1, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r2, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-openat$hwrng-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r1, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-sched_setscheduler-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r1, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-prlimit64-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r1, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-openat$binderfs-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r1, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-ioctl$BINDER_SET_CONTEXT_MGR_EXT-syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) r1 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r1, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$binderfs-syz_open_procfs-read$FUSE detailed listing: executing program 0: openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r0, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r0, &(0x7f0000004180)={0x2020}, 0x2020) program crashed: WARNING in cgroup_path_ns_locked testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = syz_open_procfs(0x0, 0x0) read$FUSE(r0, &(0x7f0000004180)={0x2020}, 0x2020) program did not crash testing program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE detailed listing: executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000280)='cpuset\x00') read$FUSE(r0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=53.0910096s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked simplifying C reproducer testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked testing compiled C program (duration=53.0910096s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-read$FUSE program crashed: WARNING in cgroup_path_ns_locked reproducing took 31m31.584624089s repro crashed as (corrupted=false): ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4021 at kernel/cgroup/cgroup.c:1424 cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] WARNING: CPU: 0 PID: 4021 at kernel/cgroup/cgroup.c:1424 cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 Modules linked in: CPU: 0 PID: 4021 Comm: syz-executor383 Not tainted 5.15.166-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] pc : cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 lr : cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] lr : cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 sp : ffff80001d0c7750 x29: ffff80001d0c7750 x28: ffff0000c11aba08 x27: 1ffff00002956069 x26: ffff800014ca9500 x25: ffff800014ca70c0 x24: dfff800000000000 x23: ffff800014ab0000 x22: 0000000000000000 x21: ffff800014ca70d0 x20: ffff0000dd188000 x19: 0000000000001000 x18: ffff80001d0c74a0 x17: ffff800008978c10 x16: ffff8000082eae1c x15: 000000000000b79c x14: 00000000139b590d x13: dfff800000000000 x12: ffff700003a18edc x11: 0000000000000001 x10: 0000000000000000 x9 : ffff0000da9d3680 x8 : ffff800008444a08 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800017779b50 x4 : 0000000000000008 x3 : ffff800014ca97c0 x2 : 0000000000001000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 proc_cpuset_show+0x298/0x42c kernel/cgroup/cpuset.c:3787 proc_single_show+0xf4/0x1cc fs/proc/base.c:778 seq_read_iter+0x3e0/0xc44 fs/seq_file.c:230 seq_read+0x388/0x4ec fs/seq_file.c:162 vfs_read+0x278/0xb18 fs/read_write.c:483 ksys_read+0x15c/0x26c fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:631 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 13332 hardirqs last enabled at (13331): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (13331): [] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194 hardirqs last disabled at (13332): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (13332): [] _raw_spin_lock_irq+0x38/0x13c kernel/locking/spinlock.c:170 softirqs last enabled at (12626): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (12624): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace c8d937f4b97e6033 ]--- final repro crashed as (corrupted=false): ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4021 at kernel/cgroup/cgroup.c:1424 cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] WARNING: CPU: 0 PID: 4021 at kernel/cgroup/cgroup.c:1424 cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 Modules linked in: CPU: 0 PID: 4021 Comm: syz-executor383 Not tainted 5.15.166-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] pc : cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 lr : cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] lr : cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 sp : ffff80001d0c7750 x29: ffff80001d0c7750 x28: ffff0000c11aba08 x27: 1ffff00002956069 x26: ffff800014ca9500 x25: ffff800014ca70c0 x24: dfff800000000000 x23: ffff800014ab0000 x22: 0000000000000000 x21: ffff800014ca70d0 x20: ffff0000dd188000 x19: 0000000000001000 x18: ffff80001d0c74a0 x17: ffff800008978c10 x16: ffff8000082eae1c x15: 000000000000b79c x14: 00000000139b590d x13: dfff800000000000 x12: ffff700003a18edc x11: 0000000000000001 x10: 0000000000000000 x9 : ffff0000da9d3680 x8 : ffff800008444a08 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800017779b50 x4 : 0000000000000008 x3 : ffff800014ca97c0 x2 : 0000000000001000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: cset_cgroup_from_root kernel/cgroup/cgroup.c:1424 [inline] cgroup_path_ns_locked+0x270/0x2dc kernel/cgroup/cgroup.c:2302 proc_cpuset_show+0x298/0x42c kernel/cgroup/cpuset.c:3787 proc_single_show+0xf4/0x1cc fs/proc/base.c:778 seq_read_iter+0x3e0/0xc44 fs/seq_file.c:230 seq_read+0x388/0x4ec fs/seq_file.c:162 vfs_read+0x278/0xb18 fs/read_write.c:483 ksys_read+0x15c/0x26c fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:631 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 13332 hardirqs last enabled at (13331): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (13331): [] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194 hardirqs last disabled at (13332): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (13332): [] _raw_spin_lock_irq+0x38/0x13c kernel/locking/spinlock.c:170 softirqs last enabled at (12626): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (12624): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace c8d937f4b97e6033 ]---