Extracting prog: 3m7.750120395s Minimizing prog: 14m51.506971671s Simplifying prog options: 0s Extracting C: 20.878093208s Simplifying C: 11m31.935435719s extracting reproducer from 25 programs testing a last program of every proc single: executing 5 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-mprotect-socket$nl_route-timer_settime-mmap-socketpair$unix-write$binfmt_elf64-sendmmsg$inet-socket$nl_netfilter-openat$make_it_fail-unshare-openat$ptp0-dup-write$FUSE_DIRENT-ioctl$PTP_EXTTS_REQUEST2-syz_open_procfs-preadv-prctl$PR_GET_TIMERSLACK-prctl$PR_GET_TIMERSLACK-sendmsg$IPCTNL_MSG_CT_GET detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) socket$nl_route(0x10, 0x3, 0x0) timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_elf64(r0, &(0x7f0000000000)=ANY=[], 0xfffffe3e) sendmmsg$inet(r0, &(0x7f0000000a80)=[{{0x0, 0x0, &(0x7f0000000580)=[{&(0x7f0000000400)="1d", 0x1}], 0x1}}], 0x1, 0x40003) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) openat$make_it_fail(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/thread-self/make-it-fail\x00', 0x1, 0x0) unshare(0x20000400) r2 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r3 = dup(r2) write$FUSE_DIRENT(r3, &(0x7f0000000080)={0x30, 0xfffffffffffffffe, 0x0, [{0x0, 0x1, 0x5, 0x1, '::-::'}]}, 0x30) ioctl$PTP_EXTTS_REQUEST2(r3, 0xc0603d0f, &(0x7f0000000040)) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000000c0)='fd/3\x00') preadv(r4, &(0x7f0000000100)=[{&(0x7f0000000040)=""/24, 0x18}], 0x1, 0xffffff00, 0x9) prctl$PR_GET_TIMERSLACK(0x1e) prctl$PR_GET_TIMERSLACK(0x1e) sendmsg$IPCTNL_MSG_CT_GET(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000080)={0x20, 0x1, 0x1, 0x201, 0x0, 0x0, {0x7, 0x0, 0x2}, [@CTA_FILTER={0xc, 0x19, 0x0, 0x1, [@CTA_FILTER_REPLY_FLAGS={0x8, 0x2, 0x600}]}]}, 0x20}}, 0x4008000) program did not crash program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-socket$key-unshare-getsockname$packet-mkdirat-mount-mkdirat-unlinkat-unshare-syz_usb_control_io$cdc_ecm-socket-socket$unix-bind$unix-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-mmap-select-socket$nl_generic-openat$ptp0-clock_adjtime-listen-syz_clone-ptrace-ptrace$peeksig-setsockopt$sock_int-bind$vsock_stream-connect$vsock_stream-syz_clone-ptrace-ptrace$pokeuser-ptrace$pokeuser detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x36, 0x0, 0x0) r1 = socket$key(0xf, 0x3, 0x2) unshare(0x4000480) getsockname$packet(r1, 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracefs\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./tracefs\x00', &(0x7f0000000040)='tracefs\x00', 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./tracefs/instances/foo\x00', 0x1ff) unlinkat(0xffffffffffffff9c, &(0x7f0000000140)='./tracefs/instances/foo\x00', 0x200) unshare(0x6a000500) syz_usb_control_io$cdc_ecm(r0, &(0x7f0000000140)={0x14, &(0x7f0000000080)=ANY=[@ANYBLOB="40113c0000003c205449acf7f115867c9325cd4181134534a9ef009432686352da5aac57daeb0f00000000000000fb943de53d047e659010fce3c056eb45d16e8263"], &(0x7f0000000100)={0x0, 0x3, 0x1a, {0x1a}}}, &(0x7f0000000280)={0x1c, &(0x7f0000000300)=ANY=[@ANYBLOB="0016070000008e81e795258a74deb21e979fef6887ac5b6859eac801c2532ba703e0755df3ca5467ef21415482ce82eb694bd83f313187c353c137ebd27aa01c129eeb6cd448e5bc5c628a641295db52805449ecee6be5b0fbf3c5c05fd44da3e8486bab90b2f703e9b424fb728da80b95d9585f41d835d1efd7f5e29f56623253725f2bf7ca8276aabecb86ad5f7b38371de861a5a9f408"], &(0x7f00000001c0)={0x0, 0xa, 0x1, 0xc}, &(0x7f0000000200)={0x0, 0x8, 0x1}}) r2 = socket(0x28, 0x5, 0x0) r3 = socket$unix(0x1, 0x1, 0x0) bind$unix(r3, &(0x7f0000000180)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x1, &(0x7f00000002c0)=[{0xffff, 0x15, 0x6, 0xa040}]}) mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0) select(0x40, &(0x7f0000000100)={0x0, 0x400000, 0xfffffffffffffffc, 0xfffffffffffffffe, 0x10000000000, 0x4b06, 0x80000000, 0x3}, &(0x7f00000024c0)={0x40000000000009, 0x10000, 0x1, 0x6, 0x2000, 0x0, 0x0, 0x4}, 0x0, 0x0) socket$nl_generic(0x10, 0x3, 0x10) openat$ptp0(0xffffffffffffff9c, &(0x7f0000000140), 0x2401, 0x0) clock_adjtime(0xffffffd3, &(0x7f0000000000)={0x10000, 0x6, 0xc, 0x1, 0x7, 0xe, 0x5, 0x1, 0x8000009654, 0x1, 0x7fffffff, 0x0, 0x1010, 0xb, 0xffff, 0x200cc0, 0x1, 0x5, 0x0, 0xfffffffffffffffc, 0x0, 0x809, 0x0, 0x5, 0x6, 0x9}) listen(r3, 0x0) r4 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) ptrace(0x10, r4) ptrace$peeksig(0x4209, r4, &(0x7f0000000000)={0x2, 0x1}, 0x0) setsockopt$sock_int(r1, 0x1, 0x20, &(0x7f0000000040)=0xb1, 0x4) bind$vsock_stream(r2, &(0x7f0000000040)={0x28, 0x0, 0x2710, @host}, 0x10) connect$vsock_stream(r2, &(0x7f0000000240), 0x10) r5 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) ptrace(0x8, r5) ptrace$pokeuser(0x6, r5, 0x388, 0x7a092814) ptrace$pokeuser(0x6, r5, 0x8, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs-chdir-mount$overlay-setsockopt$netlink_NETLINK_TX_RING-statfs-sendmsg$nl_generic detailed listing: executing program 0: r0 = socket(0x10, 0x3, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r1, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r2, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000b80), 0x8, &(0x7f0000000240)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}]}) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000100)={0x2ffc, 0x4000006, 0xfffffefc, 0x6}, 0x10) statfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000180)=""/119) sendmsg$nl_generic(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000340)=ANY=[@ANYBLOB="1c000000160001f47efde4be701161000a000000040000800400", @ANYRES16=r0], 0x1c}}, 0x804) program crashed: WARNING in shmem_rmdir single: successfully extracted reproducer found reproducer with 13 syscalls minimizing guilty program testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs-chdir-mount$overlay-setsockopt$netlink_NETLINK_TX_RING-statfs detailed listing: executing program 0: r0 = socket(0x10, 0x3, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r1, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r2, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000b80), 0x8, &(0x7f0000000240)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}]}) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000100)={0x2ffc, 0x4000006, 0xfffffefc, 0x6}, 0x10) statfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000180)=""/119) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs-chdir-mount$overlay-setsockopt$netlink_NETLINK_TX_RING detailed listing: executing program 0: r0 = socket(0x10, 0x3, 0x0) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r1, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r2, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000b80), 0x8, &(0x7f0000000240)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}]}) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000100)={0x2ffc, 0x4000006, 0xfffffefc, 0x6}, 0x10) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs-chdir-mount$overlay detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000b80), 0x8, &(0x7f0000000240)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}]}) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs-chdir detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mkdir detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdirat-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-read$eventfd-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') read$eventfd(r1, &(0x7f0000000080), 0x8) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-syz_open_procfs-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fdinfo/3\x00') mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-fcntl$lock-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) fcntl$lock(r0, 0x7, &(0x7f0000000000)={0x0, 0x2, 0x1b9, 0x7fffffff}) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$cgroup_ro-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cgroup.kill\x00', 0x275a, 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-mkdir-mount$incfs detailed listing: executing program 0: socket(0x10, 0x3, 0x0) mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(0x0, 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', 0x0, &(0x7f0000000840), 0x1804002, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0x1804002, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir simplifying C reproducer testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {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}}): mkdir-mount$incfs program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x0) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1804002, 0x0) program crashed: WARNING in shmem_rmdir validation run: crashed=true reproducing took 32m24.684666409s repro crashed as (corrupted=false): veth0_vlan: entered promiscuous mode veth1_macvtap: entered promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 376 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340 Modules linked in: CPU: 0 UID: 0 PID: 376 Comm: syz-executor Not tainted syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340 Code: 04 00 00 be 08 00 00 00 e8 0f 0d ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 88 09 b5 03 cc e8 82 2f 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c RSP: 0018:ffffc9000124fc88 EFLAGS: 00010293 RAX: ffffffff81f247de RBX: ffff888115b321e8 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000249f80 R12: dffffc0000000000 R13: 1ffff11022b66446 R14: ffff888115b32230 R15: 0000000000000000 FS: 00005555785a2500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555785c5958 CR3: 0000000114684000 CR4: 00000000003526b0 Call Trace: shmem_rmdir+0x5f/0x90 mm/shmem.c:3826 vfs_rmdir+0x3de/0x560 fs/namei.c:4348 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 ---[ end trace 0000000000000000 ]--- ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 fs/inode.c:452 Write of size 4 at addr 0000000000000168 by task syz-executor/376 CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G W syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 print_report+0x3d/0x70 mm/kasan/report.c:484 kasan_report+0x162/0x1a0 mm/kasan/report.c:594 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x25a/0x2b0 mm/kasan/generic.c:189 __kasan_check_write+0x18/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline] ihold+0x24/0x70 fs/inode.c:452 d_delete_notify include/linux/fsnotify.h:357 [inline] vfs_rmdir+0x25c/0x560 fs/namei.c:4361 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000168 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 8000000115cc2067 P4D 8000000115cc2067 PUD 0 Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G B W syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline] RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline] RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline] RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452 Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 6d 26 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 cc 03 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 7d RSP: 0018:ffffc9000124fcc8 EFLAGS: 00010246 RAX: ffff8881140e5f00 RBX: 0000000000000000 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcd8 R08: ffffffff88bb8947 R09: 1ffffffff1177128 R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 00005555785a2500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000114684000 CR4: 00000000003526b0 Call Trace: d_delete_notify include/linux/fsnotify.h:357 [inline] vfs_rmdir+0x25c/0x560 fs/namei.c:4361 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 Modules linked in: CR2: 0000000000000168 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline] RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline] RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline] RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452 Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 6d 26 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 cc 03 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 7d RSP: 0018:ffffc9000124fcc8 EFLAGS: 00010246 RAX: ffff8881140e5f00 RBX: 0000000000000000 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcd8 R08: ffffffff88bb8947 R09: 1ffffffff1177128 R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 00005555785a2500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000114684000 CR4: 00000000003526b0 ---------------- Code disassembly (best guess): 0: f3 0f 1e fa endbr64 4: 55 push %rbp 5: 48 89 e5 mov %rsp,%rbp 8: 41 56 push %r14 a: 53 push %rbx b: 48 89 fb mov %rdi,%rbx e: e8 6d 26 95 ff call 0xff952680 13: 48 8d bb 68 01 00 00 lea 0x168(%rbx),%rdi 1a: be 04 00 00 00 mov $0x4,%esi 1f: e8 cc 03 ee ff call 0xffee03f0 24: 41 be 01 00 00 00 mov $0x1,%r14d * 2a: f0 44 0f c1 b3 68 01 lock xadd %r14d,0x168(%rbx) <-- trapping instruction 31: 00 00 33: 41 ff c6 inc %r14d 36: bf 02 00 00 00 mov $0x2,%edi 3b: 44 89 f6 mov %r14d,%esi 3e: e8 .byte 0xe8 3f: 7d .byte 0x7d final repro crashed as (corrupted=false): veth0_vlan: entered promiscuous mode veth1_macvtap: entered promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 376 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340 Modules linked in: CPU: 0 UID: 0 PID: 376 Comm: syz-executor Not tainted syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340 Code: 04 00 00 be 08 00 00 00 e8 0f 0d ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 88 09 b5 03 cc e8 82 2f 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c RSP: 0018:ffffc9000124fc88 EFLAGS: 00010293 RAX: ffffffff81f247de RBX: ffff888115b321e8 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000249f80 R12: dffffc0000000000 R13: 1ffff11022b66446 R14: ffff888115b32230 R15: 0000000000000000 FS: 00005555785a2500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555785c5958 CR3: 0000000114684000 CR4: 00000000003526b0 Call Trace: shmem_rmdir+0x5f/0x90 mm/shmem.c:3826 vfs_rmdir+0x3de/0x560 fs/namei.c:4348 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 ---[ end trace 0000000000000000 ]--- ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 fs/inode.c:452 Write of size 4 at addr 0000000000000168 by task syz-executor/376 CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G W syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 print_report+0x3d/0x70 mm/kasan/report.c:484 kasan_report+0x162/0x1a0 mm/kasan/report.c:594 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x25a/0x2b0 mm/kasan/generic.c:189 __kasan_check_write+0x18/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline] ihold+0x24/0x70 fs/inode.c:452 d_delete_notify include/linux/fsnotify.h:357 [inline] vfs_rmdir+0x25c/0x560 fs/namei.c:4361 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000168 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 8000000115cc2067 P4D 8000000115cc2067 PUD 0 Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G B W syzkaller #0 01d0fef691542fecbcfb5551c0a705324fcaa78c Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline] RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline] RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline] RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452 Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 6d 26 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 cc 03 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 7d RSP: 0018:ffffc9000124fcc8 EFLAGS: 00010246 RAX: ffff8881140e5f00 RBX: 0000000000000000 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcd8 R08: ffffffff88bb8947 R09: 1ffffffff1177128 R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 00005555785a2500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000114684000 CR4: 00000000003526b0 Call Trace: d_delete_notify include/linux/fsnotify.h:357 [inline] vfs_rmdir+0x25c/0x560 fs/namei.c:4361 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd5/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e5/0x260 kernel/task_work.c:246 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff63979f397 Code: a2 c7 05 5c 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd3ed3fe98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff63979f397 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3ed3ff50 RBP: 00007ffd3ed3ff50 R08: 00007ffd3ed40f50 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3ed40fe0 R13: 00007ff63983448b R14: 0000000000006e08 R15: 00007ffd3ed41020 Modules linked in: CR2: 0000000000000168 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline] RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline] RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline] RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline] RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452 Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 6d 26 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 cc 03 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 7d RSP: 0018:ffffc9000124fcc8 EFLAGS: 00010246 RAX: ffff8881140e5f00 RBX: 0000000000000000 RCX: ffff8881140e5f00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000124fcd8 R08: ffffffff88bb8947 R09: 1ffffffff1177128 R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 00005555785a2500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000114684000 CR4: 00000000003526b0 ---------------- Code disassembly (best guess): 0: f3 0f 1e fa endbr64 4: 55 push %rbp 5: 48 89 e5 mov %rsp,%rbp 8: 41 56 push %r14 a: 53 push %rbx b: 48 89 fb mov %rdi,%rbx e: e8 6d 26 95 ff call 0xff952680 13: 48 8d bb 68 01 00 00 lea 0x168(%rbx),%rdi 1a: be 04 00 00 00 mov $0x4,%esi 1f: e8 cc 03 ee ff call 0xffee03f0 24: 41 be 01 00 00 00 mov $0x1,%r14d * 2a: f0 44 0f c1 b3 68 01 lock xadd %r14d,0x168(%rbx) <-- trapping instruction 31: 00 00 33: 41 ff c6 inc %r14d 36: bf 02 00 00 00 mov $0x2,%edi 3b: 44 89 f6 mov %r14d,%esi 3e: e8 .byte 0xe8 3f: 7d .byte 0x7d