./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2792398617
<...>
Warning: Permanently added '10.128.0.178' (ED25519) to the list of known hosts.
execve("./syz-executor2792398617", ["./syz-executor2792398617"], 0x7ffefe0dea90 /* 10 vars */) = 0
brk(NULL) = 0x5555561ab000
brk(0x5555561abe00) = 0x5555561abe00
arch_prctl(ARCH_SET_FS, 0x5555561ab480) = 0
set_tid_address(0x5555561ab750) = 291
set_robust_list(0x5555561ab760, 24) = 0
rseq(0x5555561abda0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2792398617", 4096) = 28
getrandom("\xc5\x24\x85\xfb\x1e\xcf\x49\x89", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555561abe00
brk(0x5555561cce00) = 0x5555561cce00
brk(0x5555561cd000) = 0x5555561cd000
mprotect(0x7f73b08b0000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f73b0807860, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f73b080f670}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f73b0807860, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f73b080f670}, NULL, 8) = 0
mkdir("./syzkaller.SvN2VI", 0700) = 0
chmod("./syzkaller.SvN2VI", 0777) = 0
chdir("./syzkaller.SvN2VI") = 0
mkdir("./0", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555561ab750) = 293
./strace-static-x86_64: Process 293 attached
[pid 293] set_robust_list(0x5555561ab760, 24) = 0
[pid 293] chdir("./0") = 0
[pid 293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 293] setpgid(0, 0) = 0
[pid 293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 293] write(3, "1000", 4) = 4
[pid 293] close(3) = 0
[pid 293] symlink("/dev/binderfs", "./binderfs") = 0
[pid 293] mkdir("./file0", 000) = 0
[pid 293] mount(NULL, "./file0", "tmpfs", 0, NULL) = 0
[pid 293] chdir("./file0") = 0
[pid 293] mkdir("./file0", 0777) = 0
[pid 293] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 293] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[ 19.023123][ T30] audit: type=1400 audit(1713730775.298:66): avc: denied { execmem } for pid=291 comm="syz-executor279" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 19.031001][ T30] audit: type=1400 audit(1713730775.308:67): avc: denied { read write } for pid=291 comm="syz-executor279" name="loop0" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 19.035254][ T30] audit: type=1400 audit(1713730775.308:68): avc: denied { open } for pid=291 comm="syz-executor279" path="/dev/loop0" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 19.039391][ T30] audit: type=1400 audit(1713730775.308:69): avc: denied { ioctl } for pid=291 comm="syz-executor279" path="/dev/loop0" dev="devtmpfs" ino=112 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid 293] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid 293] exit_group(0) = ?
[pid 293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=293, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x5555561ac7f0 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs") = 0
umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=100, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=100, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x5555561b4830 /* 5 entries */, 32768) = 144
umount2("./0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
getdents64(5, 0x5555561bc870 /* 2 entries */, 32768) = 48
getdents64(5, 0x5555561bc870 /* 0 entries */, 32768) = 0
close(5) = 0
rmdir("./0/file0/.incomplete") = 0
umount2("./0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
getdents64(5, 0x5555561bc870 /* 2 entries */, 32768) = 48
getdents64(5, 0x5555561bc870 /* 0 entries */, 32768) = 0
close(5) = 0
rmdir("./0/file0/.index") = 0
[ 19.049071][ T30] audit: type=1400 audit(1713730775.318:70): avc: denied { mounton } for pid=293 comm="syz-executor279" path="/root/syzkaller.SvN2VI/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 19.051616][ T293] incfs: ino conflict with backing FS 1
[ 19.073953][ T30] audit: type=1400 audit(1713730775.318:71): avc: denied { mount } for pid=293 comm="syz-executor279" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[ 19.101087][ T291] ------------[ cut here ]------------
[ 19.101456][ T30] audit: type=1400 audit(1713730775.328:72): avc: denied { mounton } for pid=293 comm="syz-executor279" path="/root/syzkaller.SvN2VI/0/file0/file0" dev="tmpfs" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[ 19.106899][ T291] WARNING: CPU: 1 PID: 291 at fs/inode.c:307 drop_nlink+0xc1/0x110
[ 19.132142][ T30] audit: type=1400 audit(1713730775.348:73): avc: denied { mount } for pid=293 comm="syz-executor279" name="/" dev="incremental-fs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
[ 19.140617][ T291] Modules linked in:
[ 19.163560][ T30] audit: type=1400 audit(1713730775.358:74): avc: denied { unmount } for pid=291 comm="syz-executor279" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[ 19.163590][ T30] audit: type=1400 audit(1713730775.358:75): avc: denied { unmount } for pid=291 comm="syz-executor279" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
[ 19.207409][ T291]
[ 19.209501][ T291] CPU: 1 PID: 291 Comm: syz-executor279 Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #0
[ 19.219770][ T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 19.229682][ T291] RIP: 0010:drop_nlink+0xc1/0x110
[ 19.234515][ T291] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 e7 f7 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 bf d4 ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[ 19.254055][ T291] RSP: 0018:ffffc90000987bc8 EFLAGS: 00010293
[ 19.259926][ T291] RAX: ffffffff81c14d71 RBX: 0000000000000000 RCX: ffff888119768000
[ 19.267881][ T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 19.275700][ T291] RBP: ffffc90000987bf0 R08: ffffffff81c14cf4 R09: 0000000000000003
[ 19.283520][ T291] R10: fffff52000130f68 R11: dffffc0000000001 R12: dffffc0000000000
[ 19.291561][ T291] R13: 1ffff11022a2ed5f R14: ffff888115176ab0 R15: ffff888115176af8
[ 19.299359][ T291] FS: 00005555561ab480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 19.308199][ T291] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.314564][ T291] CR2: 00005555561c4878 CR3: 000000011ce31000 CR4: 00000000003506a0
[ 19.322394][ T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 19.330178][ T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 19.338011][ T291] Call Trace:
[ 19.341131][ T291]
[ 19.343881][ T291] ? show_regs+0x58/0x60
[ 19.347993][ T291] ? __warn+0x160/0x2f0
[ 19.351996][ T291] ? drop_nlink+0xc1/0x110
[ 19.356205][ T291] ? report_bug+0x3d9/0x5b0
[ 19.360544][ T291] ? drop_nlink+0xc1/0x110
[ 19.364841][ T291] ? handle_bug+0x41/0x70
[ 19.368968][ T291] ? exc_invalid_op+0x1b/0x50
[ 19.373509][ T291] ? asm_exc_invalid_op+0x1b/0x20
[ 19.378338][ T291] ? drop_nlink+0x44/0x110
[ 19.382879][ T291] ? drop_nlink+0xc1/0x110
[ 19.387108][ T291] ? drop_nlink+0xc1/0x110
[ 19.391484][ T291] ? drop_nlink+0xc1/0x110
[ 19.395704][ T291] shmem_rmdir+0x59/0x90
[ 19.399921][ T291] vfs_rmdir+0x324/0x470
[ 19.404039][ T291] incfs_kill_sb+0x113/0x230
[ 19.408406][ T291] deactivate_locked_super+0xad/0x110
[ 19.413693][ T291] deactivate_super+0xbe/0xf0
[ 19.418195][ T291] cleanup_mnt+0x45c/0x510
[ 19.422497][ T291] __cleanup_mnt+0x19/0x20
[ 19.426718][ T291] task_work_run+0x129/0x190
[ 19.431294][ T291] ptrace_notify+0x29e/0x350
[ 19.435775][ T291] ? do_notify_parent+0xa30/0xa30
[ 19.441041][ T291] ? user_path_at_empty+0x14e/0x1a0
[ 19.446358][ T291] ? __x64_sys_umount+0x122/0x170
[ 19.451256][ T291] ? path_umount+0xea0/0xea0
[ 19.455651][ T291] ? __kasan_check_read+0x11/0x20
[ 19.460585][ T291] syscall_exit_to_user_mode+0xac/0x160
[ 19.466038][ T291] do_syscall_64+0x49/0xb0
[ 19.470307][ T291] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 19.476073][ T291] RIP: 0033:0x7f73b083dd07
[ 19.480286][ T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[ 19.499761][ T291] RSP: 002b:00007ffe7c345f98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 19.507994][ T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f73b083dd07
[ 19.515914][ T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe7c346050
[ 19.523832][ T291] RBP: 00007ffe7c346050 R08: 0000000000000000 R09: 0000000000000000
[ 19.531632][ T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe7c347140
[ 19.539412][ T291] R13: 00005555561b4800 R14: 431bde82d7b634db R15: 00007ffe7c3481d0
[ 19.547261][ T291]
[ 19.550087][ T291] ---[ end trace e2320c229e0da82a ]---
[ 19.555465][ T291] ==================================================================
[ 19.563285][ T291] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[ 19.569354][ T291] Write of size 4 at addr 0000000000000170 by task syz-executor279/291
[ 19.577432][ T291]
[ 19.579684][ T291] CPU: 1 PID: 291 Comm: syz-executor279 Tainted: G W 5.15.148-syzkaller-00013-gad06eaf051cd #0
[ 19.591154][ T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 19.601033][ T291] Call Trace:
[ 19.604160][ T291]
[ 19.606935][ T291] dump_stack_lvl+0x151/0x1b7
[ 19.611536][ T291] ? io_uring_drop_tctx_refs+0x190/0x190
[ 19.617088][ T291] kasan_report+0x16f/0x1c0
[ 19.621429][ T291] ? ihold+0x20/0x60
[ 19.625160][ T291] ? ihold+0x20/0x60
[ 19.628897][ T291] kasan_check_range+0x293/0x2a0
[ 19.633666][ T291] __kasan_check_write+0x14/0x20
[ 19.638440][ T291] ihold+0x20/0x60
[ 19.642000][ T291] vfs_rmdir+0x201/0x470
[ 19.646079][ T291] incfs_kill_sb+0x113/0x230
[ 19.650613][ T291] deactivate_locked_super+0xad/0x110
[ 19.655819][ T291] deactivate_super+0xbe/0xf0
[ 19.660327][ T291] cleanup_mnt+0x45c/0x510
[ 19.664581][ T291] __cleanup_mnt+0x19/0x20
[ 19.668836][ T291] task_work_run+0x129/0x190
[ 19.673270][ T291] ptrace_notify+0x29e/0x350
[ 19.677689][ T291] ? do_notify_parent+0xa30/0xa30
[ 19.682896][ T291] ? user_path_at_empty+0x14e/0x1a0
[ 19.688016][ T291] ? __x64_sys_umount+0x122/0x170
[ 19.692883][ T291] ? path_umount+0xea0/0xea0
[ 19.697302][ T291] ? __kasan_check_read+0x11/0x20
[ 19.702162][ T291] syscall_exit_to_user_mode+0xac/0x160
[ 19.707544][ T291] do_syscall_64+0x49/0xb0
[ 19.711797][ T291] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 19.717525][ T291] RIP: 0033:0x7f73b083dd07
[ 19.721779][ T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[ 19.741220][ T291] RSP: 002b:00007ffe7c345f98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 19.749467][ T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f73b083dd07
[ 19.757277][ T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe7c346050
[ 19.765087][ T291] RBP: 00007ffe7c346050 R08: 0000000000000000 R09: 0000000000000000
[ 19.772899][ T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe7c347140
[ 19.780712][ T291] R13: 00005555561b4800 R14: 431bde82d7b634db R15: 00007ffe7c3481d0
[ 19.788651][ T291]
[ 19.791475][ T291] ==================================================================
[ 19.799415][ T291] Disabling lock debugging due to kernel taint
[ 19.805594][ T291] BUG: kernel NULL pointer dereference, address: 0000000000000170
[ 19.813296][ T291] #PF: supervisor write access in kernel mode
[ 19.819188][ T291] #PF: error_code(0x0002) - not-present page
[ 19.825091][ T291] PGD 0 P4D 0
[ 19.828299][ T291] Oops: 0002 [#1] PREEMPT SMP KASAN
[ 19.833342][ T291] CPU: 1 PID: 291 Comm: syz-executor279 Tainted: G B W 5.15.148-syzkaller-00013-gad06eaf051cd #0
[ 19.844891][ T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 19.854860][ T291] RIP: 0010:ihold+0x25/0x60
[ 19.859199][ T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 d1 cc ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 d0 ef f0 ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 54 d0 ae
[ 19.878659][ T291] RSP: 0018:ffffc90000987c08 EFLAGS: 00010246
[ 19.884545][ T291] RAX: ffff888119768000 RBX: 0000000000000001 RCX: ffff888119768000
[ 19.892442][ T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[ 19.900255][ T291] RBP: ffffc90000987c18 R08: ffffffff81416e7b R09: 0000000000000003
[ 19.908072][ T291] R10: fffffbfff0e5244c R11: dffffc0000000001 R12: dffffc0000000000
[ 19.916050][ T291] R13: ffff88811c52dcc0 R14: 0000000000000000 R15: 1ffff110238a5b9e
[ 19.924904][ T291] FS: 00005555561ab480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 19.933668][ T291] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.940179][ T291] CR2: 0000000000000170 CR3: 000000011ce31000 CR4: 00000000003506a0
[ 19.947992][ T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 19.955825][ T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 19.963767][ T291] Call Trace:
[ 19.966926][ T291]
[ 19.969796][ T291] ? __die_body+0x62/0xb0
[ 19.974641][ T291] ? __die+0x7e/0x90
[ 19.978370][ T291] ? page_fault_oops+0x7f9/0xa90
[ 19.983141][ T291] ? __kasan_check_write+0x14/0x20
[ 19.988090][ T291] ? kernelmode_fixup_or_oops+0x270/0x270
[ 19.993646][ T291] ? __schedule+0xcd4/0x1590
[ 19.998080][ T291] ? exc_page_fault+0x521/0x830
[ 20.002761][ T291] ? asm_exc_page_fault+0x27/0x30
[ 20.007621][ T291] ? check_panic_on_warn+0x5b/0xb0
[ 20.012594][ T291] ? ihold+0x25/0x60
[ 20.016300][ T291] ? ihold+0x20/0x60
[ 20.020034][ T291] vfs_rmdir+0x201/0x470
[ 20.024109][ T291] incfs_kill_sb+0x113/0x230
[ 20.028547][ T291] deactivate_locked_super+0xad/0x110
[ 20.033746][ T291] deactivate_super+0xbe/0xf0
[ 20.038267][ T291] cleanup_mnt+0x45c/0x510
[ 20.042510][ T291] __cleanup_mnt+0x19/0x20
[ 20.047039][ T291] task_work_run+0x129/0x190
[ 20.051456][ T291] ptrace_notify+0x29e/0x350
[ 20.055883][ T291] ? do_notify_parent+0xa30/0xa30
[ 20.060745][ T291] ? user_path_at_empty+0x14e/0x1a0
[ 20.065779][ T291] ? __x64_sys_umount+0x122/0x170
[ 20.070640][ T291] ? path_umount+0xea0/0xea0
[ 20.075078][ T291] ? __kasan_check_read+0x11/0x20
[ 20.079924][ T291] syscall_exit_to_user_mode+0xac/0x160
[ 20.085305][ T291] do_syscall_64+0x49/0xb0
[ 20.089573][ T291] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 20.095287][ T291] RIP: 0033:0x7f73b083dd07
[ 20.099542][ T291] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[ 20.119158][ T291] RSP: 002b:00007ffe7c345f98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 20.127402][ T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f73b083dd07
[ 20.135220][ T291] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe7c346050
[ 20.143024][ T291] RBP: 00007ffe7c346050 R08: 0000000000000000 R09: 0000000000000000
[ 20.150838][ T291] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe7c347140
[ 20.158648][ T291] R13: 00005555561b4800 R14: 431bde82d7b634db R15: 00007ffe7c3481d0
[ 20.166547][ T291]
[ 20.169408][ T291] Modules linked in:
[ 20.173158][ T291] CR2: 0000000000000170
[ 20.177150][ T291] ---[ end trace e2320c229e0da82b ]---
[ 20.182429][ T291] RIP: 0010:ihold+0x25/0x60
[ 20.186808][ T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 d1 cc ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 d0 ef f0 ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 54 d0 ae
[ 20.206300][ T291] RSP: 0018:ffffc90000987c08 EFLAGS: 00010246
[ 20.212198][ T291] RAX: ffff888119768000 RBX: 0000000000000001 RCX: ffff888119768000
[ 20.220095][ T291] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[ 20.227908][ T291] RBP: ffffc90000987c18 R08: ffffffff81416e7b R09: 0000000000000003
[ 20.235720][ T291] R10: fffffbfff0e5244c R11: dffffc0000000001 R12: dffffc0000000000
[ 20.243529][ T291] R13: ffff88811c52dcc0 R14: 0000000000000000 R15: 1ffff110238a5b9e
[ 20.251341][ T291] FS: 00005555561ab480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 20.260108][ T291] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.266532][ T291] CR2: 0000000000000170 CR3: 000000011ce31000 CR4: 00000000003506a0
[ 20.274344][ T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 20.282376][ T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 20.290204][ T291] Kernel panic - not syncing: Fatal exception
[ 20.296267][ T291] Kernel Offset: disabled
[ 20.300387][ T291] Rebooting in 86400 seconds..