./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2387839241

<...>
DUID 00:04:b0:cd:33:f9:4f:8a:55:45:4d:7b:3b:ee:3a:71:f0:8b
forked to background, child pid 4714
[   34.895970][ T4715] 8021q: adding VLAN 0 to HW filter on device bond0
[   34.911297][ T4715] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts.
execve("./syz-executor2387839241", ["./syz-executor2387839241"], 0x7ffe446ac7d0 /* 10 vars */) = 0
brk(NULL)                               = 0x555555998000
brk(0x555555998d00)                     = 0x555555998d00
arch_prctl(ARCH_SET_FS, 0x555555998380) = 0
set_tid_address(0x555555998650)         = 5046
set_robust_list(0x555555998660, 24)     = 0
rseq(0x555555998ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2387839241", 4096) = 28
getrandom("\xe1\xa3\xff\x53\x2f\x92\xfa\x3b", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555555998d00
brk(0x5555559b9d00)                     = 0x5555559b9d00
brk(0x5555559ba000)                     = 0x5555559ba000
mprotect(0x7ff43409c000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5047 attached
, child_tidptr=0x555555998650) = 5047
[pid  5047] set_robust_list(0x555555998660, 24) = 0
[pid  5047] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5047] setsid()                    = 1
[pid  5047] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5047] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5047] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5047] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5047] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5047] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5047] unshare(CLONE_NEWNS)        = 0
[pid  5047] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5047] unshare(CLONE_NEWIPC)       = 0
[pid  5047] unshare(CLONE_NEWCGROUP)    = 0
[pid  5047] unshare(CLONE_NEWUTS)       = 0
[pid  5047] unshare(CLONE_SYSVSEM)      = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "16777216", 8)     = 8
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "536870912", 9)    = 9
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "1024", 4)         = 4
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "8192", 4)         = 4
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "1024", 4)         = 4
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "1024", 4)         = 4
[pid  5047] close(3)                    = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5047] close(3)                    = 0
[pid  5047] getpid()                    = 1
[pid  5047] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5047] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5047] unshare(CLONE_NEWNET)       = 0
[pid  5047] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5047] write(3, "0 65535", 7)      = 7
[pid  5047] close(3)                    = 0
[pid  5047] mkdir("/dev/binderfs", 0777) = 0
[pid  5047] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5047] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5047] memfd_create("syzkaller", 0) = 3
[pid  5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff42ba00000
[pid  5047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid  5047] munmap(0x7ff42ba00000, 138412032) = 0
[pid  5047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5047] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5047] close(3)                    = 0
[pid  5047] close(4)                    = 0
[pid  5047] mkdir("./file0", 0777)      = 0
[pid  5047] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID, "") = 0
[pid  5047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5047] chdir("./file0")            = 0
[pid  5047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
syzkaller login: [   60.943147][ T5047] loop0: detected capacity change from 0 to 32768
[pid  5047] openat(AT_FDCWD, "./file0/file0", O_ACCMODE|O_EXCL|O_TRUNC|O_APPEND|O_NOFOLLOW) = 4
[pid  5047] exit_group(1)               = ?
[   61.023233][  T109] ------------[ cut here ]------------
[   61.030017][  T109] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2778:24
[   61.037969][  T109] index 1621 is out of range for type 's8[1365]' (aka 'signed char[1365]')
[   61.046779][  T109] CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.8.0-rc2-syzkaller-00043-g2a6526c4f389 #0
[   61.056595][  T109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[   61.066668][  T109] Call Trace:
[   61.069939][  T109]  <TASK>
[   61.072856][  T109]  dump_stack_lvl+0x1e7/0x2d0
[   61.077543][  T109]  ? tcp_gro_dev_warn+0x260/0x260
[   61.082559][  T109]  ? panic+0x850/0x850
[   61.086619][  T109]  ? lock_metapage+0x2f9/0x370
[   61.091527][  T109]  __ubsan_handle_out_of_bounds+0x11c/0x150
[   61.097479][  T109]  dbJoin+0x2e9/0x310
[   61.101567][  T109]  dbFreeBits+0x4ef/0xdb0
[   61.105934][  T109]  dbFree+0x35b/0x670
[   61.109916][  T109]  txFreeMap+0x798/0xd50
[   61.114167][  T109]  txUpdateMap+0x342/0x9e0
[   61.119038][  T109]  ? txCommit+0x6a20/0x6a20
[   61.123802][  T109]  jfs_lazycommit+0x47f/0xb70
[   61.129868][  T109]  ? _raw_spin_unlock_irqrestore+0x8f/0x140
[   61.135942][  T109]  ? lockdep_hardirqs_on+0x98/0x140
[   61.141420][  T109]  ? txFreelock+0x580/0x580
[   61.145922][  T109]  ? do_task_dead+0xd0/0xd0
[   61.151394][  T109]  kthread+0x2d3/0x370
[   61.155476][  T109]  ? txFreelock+0x580/0x580
[   61.160017][  T109]  ? kthread_blkcg+0xd0/0xd0
[   61.164611][  T109]  ret_from_fork+0x48/0x80
[   61.169042][  T109]  ? kthread_blkcg+0xd0/0xd0
[   61.173622][  T109]  ret_from_fork_asm+0x11/0x20
[   61.178382][  T109]  </TASK>
[   61.182577][  T109] ---[ end trace ]---
[   61.186654][  T109] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[   61.193858][  T109] CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.8.0-rc2-syzkaller-00043-g2a6526c4f389 #0
[   61.203672][  T109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[   61.213724][  T109] Call Trace:
[   61.216997][  T109]  <TASK>
[   61.219923][  T109]  dump_stack_lvl+0x1e7/0x2d0
[   61.224690][  T109]  ? tcp_gro_dev_warn+0x260/0x260
[   61.229710][  T109]  ? panic+0x850/0x850
[   61.233768][  T109]  ? vprintk_emit+0x607/0x720
[   61.238443][  T109]  ? vscnprintf+0x5d/0x80
[   61.242783][  T109]  panic+0x349/0x850
[   61.246688][  T109]  ? check_panic_on_warn+0x21/0xa0
[   61.251808][  T109]  ? __memcpy_flushcache+0x2b0/0x2b0
[   61.257105][  T109]  ? _printk+0xd5/0x120
[   61.261262][  T109]  ? panic+0x850/0x850
[   61.265329][  T109]  check_panic_on_warn+0x82/0xa0
[   61.270261][  T109]  __ubsan_handle_out_of_bounds+0x13c/0x150
[   61.276157][  T109]  dbJoin+0x2e9/0x310
[   61.280135][  T109]  dbFreeBits+0x4ef/0xdb0
[   61.284465][  T109]  dbFree+0x35b/0x670
[   61.288499][  T109]  txFreeMap+0x798/0xd50
[   61.292743][  T109]  txUpdateMap+0x342/0x9e0
[   61.297161][  T109]  ? txCommit+0x6a20/0x6a20
[   61.301663][  T109]  jfs_lazycommit+0x47f/0xb70
[   61.306340][  T109]  ? _raw_spin_unlock_irqrestore+0x8f/0x140
[   61.312234][  T109]  ? lockdep_hardirqs_on+0x98/0x140
[   61.317461][  T109]  ? txFreelock+0x580/0x580
[   61.322051][  T109]  ? do_task_dead+0xd0/0xd0
[   61.327195][  T109]  kthread+0x2d3/0x370
[   61.331332][  T109]  ? txFreelock+0x580/0x580
[   61.335839][  T109]  ? kthread_blkcg+0xd0/0xd0
[   61.340435][  T109]  ret_from_fork+0x48/0x80
[   61.344845][  T109]  ? kthread_blkcg+0xd0/0xd0
[   61.349425][  T109]  ret_from_fork_asm+0x11/0x20
[   61.354200][  T109]  </TASK>
[   61.357389][  T109] Kernel Offset: disabled
[   61.361803][  T109] Rebooting in 86400 seconds..