./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2907941859
<...>
forked to background, child pid 4749
no interfaces have a carrier
[ 46.665346][ T4750] 8021q: adding VLAN 0 to HW filter on device bond0
[ 46.689548][ T4750] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.195' (ED25519) to the list of known hosts.
execve("./syz-executor2907941859", ["./syz-executor2907941859"], 0x7ffe8b90c610 /* 10 vars */) = 0
brk(NULL) = 0x55556d879000
brk(0x55556d879d00) = 0x55556d879d00
arch_prctl(ARCH_SET_FS, 0x55556d879380) = 0
set_tid_address(0x55556d879650) = 5085
set_robust_list(0x55556d879660, 24) = 0
rseq(0x55556d879ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2907941859", 4096) = 28
getrandom("\xb5\x03\x51\x21\x8a\x8e\x36\xee", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556d879d00
brk(0x55556d89ad00) = 0x55556d89ad00
brk(0x55556d89b000) = 0x55556d89b000
mprotect(0x7f6e995a4000, 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
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./strace-static-x86_64: Process 5086 attached
, child_tidptr=0x55556d879650) = 5086
[pid 5086] set_robust_list(0x55556d879660, 24) = 0
[pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5086] setpgid(0, 0) = 0
[pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5086] write(3, "1000", 4) = 4
[pid 5086] close(3executing program
) = 0
[pid 5086] write(1, "executing program\n", 18) = 18
[pid 5086] memfd_create("syzkaller", 0) = 3
[pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6e91000000
[pid 5086] 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 5086] munmap(0x7f6e91000000, 138412032) = 0
[pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5086] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5086] close(3) = 0
[pid 5086] close(4) = 0
[pid 5086] mkdir("./file2", 0777) = 0
[pid 5086] mount("/dev/loop0", "./file2", "jfs", MS_NOSUID|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL, "") = 0
[pid 5086] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3
[pid 5086] chdir("./file2") = 0
[pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5086] openat(AT_FDCWD, ".", O_RDONLY) = 4
syzkaller login: [ 71.000989][ T5086] loop0: detected capacity change from 0 to 32768
[ 71.056871][ T5086] ------------[ cut here ]------------
[ 71.062703][ T5086] UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:1629:18
[ 71.070135][ T5086] shift exponent -1 is negative
[ 71.075131][ T5086] CPU: 0 PID: 5086 Comm: syz-executor290 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
[ 71.085662][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 71.095724][ T5086] Call Trace:
[ 71.099098][ T5086]
[ 71.102031][ T5086] dump_stack_lvl+0x241/0x360
[ 71.106738][ T5086] ? __pfx_dump_stack_lvl+0x10/0x10
[ 71.111971][ T5086] ? __pfx__printk+0x10/0x10
[ 71.116583][ T5086] ? dbAllocAG+0x32d/0x10b0
[ 71.121107][ T5086] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420
[ 71.127572][ T5086] dbDiscardAG+0x5a7/0xa10
[ 71.132018][ T5086] ? __pfx_dbDiscardAG+0x10/0x10
[ 71.136962][ T5086] ? __pfx_lock_release+0x10/0x10
[ 71.142000][ T5086] jfs_ioc_trim+0x433/0x670
[ 71.146519][ T5086] jfs_ioctl+0x2d0/0x3e0
[ 71.150773][ T5086] ? __pfx_jfs_ioctl+0x10/0x10
[ 71.155570][ T5086] ? bpf_lsm_file_ioctl+0x9/0x10
[ 71.160534][ T5086] ? security_file_ioctl+0x87/0xb0
[ 71.165683][ T5086] ? __pfx_jfs_ioctl+0x10/0x10
[ 71.170450][ T5086] __se_sys_ioctl+0xfc/0x170
[ 71.175055][ T5086] do_syscall_64+0xf3/0x230
[ 71.179574][ T5086] ? clear_bhb_loop+0x35/0x90
[ 71.184273][ T5086] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.190195][ T5086] RIP: 0033:0x7f6e9952bad9
[ 71.194622][ T5086] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 71.214257][ T5086] RSP: 002b:00007fff9232dc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 71.222700][ T5086] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6e9952bad9
[ 71.230689][ T5086] RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004
[ 71.238671][ T5086] RBP: 00007f6e995a45f0 R08: 000055556d87a4c0 R09: 000055556d87a4c0
[ 71.246652][ T5086] R10: 0000000000005ea4 R11: 0000000000000246 R12: 00007fff9232dc40
[ 71.254630][ T5086] R13: 00007fff9232de68 R14: 431bde82d7b634db R15: 00007f6e9957403b
[ 71.262624][ T5086]
[ 71.266039][ T5086] ---[ end trace ]---
[ 71.270600][ T5086] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 71.277825][ T5086] CPU: 0 PID: 5086 Comm: syz-executor290 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
[ 71.288324][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 71.298381][ T5086] Call Trace:
[ 71.301663][ T5086]
[ 71.304592][ T5086] dump_stack_lvl+0x241/0x360
[ 71.309383][ T5086] ? __pfx_dump_stack_lvl+0x10/0x10
[ 71.314690][ T5086] ? __pfx__printk+0x10/0x10
[ 71.319293][ T5086] ? vprintk_emit+0x631/0x770
[ 71.323991][ T5086] ? vscnprintf+0x5d/0x90
[ 71.328337][ T5086] panic+0x349/0x860
[ 71.332239][ T5086] ? check_panic_on_warn+0x21/0xb0
[ 71.337363][ T5086] ? __pfx_panic+0x10/0x10
[ 71.341785][ T5086] ? _printk+0xd5/0x120
[ 71.345951][ T5086] ? __pfx__printk+0x10/0x10
[ 71.350588][ T5086] ? dbAllocAG+0x32d/0x10b0
[ 71.355098][ T5086] check_panic_on_warn+0x86/0xb0
[ 71.360051][ T5086] __ubsan_handle_shift_out_of_bounds+0x3e7/0x420
[ 71.366489][ T5086] dbDiscardAG+0x5a7/0xa10
[ 71.370930][ T5086] ? __pfx_dbDiscardAG+0x10/0x10
[ 71.375883][ T5086] ? __pfx_lock_release+0x10/0x10
[ 71.380925][ T5086] jfs_ioc_trim+0x433/0x670
[ 71.385450][ T5086] jfs_ioctl+0x2d0/0x3e0
[ 71.389714][ T5086] ? __pfx_jfs_ioctl+0x10/0x10
[ 71.394534][ T5086] ? bpf_lsm_file_ioctl+0x9/0x10
[ 71.399510][ T5086] ? security_file_ioctl+0x87/0xb0
[ 71.404627][ T5086] ? __pfx_jfs_ioctl+0x10/0x10
[ 71.409420][ T5086] __se_sys_ioctl+0xfc/0x170
[ 71.414043][ T5086] do_syscall_64+0xf3/0x230
[ 71.418735][ T5086] ? clear_bhb_loop+0x35/0x90
[ 71.423420][ T5086] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.429318][ T5086] RIP: 0033:0x7f6e9952bad9
[ 71.433844][ T5086] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 71.453629][ T5086] RSP: 002b:00007fff9232dc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 71.462054][ T5086] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6e9952bad9
[ 71.470032][ T5086] RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004
[ 71.478013][ T5086] RBP: 00007f6e995a45f0 R08: 000055556d87a4c0 R09: 000055556d87a4c0
[ 71.486022][ T5086] R10: 0000000000005ea4 R11: 0000000000000246 R12: 00007fff9232dc40
[ 71.494024][ T5086] R13: 00007fff9232de68 R14: 431bde82d7b634db R15: 00007f6e9957403b
[ 71.502033][ T5086]
[ 71.505299][ T5086] Kernel Offset: disabled
[ 71.509673][ T5086] Rebooting in 86400 seconds..