./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1306436353
<...>
Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts.
execve("./syz-executor1306436353", ["./syz-executor1306436353"], 0x7fffb5b3ff20 /* 10 vars */) = 0
brk(NULL) = 0x55557eb52000
brk(0x55557eb52d00) = 0x55557eb52d00
arch_prctl(ARCH_SET_FS, 0x55557eb52380) = 0
set_tid_address(0x55557eb52650) = 5821
set_robust_list(0x55557eb52660, 24) = 0
rseq(0x55557eb52ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1306436353", 4096) = 28
getrandom("\xbb\x2e\x18\x83\x25\xb9\xeb\xc0", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55557eb52d00
brk(0x55557eb73d00) = 0x55557eb73d00
brk(0x55557eb74000) = 0x55557eb74000
mprotect(0x7feb3a133000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
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 5822 attached
, child_tidptr=0x55557eb52650) = 5822
[pid 5822] set_robust_list(0x55557eb52660, 24) = 0
[pid 5822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5822] setpgid(0, 0) = 0
[pid 5822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5822] write(3, "1000", 4) = 4
[pid 5822] close(3) = 0
[pid 5822] write(1, "executing program\n", 18executing program
) = 18
[pid 5822] memfd_create("syzkaller", 0) = 3
[pid 5822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7feb31c00000
[pid 5822] 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 5822] munmap(0x7feb31c00000, 138412032) = 0
[pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5822] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5822] close(3) = 0
[pid 5822] close(4) = 0
[pid 5822] mkdir("./file0", 0777) = 0
[pid 5822] mount("/dev/loop0", "./file0", "jfs", MS_REC, "") = 0
[pid 5822] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5822] chdir("./file0") = 0
[pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5822] openat(AT_FDCWD, ".", O_RDONLY) = 4
[ 75.994753][ T5822] loop0: detected capacity change from 0 to 32768
[ 76.053902][ T5822] ------------[ cut here ]------------
[ 76.059983][ T5822] UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:1400:9
[ 76.067033][ T5822] shift exponent -335544310 is negative
[ 76.073190][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor130 Not tainted 6.14.0-rc5-syzkaller #0
[ 76.073212][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 76.073227][ T5822] Call Trace:
[ 76.073233][ T5822]
[ 76.073240][ T5822] dump_stack_lvl+0x241/0x360
[ 76.073293][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10
[ 76.073315][ T5822] ? __pfx__printk+0x10/0x10
[ 76.073351][ T5822] ? __pfx_lock_metapage+0x10/0x10
[ 76.073390][ T5822] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420
[ 76.073417][ T5822] ? folio_unlock+0x10e/0x170
[ 76.073472][ T5822] dbAllocAG+0x1087/0x10b0
[ 76.073510][ T5822] ? __pfx_dbAllocAG+0x10/0x10
[ 76.073532][ T5822] ? rcu_is_watching+0x15/0xb0
[ 76.073554][ T5822] ? trace_kmalloc+0x1f/0xd0
[ 76.073573][ T5822] ? dbDiscardAG+0x21f/0xa20
[ 76.073593][ T5822] ? down_read+0x82b/0xa40
[ 76.073623][ T5822] dbDiscardAG+0x352/0xa20
[ 76.073648][ T5822] ? __pfx_dbDiscardAG+0x10/0x10
[ 76.073666][ T5822] ? __might_fault+0xaa/0x120
[ 76.073684][ T5822] ? __pfx_lock_release+0x10/0x10
[ 76.073704][ T5822] ? rcu_is_watching+0x15/0xb0
[ 76.073721][ T5822] jfs_ioc_trim+0x45a/0x6b0
[ 76.073749][ T5822] jfs_ioctl+0x2cd/0x3e0
[ 76.073770][ T5822] ? __pfx_jfs_ioctl+0x10/0x10
[ 76.073790][ T5822] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 76.073812][ T5822] ? __pfx_jfs_ioctl+0x10/0x10
[ 76.073831][ T5822] __se_sys_ioctl+0xf5/0x170
[ 76.073852][ T5822] do_syscall_64+0xf3/0x230
[ 76.073872][ T5822] ? clear_bhb_loop+0x35/0x90
[ 76.073895][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 76.073918][ T5822] RIP: 0033:0x7feb3a0bab19
[ 76.073935][ T5822] 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
[ 76.073946][ T5822] RSP: 002b:00007ffd2811fb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 76.073962][ T5822] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feb3a0bab19
[ 76.073972][ T5822] RDX: 0000400000000080 RSI: 00000000c0185879 RDI: 0000000000000004
[ 76.073982][ T5822] RBP: 00007feb3a1335f0 R08: 000055557eb534c0 R09: 000055557eb534c0
[ 76.073992][ T5822] R10: 0000000000005ef0 R11: 0000000000000246 R12: 00007ffd2811fb80
[ 76.074001][ T5822] R13: 00007ffd2811fda8 R14: 431bde82d7b634db R15: 00007feb3a10303b
[ 76.074023][ T5822]
[ 76.074034][ T5822] ---[ end trace ]---
[ 76.306902][ T5822] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 76.314098][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor130 Not tainted 6.14.0-rc5-syzkaller #0
[ 76.323463][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 76.333520][ T5822] Call Trace:
[ 76.336820][ T5822]
[ 76.339763][ T5822] dump_stack_lvl+0x241/0x360
[ 76.344465][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10
[ 76.349687][ T5822] ? __pfx__printk+0x10/0x10
[ 76.354289][ T5822] ? vscnprintf+0x5d/0x90
[ 76.358626][ T5822] panic+0x349/0x880
[ 76.362539][ T5822] ? check_panic_on_warn+0x21/0xb0
[ 76.367669][ T5822] ? __pfx_panic+0x10/0x10
[ 76.372098][ T5822] ? _printk+0xd5/0x120
[ 76.376268][ T5822] ? __pfx__printk+0x10/0x10
[ 76.380873][ T5822] check_panic_on_warn+0x86/0xb0
[ 76.385826][ T5822] __ubsan_handle_shift_out_of_bounds+0x3e7/0x420
[ 76.392271][ T5822] ? folio_unlock+0x10e/0x170
[ 76.396974][ T5822] dbAllocAG+0x1087/0x10b0
[ 76.401422][ T5822] ? __pfx_dbAllocAG+0x10/0x10
[ 76.406193][ T5822] ? rcu_is_watching+0x15/0xb0
[ 76.410964][ T5822] ? trace_kmalloc+0x1f/0xd0
[ 76.415567][ T5822] ? dbDiscardAG+0x21f/0xa20
[ 76.420164][ T5822] ? down_read+0x82b/0xa40
[ 76.424607][ T5822] dbDiscardAG+0x352/0xa20
[ 76.429036][ T5822] ? __pfx_dbDiscardAG+0x10/0x10
[ 76.434052][ T5822] ? __might_fault+0xaa/0x120
[ 76.438766][ T5822] ? __pfx_lock_release+0x10/0x10
[ 76.443807][ T5822] ? rcu_is_watching+0x15/0xb0
[ 76.448583][ T5822] jfs_ioc_trim+0x45a/0x6b0
[ 76.453118][ T5822] jfs_ioctl+0x2cd/0x3e0
[ 76.457384][ T5822] ? __pfx_jfs_ioctl+0x10/0x10
[ 76.462169][ T5822] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 76.468517][ T5822] ? __pfx_jfs_ioctl+0x10/0x10
[ 76.473304][ T5822] __se_sys_ioctl+0xf5/0x170
[ 76.477910][ T5822] do_syscall_64+0xf3/0x230
[ 76.482426][ T5822] ? clear_bhb_loop+0x35/0x90
[ 76.487119][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 76.493022][ T5822] RIP: 0033:0x7feb3a0bab19
[ 76.497451][ T5822] 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
[ 76.517074][ T5822] RSP: 002b:00007ffd2811fb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 76.525526][ T5822] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feb3a0bab19
[ 76.533535][ T5822] RDX: 0000400000000080 RSI: 00000000c0185879 RDI: 0000000000000004
[ 76.541529][ T5822] RBP: 00007feb3a1335f0 R08: 000055557eb534c0 R09: 000055557eb534c0
[ 76.549518][ T5822] R10: 0000000000005ef0 R11: 0000000000000246 R12: 00007ffd2811fb80
[ 76.557503][ T5822] R13: 00007ffd2811fda8 R14: 431bde82d7b634db R15: 00007feb3a10303b
[ 76.565520][ T5822]
[ 76.568874][ T5822] Kernel Offset: disabled
[ 76.573242][ T5822] Rebooting in 86400 seconds..