./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor520898632
<...>
Warning: Permanently added '10.128.0.2' (ED25519) to the list of known hosts.
execve("./syz-executor520898632", ["./syz-executor520898632"], 0x7ffde378fa60 /* 10 vars */) = 0
brk(NULL) = 0x5555671b0000
brk(0x5555671b0d00) = 0x5555671b0d00
arch_prctl(ARCH_SET_FS, 0x5555671b0380) = 0
set_tid_address(0x5555671b0650) = 5058
set_robust_list(0x5555671b0660, 24) = 0
rseq(0x5555671b0ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor520898632", 4096) = 27
getrandom("\x38\x77\x29\x69\x38\x67\xf5\x04", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555671b0d00
brk(0x5555671d1d00) = 0x5555671d1d00
brk(0x5555671d2000) = 0x5555671d2000
mprotect(0x7f146908c000, 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
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1460a00000
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
munmap(0x7f1460a00000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./bus", 0777) = 0
mount("/dev/loop0", "./bus", "jfs", MS_NOSUID|MS_POSIXACL, "") = 0
openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
chdir("./bus") = 0
syzkaller login: [ 64.937028][ T5058] loop0: detected capacity change from 0 to 32768
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, ".", O_RDONLY) = 4
[ 65.016718][ T5058] ------------[ cut here ]------------
[ 65.022831][ T5058] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2892:30
[ 65.031410][ T5058] index -1 is out of range for type 'struct dtslot[128]'
[ 65.038775][ T5058] CPU: 1 PID: 5058 Comm: syz-executor520 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
[ 65.049214][ T5058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 65.059805][ T5058] Call Trace:
[ 65.063284][ T5058]
[ 65.066263][ T5058] dump_stack_lvl+0x241/0x360
[ 65.071117][ T5058] ? __pfx_dump_stack_lvl+0x10/0x10
[ 65.076439][ T5058] ? __pfx__printk+0x10/0x10
[ 65.081052][ T5058] ? alloc_pages_mpol+0x40c/0x650
[ 65.086109][ T5058] __ubsan_handle_out_of_bounds+0x121/0x150
[ 65.092053][ T5058] ? alloc_pages+0xef/0x170
[ 65.096762][ T5058] jfs_readdir+0x1cb4/0x4660
[ 65.101680][ T5058] ? __pfx_jfs_readdir+0x10/0x10
[ 65.106899][ T5058] ? __pfx___down_write_common+0x10/0x10
[ 65.113176][ T5058] ? __pfx___mutex_lock+0x10/0x10
[ 65.118238][ T5058] ? __pfx_jfs_readdir+0x10/0x10
[ 65.123181][ T5058] wrap_directory_iterator+0x94/0xe0
[ 65.128734][ T5058] iterate_dir+0x539/0x6f0
[ 65.133191][ T5058] __se_sys_getdents64+0x20d/0x4f0
[ 65.138398][ T5058] ? _raw_spin_unlock_irq+0x2e/0x50
[ 65.143911][ T5058] ? __pfx___se_sys_getdents64+0x10/0x10
[ 65.149807][ T5058] ? __pfx_filldir64+0x10/0x10
[ 65.154811][ T5058] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 65.161540][ T5058] ? do_syscall_64+0x10a/0x240
[ 65.166355][ T5058] ? syscall_trace_enter+0x5f/0x150
[ 65.171644][ T5058] do_syscall_64+0xfb/0x240
[ 65.176155][ T5058] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 65.182595][ T5058] RIP: 0033:0x7f14690135f9
[ 65.187387][ T5058] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 65.207970][ T5058] RSP: 002b:00007ffd56ff0648 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
[ 65.216421][ T5058] RAX: ffffffffffffffda RBX: 00007ffd56ff0818 RCX: 00007f14690135f9
[ 65.224414][ T5058] RDX: 000000000000102a RSI: 0000000020002280 RDI: 0000000000000004
[ 65.232598][ T5058] RBP: 00007f146908c610 R08: 0000000000000000 R09: 00007ffd56ff0818
[ 65.240591][ T5058] R10: 00000000000060cc R11: 0000000000000246 R12: 0000000000000001
[ 65.248690][ T5058] R13: 00007ffd56ff0808 R14: 0000000000000001 R15: 0000000000000001
[ 65.256878][ T5058]
[ 65.260705][ T5058] ---[ end trace ]---
[ 65.264709][ T5058] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 65.272022][ T5058] CPU: 1 PID: 5058 Comm: syz-executor520 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
[ 65.282546][ T5058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 65.292794][ T5058] Call Trace:
[ 65.296086][ T5058]
[ 65.299049][ T5058] dump_stack_lvl+0x241/0x360
[ 65.304017][ T5058] ? __pfx_dump_stack_lvl+0x10/0x10
[ 65.309336][ T5058] ? __pfx__printk+0x10/0x10
[ 65.314149][ T5058] ? vprintk_emit+0x631/0x770
[ 65.318850][ T5058] ? vscnprintf+0x5d/0x90
[ 65.323294][ T5058] panic+0x349/0x860
[ 65.327338][ T5058] ? check_panic_on_warn+0x21/0xb0
[ 65.332510][ T5058] ? __pfx_panic+0x10/0x10
[ 65.337107][ T5058] ? _printk+0xd5/0x120
[ 65.341407][ T5058] ? __pfx__printk+0x10/0x10
[ 65.346024][ T5058] ? alloc_pages_mpol+0x40c/0x650
[ 65.351263][ T5058] check_panic_on_warn+0x86/0xb0
[ 65.356230][ T5058] __ubsan_handle_out_of_bounds+0x141/0x150
[ 65.362174][ T5058] ? alloc_pages+0xef/0x170
[ 65.366684][ T5058] jfs_readdir+0x1cb4/0x4660
[ 65.371307][ T5058] ? __pfx_jfs_readdir+0x10/0x10
[ 65.376296][ T5058] ? __pfx___down_write_common+0x10/0x10
[ 65.382096][ T5058] ? __pfx___mutex_lock+0x10/0x10
[ 65.387125][ T5058] ? __pfx_jfs_readdir+0x10/0x10
[ 65.392142][ T5058] wrap_directory_iterator+0x94/0xe0
[ 65.397488][ T5058] iterate_dir+0x539/0x6f0
[ 65.402018][ T5058] __se_sys_getdents64+0x20d/0x4f0
[ 65.407128][ T5058] ? _raw_spin_unlock_irq+0x2e/0x50
[ 65.412366][ T5058] ? __pfx___se_sys_getdents64+0x10/0x10
[ 65.418115][ T5058] ? __pfx_filldir64+0x10/0x10
[ 65.422999][ T5058] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 65.430828][ T5058] ? do_syscall_64+0x10a/0x240
[ 65.435968][ T5058] ? syscall_trace_enter+0x5f/0x150
[ 65.441529][ T5058] do_syscall_64+0xfb/0x240
[ 65.446175][ T5058] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 65.453024][ T5058] RIP: 0033:0x7f14690135f9
[ 65.457459][ T5058] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 65.478909][ T5058] RSP: 002b:00007ffd56ff0648 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
[ 65.487607][ T5058] RAX: ffffffffffffffda RBX: 00007ffd56ff0818 RCX: 00007f14690135f9
[ 65.495882][ T5058] RDX: 000000000000102a RSI: 0000000020002280 RDI: 0000000000000004
[ 65.504060][ T5058] RBP: 00007f146908c610 R08: 0000000000000000 R09: 00007ffd56ff0818
[ 65.512559][ T5058] R10: 00000000000060cc R11: 0000000000000246 R12: 0000000000000001
[ 65.522038][ T5058] R13: 00007ffd56ff0808 R14: 0000000000000001 R15: 0000000000000001
[ 65.530139][ T5058]
[ 65.533687][ T5058] Kernel Offset: disabled
[ 65.538104][ T5058] Rebooting in 86400 seconds..