./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1902254088
<...>
[ 97.253993][ T977] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.10.7' (ED25519) to the list of known hosts.
execve("./syz-executor1902254088", ["./syz-executor1902254088"], 0x7ffc90acfdc0 /* 10 vars */) = 0
brk(NULL) = 0x555586931000
brk(0x555586931d00) = 0x555586931d00
arch_prctl(ARCH_SET_FS, 0x555586931380) = 0
set_tid_address(0x555586931650) = 5841
set_robust_list(0x555586931660, 24) = 0
rseq(0x555586931ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1902254088", 4096) = 28
getrandom("\x23\x6c\x8d\x88\x33\x9d\x76\x52", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555586931d00
brk(0x555586952d00) = 0x555586952d00
brk(0x555586953000) = 0x555586953000
mprotect(0x7f83470b0000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
executing program
write(1, "executing program\n", 18) = 18
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f833ea00000
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(0x7f833ea00000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file0", 0777) = 0
mount("/dev/loop0", "./file0", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "errors=continue,uid=0x000000000000ee00,discard=0x0000000000000003,grpquota,iocharset=macromanian,noq"...) = 0
openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 99.558333][ T5841] loop0: detected capacity change from 0 to 32768
chdir("./file0") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 99.624733][ T5841] ------------[ cut here ]------------
[ 99.632673][ T5841] UBSAN: shift-out-of-bounds in fs/jfs/super.c:140:14
[ 99.640519][ T5841] shift exponent 115 is too large for 64-bit type 's64' (aka 'long long')
[ 99.651516][ T5841] CPU: 1 UID: 0 PID: 5841 Comm: syz-executor190 Not tainted 6.15.0-next-20250606-syzkaller #0 PREEMPT(full)
[ 99.651544][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 99.651564][ T5841] Call Trace:
[ 99.651572][ T5841]
[ 99.651581][ T5841] dump_stack_lvl+0x189/0x250
[ 99.651622][ T5841] ? do_syscall_64+0xfa/0x3b0
[ 99.651652][ T5841] ? __pfx_dump_stack_lvl+0x10/0x10
[ 99.651669][ T5841] ? __pfx__printk+0x10/0x10
[ 99.651703][ T5841] ubsan_epilogue+0xa/0x40
[ 99.651724][ T5841] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 99.651771][ T5841] jfs_statfs+0x4d1/0x550
[ 99.651801][ T5841] vfs_statfs+0x144/0x2d0
[ 99.651836][ T5841] ovl_fill_super+0x9d9/0x35d0
[ 99.651893][ T5841] ? __pfx_ovl_fill_super+0x10/0x10
[ 99.651937][ T5841] ? __raw_spin_lock_init+0x45/0x100
[ 99.651966][ T5841] ? __init_swait_queue_head+0xa9/0x150
[ 99.651991][ T5841] ? shrinker_register+0x16b/0x230
[ 99.652020][ T5841] ? sget_fc+0x962/0xa40
[ 99.652049][ T5841] ? __pfx_set_anon_super_fc+0x10/0x10
[ 99.652079][ T5841] ? __pfx_ovl_fill_super+0x10/0x10
[ 99.652106][ T5841] get_tree_nodev+0xbb/0x150
[ 99.652128][ T5841] vfs_get_tree+0x8f/0x2b0
[ 99.652152][ T5841] do_new_mount+0x24a/0xa40
[ 99.652191][ T5841] __se_sys_mount+0x317/0x410
[ 99.652226][ T5841] ? __pfx___se_sys_mount+0x10/0x10
[ 99.652246][ T5841] ? rcu_is_watching+0x15/0xb0
[ 99.652283][ T5841] ? __x64_sys_mount+0x20/0xc0
[ 99.652308][ T5841] do_syscall_64+0xfa/0x3b0
[ 99.652329][ T5841] ? lockdep_hardirqs_on+0x9c/0x150
[ 99.652349][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 99.652369][ T5841] ? clear_bhb_loop+0x60/0xb0
[ 99.652393][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 99.652413][ T5841] RIP: 0033:0x7f8347037a39
[ 99.652437][ T5841] 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
[ 99.652454][ T5841] RSP: 002b:00007ffdd0158b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 99.652476][ T5841] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f8347037a39
[ 99.652490][ T5841] RDX: 0000200000000000 RSI: 0000200000000140 RDI: 0000000000000000
[ 99.652503][ T5841] RBP: 00007f834708005e R08: 00002000000003c0 R09: 0000000000000000
[ 99.652516][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[ 99.652529][ T5841] R13: 65756e69746e6f63 R14: 633d73726f727265 R15: 0000000000000001
[ 99.652561][ T5841]
[ 99.924948][ T5841] ---[ end trace ]---
[ 99.929158][ T5841] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 99.936419][ T5841] CPU: 0 UID: 0 PID: 5841 Comm: syz-executor190 Not tainted 6.15.0-next-20250606-syzkaller #0 PREEMPT(full)
[ 99.949114][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 99.959734][ T5841] Call Trace:
[ 99.963334][ T5841]
[ 99.966980][ T5841] dump_stack_lvl+0x99/0x250
[ 99.972328][ T5841] ? __asan_memcpy+0x40/0x70
[ 99.978456][ T5841] ? __pfx_dump_stack_lvl+0x10/0x10
[ 99.984577][ T5841] ? __pfx__printk+0x10/0x10
[ 99.990470][ T5841] panic+0x2db/0x790
[ 99.995050][ T5841] ? __pfx_panic+0x10/0x10
[ 99.999804][ T5841] ? _printk+0xcf/0x120
[ 100.005882][ T5841] ? __pfx__printk+0x10/0x10
[ 100.010990][ T5841] check_panic_on_warn+0x89/0xb0
[ 100.016761][ T5841] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 100.023324][ T5841] jfs_statfs+0x4d1/0x550
[ 100.027775][ T5841] vfs_statfs+0x144/0x2d0
[ 100.032294][ T5841] ovl_fill_super+0x9d9/0x35d0
[ 100.037392][ T5841] ? __pfx_ovl_fill_super+0x10/0x10
[ 100.042721][ T5841] ? __raw_spin_lock_init+0x45/0x100
[ 100.048030][ T5841] ? __init_swait_queue_head+0xa9/0x150
[ 100.054017][ T5841] ? shrinker_register+0x16b/0x230
[ 100.059392][ T5841] ? sget_fc+0x962/0xa40
[ 100.064862][ T5841] ? __pfx_set_anon_super_fc+0x10/0x10
[ 100.070723][ T5841] ? __pfx_ovl_fill_super+0x10/0x10
[ 100.076385][ T5841] get_tree_nodev+0xbb/0x150
[ 100.081092][ T5841] vfs_get_tree+0x8f/0x2b0
[ 100.086231][ T5841] do_new_mount+0x24a/0xa40
[ 100.091588][ T5841] __se_sys_mount+0x317/0x410
[ 100.098097][ T5841] ? __pfx___se_sys_mount+0x10/0x10
[ 100.104487][ T5841] ? rcu_is_watching+0x15/0xb0
[ 100.109293][ T5841] ? __x64_sys_mount+0x20/0xc0
[ 100.114079][ T5841] do_syscall_64+0xfa/0x3b0
[ 100.118886][ T5841] ? lockdep_hardirqs_on+0x9c/0x150
[ 100.124381][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 100.131187][ T5841] ? clear_bhb_loop+0x60/0xb0
[ 100.136324][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 100.142258][ T5841] RIP: 0033:0x7f8347037a39
[ 100.146686][ T5841] 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
[ 100.168124][ T5841] RSP: 002b:00007ffdd0158b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 100.176848][ T5841] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f8347037a39
[ 100.185101][ T5841] RDX: 0000200000000000 RSI: 0000200000000140 RDI: 0000000000000000
[ 100.193370][ T5841] RBP: 00007f834708005e R08: 00002000000003c0 R09: 0000000000000000
[ 100.201657][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[ 100.210739][ T5841] R13: 65756e69746e6f63 R14: 633d73726f727265 R15: 0000000000000001
[ 100.219407][ T5841]
[ 100.223813][ T5841] Kernel Offset: disabled
[ 100.229407][ T5841] Rebooting in 86400 seconds..