./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3793006380
<...>
Warning: Permanently added '10.128.0.14' (ED25519) to the list of known hosts.
execve("./syz-executor3793006380", ["./syz-executor3793006380"], 0x7ffff53e8320 /* 10 vars */) = 0
brk(NULL) = 0x555561923000
brk(0x555561923d00) = 0x555561923d00
arch_prctl(ARCH_SET_FS, 0x555561923380) = 0
set_tid_address(0x555561923650) = 5861
set_robust_list(0x555561923660, 24) = 0
rseq(0x555561923ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3793006380", 4096) = 28
getrandom("\xb8\xc3\x48\x29\xb3\x27\x4e\xc0", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555561923d00
brk(0x555561944d00) = 0x555561944d00
brk(0x555561945000) = 0x555561945000
mprotect(0x7ff35ee47000, 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
mkdir("./file0", 000) = 0
pipe2([3, 4], 0) = 0
write(4, "\x15\x00\x00\x00\x65\xff\xff\x00\x10\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x00\x00", 21) = 21
dup(4) = 5
write(5, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 24) = 24
[ 68.735011][ T5861] ------------[ cut here ]------------
[ 68.741233][ T5861] UBSAN: shift-out-of-bounds in fs/9p/vfs_super.c:57:22
[ 68.748225][ T5861] shift exponent 32 is too large for 32-bit type 'int'
[ 68.755121][ T5861] CPU: 0 UID: 0 PID: 5861 Comm: syz-executor379 Not tainted 6.17.0-rc2-next-20250818-syzkaller #0 PREEMPT(full)
[ 68.755147][ T5861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 68.755157][ T5861] Call Trace:
[ 68.755163][ T5861]
[ 68.755169][ T5861] dump_stack_lvl+0x189/0x250
[ 68.755200][ T5861] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.755223][ T5861] ? __pfx__printk+0x10/0x10
[ 68.755250][ T5861] ubsan_epilogue+0xa/0x40
[ 68.755268][ T5861] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 68.755294][ T5861] ? __pfx_v9fs_set_super+0x10/0x10
[ 68.755316][ T5861] v9fs_get_tree+0x957/0xa90
[ 68.755339][ T5861] ? __pfx_v9fs_get_tree+0x10/0x10
[ 68.755364][ T5861] vfs_get_tree+0x8f/0x2b0
[ 68.755385][ T5861] do_new_mount+0x2a2/0xa30
[ 68.755407][ T5861] ? ns_capable+0x8a/0xf0
[ 68.755427][ T5861] ? __pfx_do_new_mount+0x10/0x10
[ 68.755446][ T5861] ? path_mount+0x61c/0xfe0
[ 68.755465][ T5861] ? user_path_at+0x44/0x60
[ 68.755484][ T5861] __se_sys_mount+0x317/0x410
[ 68.755507][ T5861] ? __pfx___se_sys_mount+0x10/0x10
[ 68.755530][ T5861] ? __x64_sys_mount+0x20/0xc0
[ 68.755552][ T5861] do_syscall_64+0xfa/0x3b0
[ 68.755573][ T5861] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.755588][ T5861] ? clear_bhb_loop+0x60/0xb0
[ 68.755605][ T5861] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.755619][ T5861] RIP: 0033:0x7ff35edd46a9
[ 68.755651][ T5861] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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
[ 68.755669][ T5861] RSP: 002b:00007ffeee8a4078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.755686][ T5861] RAX: ffffffffffffffda RBX: 00002000000025c0 RCX: 00007ff35edd46a9
[ 68.755697][ T5861] RDX: 00002000000000c0 RSI: 00002000000025c0 RDI: 0000000000000000
[ 68.755707][ T5861] RBP: 0000200000000280 R08: 0000200000000280 R09: 00007ffeee8a4258
[ 68.755717][ T5861] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff35ee1d017
[ 68.755727][ T5861] R13: 00007ffeee8a4248 R14: 0000000000000001 R15: 0000000000000001
[ 68.755743][ T5861]
[ 68.755751][ T5861] ---[ end trace ]---
[ 68.967037][ T5861] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 68.974255][ T5861] CPU: 1 UID: 0 PID: 5861 Comm: syz-executor379 Not tainted 6.17.0-rc2-next-20250818-syzkaller #0 PREEMPT(full)
[ 68.986139][ T5861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 68.996214][ T5861] Call Trace:
[ 68.999499][ T5861]
[ 69.002428][ T5861] dump_stack_lvl+0x99/0x250
[ 69.007028][ T5861] ? __asan_memcpy+0x40/0x70
[ 69.011623][ T5861] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.016828][ T5861] ? __pfx__printk+0x10/0x10
[ 69.021426][ T5861] vpanic+0x281/0x750
[ 69.025410][ T5861] ? __pfx_vpanic+0x10/0x10
[ 69.029913][ T5861] panic+0xb9/0xc0
[ 69.033632][ T5861] ? __pfx_panic+0x10/0x10
[ 69.038051][ T5861] ? __pfx__printk+0x10/0x10
[ 69.042649][ T5861] check_panic_on_warn+0x89/0xb0
[ 69.047589][ T5861] __ubsan_handle_shift_out_of_bounds+0x386/0x410
[ 69.054011][ T5861] ? __pfx_v9fs_set_super+0x10/0x10
[ 69.059905][ T5861] v9fs_get_tree+0x957/0xa90
[ 69.064500][ T5861] ? __pfx_v9fs_get_tree+0x10/0x10
[ 69.069613][ T5861] vfs_get_tree+0x8f/0x2b0
[ 69.074032][ T5861] do_new_mount+0x2a2/0xa30
[ 69.078538][ T5861] ? ns_capable+0x8a/0xf0
[ 69.082869][ T5861] ? __pfx_do_new_mount+0x10/0x10
[ 69.087892][ T5861] ? path_mount+0x61c/0xfe0
[ 69.092392][ T5861] ? user_path_at+0x44/0x60
[ 69.096896][ T5861] __se_sys_mount+0x317/0x410
[ 69.101575][ T5861] ? __pfx___se_sys_mount+0x10/0x10
[ 69.106787][ T5861] ? __x64_sys_mount+0x20/0xc0
[ 69.111573][ T5861] do_syscall_64+0xfa/0x3b0
[ 69.116096][ T5861] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.122163][ T5861] ? clear_bhb_loop+0x60/0xb0
[ 69.126843][ T5861] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.132744][ T5861] RIP: 0033:0x7ff35edd46a9
[ 69.137173][ T5861] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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
[ 69.156868][ T5861] RSP: 002b:00007ffeee8a4078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.165299][ T5861] RAX: ffffffffffffffda RBX: 00002000000025c0 RCX: 00007ff35edd46a9
[ 69.173267][ T5861] RDX: 00002000000000c0 RSI: 00002000000025c0 RDI: 0000000000000000
[ 69.181260][ T5861] RBP: 0000200000000280 R08: 0000200000000280 R09: 00007ffeee8a4258
[ 69.189230][ T5861] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff35ee1d017
[ 69.197218][ T5861] R13: 00007ffeee8a4248 R14: 0000000000000001 R15: 0000000000000001
[ 69.205192][ T5861]
[ 69.208388][ T5861] Kernel Offset: disabled
[ 69.212712][ T5861] Rebooting in 86400 seconds..