./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor159348380
<...>
Warning: Permanently added '10.128.1.3' (ED25519) to the list of known hosts.
execve("./syz-executor159348380", ["./syz-executor159348380"], 0x7fff418d4dd0 /* 10 vars */) = 0
brk(NULL) = 0x5555667e8000
brk(0x5555667e8d00) = 0x5555667e8d00
arch_prctl(ARCH_SET_FS, 0x5555667e8380) = 0
set_tid_address(0x5555667e8650) = 5834
set_robust_list(0x5555667e8660, 24) = 0
rseq(0x5555667e8ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor159348380", 4096) = 27
getrandom("\x06\x65\xd7\x9d\x6e\x5e\x0c\x58", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555667e8d00
brk(0x555566809d00) = 0x555566809d00
brk(0x55556680a000) = 0x55556680a000
mprotect(0x7f2e8cfa0000, 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
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) = 0x7f2e84a00000
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"..., 1048576) = 1048576
munmap(0x7f2e84a00000, 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", "udf", 0, "noadinicb,nostrict,mode=00000000000000000000004,uid=forget,noadinicb,umask=00000000000000040002000,l"...) = 0
openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
chdir("./file0") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", S_ISGID|010) = 0
open("./file1", O_RDONLY|O_CREAT|O_NONBLOCK|O_SYNC|O_NOFOLLOW|O_NOATIME|O_PATH|__O_TMPFILE|FASYNC, 0556) = 4
unlinkat(AT_FDCWD, "./file1", 0) = 0
[ 64.432708][ T5834] loop0: detected capacity change from 0 to 2048
[ 64.463729][ T5834] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[ 64.504548][ T5834] ------------[ cut here ]------------
[ 64.510276][ T5834] WARNING: CPU: 1 PID: 5834 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 64.518302][ T5834] Modules linked in:
[ 64.522369][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor159 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0
[ 64.533202][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[ 64.543350][ T5834] RIP: 0010:drop_nlink+0xc4/0x110
[ 64.548411][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 f7 d7 e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 ad 44 7e ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 64.568169][ T5834] RSP: 0018:ffffc90003f97610 EFLAGS: 00010293
[ 64.574336][ T5834] RAX: ffffffff82170783 RBX: 1ffff1100ef1e1cc RCX: ffff888030079e00
[ 64.582404][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 64.590430][ T5834] RBP: 0000000000000000 R08: ffffffff82170703 R09: 1ffffffff20391a6
[ 64.598416][ T5834] R10: dffffc0000000000 R11: fffffbfff20391a7 R12: ffff8880778f0e60
[ 64.606499][ T5834] R13: ffffc90003f977d0 R14: ffff8880778f0e18 R15: dffffc0000000000
[ 64.614520][ T5834] FS: 00005555667e8380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[ 64.623547][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 64.630218][ T5834] CR2: 000055e0b699c7e8 CR3: 00000000780da000 CR4: 00000000003526f0
[ 64.638217][ T5834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 64.646349][ T5834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 64.654394][ T5834] Call Trace:
[ 64.657670][ T5834]
[ 64.660763][ T5834] ? __warn+0x168/0x4e0
[ 64.664962][ T5834] ? drop_nlink+0xc4/0x110
[ 64.669416][ T5834] ? report_bug+0x2b3/0x500
[ 64.674017][ T5834] ? drop_nlink+0xc4/0x110
[ 64.678483][ T5834] ? handle_bug+0x60/0x90
[ 64.682915][ T5834] ? exc_invalid_op+0x1a/0x50
[ 64.687632][ T5834] ? asm_exc_invalid_op+0x1a/0x20
[ 64.692788][ T5834] ? drop_nlink+0x43/0x110
[ 64.697243][ T5834] ? drop_nlink+0xc3/0x110
[ 64.701746][ T5834] ? drop_nlink+0xc4/0x110
[ 64.706199][ T5834] udf_rename+0x969/0xe10
[ 64.710713][ T5834] ? __pfx_udf_rename+0x10/0x10
[ 64.715613][ T5834] ? mark_lock+0x2ae/0x360
[ 64.720177][ T5834] ? __lock_acquire+0x1397/0x2100
[ 64.725252][ T5834] ? __pfx___might_resched+0x10/0x10
[ 64.730733][ T5834] ? down_write_nested+0x195/0x220
[ 64.735890][ T5834] ? __pfx_down_write_nested+0x10/0x10
[ 64.741434][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0
[ 64.746664][ T5834] ? __pfx_udf_rename+0x10/0x10
[ 64.751611][ T5834] vfs_rename+0xbdb/0xf00
[ 64.755997][ T5834] ? __pfx_vfs_rename+0x10/0x10
[ 64.761043][ T5834] ? bpf_lsm_path_rename+0x9/0x10
[ 64.766117][ T5834] do_renameat2+0xd94/0x13f0
[ 64.770879][ T5834] ? __pfx_do_renameat2+0x10/0x10
[ 64.775956][ T5834] ? strncpy_from_user+0x13a/0x260
[ 64.781203][ T5834] ? getname_flags+0x1e3/0x540
[ 64.785998][ T5834] __x64_sys_rename+0x82/0x90
[ 64.790771][ T5834] do_syscall_64+0xf3/0x230
[ 64.795317][ T5834] ? clear_bhb_loop+0x35/0x90
[ 64.800103][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 64.806053][ T5834] RIP: 0033:0x7f2e8cf2c839
[ 64.810569][ T5834] 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
[ 64.830323][ T5834] RSP: 002b:00007ffd0f472718 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
[ 64.838756][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f2e8cf2c839
[ 64.846862][ T5834] RDX: 00007f2e8cf2c839 RSI: 0000000020000f00 RDI: 00000000200001c0
[ 64.854964][ T5834] RBP: 00007f2e8cfa0610 R08: 0000000000000000 R09: 0000000000000000
[ 64.863027][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 64.871094][ T5834] R13: 00007ffd0f4728e8 R14: 0000000000000001 R15: 0000000000000001
[ 64.879083][ T5834]
[ 64.882196][ T5834] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 64.889500][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor159 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0
[ 64.900260][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[ 64.910322][ T5834] Call Trace:
[ 64.913591][ T5834]
[ 64.916512][ T5834] dump_stack_lvl+0x241/0x360
[ 64.921207][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10
[ 64.926439][ T5834] ? __pfx__printk+0x10/0x10
[ 64.931027][ T5834] ? _printk+0xd5/0x120
[ 64.935199][ T5834] ? __init_begin+0x41000/0x41000
[ 64.940259][ T5834] ? vscnprintf+0x5d/0x90
[ 64.944619][ T5834] panic+0x349/0x880
[ 64.948636][ T5834] ? __warn+0x177/0x4e0
[ 64.952799][ T5834] ? __pfx_panic+0x10/0x10
[ 64.957210][ T5834] ? show_trace_log_lvl+0x3b2/0x410
[ 64.962506][ T5834] __warn+0x34b/0x4e0
[ 64.966608][ T5834] ? drop_nlink+0xc4/0x110
[ 64.971042][ T5834] report_bug+0x2b3/0x500
[ 64.975369][ T5834] ? drop_nlink+0xc4/0x110
[ 64.979783][ T5834] handle_bug+0x60/0x90
[ 64.983932][ T5834] exc_invalid_op+0x1a/0x50
[ 64.988495][ T5834] asm_exc_invalid_op+0x1a/0x20
[ 64.993360][ T5834] RIP: 0010:drop_nlink+0xc4/0x110
[ 64.998402][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 f7 d7 e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 ad 44 7e ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 65.018011][ T5834] RSP: 0018:ffffc90003f97610 EFLAGS: 00010293
[ 65.024086][ T5834] RAX: ffffffff82170783 RBX: 1ffff1100ef1e1cc RCX: ffff888030079e00
[ 65.032050][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 65.040028][ T5834] RBP: 0000000000000000 R08: ffffffff82170703 R09: 1ffffffff20391a6
[ 65.048000][ T5834] R10: dffffc0000000000 R11: fffffbfff20391a7 R12: ffff8880778f0e60
[ 65.055968][ T5834] R13: ffffc90003f977d0 R14: ffff8880778f0e18 R15: dffffc0000000000
[ 65.063986][ T5834] ? drop_nlink+0x43/0x110
[ 65.068453][ T5834] ? drop_nlink+0xc3/0x110
[ 65.072904][ T5834] udf_rename+0x969/0xe10
[ 65.077265][ T5834] ? __pfx_udf_rename+0x10/0x10
[ 65.082153][ T5834] ? mark_lock+0x2ae/0x360
[ 65.086588][ T5834] ? __lock_acquire+0x1397/0x2100
[ 65.091639][ T5834] ? __pfx___might_resched+0x10/0x10
[ 65.096941][ T5834] ? down_write_nested+0x195/0x220
[ 65.102050][ T5834] ? __pfx_down_write_nested+0x10/0x10
[ 65.107508][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0
[ 65.112707][ T5834] ? __pfx_udf_rename+0x10/0x10
[ 65.117552][ T5834] vfs_rename+0xbdb/0xf00
[ 65.121930][ T5834] ? __pfx_vfs_rename+0x10/0x10
[ 65.126846][ T5834] ? bpf_lsm_path_rename+0x9/0x10
[ 65.131914][ T5834] do_renameat2+0xd94/0x13f0
[ 65.136546][ T5834] ? __pfx_do_renameat2+0x10/0x10
[ 65.141592][ T5834] ? strncpy_from_user+0x13a/0x260
[ 65.146764][ T5834] ? getname_flags+0x1e3/0x540
[ 65.151571][ T5834] __x64_sys_rename+0x82/0x90
[ 65.156267][ T5834] do_syscall_64+0xf3/0x230
[ 65.160790][ T5834] ? clear_bhb_loop+0x35/0x90
[ 65.165490][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 65.171421][ T5834] RIP: 0033:0x7f2e8cf2c839
[ 65.175843][ T5834] 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
[ 65.195473][ T5834] RSP: 002b:00007ffd0f472718 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
[ 65.203927][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f2e8cf2c839
[ 65.211929][ T5834] RDX: 00007f2e8cf2c839 RSI: 0000000020000f00 RDI: 00000000200001c0
[ 65.219937][ T5834] RBP: 00007f2e8cfa0610 R08: 0000000000000000 R09: 0000000000000000
[ 65.227943][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 65.235944][ T5834] R13: 00007ffd0f4728e8 R14: 0000000000000001 R15: 0000000000000001
[ 65.243959][ T5834]
[ 65.247285][ T5834] Kernel Offset: disabled
[ 65.251703][ T5834] Rebooting in 86400 seconds..