./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor642634904
<...>
Warning: Permanently added '10.128.0.25' (ED25519) to the list of known hosts.
execve("./syz-executor642634904", ["./syz-executor642634904"], 0x7ffe0fa74c60 /* 10 vars */) = 0
brk(NULL) = 0x555594f15000
brk(0x555594f15d00) = 0x555594f15d00
arch_prctl(ARCH_SET_FS, 0x555594f15380) = 0
set_tid_address(0x555594f15650) = 5822
set_robust_list(0x555594f15660, 24) = 0
rseq(0x555594f15ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor642634904", 4096) = 27
getrandom("\xfe\xc4\x22\xeb\x80\x5a\xfd\x59", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555594f15d00
brk(0x555594f36d00) = 0x555594f36d00
brk(0x555594f37000) = 0x555594f37000
mprotect(0x7f3d95264000, 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) = 0x7f3d8cc00000
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(0x7f3d8cc00000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file1", 0777) = 0
mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "") = 0
openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
chdir("./file1") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 102.397797][ T5822] loop0: detected capacity change from 0 to 32768
[ 102.443790][ T5822] ------------[ cut here ]------------
[ 102.449338][ T5822] WARNING: CPU: 1 PID: 5822 at fs/inode.c:417 drop_nlink+0xc5/0x110
[ 102.457752][ T5822] Modules linked in:
[ 102.462172][ T5822] CPU: 1 UID: 0 PID: 5822 Comm: syz-executor642 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT(full)
[ 102.473028][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
[ 102.483819][ T5822] RIP: 0010:drop_nlink+0xc5/0x110
[ 102.488893][ T5822] Code: 70 07 00 00 be 08 00 00 00 e8 b7 84 e8 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 0c b3 88 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
[ 102.510870][ T5822] RSP: 0018:ffffc9000418f8b0 EFLAGS: 00010293
[ 102.517551][ T5822] RAX: ffffffff82371c54 RBX: ffff888076868430 RCX: ffff888035380000
[ 102.526796][ T5822] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 102.535249][ T5822] RBP: 0000000000000000 R08: ffffea0001ed3337 R09: 1ffffd40003da666
[ 102.543423][ T5822] R10: dffffc0000000000 R11: fffff940003da667 R12: 1ffff1100ed0d08f
[ 102.552182][ T5822] R13: 1ffff92000831f28 R14: ffff888076868478 R15: dffffc0000000000
[ 102.560492][ T5822] FS: 0000555594f15380(0000) GS:ffff8881261fd000(0000) knlGS:0000000000000000
[ 102.569729][ T5822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 102.576540][ T5822] CR2: 000000000066c7e0 CR3: 000000007a760000 CR4: 00000000003526f0
[ 102.584783][ T5822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 102.593157][ T5822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 102.601302][ T5822] Call Trace:
[ 102.604697][ T5822]
[ 102.607631][ T5822] jfs_rename+0xbb3/0x1610
[ 102.612209][ T5822] ? __pfx_jfs_rename+0x10/0x10
[ 102.617129][ T5822] ? __lock_acquire+0xaac/0xd20
[ 102.622341][ T5822] ? do_raw_spin_lock+0x121/0x290
[ 102.627424][ T5822] ? do_raw_spin_unlock+0x122/0x240
[ 102.632700][ T5822] ? __pfx_jfs_rename+0x10/0x10
[ 102.637685][ T5822] vfs_rename+0xb99/0xec0
[ 102.642241][ T5822] ? __pfx_vfs_rename+0x10/0x10
[ 102.647153][ T5822] ? d_alloc+0x144/0x190
[ 102.651471][ T5822] ? bpf_lsm_path_rename+0x9/0x20
[ 102.656527][ T5822] ? security_path_rename+0x17d/0x490
[ 102.662010][ T5822] do_renameat2+0x878/0xc50
[ 102.666750][ T5822] ? __pfx_do_renameat2+0x10/0x10
[ 102.672083][ T5822] ? getname_flags+0x1e5/0x540
[ 102.676902][ T5822] __x64_sys_rename+0x82/0x90
[ 102.681691][ T5822] do_syscall_64+0xf6/0x210
[ 102.686254][ T5822] ? clear_bhb_loop+0x45/0xa0
[ 102.691286][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 102.698013][ T5822] RIP: 0033:0x7f3d951eb639
[ 102.702515][ T5822] 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
[ 102.722271][ T5822] RSP: 002b:00007ffdcf75d998 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
[ 102.730879][ T5822] RAX: ffffffffffffffda RBX: 00007ffdcf75db78 RCX: 00007f3d951eb639
[ 102.738894][ T5822] RDX: 0000000000000000 RSI: 0000200000000780 RDI: 00002000000003c0
[ 102.747096][ T5822] RBP: 00007f3d95264610 R08: 0000000000006221 R09: 0000000000000000
[ 102.755471][ T5822] R10: 00007ffdcf75d860 R11: 0000000000000246 R12: 0000000000000001
[ 102.763581][ T5822] R13: 00007ffdcf75db68 R14: 0000000000000001 R15: 0000000000000001
[ 102.771841][ T5822]
[ 102.774871][ T5822] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 102.782160][ T5822] CPU: 1 UID: 0 PID: 5822 Comm: syz-executor642 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT(full)
[ 102.793374][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
[ 102.803460][ T5822] Call Trace:
[ 102.806766][ T5822]
[ 102.809802][ T5822] dump_stack_lvl+0x99/0x250
[ 102.814409][ T5822] ? __asan_memcpy+0x40/0x70
[ 102.819014][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10
[ 102.824225][ T5822] ? __pfx__printk+0x10/0x10
[ 102.828861][ T5822] panic+0x2db/0x790
[ 102.832783][ T5822] ? __pfx_panic+0x10/0x10
[ 102.837224][ T5822] __warn+0x31b/0x4b0
[ 102.841213][ T5822] ? drop_nlink+0xc5/0x110
[ 102.845664][ T5822] ? drop_nlink+0xc5/0x110
[ 102.850116][ T5822] report_bug+0x2be/0x4f0
[ 102.854524][ T5822] ? drop_nlink+0xc5/0x110
[ 102.858971][ T5822] ? drop_nlink+0xc5/0x110
[ 102.863400][ T5822] ? drop_nlink+0xc7/0x110
[ 102.867956][ T5822] handle_bug+0x84/0x160
[ 102.872365][ T5822] exc_invalid_op+0x1a/0x50
[ 102.876995][ T5822] asm_exc_invalid_op+0x1a/0x20
[ 102.882032][ T5822] RIP: 0010:drop_nlink+0xc5/0x110
[ 102.887081][ T5822] Code: 70 07 00 00 be 08 00 00 00 e8 b7 84 e8 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 0c b3 88 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
[ 102.906724][ T5822] RSP: 0018:ffffc9000418f8b0 EFLAGS: 00010293
[ 102.912820][ T5822] RAX: ffffffff82371c54 RBX: ffff888076868430 RCX: ffff888035380000
[ 102.920801][ T5822] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 102.928801][ T5822] RBP: 0000000000000000 R08: ffffea0001ed3337 R09: 1ffffd40003da666
[ 102.936805][ T5822] R10: dffffc0000000000 R11: fffff940003da667 R12: 1ffff1100ed0d08f
[ 102.944985][ T5822] R13: 1ffff92000831f28 R14: ffff888076868478 R15: dffffc0000000000
[ 102.953012][ T5822] ? drop_nlink+0xc4/0x110
[ 102.957465][ T5822] jfs_rename+0xbb3/0x1610
[ 102.961904][ T5822] ? __pfx_jfs_rename+0x10/0x10
[ 102.966877][ T5822] ? __lock_acquire+0xaac/0xd20
[ 102.972012][ T5822] ? do_raw_spin_lock+0x121/0x290
[ 102.977141][ T5822] ? do_raw_spin_unlock+0x122/0x240
[ 102.982366][ T5822] ? __pfx_jfs_rename+0x10/0x10
[ 102.987349][ T5822] vfs_rename+0xb99/0xec0
[ 102.991816][ T5822] ? __pfx_vfs_rename+0x10/0x10
[ 102.996698][ T5822] ? d_alloc+0x144/0x190
[ 103.000956][ T5822] ? bpf_lsm_path_rename+0x9/0x20
[ 103.005987][ T5822] ? security_path_rename+0x17d/0x490
[ 103.011376][ T5822] do_renameat2+0x878/0xc50
[ 103.015910][ T5822] ? __pfx_do_renameat2+0x10/0x10
[ 103.021048][ T5822] ? getname_flags+0x1e5/0x540
[ 103.025820][ T5822] __x64_sys_rename+0x82/0x90
[ 103.030515][ T5822] do_syscall_64+0xf6/0x210
[ 103.035053][ T5822] ? clear_bhb_loop+0x45/0xa0
[ 103.039851][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 103.045787][ T5822] RIP: 0033:0x7f3d951eb639
[ 103.050318][ T5822] 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
[ 103.070195][ T5822] RSP: 002b:00007ffdcf75d998 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
[ 103.078629][ T5822] RAX: ffffffffffffffda RBX: 00007ffdcf75db78 RCX: 00007f3d951eb639
[ 103.086722][ T5822] RDX: 0000000000000000 RSI: 0000200000000780 RDI: 00002000000003c0
[ 103.094733][ T5822] RBP: 00007f3d95264610 R08: 0000000000006221 R09: 0000000000000000
[ 103.102718][ T5822] R10: 00007ffdcf75d860 R11: 0000000000000246 R12: 0000000000000001
[ 103.110702][ T5822] R13: 00007ffdcf75db68 R14: 0000000000000001 R15: 0000000000000001
[ 103.118793][ T5822]
[ 103.122163][ T5822] Kernel Offset: disabled
[ 103.126580][ T5822] Rebooting in 86400 seconds..