./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor543395668
<...>
Warning: Permanently added '10.128.0.37' (ED25519) to the list of known hosts.
execve("./syz-executor543395668", ["./syz-executor543395668"], 0x7ffe4ca7e080 /* 10 vars */) = 0
brk(NULL) = 0x55556fa21000
brk(0x55556fa21d00) = 0x55556fa21d00
arch_prctl(ARCH_SET_FS, 0x55556fa21380) = 0
set_tid_address(0x55556fa21650) = 5834
set_robust_list(0x55556fa21660, 24) = 0
rseq(0x55556fa21ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor543395668", 4096) = 27
getrandom("\xe6\xda\x86\x8e\x12\xc1\x3b\x4d", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556fa21d00
brk(0x55556fa42d00) = 0x55556fa42d00
brk(0x55556fa43000) = 0x55556fa43000
mprotect(0x7fb663c98000, 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) = 0x7fb65b600000
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"..., 524288) = 524288
munmap(0x7fb65b600000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0
mount("/dev/loop0", "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", "hfsplus", 0, "nls=iso8859-4,nobarrier,gid=0x000000000000ee01,uid=0x0000000000000000") = 0
openat(AT_FDCWD, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", O_RDONLY|O_DIRECTORY) = 3
chdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
creat("./file1", 0104) = 4
symlink("./file0/file0/..", "./bus") = 0
rename("./bus", "./file1") = -1 ENOENT (No such file or directory)
[ 63.580668][ T5834] loop0: detected capacity change from 0 to 1024
[ 63.633201][ T5834] ------------[ cut here ]------------
[ 63.638941][ T5834] WARNING: CPU: 1 PID: 5834 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 63.647629][ T5834] Modules linked in:
[ 63.651571][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor543 Not tainted 6.12.0-syzkaller-01782-gbf9aa14fc523 #0
[ 63.662735][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[ 63.673218][ T5834] RIP: 0010:drop_nlink+0xc4/0x110
[ 63.678499][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 07 df e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 6d f4 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
[ 63.698684][ T5834] RSP: 0018:ffffc90003cf7bb0 EFLAGS: 00010293
[ 63.704946][ T5834] RAX: ffffffff8215f523 RBX: 1ffff1100478f54f RCX: ffff888023c90000
[ 63.713052][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 63.721408][ T5834] RBP: 0000000000000000 R08: ffffffff8215f4a3 R09: 1ffff9200079eed8
[ 63.729535][ T5834] R10: dffffc0000000000 R11: fffff5200079eed9 R12: ffff888023c7aa78
[ 63.737597][ T5834] R13: ffff88807d38ef08 R14: ffff888023c7aa30 R15: dffffc0000000000
[ 63.745629][ T5834] FS: 000055556fa21380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[ 63.754643][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 63.761351][ T5834] CR2: 000055a3488eb068 CR3: 000000005bc82000 CR4: 00000000003526f0
[ 63.769385][ T5834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 63.777482][ T5834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 63.785523][ T5834] Call Trace:
[ 63.788909][ T5834]
[ 63.791837][ T5834] ? __warn+0x168/0x4e0
[ 63.796103][ T5834] ? drop_nlink+0xc4/0x110
[ 63.800650][ T5834] ? report_bug+0x2b3/0x500
[ 63.805263][ T5834] ? drop_nlink+0xc4/0x110
[ 63.809710][ T5834] ? handle_bug+0x60/0x90
[ 63.814255][ T5834] ? exc_invalid_op+0x1a/0x50
[ 63.818971][ T5834] ? asm_exc_invalid_op+0x1a/0x20
[ 63.824117][ T5834] ? drop_nlink+0x43/0x110
[ 63.828572][ T5834] ? drop_nlink+0xc3/0x110
[ 63.833019][ T5834] ? drop_nlink+0xc4/0x110
[ 63.837531][ T5834] hfsplus_unlink+0x3fe/0x790
[ 63.842367][ T5834] ? __pfx_smack_inode_unlink+0x10/0x10
[ 63.848144][ T5834] ? __pfx_hfsplus_unlink+0x10/0x10
[ 63.853388][ T5834] ? down_write+0x18c/0x220
[ 63.858271][ T5834] ? bpf_lsm_inode_unlink+0x9/0x10
[ 63.863422][ T5834] ? security_inode_unlink+0xd9/0x340
[ 63.868867][ T5834] vfs_unlink+0x365/0x650
[ 63.873307][ T5834] do_unlinkat+0x4ae/0x830
[ 63.877909][ T5834] ? __pfx_do_unlinkat+0x10/0x10
[ 63.882877][ T5834] ? __might_fault+0xaa/0x120
[ 63.887625][ T5834] ? __might_fault+0xc6/0x120
[ 63.892346][ T5834] ? strncpy_from_user+0x13a/0x260
[ 63.897670][ T5834] ? getname_flags+0x1e3/0x540
[ 63.902472][ T5834] __x64_sys_unlink+0x47/0x50
[ 63.907212][ T5834] do_syscall_64+0xf3/0x230
[ 63.911742][ T5834] ? clear_bhb_loop+0x35/0x90
[ 63.916530][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.922617][ T5834] RIP: 0033:0x7fb663c249b9
[ 63.927260][ 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
[ 63.947180][ T5834] RSP: 002b:00007ffe7ab8e478 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[ 63.955690][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fb663c249b9
[ 63.963766][ T5834] RDX: ffffffffffffffb8 RSI: 00007fb663c249b9 RDI: 00000000200000c0
[ 63.972292][ T5834] RBP: 00007fb663c98610 R08: 0000000000000000 R09: 0000000000000000
[ 63.980412][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 63.988469][ T5834] R13: 00007ffe7ab8e648 R14: 0000000000000001 R15: 0000000000000001
[ 63.996560][ T5834]
[ 63.999605][ T5834] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 64.006917][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor543 Not tainted 6.12.0-syzkaller-01782-gbf9aa14fc523 #0
[ 64.017680][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[ 64.027817][ T5834] Call Trace:
[ 64.031118][ T5834]
[ 64.034126][ T5834] dump_stack_lvl+0x241/0x360
[ 64.038795][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10
[ 64.043993][ T5834] ? __pfx__printk+0x10/0x10
[ 64.048631][ T5834] ? _printk+0xd5/0x120
[ 64.052815][ T5834] ? __init_begin+0x41000/0x41000
[ 64.057842][ T5834] ? vscnprintf+0x5d/0x90
[ 64.062172][ T5834] panic+0x349/0x880
[ 64.066106][ T5834] ? __warn+0x177/0x4e0
[ 64.070261][ T5834] ? __pfx_panic+0x10/0x10
[ 64.074686][ T5834] ? show_trace_log_lvl+0x3b2/0x410
[ 64.079914][ T5834] __warn+0x34b/0x4e0
[ 64.083899][ T5834] ? drop_nlink+0xc4/0x110
[ 64.088400][ T5834] report_bug+0x2b3/0x500
[ 64.092814][ T5834] ? drop_nlink+0xc4/0x110
[ 64.097342][ T5834] handle_bug+0x60/0x90
[ 64.101516][ T5834] exc_invalid_op+0x1a/0x50
[ 64.106032][ T5834] asm_exc_invalid_op+0x1a/0x20
[ 64.110890][ T5834] RIP: 0010:drop_nlink+0xc4/0x110
[ 64.115917][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 07 df e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 6d f4 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
[ 64.135910][ T5834] RSP: 0018:ffffc90003cf7bb0 EFLAGS: 00010293
[ 64.142019][ T5834] RAX: ffffffff8215f523 RBX: 1ffff1100478f54f RCX: ffff888023c90000
[ 64.150106][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 64.158081][ T5834] RBP: 0000000000000000 R08: ffffffff8215f4a3 R09: 1ffff9200079eed8
[ 64.166239][ T5834] R10: dffffc0000000000 R11: fffff5200079eed9 R12: ffff888023c7aa78
[ 64.174223][ T5834] R13: ffff88807d38ef08 R14: ffff888023c7aa30 R15: dffffc0000000000
[ 64.182196][ T5834] ? drop_nlink+0x43/0x110
[ 64.186609][ T5834] ? drop_nlink+0xc3/0x110
[ 64.191034][ T5834] hfsplus_unlink+0x3fe/0x790
[ 64.195707][ T5834] ? __pfx_smack_inode_unlink+0x10/0x10
[ 64.201618][ T5834] ? __pfx_hfsplus_unlink+0x10/0x10
[ 64.206907][ T5834] ? down_write+0x18c/0x220
[ 64.211420][ T5834] ? bpf_lsm_inode_unlink+0x9/0x10
[ 64.216614][ T5834] ? security_inode_unlink+0xd9/0x340
[ 64.221984][ T5834] vfs_unlink+0x365/0x650
[ 64.226321][ T5834] do_unlinkat+0x4ae/0x830
[ 64.230829][ T5834] ? __pfx_do_unlinkat+0x10/0x10
[ 64.235786][ T5834] ? __might_fault+0xaa/0x120
[ 64.240463][ T5834] ? __might_fault+0xc6/0x120
[ 64.245144][ T5834] ? strncpy_from_user+0x13a/0x260
[ 64.250255][ T5834] ? getname_flags+0x1e3/0x540
[ 64.255021][ T5834] __x64_sys_unlink+0x47/0x50
[ 64.259695][ T5834] do_syscall_64+0xf3/0x230
[ 64.264216][ T5834] ? clear_bhb_loop+0x35/0x90
[ 64.268921][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 64.274901][ T5834] RIP: 0033:0x7fb663c249b9
[ 64.279317][ 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
[ 64.298940][ T5834] RSP: 002b:00007ffe7ab8e478 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[ 64.307362][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fb663c249b9
[ 64.315377][ T5834] RDX: ffffffffffffffb8 RSI: 00007fb663c249b9 RDI: 00000000200000c0
[ 64.323432][ T5834] RBP: 00007fb663c98610 R08: 0000000000000000 R09: 0000000000000000
[ 64.331405][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 64.339374][ T5834] R13: 00007ffe7ab8e648 R14: 0000000000000001 R15: 0000000000000001
[ 64.347354][ T5834]
[ 64.350676][ T5834] Kernel Offset: disabled
[ 64.355036][ T5834] Rebooting in 86400 seconds..