./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3429781244 <...> Warning: Permanently added '10.128.1.29' (ED25519) to the list of known hosts. execve("./syz-executor3429781244", ["./syz-executor3429781244"], 0x7ffe5c17a1b0 /* 10 vars */) = 0 brk(NULL) = 0x55556dfec000 brk(0x55556dfecd00) = 0x55556dfecd00 arch_prctl(ARCH_SET_FS, 0x55556dfec380) = 0 set_tid_address(0x55556dfec650) = 5833 set_robust_list(0x55556dfec660, 24) = 0 rseq(0x55556dfecca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3429781244", 4096) = 28 getrandom("\x51\xcd\x7d\xf0\x36\x1e\xd9\x08", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556dfecd00 brk(0x55556e00dd00) = 0x55556e00dd00 brk(0x55556e00e000) = 0x55556e00e000 mprotect(0x7f25e85fb000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5834 attached [pid 5834] set_robust_list(0x55556dfec660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55556dfec650) = 5834 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] setpgid(0, 0) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1000", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] write(1, "executing program\n", 18executing program ) = 18 [pid 5834] memfd_create("syzkaller", 0) = 3 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f25e0000000 [pid 5834] 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 [pid 5834] munmap(0x7f25e0000000, 138412032) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5834] close(3) = 0 [pid 5834] close(4) = 0 [pid 5834] mkdir("./file0", 0777) = 0 [ 77.449531][ T5834] loop0: detected capacity change from 0 to 2048 [pid 5834] mount("/dev/loop0", "./file0", "udf", 0, "noadinicb,nostrict,mode=00000000000000000000004,uid=forget,noadinicb,umask=00000000000000040002000,l"...) = 0 [pid 5834] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5834] chdir("./file0") = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5834] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_DIRECT|O_LARGEFILE, 000) = 4 [ 77.493977][ T5834] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5834] unlinkat(AT_FDCWD, "./file1", 0) = 0 [ 77.539512][ T29] audit: type=1800 audit(1732349831.599:2): pid=5834 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor342" name="file1" dev="loop0" ino=1415 res=0 errno=0 [ 77.566255][ T5834] ------------[ cut here ]------------ [ 77.571928][ T5834] WARNING: CPU: 1 PID: 5834 at fs/inode.c:407 drop_nlink+0xc4/0x110 [ 77.580047][ T5834] Modules linked in: [ 77.584007][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor342 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 [ 77.594868][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 77.605084][ T5834] RIP: 0010:drop_nlink+0xc4/0x110 [ 77.610250][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 27 d8 e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 9d 40 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 [ 77.630051][ T5834] RSP: 0018:ffffc90003ab7610 EFLAGS: 00010293 [ 77.636238][ T5834] RAX: ffffffff82170c43 RBX: 1ffff1100e413100 RCX: ffff88807e470000 [ 77.644256][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 77.652363][ T5834] RBP: 0000000000000000 R08: ffffffff82170bc3 R09: 1ffffffff2038026 [ 77.660414][ T5834] R10: dffffc0000000000 R11: fffffbfff2038027 R12: ffff888072098800 [ 77.668518][ T5834] R13: ffffc90003ab77d0 R14: ffff8880720987b8 R15: dffffc0000000000 [ 77.676598][ T5834] FS: 000055556dfec380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 77.685645][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.692281][ T5834] CR2: 0000564225f57310 CR3: 00000000770da000 CR4: 00000000003526f0 [ 77.700329][ T5834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.708397][ T5834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.716468][ T5834] Call Trace: [ 77.719872][ T5834] [ 77.722815][ T5834] ? __warn+0x168/0x4e0 [ 77.727077][ T5834] ? drop_nlink+0xc4/0x110 [ 77.731552][ T5834] ? report_bug+0x2b3/0x500 [ 77.736189][ T5834] ? drop_nlink+0xc4/0x110 [ 77.740661][ T5834] ? handle_bug+0x60/0x90 [ 77.745027][ T5834] ? exc_invalid_op+0x1a/0x50 [ 77.749821][ T5834] ? asm_exc_invalid_op+0x1a/0x20 [ 77.754904][ T5834] ? drop_nlink+0x43/0x110 [ 77.759453][ T5834] ? drop_nlink+0xc3/0x110 [ 77.763938][ T5834] ? drop_nlink+0xc4/0x110 [ 77.768510][ T5834] udf_rename+0x969/0xe10 [ 77.772904][ T5834] ? __pfx_udf_rename+0x10/0x10 [ 77.777852][ T5834] ? mark_lock+0x2ae/0x360 [ 77.782318][ T5834] ? __lock_acquire+0x1397/0x2100 [ 77.787501][ T5834] ? __pfx___might_resched+0x10/0x10 [ 77.792872][ T5834] ? down_write_nested+0x195/0x220 [ 77.798121][ T5834] ? __pfx_down_write_nested+0x10/0x10 [ 77.803640][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0 [ 77.808988][ T5834] ? __asan_memcpy+0x40/0x70 [ 77.813635][ T5834] ? __pfx_udf_rename+0x10/0x10 [ 77.818569][ T5834] vfs_rename+0xbdb/0xf00 [ 77.822955][ T5834] ? __pfx_vfs_rename+0x10/0x10 [ 77.827924][ T5834] ? bpf_lsm_path_rename+0x9/0x10 [ 77.832991][ T5834] do_renameat2+0xd94/0x13f0 [ 77.837692][ T5834] ? __pfx_do_renameat2+0x10/0x10 [ 77.842776][ T5834] ? strncpy_from_user+0x13a/0x260 [ 77.848021][ T5834] ? getname_flags+0x1e3/0x540 [ 77.852832][ T5834] __x64_sys_rename+0x82/0x90 [ 77.857610][ T5834] do_syscall_64+0xf3/0x230 [ 77.862162][ T5834] ? clear_bhb_loop+0x35/0x90 [ 77.867042][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.873016][ T5834] RIP: 0033:0x7f25e8587ad9 [ 77.877606][ T5834] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 77.897355][ T5834] RSP: 002b:00007ffdbb95b938 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 77.905882][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f25e8587ad9 [ 77.913889][ T5834] RDX: 00007f25e8587ad9 RSI: 0000000020000f00 RDI: 00000000200000c0 [ 77.921995][ T5834] RBP: 00007f25e85fb5f0 R08: 000055556dfed4c0 R09: 000055556dfed4c0 [ 77.930103][ T5834] R10: 000055556dfed4c0 R11: 0000000000000246 R12: 00007ffdbb95b960 [ 77.938217][ T5834] R13: 00007ffdbb95bb88 R14: 431bde82d7b634db R15: 00007f25e85d003b [ 77.946272][ T5834] [ 77.949325][ T5834] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 77.956610][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor342 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 [ 77.967375][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 77.977972][ T5834] Call Trace: [ 77.981269][ T5834] [ 77.984208][ T5834] dump_stack_lvl+0x241/0x360 [ 77.988902][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10 [ 77.994113][ T5834] ? __pfx__printk+0x10/0x10 [ 77.998709][ T5834] ? _printk+0xd5/0x120 [ 78.002892][ T5834] ? __init_begin+0x41000/0x41000 [ 78.008003][ T5834] ? vscnprintf+0x5d/0x90 [ 78.012350][ T5834] panic+0x349/0x880 [ 78.016255][ T5834] ? __warn+0x177/0x4e0 [ 78.020414][ T5834] ? __pfx_panic+0x10/0x10 [ 78.024833][ T5834] ? show_trace_log_lvl+0x3b2/0x410 [ 78.030135][ T5834] __warn+0x34b/0x4e0 [ 78.034125][ T5834] ? drop_nlink+0xc4/0x110 [ 78.038563][ T5834] report_bug+0x2b3/0x500 [ 78.042895][ T5834] ? drop_nlink+0xc4/0x110 [ 78.047322][ T5834] handle_bug+0x60/0x90 [ 78.051483][ T5834] exc_invalid_op+0x1a/0x50 [ 78.056007][ T5834] asm_exc_invalid_op+0x1a/0x20 [ 78.060967][ T5834] RIP: 0010:drop_nlink+0xc4/0x110 [ 78.066103][ T5834] Code: bb 70 07 00 00 be 08 00 00 00 e8 27 d8 e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 9d 40 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 [ 78.085719][ T5834] RSP: 0018:ffffc90003ab7610 EFLAGS: 00010293 [ 78.091802][ T5834] RAX: ffffffff82170c43 RBX: 1ffff1100e413100 RCX: ffff88807e470000 [ 78.099781][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 78.107762][ T5834] RBP: 0000000000000000 R08: ffffffff82170bc3 R09: 1ffffffff2038026 [ 78.115833][ T5834] R10: dffffc0000000000 R11: fffffbfff2038027 R12: ffff888072098800 [ 78.123902][ T5834] R13: ffffc90003ab77d0 R14: ffff8880720987b8 R15: dffffc0000000000 [ 78.131894][ T5834] ? drop_nlink+0x43/0x110 [ 78.136333][ T5834] ? drop_nlink+0xc3/0x110 [ 78.140774][ T5834] udf_rename+0x969/0xe10 [ 78.145126][ T5834] ? __pfx_udf_rename+0x10/0x10 [ 78.149996][ T5834] ? mark_lock+0x2ae/0x360 [ 78.154428][ T5834] ? __lock_acquire+0x1397/0x2100 [ 78.159499][ T5834] ? __pfx___might_resched+0x10/0x10 [ 78.164853][ T5834] ? down_write_nested+0x195/0x220 [ 78.170001][ T5834] ? __pfx_down_write_nested+0x10/0x10 [ 78.175477][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0 [ 78.180695][ T5834] ? __asan_memcpy+0x40/0x70 [ 78.185300][ T5834] ? __pfx_udf_rename+0x10/0x10 [ 78.190163][ T5834] vfs_rename+0xbdb/0xf00 [ 78.194522][ T5834] ? __pfx_vfs_rename+0x10/0x10 [ 78.199392][ T5834] ? bpf_lsm_path_rename+0x9/0x10 [ 78.204430][ T5834] do_renameat2+0xd94/0x13f0 [ 78.209057][ T5834] ? __pfx_do_renameat2+0x10/0x10 [ 78.214119][ T5834] ? strncpy_from_user+0x13a/0x260 [ 78.219253][ T5834] ? getname_flags+0x1e3/0x540 [ 78.224036][ T5834] __x64_sys_rename+0x82/0x90 [ 78.228820][ T5834] do_syscall_64+0xf3/0x230 [ 78.233339][ T5834] ? clear_bhb_loop+0x35/0x90 [ 78.238035][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.243964][ T5834] RIP: 0033:0x7f25e8587ad9 [ 78.248389][ T5834] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 78.268023][ T5834] RSP: 002b:00007ffdbb95b938 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 78.276455][ T5834] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f25e8587ad9 [ 78.284436][ T5834] RDX: 00007f25e8587ad9 RSI: 0000000020000f00 RDI: 00000000200000c0 [ 78.292504][ T5834] RBP: 00007f25e85fb5f0 R08: 000055556dfed4c0 R09: 000055556dfed4c0 [ 78.300503][ T5834] R10: 000055556dfed4c0 R11: 0000000000000246 R12: 00007ffdbb95b960 [ 78.308482][ T5834] R13: 00007ffdbb95bb88 R14: 431bde82d7b634db R15: 00007f25e85d003b [ 78.316475][ T5834] [ 78.319861][ T5834] Kernel Offset: disabled [ 78.324228][ T5834] Rebooting in 86400 seconds..