./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor379398004 <...> Warning: Permanently added '10.128.1.16' (ED25519) to the list of known hosts. execve("./syz-executor379398004", ["./syz-executor379398004"], 0x7fffd86afe00 /* 10 vars */) = 0 brk(NULL) = 0x55556379c000 brk(0x55556379cd00) = 0x55556379cd00 arch_prctl(ARCH_SET_FS, 0x55556379c380) = 0 set_tid_address(0x55556379c650) = 5072 set_robust_list(0x55556379c660, 24) = 0 rseq(0x55556379cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor379398004", 4096) = 27 getrandom("\x16\xb9\x00\x51\xbe\x17\x81\xd5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556379cd00 brk(0x5555637bdd00) = 0x5555637bdd00 brk(0x5555637be000) = 0x5555637be000 mprotect(0x7f439b74f000, 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 5073 attached , child_tidptr=0x55556379c650) = 5073 [pid 5073] set_robust_list(0x55556379c660, 24) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] memfd_create("syzkaller", 0) = 3 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4393200000 [pid 5073] write(3, "\xb5\x84\x31\x7b\xb6\x84\x31\x7b\xb7\x84\x31\x7b\xb8\x84\x31\x7b\xb9\x84\x31\x7b\xba\x84\x31\x7b\xbb\x84\x31\x7b\xbc\x84\x31\x7b\xbd\x84\x31\x7b\xbe\x84\x31\x7b\xbf\x84\x31\x7b\xc0\x84\x31\x7b\xc1\x84\x31\x7b\xc2\x84\x31\x7b\xc3\x84\x31\x7b\xc4\x84\x31\x7b\xc5\x84\x31\x7b\xc6\x84\x31\x7b\xc7\x84\x31\x7b\xc8\x84\x31\x7b\xc9\x84\x31\x7b\xca\x84\x31\x7b\xcb\x84\x31\x7b\xcc\x84\x31\x7b\xcd\x84\x31\x7b"..., 65536) = 65536 [pid 5073] munmap(0x7f4393200000, 138412032) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5073] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5073] close(3) = 0 [pid 5073] close(4) = 0 [pid 5073] 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 [pid 5073] 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", "sysv", MS_NODEV|MS_NOATIME, "") = 0 [pid 5073] 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 [pid 5073] 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 [pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 71.965707][ T5073] loop0: detected capacity change from 0 to 128 [ 71.998086][ T5073] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 72.021175][ T5073] syz-executor379: attempt to access beyond end of device [ 72.021175][ T5073] loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 72.035525][ T5073] Buffer I/O error on dev loop0, logical block 3245768, async page read [ 72.044082][ T5073] syz-executor379: attempt to access beyond end of device [ 72.044082][ T5073] loop0: rw=0, sector=17666806, nr_sectors = 2 limit=128 [ 72.058145][ T5073] Buffer I/O error on dev loop0, logical block 8833403, async page read [ 72.066612][ T5073] syz-executor379: attempt to access beyond end of device [ 72.066612][ T5073] loop0: rw=0, sector=26539618, nr_sectors = 2 limit=128 [ 72.080773][ T5073] Buffer I/O error on dev loop0, logical block 13269809, async page read [ 72.089335][ T5073] syz-executor379: attempt to access beyond end of device [ 72.089335][ T5073] loop0: rw=0, sector=16147212, nr_sectors = 2 limit=128 [ 72.103449][ T5073] Buffer I/O error on dev loop0, logical block 8073606, async page read [ 72.112072][ T5073] syz-executor379: attempt to access beyond end of device [ 72.112072][ T5073] loop0: rw=0, sector=6491542, nr_sectors = 2 limit=128 [ 72.126081][ T5073] Buffer I/O error on dev loop0, logical block 3245771, async page read [ 72.134556][ T5073] syz-executor379: attempt to access beyond end of device [ 72.134556][ T5073] loop0: rw=0, sector=17668342, nr_sectors = 2 limit=128 [ 72.149273][ T5073] Buffer I/O error on dev loop0, logical block 8834171, async page read [ 72.157829][ T5073] syz-executor379: attempt to access beyond end of device [ 72.157829][ T5073] loop0: rw=0, sector=26932834, nr_sectors = 2 limit=128 [ 72.172330][ T5073] Buffer I/O error on dev loop0, logical block 13466417, async page read [ 72.180832][ T5073] syz-executor379: attempt to access beyond end of device [ 72.180832][ T5073] loop0: rw=0, sector=16147212, nr_sectors = 2 limit=128 [ 72.195089][ T5073] Buffer I/O error on dev loop0, logical block 8073606, async page read [ 72.204433][ T5073] syz-executor379: attempt to access beyond end of device [ 72.204433][ T5073] loop0: rw=0, sector=6491548, nr_sectors = 2 limit=128 [ 72.218448][ T5073] Buffer I/O error on dev loop0, logical block 3245774, async page read [ 72.226883][ T5073] syz-executor379: attempt to access beyond end of device [ 72.226883][ T5073] loop0: rw=0, sector=17669878, nr_sectors = 2 limit=128 [ 72.240944][ T5073] Buffer I/O error on dev loop0, logical block 8834939, async page read [pid 5073] mkdir("./bus", 0777 [pid 5072] kill(-5073, SIGKILL) = 0 [pid 5072] kill(5073, SIGKILL) = 0 [pid 5072] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(3, 0x55556379d6f0 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(3, 0x55556379d6f0 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [ 86.374588][ T44] cfg80211: failed to load regulatory.db [ 146.924682][ T5073] ------------[ cut here ]------------ [ 146.930192][ T5073] WARNING: CPU: 1 PID: 5073 at fs/inode.c:389 inc_nlink+0x129/0x140 [ 146.938337][ T5073] Modules linked in: [ 146.942354][ T5073] CPU: 1 PID: 5073 Comm: syz-executor379 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 146.952600][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 146.962777][ T5073] RIP: 0010:inc_nlink+0x129/0x140 [ 146.968017][ T5073] Code: ff e9 33 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 45 ff ff ff 4c 89 ef e8 d2 91 e7 ff e9 38 ff ff ff e8 d8 42 84 ff 90 <0f> 0b 90 e9 7b ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 [ 146.988081][ T5073] RSP: 0018:ffffc90004287d30 EFLAGS: 00010293 [ 146.994306][ T5073] RAX: ffffffff8210b278 RBX: 1ffff1100f336810 RCX: ffff88807c570000 [ 147.002418][ T5073] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 147.010429][ T5073] RBP: 0000000000000000 R08: ffffffff8210b1f2 R09: 1ffff1100298ef20 [ 147.018505][ T5073] R10: dffffc0000000000 R11: ffffffff82bd2dd0 R12: dffffc0000000000 [ 147.026592][ T5073] R13: ffff8880799b4080 R14: ffff8880799b4038 R15: 0000000000000000 [ 147.034667][ T5073] FS: 000055556379c380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 147.043709][ T5073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 147.050311][ T5073] CR2: 0000556fcdb53d30 CR3: 000000007d0f6000 CR4: 0000000000350ef0 [ 147.058400][ T5073] Call Trace: [ 147.061725][ T5073] [ 147.064822][ T5073] ? __warn+0x163/0x4b0 [ 147.069034][ T5073] ? inc_nlink+0x129/0x140 [ 147.073618][ T5073] ? report_bug+0x2b3/0x500 [ 147.078227][ T5073] ? inc_nlink+0x129/0x140 [ 147.082811][ T5073] ? handle_bug+0x3e/0x70 [ 147.087201][ T5073] ? exc_invalid_op+0x1a/0x50 [ 147.091926][ T5073] ? asm_exc_invalid_op+0x1a/0x20 [ 147.097033][ T5073] ? __pfx_sysv_mkdir+0x10/0x10 [ 147.101887][ T5073] ? inc_nlink+0xa2/0x140 [ 147.106318][ T5073] ? inc_nlink+0x128/0x140 [ 147.110818][ T5073] ? inc_nlink+0x129/0x140 [ 147.115383][ T5073] sysv_mkdir+0x21/0x130 [ 147.119682][ T5073] vfs_mkdir+0x2fb/0x4b0 [ 147.124078][ T5073] do_mkdirat+0x264/0x3a0 [ 147.128461][ T5073] ? __pfx_do_mkdirat+0x10/0x10 [ 147.133436][ T5073] ? srso_return_thunk+0x5/0x5f [ 147.138357][ T5073] ? getname_flags+0x1fe/0x4f0 [ 147.143283][ T5073] __x64_sys_mkdir+0x6e/0x80 [ 147.147921][ T5073] do_syscall_64+0xfd/0x240 [ 147.152532][ T5073] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 147.158649][ T5073] RIP: 0033:0x7f439b6d1b17 [ 147.163202][ T5073] Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 147.183095][ T5073] RSP: 002b:00007ffd6c12be58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 147.191549][ T5073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f439b6d1b17 [ 147.199645][ T5073] RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00000000200016c0 [ 147.207781][ T5073] RBP: 00000000200016c0 R08: 0000000000000000 R09: 0000000000000000 [ 147.215860][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 147.223956][ T5073] R13: 00007ffd6c12bef0 R14: 0000000000000000 R15: 0000000000000000 [ 147.232085][ T5073] [ 147.235187][ T5073] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 147.242501][ T5073] CPU: 1 PID: 5073 Comm: syz-executor379 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 147.252606][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 147.262687][ T5073] Call Trace: [ 147.265987][ T5073] [ 147.268922][ T5073] dump_stack_lvl+0x241/0x360 [ 147.273630][ T5073] ? __pfx_dump_stack_lvl+0x10/0x10 [ 147.278839][ T5073] ? __pfx__printk+0x10/0x10 [ 147.283440][ T5073] ? _printk+0xd5/0x120 [ 147.287618][ T5073] ? srso_return_thunk+0x5/0x5f [ 147.292478][ T5073] ? vscnprintf+0x5d/0x90 [ 147.296815][ T5073] panic+0x349/0x860 [ 147.300728][ T5073] ? __warn+0x172/0x4b0 [ 147.304900][ T5073] ? __pfx_panic+0x10/0x10 [ 147.309331][ T5073] ? show_trace_log_lvl+0x4e6/0x520 [ 147.314573][ T5073] __warn+0x31e/0x4b0 [ 147.318570][ T5073] ? inc_nlink+0x129/0x140 [ 147.323002][ T5073] report_bug+0x2b3/0x500 [ 147.327337][ T5073] ? inc_nlink+0x129/0x140 [ 147.331765][ T5073] handle_bug+0x3e/0x70 [ 147.335920][ T5073] exc_invalid_op+0x1a/0x50 [ 147.340433][ T5073] asm_exc_invalid_op+0x1a/0x20 [ 147.345298][ T5073] RIP: 0010:inc_nlink+0x129/0x140 [ 147.350351][ T5073] Code: ff e9 33 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 45 ff ff ff 4c 89 ef e8 d2 91 e7 ff e9 38 ff ff ff e8 d8 42 84 ff 90 <0f> 0b 90 e9 7b ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 [ 147.369985][ T5073] RSP: 0018:ffffc90004287d30 EFLAGS: 00010293 [ 147.376154][ T5073] RAX: ffffffff8210b278 RBX: 1ffff1100f336810 RCX: ffff88807c570000 [ 147.384135][ T5073] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 147.392108][ T5073] RBP: 0000000000000000 R08: ffffffff8210b1f2 R09: 1ffff1100298ef20 [ 147.400097][ T5073] R10: dffffc0000000000 R11: ffffffff82bd2dd0 R12: dffffc0000000000 [ 147.408103][ T5073] R13: ffff8880799b4080 R14: ffff8880799b4038 R15: 0000000000000000 [ 147.416096][ T5073] ? __pfx_sysv_mkdir+0x10/0x10 [ 147.420983][ T5073] ? inc_nlink+0xa2/0x140 [ 147.425343][ T5073] ? inc_nlink+0x128/0x140 [ 147.430123][ T5073] sysv_mkdir+0x21/0x130 [ 147.434530][ T5073] vfs_mkdir+0x2fb/0x4b0 [ 147.438797][ T5073] do_mkdirat+0x264/0x3a0 [ 147.443146][ T5073] ? __pfx_do_mkdirat+0x10/0x10 [ 147.448014][ T5073] ? srso_return_thunk+0x5/0x5f [ 147.452870][ T5073] ? getname_flags+0x1fe/0x4f0 [ 147.457641][ T5073] __x64_sys_mkdir+0x6e/0x80 [ 147.462241][ T5073] do_syscall_64+0xfd/0x240 [ 147.466772][ T5073] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 147.472680][ T5073] RIP: 0033:0x7f439b6d1b17 [ 147.477097][ T5073] Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 147.496808][ T5073] RSP: 002b:00007ffd6c12be58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 147.505231][ T5073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f439b6d1b17 [ 147.513201][ T5073] RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00000000200016c0 [ 147.521169][ T5073] RBP: 00000000200016c0 R08: 0000000000000000 R09: 0000000000000000 [ 147.529141][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 147.537111][ T5073] R13: 00007ffd6c12bef0 R14: 0000000000000000 R15: 0000000000000000 [ 147.545110][ T5073] [ 147.548415][ T5073] Kernel Offset: disabled [ 147.552800][ T5073] Rebooting in 86400 seconds..