ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor1223834051 <...> [ 87.069512][ T996] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.191' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor1223834051", ["ci2-upstream-fs/syz-executor1223834051"], 0x7ffd0df3b300 /* 10 vars */) = 0 brk(NULL) = 0x55556d267000 brk(0x55556d267d80) = 0x55556d267d80 arch_prctl(ARCH_SET_FS, 0x55556d267400) = 0 set_tid_address(0x55556d2676d0) = 5597 set_robust_list(0x55556d2676e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor1223834051", 4096) = 44 getrandom("\xc4\xfe\x45\xb9\x42\xd7\xdb\xc7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d267d80 brk(0x55556d288d80) = 0x55556d288d80 brk(0x55556d289000) = 0x55556d289000 mprotect(0x7fc0ae1b7000, 20480, 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 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5598 attached [pid 5598] set_robust_list(0x55556d2676e0, 24 [pid 5597] <... clone resumed>, child_tidptr=0x55556d2676d0) = 5598 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5597] rt_sigprocmask(SIG_SETMASK, [] [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5597] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5598] <... prctl resumed>) = 0 [pid 5598] setpgid(0, 0) = 0 [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5598] write(3, "1000", 4) = 4 [pid 5598] close(3) = 0 [pid 5598] write(1, "executing program\n", 18) = 18 executing program [pid 5598] mkdirat(AT_FDCWD, "./config", 0777) = 0 [pid 5598] mount(NULL, "./config", "configfs", 0, NULL) = 0 [pid 5598] mkdirat(AT_FDCWD, "./config/dlm/cluster", 0777) = 0 [pid 5598] mkdirat(AT_FDCWD, "./config/dlm/cluster/comms/1", 0777) = 0 [ 91.567812][ ** replaying previous printk message ** [ 91.567812][ T5598] dlm: closing connection to node 1 [ 91.568874][ T5598] ------------[ cut here ]------------ [ 91.568885][ T5598] !con [ 91.568892][ T5598] WARNING: fs/dlm/lowcomms.c:1455 at dlm_lowcomms_close+0x12d/0x470, CPU#1: syz-executor122/5598 [ 91.597722][ T5598] Modules linked in: [ 91.601641][ T5598] CPU: 1 UID: 0 PID: 5598 Comm: syz-executor122 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 91.611932][ T5598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 91.622233][ T5598] RIP: 0010:dlm_lowcomms_close+0x12d/0x470 [ 91.628108][ T5598] Code: e9 57 9e 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 62 06 0a 01 eb a2 e8 cb 57 9e 00 eb 05 e8 c4 57 9e 00 90 <0f> 0b 90 44 89 f7 e8 a8 54 4e 01 b8 fe ff ff ff 48 83 c4 20 5b 41 [ 91.647856][ T5598] RSP: 0018:ffffc90004c67c40 EFLAGS: 00010293 [ 91.653948][ T5598] RAX: ffffffff812821f5 RBX: 0000000000000001 RCX: ffff888037163e80 [ 91.661952][ T5598] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.669977][ T5598] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff95caa980 [ 91.678000][ T5598] R10: 00000000fe287748 R11: 00000000310b965c R12: 0000000000000000 [ 91.685986][ T5598] R13: ffffffff81282128 R14: 0000000000000000 R15: 0000000000000000 [ 91.694086][ T5598] FS: 000055556d267400(0000) GS:ffff888125cd5000(0000) knlGS:0000000000000000 [ 91.703196][ T5598] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.709863][ T5598] CR2: 000055ecf8794000 CR3: 0000000044882000 CR4: 00000000003526f0 [ 91.718024][ T5598] Call Trace: [ 91.721330][ T5598] [ 91.724562][ T5598] ? dlm_midcomms_close+0x3c1/0x4e0 [ 91.729851][ T5598] ? dlm_midcomms_close+0x4b/0x4e0 [ 91.734988][ T5598] drop_comm+0x61/0x190 [ 91.739224][ T5598] ? configfs_rmdir+0x850/0x950 [ 91.744144][ T5598] ? __pfx_drop_comm+0x10/0x10 [ 91.749211][ T5598] configfs_rmdir+0x85f/0x950 [ 91.753933][ T5598] vfs_rmdir+0x3e9/0x6b0 [ 91.758229][ T5598] ? bpf_lsm_path_rmdir+0x9/0x20 [ 91.763177][ T5598] filename_rmdir+0x292/0x520 [ 91.767902][ T5598] ? __pfx_filename_rmdir+0x10/0x10 [ 91.773106][ T5598] ? do_getname+0x151/0x250 [ 91.777660][ T5598] __se_sys_unlinkat+0x71/0x1a0 [ 91.782516][ T5598] do_syscall_64+0x166/0x520 [ 91.787105][ T5598] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.793209][ T5598] ? clear_bhb_loop+0x70/0xc0 [ 91.798026][ T5598] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.803955][ T5598] RIP: 0033:0x7fc0ae124589 [ 91.808426][ T5598] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 91.828167][ T5598] RSP: 002b:00007fff08de5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 [ 91.836607][ T5598] RAX: ffffffffffffffda RBX: 00002000000001c0 RCX: 00007fc0ae124589 [ 91.844650][ T5598] RDX: 0000000000000200 RSI: 00002000000001c0 RDI: 00000000ffffff9c [ 91.852687][ T5598] RBP: 0000000000000001 R08: 0000000000000006 R09: 0000000000000006 [ 91.860711][ T5598] R10: 0000000000000006 R11: 0000000000000246 R12: 00007fff08de57d8 [ 91.868733][ T5598] R13: 431bde82d7b634db R14: 00007fc0ae1b7c40 R15: 0000000000000002 [ 91.876719][ T5598] [ 91.879979][ T5598] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 91.887521][ T5598] CPU: 1 UID: 0 PID: 5598 Comm: syz-executor122 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 91.897795][ T5598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 91.907941][ T5598] Call Trace: [ 91.911227][ T5598] [ 91.914157][ T5598] vpanic+0x56d/0xa60 [ 91.918137][ T5598] ? __pfx__printk+0x10/0x10 [ 91.922722][ T5598] ? __pfx_vpanic+0x10/0x10 [ 91.927217][ T5598] ? is_bpf_text_address+0x292/0x2b0 [ 91.932519][ T5598] ? is_bpf_text_address+0x26/0x2b0 [ 91.937724][ T5598] panic+0xc5/0xd0 [ 91.941524][ T5598] ? __pfx_panic+0x10/0x10 [ 91.945937][ T5598] __warn+0x315/0x4c0 [ 91.949946][ T5598] ? dlm_lowcomms_close+0x12d/0x470 [ 91.955170][ T5598] ? dlm_lowcomms_close+0x12d/0x470 [ 91.960457][ T5598] __report_bug+0x276/0x570 [ 91.965014][ T5598] ? check_path+0x21/0x40 [ 91.969343][ T5598] ? dlm_lowcomms_close+0x12d/0x470 [ 91.974629][ T5598] ? __pfx___report_bug+0x10/0x10 [ 91.979764][ T5598] ? lockdep_unlock+0x5c/0xd0 [ 91.984454][ T5598] ? __lock_acquire+0x14b9/0x2e40 [ 91.989520][ T5598] ? dlm_lowcomms_close+0x12d/0x470 [ 91.994744][ T5598] report_bug+0x16b/0x220 [ 91.999180][ T5598] ? dlm_lowcomms_close+0x12d/0x470 [ 92.004385][ T5598] ? dlm_lowcomms_close+0x12f/0x470 [ 92.009590][ T5598] handle_bug+0x9c/0x200 [ 92.013834][ T5598] exc_invalid_op+0x1a/0x50 [ 92.018341][ T5598] asm_exc_invalid_op+0x1a/0x20 [ 92.023186][ T5598] RIP: 0010:dlm_lowcomms_close+0x12d/0x470 [ 92.028990][ T5598] Code: e9 57 9e 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 62 06 0a 01 eb a2 e8 cb 57 9e 00 eb 05 e8 c4 57 9e 00 90 <0f> 0b 90 44 89 f7 e8 a8 54 4e 01 b8 fe ff ff ff 48 83 c4 20 5b 41 [ 92.048597][ T5598] RSP: 0018:ffffc90004c67c40 EFLAGS: 00010293 [ 92.054772][ T5598] RAX: ffffffff812821f5 RBX: 0000000000000001 RCX: ffff888037163e80 [ 92.063200][ T5598] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.071274][ T5598] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff95caa980 [ 92.079404][ T5598] R10: 00000000fe287748 R11: 00000000310b965c R12: 0000000000000000 [ 92.087409][ T5598] R13: ffffffff81282128 R14: 0000000000000000 R15: 0000000000000000 [ 92.095488][ T5598] ? dlm_lowcomms_close+0x58/0x470 [ 92.100640][ T5598] ? dlm_lowcomms_close+0x125/0x470 [ 92.105895][ T5598] ? dlm_midcomms_close+0x3c1/0x4e0 [ 92.111288][ T5598] ? dlm_midcomms_close+0x4b/0x4e0 [ 92.116443][ T5598] drop_comm+0x61/0x190 [ 92.120614][ T5598] ? configfs_rmdir+0x850/0x950 [ 92.125728][ T5598] ? __pfx_drop_comm+0x10/0x10 [ 92.130494][ T5598] configfs_rmdir+0x85f/0x950 [ 92.135177][ T5598] vfs_rmdir+0x3e9/0x6b0 [ 92.139417][ T5598] ? bpf_lsm_path_rmdir+0x9/0x20 [ 92.144367][ T5598] filename_rmdir+0x292/0x520 [ 92.149047][ T5598] ? __pfx_filename_rmdir+0x10/0x10 [ 92.154267][ T5598] ? do_getname+0x151/0x250 [ 92.158771][ T5598] __se_sys_unlinkat+0x71/0x1a0 [ 92.163619][ T5598] do_syscall_64+0x166/0x520 [ 92.168204][ T5598] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.174275][ T5598] ? clear_bhb_loop+0x70/0xc0 [ 92.178968][ T5598] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.184875][ T5598] RIP: 0033:0x7fc0ae124589 [ 92.189377][ T5598] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 92.209009][ T5598] RSP: 002b:00007fff08de5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 [ 92.217430][ T5598] RAX: ffffffffffffffda RBX: 00002000000001c0 RCX: 00007fc0ae124589 [ 92.225610][ T5598] RDX: 0000000000000200 RSI: 00002000000001c0 RDI: 00000000ffffff9c [ 92.236713][ T5598] RBP: 0000000000000001 R08: 0000000000000006 R09: 0000000000000006 [ 92.244701][ T5598] R10: 0000000000000006 R11: 0000000000000246 R12: 00007fff08de57d8 [ 92.252700][ T5598] R13: 431bde82d7b634db R14: 00007fc0ae1b7c40 R15: 0000000000000002 [ 92.260694][ T5598] [ 92.264040][ T5598] Kernel Offset: disabled [ 92.268375][ T5598] Rebooting in 86400 seconds..