ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor3971264135 <...> syzkaller login: [ 87.036882][ T198] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.35' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor3971264135", ["ci2-upstream-fs/syz-executor3971264135"], 0x7ffcf8cbd220 /* 10 vars */) = 0 brk(NULL) = 0x55558298b000 brk(0x55558298bd80) = 0x55558298bd80 arch_prctl(ARCH_SET_FS, 0x55558298b400) = 0 set_tid_address(0x55558298b6d0) = 5602 set_robust_list(0x55558298b6e0, 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-executor3971264135", 4096) = 44 getrandom("\xc8\xea\xd1\x2d\x4c\x66\x63\x20", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558298bd80 brk(0x5555829acd80) = 0x5555829acd80 brk(0x5555829ad000) = 0x5555829ad000 mprotect(0x7f55a3590000, 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 5603 attached [pid 5603] set_robust_list(0x55558298b6e0, 24 [pid 5602] <... clone resumed>, child_tidptr=0x55558298b6d0) = 5603 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5602] rt_sigprocmask(SIG_SETMASK, [] [pid 5603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5602] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5603] setpgid(0, 0) = 0 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5603] write(3, "1000", 4) = 4 [pid 5603] close(3) = 0 [pid 5603] write(1, "executing program\n", 18) = 18 executing program [pid 5603] fsopen("ceph", 0) = 3 [pid 5603] fsconfig(3, FSCONFIG_SET_STRING, "source", "client.admin@00000000-0000-0000-0000-000000000000.ceph=/", 0) = 0 [pid 5603] fsconfig(3, FSCONFIG_SET_STRING, "mon_addr", "\x31\x32\x37\x1d\x30\x2e\x30\x2e\x31\x3a\xcd\x1b\xb1\xee", 0) = -1 ESRCH (No such process) [ 91.615269][ T5603] libceph: resolve '1270.0.1' (ret=-3): failed [ 91.637814][ T5603] ------------[ cut here ]------------ [ 91.637827][ T5603] kernel BUG at net/ceph/mon_client.c:211! [ 91.637844][ T5603] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 91.655691][ T5603] CPU: 0 UID: 0 PID: 5603 Comm: syz-executor397 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 91.665937][ T5603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 91.676091][ T5603] RIP: 0010:__open_session+0x799/0x940 [ 91.681687][ T5603] Code: ca fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c d0 fd ff ff be 04 00 00 00 4c 89 e7 e8 a2 ad 1e f7 e9 be fd ff ff e8 58 b4 b2 f6 90 <0f> 0b 4d 89 ee 48 8b 04 24 42 0f b6 04 38 84 c0 0f 85 2f 01 00 00 [ 91.701395][ T5603] RSP: 0018:ffffc90004bafae8 EFLAGS: 00010293 [ 91.707491][ T5603] RAX: ffffffff8b1423d8 RBX: ffff88803ac4c308 RCX: ffff88803e8e1f40 [ 91.715670][ T5603] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.723728][ T5603] RBP: 00000000ffffffff R08: ffff88803e8e1f40 R09: 0000000000000002 [ 91.731724][ T5603] R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000 [ 91.739711][ T5603] R13: ffff88803ac4c470 R14: ffff88803ac4c310 R15: dffffc0000000000 [ 91.748466][ T5603] FS: 000055558298b400(0000) GS:ffff888125bc2000(0000) knlGS:0000000000000000 [ 91.757475][ T5603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.764073][ T5603] CR2: 0000560e1b4567a0 CR3: 0000000043510000 CR4: 00000000003526f0 [ 91.772150][ T5603] Call Trace: [ 91.775457][ T5603] [ 91.778416][ T5603] ceph_monc_open_session+0x56/0x1a0 [ 91.783710][ T5603] __ceph_open_session+0x16d/0x5e0 [ 91.788850][ T5603] ? __pfx___ceph_open_session+0x10/0x10 [ 91.794571][ T5603] ? __pfx_woken_wake_function+0x10/0x10 [ 91.800225][ T5603] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 91.806035][ T5603] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 91.811845][ T5603] ? mutex_lock_nested+0x152/0x1d0 [ 91.816965][ T5603] ? ceph_get_tree+0x891/0x1a40 [ 91.822641][ T5603] ceph_get_tree+0xafb/0x1a40 [ 91.828418][ T5603] ? safesetid_security_capable+0xa9/0x1a0 [ 91.834515][ T5603] vfs_get_tree+0x92/0x2a0 [ 91.838950][ T5603] vfs_cmd_create+0xa2/0x200 [ 91.843679][ T5603] __se_sys_fsconfig+0x6bf/0x810 [ 91.848696][ T5603] ? __pfx___se_sys_fsconfig+0x10/0x10 [ 91.854281][ T5603] ? __x64_sys_fsconfig+0x20/0xc0 [ 91.859548][ T5603] do_syscall_64+0x166/0x520 [ 91.864268][ T5603] ? trace_irq_disable+0x3b/0x140 [ 91.869394][ T5603] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.875647][ T5603] ? clear_bhb_loop+0x70/0xc0 [ 91.880437][ T5603] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.886449][ T5603] RIP: 0033:0x7f55a34fd589 [ 91.890870][ T5603] 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 [ 91.911347][ T5603] RSP: 002b:00007fff0a4bbde8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af [ 91.920465][ T5603] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f55a34fd589 [ 91.929106][ T5603] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 [ 91.937099][ T5603] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000006 [ 91.945089][ T5603] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff0a4bbf58 [ 91.953104][ T5603] R13: 431bde82d7b634db R14: 00007f55a3590c40 R15: 0000000000000002 [ 91.961092][ T5603] [ 91.964115][ T5603] Modules linked in: [ 91.968277][ T5603] ---[ end trace 0000000000000000 ]--- [ 91.973898][ T5603] RIP: 0010:__open_session+0x799/0x940 [ 91.973938][ T5603] Code: ca fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c d0 fd ff ff be 04 00 00 00 4c 89 e7 e8 a2 ad 1e f7 e9 be fd ff ff e8 58 b4 b2 f6 90 <0f> 0b 4d 89 ee 48 8b 04 24 42 0f b6 04 38 84 c0 0f 85 2f 01 00 00 [ 91.973954][ T5603] RSP: 0018:ffffc90004bafae8 EFLAGS: 00010293 [ 91.974108][ T5603] RAX: ffffffff8b1423d8 RBX: ffff88803ac4c308 RCX: ffff88803e8e1f40 [ 91.974126][ T5603] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.974137][ T5603] RBP: 00000000ffffffff R08: ffff88803e8e1f40 R09: 0000000000000002 [ 91.974148][ T5603] R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000 [ 91.974159][ T5603] R13: ffff88803ac4c470 R14: ffff88803ac4c310 R15: dffffc0000000000 [ 91.974175][ T5603] FS: 000055558298b400(0000) GS:ffff888125cc2000(0000) knlGS:0000000000000000 [ 91.974191][ T5603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.974204][ T5603] CR2: 00007ffe74d23c74 CR3: 0000000043510000 CR4: 00000000003526f0 [ 91.974225][ T5603] Kernel panic - not syncing: Fatal exception [ 92.075591][ T5603] Kernel Offset: disabled [ 92.079932][ T5603] Rebooting in 86400 seconds..