ci-upstream-kasan-gce-smack-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kasan-gce-smack-root/syz-executor1622088067 <...> Warning: Permanently added '10.128.0.73' (ED25519) to the list of known hosts. execve("ci-upstream-kasan-gce-smack-root/syz-executor1622088067", ["ci-upstream-kasan-gce-smack-root/syz-executor1622088067"], 0x7ffe2e0c19d0 /* 10 vars */) = 0 brk(NULL) = 0x555563612000 brk(0x555563612d80) = 0x555563612d80 arch_prctl(ARCH_SET_FS, 0x555563612400) = 0 set_tid_address(0x5555636126d0) = 5607 set_robust_list(0x5555636126e0, 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/ci-upstream-kasan-gce-smack-root/syz-executor1622088067", 4096) = 61 getrandom("\x66\x7c\x0f\xd9\x66\x31\xc0\xd0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563612d80 brk(0x555563633d80) = 0x555563633d80 brk(0x555563634000) = 0x555563634000 mprotect(0x7fb419812000, 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|SIGCHLDci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5608 attached [pid 5608] set_robust_list(0x5555636126e0, 24 [pid 5607] <... clone resumed>, child_tidptr=0x5555636126d0) = 5608 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5607] rt_sigprocmask(SIG_SETMASK, [] [pid 5608] rt_sigprocmask(SIG_SETMASK, [] [pid 5607] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5608] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5608] setpgid(0, 0) = 0 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5608] write(3, "1000", 4) = 4 [pid 5608] close(3) = 0 executing program [pid 5608] write(1, "executing program\n", 18) = 18 [pid 5608] mkdirat(AT_FDCWD, "./config", 0755) = 0 [pid 5608] mount(NULL, "./config", "configfs", 0, NULL) = 0 [pid 5608] mkdirat(AT_FDCWD, "./config/nvmet/subsystems/testnqn", 0755) = 0 [pid 5608] mkdirat(AT_FDCWD, "./config/nvmet/subsystems/testnqn/namespaces/1", 0755) = 0 [pid 5608] openat(AT_FDCWD, "./config/nvmet/subsystems/testnqn/namespaces/1/buffered_io", O_RDWR) = 3 [pid 5608] write(3, "1", 1) = 1 [pid 5608] openat(AT_FDCWD, "./config/nvmet/subsystems/testnqn/namespaces/1/enable", O_RDWR) = 4 [ 83.489103][ T5608] nvmet: adding nsid 1 to subsystem testnqn [ 83.504151][ T37] audit: ty[ 83.504151][ T37] audit: type=1800 audit(1785879096.668:2): pid=5608 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed comm="syz-executor162" name="buffered_io" dev="configfs" ino=5310 res=0 errno=0 [ 83.506491][ T37] audit: type=1800 audit(1785879096.668:3): pid=5608 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed comm="syz-executor162" name="enable" dev="configfs" ino=5311 res=0 errno=0 [ 83.510283][ T5608] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI [ 83.510304][ T5608] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 83.510338][ T5608] CPU: 1 UID: 0 PID: 5608 Comm: syz-executor162 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 83.510358][ T5608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 83.510368][ T5608] RIP: 0010:strlen+0x29/0x70 [ 83.510418][ T5608] Code: 90 f3 0f 1e fa 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 [ 83.510432][ T5608] RSP: 0018:ffffc900043ef978 EFLAGS: 00010246 [ 83.510448][ T5608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88803cd4dd00 [ 83.510459][ T5608] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 83.510469][ T5608] RBP: ffffc900043efab8 R08: 0000000000000000 R09: 0000000000000000 [ 83.510480][ T5608] R10: dffffc0000000000 R11: fffffbfff1f5f467 R12: 1ffff9200087df40 [ 83.510493][ T5608] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff [ 83.510506][ T5608] FS: 0000555563612400(0000) GS:ffff888125d3e000(0000) knlGS:0000000000000000 [ 83.510525][ T5608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.510537][ T5608] CR2: 0000563591bce000 CR3: 0000000046a98000 CR4: 00000000003526f0 [ 83.510552][ T5608] Call Trace: [ 83.510558][ T5608] [ 83.510566][ T5608] do_getname_kernel+0x1d/0x230 [ 83.510588][ T5608] ? getname_kernel+0xd/0x20 [ 83.510604][ T5608] filp_open+0x87/0x1d0 [ 83.510622][ T5608] ? __pfx_filp_open+0x10/0x10 [ 83.510638][ T5608] ? preempt_schedule_common+0x82/0xd0 [ 83.510659][ T5608] ? preempt_schedule_thunk+0x16/0x40 [ 83.510682][ T5608] nvmet_file_ns_enable+0x74/0x360 [ 83.510703][ T5608] ? nvmet_ns_enable+0x4d/0x780 [ 83.510726][ T5608] nvmet_ns_enable+0xaa/0x780 [ 83.510745][ T5608] ? rwbase_write_lock+0x550/0x720 [ 83.510771][ T5608] nvmet_ns_enable_store+0xd7/0x170 [ 83.510791][ T5608] ? __pfx_nvmet_ns_enable_store+0x10/0x10 [ 83.510809][ T5608] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 83.510831][ T5608] ? configfs_write_iter+0x81/0x430 [ 83.510850][ T5608] ? __pfx_nvmet_ns_enable_store+0x10/0x10 [ 83.510868][ T5608] configfs_write_iter+0x33a/0x430 [ 83.510888][ T5608] vfs_write+0x61e/0xbb0 [ 83.510911][ T5608] ? __pfx_vfs_write+0x10/0x10 [ 83.510932][ T5608] ? rt_spin_unlock+0x157/0x200 [ 83.510951][ T5608] ? rt_spin_unlock+0x163/0x200 [ 83.510970][ T5608] ksys_write+0x156/0x270 [ 83.510990][ T5608] ? __pfx_ksys_write+0x10/0x10 [ 83.511013][ T5608] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.511030][ T5608] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.511047][ T5608] do_syscall_64+0x174/0x580 [ 83.511068][ T5608] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.511084][ T5608] ? clear_bhb_loop+0x40/0x90 [ 83.511102][ T5608] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.511118][ T5608] RIP: 0033:0x7fb41977f689 [ 83.511137][ T5608] 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 [ 83.511150][ T5608] RSP: 002b:00007ffe221a7f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.511172][ T5608] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fb41977f689 [ 83.511185][ T5608] RDX: 0000000000000001 RSI: 0000200000000580 RDI: 0000000000000004 [ 83.511196][ T5608] RBP: 6769666e6f632f2e R08: 0000000000000006 R09: 0000000000000006 [ 83.511207][ T5608] R10: 0000000000000006 R11: 0000000000000246 R12: 00007ffe221a8108 [ 83.511218][ T5608] R13: 0000200000000008 R14: 00007fb419812c40 R15: 0000000000000002 [ 83.511236][ T5608] [ 83.511241][ T5608] Modules linked in: [ 83.511266][ T5608] ---[ end trace 0000000000000000 ]--- [ 83.511286][ T5608] RIP: 0010:strlen+0x29/0x70 [ 83.511308][ T5608] Code: 90 f3 0f 1e fa 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 [ 83.511321][ T5608] RSP: 0018:ffffc900043ef978 EFLAGS: 00010246 [ 83.511335][ T5608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88803cd4dd00 [ 83.511346][ T5608] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 83.511356][ T5608] RBP: ffffc900043efab8 R08: 0000000000000000 R09: 0000000000000000 [ 83.511368][ T5608] R10: dffffc0000000000 R11: fffffbfff1f5f467 R12: 1ffff9200087df40 [ 83.511381][ T5608] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff [ 83.511394][ T5608] FS: 0000555563612400(0000) GS:ffff888125d3e000(0000) knlGS:0000000000000000 [ 83.511409][ T5608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.511421][ T5608] CR2: 0000563591bce000 CR3: 0000000046a98000 CR4: 00000000003526f0 [ 83.511438][ T5608] Kernel panic - not syncing: Fatal exception [ 83.511583][ T5608] Kernel Offset: disabled