./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4144673793 <...> Warning: Permanently added '10.128.1.128' (ED25519) to the list of known hosts. execve("./syz-executor4144673793", ["./syz-executor4144673793"], 0x7ffe89f507a0 /* 10 vars */) = 0 brk(NULL) = 0x55555669e000 brk(0x55555669ed00) = 0x55555669ed00 arch_prctl(ARCH_SET_FS, 0x55555669e380) = 0 set_tid_address(0x55555669e650) = 5051 set_robust_list(0x55555669e660, 24) = 0 rseq(0x55555669eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4144673793", 4096) = 28 getrandom("\x53\x1e\x56\x8e\xd0\x01\x87\x22", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555669ed00 brk(0x5555566bfd00) = 0x5555566bfd00 brk(0x5555566c0000) = 0x5555566c0000 mprotect(0x7f834b3b4000, 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 mkdir("./syzkaller.PdOqPJ", 0700) = 0 chmod("./syzkaller.PdOqPJ", 0777) = 0 chdir("./syzkaller.PdOqPJ") = 0 mkdir("./0", 0777) = 0 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 5052 attached [pid 5052] set_robust_list(0x55555669e660, 24 [pid 5051] <... clone resumed>, child_tidptr=0x55555669e650) = 5052 [pid 5052] <... set_robust_list resumed>) = 0 [pid 5052] chdir("./0") = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0) = 0 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4) = 4 [pid 5052] close(3) = 0 [pid 5052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5052] memfd_create("syzkaller", 0) = 3 [pid 5052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8342e00000 [pid 5052] 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"..., 16777216) = 16777216 [pid 5052] munmap(0x7f8342e00000, 138412032) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5052] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5052] close(3) = 0 [pid 5052] close(4) = 0 [pid 5052] mkdir("./file0", 0777) = 0 [ 72.056661][ T5052] loop0: detected capacity change from 0 to 32768 [ 72.093522][ T5052] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 72.102171][ T5052] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 72.127353][ T5052] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 72.137509][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 72.144576][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 72.218675][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 74ms [ 72.227194][ T9] gfs2: fsid=syz:syz.0: jid=0: Done [ 72.232514][ T5052] gfs2: fsid=syz:syz.0: first mount done, others may mount [pid 5052] mount("/dev/loop0", "./file0", "gfs2", MS_STRICTATIME, "") = 0 [pid 5052] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5052] exit_group(0) = ? [pid 5052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5052, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=62 /* 0.62 s */} --- [ 72.625018][ T5052] gfs2: fsid=syz:syz.0: found 2 quota changes restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55555669f6f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 72.726844][ T5051] gfs2: fsid=syz:syz.0: original: gfs2_quota_sync+0x3cc/0x590 [ 72.734484][ T5051] gfs2: fsid=syz:syz.0: pid: 5051 [ 72.739597][ T5051] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 72.746742][ T5051] gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x3cc/0x590 [ 72.753799][ T5051] gfs2: fsid=syz:syz.0: pid: 5051 [ 72.758879][ T5051] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 72.765836][ T5051] gfs2: fsid=syz:syz.0: G: s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 p:0 [ 72.774675][ T5051] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:5051 [syz-executor414] gfs2_quota_sync+0x3cc/0x590 [ 72.785648][ T5051] ------------[ cut here ]------------ [ 72.791864][ T5051] kernel BUG at fs/gfs2/glock.c:1560! [ 72.797342][ T5051] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 72.803765][ T5051] CPU: 0 PID: 5051 Comm: syz-executor414 Not tainted 6.8.0-rc5-syzkaller #0 [ 72.812442][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 72.822501][ T5051] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 [ 72.828236][ T5051] Code: fe 0f b7 0b 48 c7 c7 e0 60 ed 8b 48 8b 74 24 20 44 89 f2 e8 a7 03 8c 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 d6 61 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 [ 72.847842][ T5051] RSP: 0018:ffffc9000426f8d8 EFLAGS: 00010246 [ 72.853912][ T5051] RAX: ae3a836c71a1b100 RBX: ffff8880241c805a RCX: ffff88802a749dc0 [ 72.861889][ T5051] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 72.869860][ T5051] RBP: 0000000000000000 R08: ffffffff83ce6f57 R09: 1ffffffff1f0873d [ 72.877833][ T5051] R10: dffffc0000000000 R11: fffffbfff1f0873e R12: ffff8880241c8022 [ 72.885806][ T5051] R13: 1ffff11004839003 R14: 0000000000000008 R15: ffff8880241c8018 [ 72.893802][ T5051] FS: 000055555669e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 72.902732][ T5051] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.909316][ T5051] CR2: 00005555566a76f8 CR3: 000000002d750000 CR4: 00000000003506f0 [ 72.917292][ T5051] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.925263][ T5051] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.933320][ T5051] Call Trace: [ 72.936695][ T5051] [ 72.939626][ T5051] ? __die_body+0x8b/0xe0 [ 72.943970][ T5051] ? die+0xcf/0x110 [ 72.947799][ T5051] ? do_trap+0x157/0x390 [ 72.952047][ T5051] ? gfs2_glock_nq+0x174b/0x1ab0 [ 72.956995][ T5051] ? do_error_trap+0x1dc/0x2c0 [ 72.961768][ T5051] ? gfs2_glock_nq+0x174b/0x1ab0 [ 72.966722][ T5051] ? __pfx_do_error_trap+0x10/0x10 [ 72.971847][ T5051] ? handle_invalid_op+0x34/0x40 [ 72.976877][ T5051] ? gfs2_glock_nq+0x174b/0x1ab0 [ 72.981822][ T5051] ? exc_invalid_op+0x38/0x50 [ 72.986525][ T5051] ? asm_exc_invalid_op+0x1a/0x20 [ 72.991576][ T5051] ? gfs2_dump_glock+0x17f7/0x1bb0 [ 72.996788][ T5051] ? gfs2_glock_nq+0x174b/0x1ab0 [ 73.001744][ T5051] ? gfs2_glock_nq+0x174a/0x1ab0 [ 73.006697][ T5051] do_sync+0x3cc/0xec0 [ 73.010866][ T5051] ? gfs2_quota_sync+0x3cc/0x590 [ 73.015806][ T5051] ? __pfx_do_sync+0x10/0x10 [ 73.020396][ T5051] ? do_raw_spin_lock+0x14e/0x370 [ 73.025437][ T5051] ? do_raw_spin_unlock+0x13b/0x8b0 [ 73.030646][ T5051] gfs2_quota_sync+0x3cc/0x590 [ 73.035418][ T5051] gfs2_sync_fs+0x4d/0xc0 [ 73.039776][ T5051] sync_filesystem+0xed/0x230 [ 73.044473][ T5051] generic_shutdown_super+0x72/0x2d0 [ 73.049782][ T5051] kill_block_super+0x44/0x90 [ 73.054480][ T5051] deactivate_locked_super+0xc4/0x130 [ 73.059869][ T5051] cleanup_mnt+0x426/0x4c0 [ 73.064310][ T5051] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.069524][ T5051] task_work_run+0x24e/0x310 [ 73.074171][ T5051] ? __pfx_task_work_run+0x10/0x10 [ 73.079307][ T5051] ? path_umount+0x283/0xf80 [ 73.083907][ T5051] ptrace_notify+0x2d1/0x380 [ 73.088523][ T5051] ? __pfx_path_umount+0x10/0x10 [ 73.093571][ T5051] ? __pfx_ptrace_notify+0x10/0x10 [ 73.099599][ T5051] ? __x64_sys_umount+0x126/0x170 [ 73.104655][ T5051] ? __pfx___x64_sys_umount+0x10/0x10 [ 73.110043][ T5051] syscall_exit_work+0xbb/0x170 [ 73.114913][ T5051] syscall_exit_to_user_mode+0x27f/0x370 [ 73.120562][ T5051] do_syscall_64+0x108/0x240 [ 73.125167][ T5051] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 73.131076][ T5051] RIP: 0033:0x7f834b32e307 [ 73.135491][ T5051] Code: 08 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 73.155099][ T5051] RSP: 002b:00007ffd57f93098 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 73.163517][ T5051] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f834b32e307 [ 73.171493][ T5051] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd57f93150 [ 73.179463][ T5051] RBP: 00007ffd57f93150 R08: 0000000000000000 R09: 0000000000000000 [ 73.187433][ T5051] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd57f941b0 [ 73.195405][ T5051] R13: 000055555669f6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 73.203388][ T5051] [ 73.206405][ T5051] Modules linked in: [ 73.210419][ T5051] ---[ end trace 0000000000000000 ]--- [ 73.215892][ T5051] RIP: 0010:gfs2_glock_nq+0x174b/0x1ab0 [ 73.221514][ T5051] Code: fe 0f b7 0b 48 c7 c7 e0 60 ed 8b 48 8b 74 24 20 44 89 f2 e8 a7 03 8c 07 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 d6 61 ff ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 3e f8 ff ff 48 89 df e8 [ 73.241213][ T5051] RSP: 0018:ffffc9000426f8d8 EFLAGS: 00010246 [ 73.247322][ T5051] RAX: ae3a836c71a1b100 RBX: ffff8880241c805a RCX: ffff88802a749dc0 [ 73.255295][ T5051] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 73.263305][ T5051] RBP: 0000000000000000 R08: ffffffff83ce6f57 R09: 1ffffffff1f0873d [ 73.271314][ T5051] R10: dffffc0000000000 R11: fffffbfff1f0873e R12: ffff8880241c8022 [ 73.279318][ T5051] R13: 1ffff11004839003 R14: 0000000000000008 R15: ffff8880241c8018 [ 73.287323][ T5051] FS: 000055555669e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 73.296322][ T5051] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.302924][ T5051] CR2: 00005555566a76f8 CR3: 000000002d750000 CR4: 00000000003506f0 [ 73.310954][ T5051] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.318964][ T5051] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.326975][ T5051] Kernel panic - not syncing: Fatal exception [ 73.333328][ T5051] Kernel Offset: disabled [ 73.337650][ T5051] Rebooting in 86400 seconds..