./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3704914517 <...> [ 86.996089][ T26] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.26' (ED25519) to the list of known hosts. execve("./syz-executor3704914517", ["./syz-executor3704914517"], 0x7ffeec1ce0c0 /* 10 vars */) = 0 brk(NULL) = 0x5555560f7000 brk(0x5555560f7d00) = 0x5555560f7d00 arch_prctl(ARCH_SET_FS, 0x5555560f7380) = 0 set_tid_address(0x5555560f7650) = 5063 set_robust_list(0x5555560f7660, 24) = 0 rseq(0x5555560f7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3704914517", 4096) = 28 getrandom("\x43\xb1\xa4\xc3\xb9\x10\x24\xc9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555560f7d00 brk(0x555556118d00) = 0x555556118d00 brk(0x555556119000) = 0x555556119000 mprotect(0x7f286dd6a000, 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.f427Xb", 0700) = 0 chmod("./syzkaller.f427Xb", 0777) = 0 chdir("./syzkaller.f427Xb") = 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 [ 89.898751][ T27] audit: type=1400 audit(1700374096.057:83): avc: denied { execmem } for pid=5063 comm="syz-executor370" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 89.924884][ T27] audit: type=1400 audit(1700374096.087:84): avc: denied { append } for pid=4495 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5064 attached , child_tidptr=0x5555560f7650) = 5064 [pid 5064] set_robust_list(0x5555560f7660, 24) = 0 [pid 5064] chdir("./0") = 0 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setpgid(0, 0) = 0 [ 89.947141][ T27] audit: type=1400 audit(1700374096.087:85): avc: denied { open } for pid=4495 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 89.970429][ T27] audit: type=1400 audit(1700374096.087:86): avc: denied { getattr } for pid=4495 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1000", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5064] memfd_create("syzkaller", 0) = 3 [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f28658a4000 [ 89.993249][ T27] audit: type=1400 audit(1700374096.097:87): avc: denied { read write } for pid=5063 comm="syz-executor370" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 90.022344][ T27] audit: type=1400 audit(1700374096.097:88): avc: denied { open } for pid=5063 comm="syz-executor370" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 90.047205][ T27] audit: type=1400 audit(1700374096.097:89): avc: denied { ioctl } for pid=5063 comm="syz-executor370" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5064] 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 5064] munmap(0x7f28658a4000, 138412032) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5064] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5064] close(3) = 0 [pid 5064] mkdir("./file0", 0777) = 0 [ 90.347261][ T5064] loop0: detected capacity change from 0 to 32768 [ 90.373001][ T27] audit: type=1400 audit(1700374096.527:90): avc: denied { mounton } for pid=5064 comm="syz-executor370" path="/root/syzkaller.f427Xb/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 90.392464][ T5064] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 90.405808][ T5064] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 90.419918][ T5064] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 90.429569][ T4838] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 90.436802][ T4838] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 90.504999][ T4838] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms [ 90.513005][ T4838] gfs2: fsid=syz:syz.0: jid=0: Done [ 90.520077][ T5064] gfs2: fsid=syz:syz.0: first mount done, others may mount [pid 5064] mount("/dev/loop0", "./file0", "gfs2", 0, "") = 0 [pid 5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5064] ioctl(4, LOOP_CLR_FD) = 0 [pid 5064] close(4) = 0 [pid 5064] exit_group(0) = ? [pid 5064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=59 /* 0.59 s */} --- 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, 0x5555560f86f0 /* 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 [ 90.867368][ T5064] gfs2: fsid=syz:syz.0: found 3 quota changes [ 90.880123][ T27] audit: type=1400 audit(1700374097.037:91): avc: denied { mount } for pid=5064 comm="syz-executor370" name="/" dev="loop0" ino=3111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 unlink("./0/binderfs") = 0 [ 90.952184][ T27] audit: type=1400 audit(1700374097.107:92): avc: denied { unmount } for pid=5063 comm="syz-executor370" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 90.979834][ T5063] gfs2: fsid=syz:syz.0: original: gfs2_quota_sync+0x419/0x630 [ 90.987637][ T5063] gfs2: fsid=syz:syz.0: pid: 5063 [ 90.992641][ T5063] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 90.999598][ T5063] gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x419/0x630 [ 91.006655][ T5063] gfs2: fsid=syz:syz.0: pid: 5063 [ 91.011662][ T5063] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 91.018628][ T5063] gfs2: fsid=syz:syz.0: G: s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:7 m:20 p:0 [ 91.027440][ T5063] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:5063 [syz-executor370] gfs2_quota_sync+0x419/0x630 [ 91.038273][ T5063] ------------[ cut here ]------------ [ 91.043724][ T5063] kernel BUG at fs/gfs2/glock.c:1543! [ 91.049133][ T5063] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 91.055198][ T5063] CPU: 1 PID: 5063 Comm: syz-executor370 Not tainted 6.7.0-rc1-syzkaller-00311-g05aa69b096a0 #0 [ 91.065590][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 91.075624][ T5063] RIP: 0010:gfs2_glock_nq+0xc01/0x13f0 [ 91.081071][ T5063] Code: 03 0f 8e e0 05 00 00 8b 55 18 48 89 de 48 c7 c7 c0 be 19 8b e8 f0 64 c6 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 e0 52 ff ff 90 <0f> 0b e8 48 8c e3 fd 48 89 ef e8 c0 91 ff ff 41 89 c4 e9 ae f9 ff [ 91.100668][ T5063] RSP: 0018:ffffc9000348fa28 EFLAGS: 00010286 [ 91.106732][ T5063] RAX: 0000000000000000 RBX: ffff88802131d270 RCX: fffff52000691ef6 [ 91.114698][ T5063] RDX: ffff888020144200 RSI: ffffffff83a26518 RDI: ffffffff8b19f5b0 [ 91.122833][ T5063] RBP: ffff888076f44000 R08: 0000000000000001 R09: 0000000000000000 [ 91.130796][ T5063] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801ff9dd00 [ 91.138758][ T5063] R13: 00000000000013c7 R14: ffff88801f20a618 R15: ffff88801f20a600 [ 91.146724][ T5063] FS: 00005555560f7380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 91.155650][ T5063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.162231][ T5063] CR2: 000055f1e6fe5510 CR3: 000000001f709000 CR4: 00000000003506f0 [ 91.170197][ T5063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.178159][ T5063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.186124][ T5063] Call Trace: [ 91.189391][ T5063] [ 91.192312][ T5063] ? show_regs+0x8f/0xa0 [ 91.196554][ T5063] ? die+0x36/0xa0 [ 91.200275][ T5063] ? do_trap+0x22b/0x420 [ 91.204520][ T5063] ? gfs2_glock_nq+0xc01/0x13f0 [ 91.209368][ T5063] ? gfs2_glock_nq+0xc01/0x13f0 [ 91.214213][ T5063] ? do_error_trap+0xf4/0x230 [ 91.218893][ T5063] ? gfs2_glock_nq+0xc01/0x13f0 [ 91.223738][ T5063] ? handle_invalid_op+0x34/0x40 [ 91.228681][ T5063] ? gfs2_glock_nq+0xc01/0x13f0 [ 91.233524][ T5063] ? exc_invalid_op+0x2e/0x40 [ 91.238200][ T5063] ? asm_exc_invalid_op+0x1a/0x20 [ 91.243231][ T5063] ? gfs2_dump_glock+0x1778/0x1c80 [ 91.248339][ T5063] ? gfs2_glock_nq+0xc01/0x13f0 [ 91.253183][ T5063] ? gfs2_glock_nq+0xc00/0x13f0 [ 91.258029][ T5063] do_sync+0x45a/0xd30 [ 91.262091][ T5063] ? do_qc+0x5e0/0x5e0 [ 91.266154][ T5063] ? gfs2_quota_sync+0x4ad/0x630 [ 91.271086][ T5063] ? spin_bug+0x1d0/0x1d0 [ 91.275416][ T5063] ? qd_check_sync+0x3d8/0x4f0 [ 91.280176][ T5063] gfs2_quota_sync+0x419/0x630 [ 91.284934][ T5063] gfs2_sync_fs+0x44/0xb0 [ 91.289264][ T5063] ? rgrp_unlock_local+0x20/0x20 [ 91.294197][ T5063] sync_filesystem+0x109/0x280 [ 91.298967][ T5063] generic_shutdown_super+0x7e/0x3d0 [ 91.304257][ T5063] kill_block_super+0x3b/0x90 [ 91.308932][ T5063] gfs2_kill_sb+0x361/0x410 [ 91.313438][ T5063] deactivate_locked_super+0xbc/0x1a0 [ 91.318814][ T5063] deactivate_super+0xde/0x100 [ 91.323577][ T5063] cleanup_mnt+0x222/0x450 [ 91.327995][ T5063] task_work_run+0x14d/0x240 [ 91.332589][ T5063] ? task_work_cancel+0x30/0x30 [ 91.337446][ T5063] ptrace_notify+0x10d/0x130 [ 91.342031][ T5063] syscall_exit_to_user_mode_prepare+0x126/0x230 [ 91.348360][ T5063] syscall_exit_to_user_mode+0xe/0x60 [ 91.353735][ T5063] do_syscall_64+0x4d/0x110 [ 91.358234][ T5063] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 91.364128][ T5063] RIP: 0033:0x7f286dce42c7 [ 91.368541][ T5063] 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 [ 91.388316][ T5063] RSP: 002b:00007ffc36e28128 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 91.396723][ T5063] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f286dce42c7 [ 91.404685][ T5063] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc36e281e0 [ 91.412656][ T5063] RBP: 00007ffc36e281e0 R08: 0000000000000000 R09: 0000000000000000 [ 91.420618][ T5063] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc36e29240 [ 91.428584][ T5063] R13: 00005555560f86c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 91.436552][ T5063] [ 91.439559][ T5063] Modules linked in: [ 91.443580][ T5063] ---[ end trace 0000000000000000 ]--- [ 91.449070][ T5063] RIP: 0010:gfs2_glock_nq+0xc01/0x13f0 [ 91.454569][ T5063] Code: 03 0f 8e e0 05 00 00 8b 55 18 48 89 de 48 c7 c7 c0 be 19 8b e8 f0 64 c6 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 e0 52 ff ff 90 <0f> 0b e8 48 8c e3 fd 48 89 ef e8 c0 91 ff ff 41 89 c4 e9 ae f9 ff [ 91.474215][ T5063] RSP: 0018:ffffc9000348fa28 EFLAGS: 00010286 [ 91.480288][ T5063] RAX: 0000000000000000 RBX: ffff88802131d270 RCX: fffff52000691ef6 [ 91.488292][ T5063] RDX: ffff888020144200 RSI: ffffffff83a26518 RDI: ffffffff8b19f5b0 [ 91.496284][ T5063] RBP: ffff888076f44000 R08: 0000000000000001 R09: 0000000000000000 [ 91.504273][ T5063] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801ff9dd00 [ 91.512284][ T5063] R13: 00000000000013c7 R14: ffff88801f20a618 R15: ffff88801f20a600 [ 91.520268][ T5063] FS: 00005555560f7380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 91.529212][ T5063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.535803][ T5063] CR2: 000055f1e6fe5510 CR3: 000000001f709000 CR4: 00000000003506f0 [ 91.543777][ T5063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.551762][ T5063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.559749][ T5063] Kernel panic - not syncing: Fatal exception [ 91.565984][ T5063] Kernel Offset: disabled [ 91.570290][ T5063] Rebooting in 86400 seconds..