./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2605302208 <...> 1176][ T28] audit: type=1400 audit(1714657834.311:82): avc: denied { siginh } for pid=4919 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 58.430159][ T28] audit: type=1400 audit(1714657835.091:83): avc: denied { read } for pid=4511 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 58.463854][ T28] audit: type=1400 audit(1714657835.091:84): avc: denied { append } for pid=4511 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 [ 58.502120][ T28] audit: type=1400 audit(1714657835.091:85): avc: denied { open } for pid=4511 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 [ 58.525260][ T28] audit: type=1400 audit(1714657835.091:86): avc: denied { getattr } for pid=4511 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 Warning: Permanently added '10.128.1.143' (ED25519) to the list of known hosts. execve("./syz-executor2605302208", ["./syz-executor2605302208"], 0x7fffc7cb4de0 /* 10 vars */) = 0 brk(NULL) = 0x55558da15000 brk(0x55558da15d00) = 0x55558da15d00 arch_prctl(ARCH_SET_FS, 0x55558da15380) = 0 set_tid_address(0x55558da15650) = 5073 set_robust_list(0x55558da15660, 24) = 0 rseq(0x55558da15ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2605302208", 4096) = 28 getrandom("\x03\x7b\x29\x09\x22\x9b\x40\x4a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558da15d00 brk(0x55558da36d00) = 0x55558da36d00 brk(0x55558da37000) = 0x55558da37000 mprotect(0x7f04db296000, 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.Nzd1GU", 0700) = 0 chmod("./syzkaller.Nzd1GU", 0777) = 0 chdir("./syzkaller.Nzd1GU") = 0 mkdir("./0", 0777) = 0 [ 74.702100][ T28] audit: type=1400 audit(1714657851.361:87): avc: denied { execmem } for pid=5073 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 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, child_tidptr=0x55558da15650) = 5074 [ 74.759029][ T28] audit: type=1400 audit(1714657851.421:88): avc: denied { read write } for pid=5073 comm="syz-executor260" 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 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x55558da15660, 24) = 0 [pid 5074] chdir("./0") = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] memfd_create("syzkaller", 0) = 3 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f04d2c00000 [ 74.787261][ T28] audit: type=1400 audit(1714657851.421:89): avc: denied { open } for pid=5073 comm="syz-executor260" 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 [ 74.814309][ T28] audit: type=1400 audit(1714657851.421:90): avc: denied { ioctl } for pid=5073 comm="syz-executor260" 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 5074] 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 5074] munmap(0x7f04d2c00000, 138412032) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5074] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5074] close(3) = 0 [pid 5074] close(4) = 0 [pid 5074] mkdir("./file0", 0777) = 0 [ 75.182279][ T5074] loop0: detected capacity change from 0 to 32768 [ 75.229875][ T28] audit: type=1400 audit(1714657851.891:91): avc: denied { mounton } for pid=5074 comm="syz-executor260" path="/root/syzkaller.Nzd1GU/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 75.273771][ T5074] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 75.282802][ T5074] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 75.301655][ T5074] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 75.312644][ T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 75.320257][ T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 75.395652][ T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 75ms [ 75.406469][ T24] gfs2: fsid=syz:syz.0: jid=0: Done [ 75.412660][ T5074] gfs2: fsid=syz:syz.0: first mount done, others may mount [pid 5074] mount("/dev/loop0", "./file0", "gfs2", MS_STRICTATIME, "") = 0 [pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5074] exit_group(0) = ? [pid 5074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=62 /* 0.62 s */} --- umount2("./0", MNT_FORCE|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, 0x55558da166f0 /* 4 entries */, 32768) = 112 [ 75.788119][ T5074] gfs2: fsid=syz:syz.0: found 2 quota changes [ 75.799287][ T28] audit: type=1400 audit(1714657852.461:92): avc: denied { mount } for pid=5074 comm="syz-executor260" name="/" dev="loop0" ino=3111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 umount2("./0/binderfs", MNT_FORCE|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 [ 75.884960][ T28] audit: type=1400 audit(1714657852.541:93): avc: denied { unmount } for pid=5073 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 75.899274][ T5073] gfs2: fsid=syz:syz.0: original: gfs2_quota_sync+0x419/0x630 [ 75.912703][ T5073] gfs2: fsid=syz:syz.0: pid: 5073 [ 75.917721][ T5073] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 75.924933][ T5073] gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x419/0x630 [ 75.932051][ T5073] gfs2: fsid=syz:syz.0: pid: 5073 [ 75.937068][ T5073] gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1 [ 75.944123][ T5073] 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 [ 75.952958][ T5073] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:5073 [syz-executor260] gfs2_quota_sync+0x419/0x630 [ 75.963964][ T5073] ------------[ cut here ]------------ [ 75.969510][ T5073] kernel BUG at fs/gfs2/glock.c:1560! [ 75.974880][ T5073] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 75.981290][ T5073] CPU: 0 PID: 5073 Comm: syz-executor260 Not tainted 6.9.0-rc6-syzkaller-00053-g0106679839f7 #0 [ 75.991706][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 76.001786][ T5073] RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 [ 76.007272][ T5073] Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 60 ac 59 8b e8 06 e5 b4 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 06 4f ff ff 90 <0f> 0b e8 ae 41 d4 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 bc [ 76.026965][ T5073] RSP: 0018:ffffc9000312f9f8 EFLAGS: 00010286 [ 76.033032][ T5073] RAX: 0000000000000000 RBX: ffff88807a57aee0 RCX: fffff52000625ef0 [ 76.041012][ T5073] RDX: ffff88807f285a00 RSI: ffffffff83b8eafb RDI: ffffffff8b59e3b0 [ 76.048996][ T5073] RBP: ffff8880298ad270 R08: 0000000000000001 R09: 0000000000000000 [ 76.056982][ T5073] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888026141640 [ 76.064958][ T5073] R13: 00000000000013d1 R14: ffff88807a57af60 R15: ffff8880294d8400 [ 76.073026][ T5073] FS: 000055558da15380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 76.081973][ T5073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.088570][ T5073] CR2: 00007ffedba70ff8 CR3: 0000000029308000 CR4: 00000000003506f0 [ 76.096554][ T5073] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.104526][ T5073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.112505][ T5073] Call Trace: [ 76.115797][ T5073] [ 76.118731][ T5073] ? show_regs+0x8c/0xa0 [ 76.122997][ T5073] ? die+0x36/0xa0 [ 76.126728][ T5073] ? do_trap+0x232/0x430 [ 76.130985][ T5073] ? gfs2_glock_nq+0xc7b/0x1cd0 [ 76.135849][ T5073] ? gfs2_glock_nq+0xc7b/0x1cd0 [ 76.140705][ T5073] ? do_error_trap+0xf4/0x230 [ 76.145391][ T5073] ? gfs2_glock_nq+0xc7b/0x1cd0 [ 76.150249][ T5073] ? handle_invalid_op+0x34/0x40 [ 76.155192][ T5073] ? gfs2_glock_nq+0xc7b/0x1cd0 [ 76.160055][ T5073] ? exc_invalid_op+0x2e/0x50 [ 76.164749][ T5073] ? asm_exc_invalid_op+0x1a/0x20 [ 76.169777][ T5073] ? gfs2_dump_glock+0x177b/0x1c80 [ 76.174900][ T5073] ? gfs2_glock_nq+0xc7b/0x1cd0 [ 76.179754][ T5073] ? gfs2_glock_nq+0xc7a/0x1cd0 [ 76.184634][ T5073] do_sync+0x45a/0xd30 [ 76.188715][ T5073] ? __pfx_do_sync+0x10/0x10 [ 76.193312][ T5073] ? gfs2_quota_sync+0x4ad/0x630 [ 76.198257][ T5073] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 76.203630][ T5073] ? qd_check_sync+0x3d8/0x4f0 [ 76.208399][ T5073] gfs2_quota_sync+0x419/0x630 [ 76.213169][ T5073] gfs2_sync_fs+0x44/0xb0 [ 76.217501][ T5073] ? __pfx_gfs2_sync_fs+0x10/0x10 [ 76.222528][ T5073] sync_filesystem+0x10d/0x290 [ 76.227296][ T5073] generic_shutdown_super+0x7e/0x3d0 [ 76.232594][ T5073] kill_block_super+0x3b/0x90 [ 76.237278][ T5073] gfs2_kill_sb+0x360/0x410 [ 76.241879][ T5073] deactivate_locked_super+0xbe/0x1a0 [ 76.247259][ T5073] deactivate_super+0xde/0x100 [ 76.252030][ T5073] cleanup_mnt+0x222/0x450 [ 76.256453][ T5073] task_work_run+0x14e/0x250 [ 76.261043][ T5073] ? __pfx_task_work_run+0x10/0x10 [ 76.266157][ T5073] ptrace_notify+0x10e/0x130 [ 76.270812][ T5073] syscall_exit_to_user_mode_prepare+0x126/0x260 [ 76.277165][ T5073] syscall_exit_to_user_mode+0x11/0x2a0 [ 76.282920][ T5073] do_syscall_64+0xdc/0x260 [ 76.287890][ T5073] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.293822][ T5073] RIP: 0033:0x7f04db210307 [ 76.298242][ T5073] 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 [ 76.317854][ T5073] RSP: 002b:00007ffedba71278 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 76.326305][ T5073] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f04db210307 [ 76.334363][ T5073] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffedba71330 [ 76.343034][ T5073] RBP: 00007ffedba71330 R08: 0000000000000000 R09: 0000000000000000 [ 76.351039][ T5073] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffedba72390 [ 76.359062][ T5073] R13: 000055558da166c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 76.367077][ T5073] [ 76.370097][ T5073] Modules linked in: [ 76.374147][ T5073] ---[ end trace 0000000000000000 ]--- [ 76.379827][ T5073] RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 [ 76.385323][ T5073] Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 60 ac 59 8b e8 06 e5 b4 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 06 4f ff ff 90 <0f> 0b e8 ae 41 d4 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 bc [ 76.405352][ T5073] RSP: 0018:ffffc9000312f9f8 EFLAGS: 00010286 [ 76.411459][ T5073] RAX: 0000000000000000 RBX: ffff88807a57aee0 RCX: fffff52000625ef0 [ 76.419482][ T5073] RDX: ffff88807f285a00 RSI: ffffffff83b8eafb RDI: ffffffff8b59e3b0 [ 76.427473][ T5073] RBP: ffff8880298ad270 R08: 0000000000000001 R09: 0000000000000000 [ 76.435479][ T5073] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888026141640 [ 76.443572][ T5073] R13: 00000000000013d1 R14: ffff88807a57af60 R15: ffff8880294d8400 [ 76.451631][ T5073] FS: 000055558da15380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 76.460691][ T5073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.467279][ T5073] CR2: 00007ffedba70ff8 CR3: 0000000029308000 CR4: 00000000003506f0 [ 76.475280][ T5073] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.483301][ T5073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.491300][ T5073] Kernel panic - not syncing: Fatal exception [ 76.497479][ T5073] Kernel Offset: disabled [ 76.501796][ T5073] Rebooting in 86400 seconds..