./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1908108218
<...>
[ 91.153392][ T969] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.149' (ED25519) to the list of known hosts.
execve("./syz-executor1908108218", ["./syz-executor1908108218"], 0x7fffaefc95f0 /* 10 vars */) = 0
brk(NULL) = 0x55558da77000
brk(0x55558da77d00) = 0x55558da77d00
arch_prctl(ARCH_SET_FS, 0x55558da77380) = 0
set_tid_address(0x55558da77650) = 5833
set_robust_list(0x55558da77660, 24) = 0
rseq(0x55558da77ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1908108218", 4096) = 28
getrandom("\x15\x36\xaa\xeb\x1f\xce\xb3\x1f", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55558da77d00
brk(0x55558da98d00) = 0x55558da98d00
brk(0x55558da99000) = 0x55558da99000
mprotect(0x7f8c75a7a000, 16384, 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
mkdir("./syzkaller.ToCuEq", 0700) = 0
chmod("./syzkaller.ToCuEq", 0777) = 0
chdir("./syzkaller.ToCuEq") = 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 5834 attached
, child_tidptr=0x55558da77650) = 5834
[pid 5834] set_robust_list(0x55558da77660, 24) = 0
[pid 5834] chdir("./0") = 0
[pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5834] setpgid(0, 0) = 0
[pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5834] write(3, "1000", 4) = 4
[pid 5834] close(3) = 0
[pid 5834] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5834] write(1, "executing program\n", 18) = 18
[pid 5834] memfd_create("syzkaller", 0) = 3
[pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c6d400000
[pid 5834] 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 5834] munmap(0x7f8c6d400000, 138412032) = 0
[pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5834] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5834] close(3) = 0
[pid 5834] close(4) = 0
[pid 5834] mkdir("./file1", 0777) = 0
[ 94.123234][ T5834] loop0: detected capacity change from 0 to 32768
[ 94.180321][ T5834] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 94.189628][ T5834] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 94.208067][ T5834] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms
[ 94.217539][ T3588] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 94.224462][ T3588] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 94.275105][ T3588] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 50ms
[ 94.282982][ T3588] gfs2: fsid=syz:syz.0: jid=0: Done
[ 94.288443][ T5834] gfs2: fsid=syz:syz.0: first mount done, others may mount
[pid 5834] mount("/dev/loop0", "./file1", "gfs2", MS_NODIRATIME|MS_STRICTATIME, "quota_quantum=0x0000000000000004,suiddir,quota,barrier,acl,quota=off,discard,noloccookie,quota=on,lo"...) = 0
[pid 5834] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5834] chdir("./file1") = 0
[pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5834] exit_group(0) = ?
[pid 5834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=44 /* 0.44 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
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
[ 94.450618][ T5834] gfs2: fsid=syz:syz.0: found 1 quota changes
getdents64(3, 0x55558da786f0 /* 4 entries */, 32768) = 112
[ 94.547336][ T5833] ------------[ cut here ]------------
[ 94.552934][ T5833] WARNING: CPU: 1 PID: 5833 at ./include/linux/backing-dev.h:255 __folio_mark_dirty+0xa4f/0xeb0
[ 94.563367][ T5833] Modules linked in:
[ 94.567357][ T5833] CPU: 1 UID: 0 PID: 5833 Comm: syz-executor190 Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 PREEMPT(full)
[ 94.579761][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 94.589807][ T5833] RIP: 0010:__folio_mark_dirty+0xa4f/0xeb0
[ 94.595615][ T5833] Code: 48 c7 c7 c0 3e 74 8b e8 ef d1 8a ff 90 0f 0b 90 90 e9 9e f7 ff ff e8 50 75 c6 ff 90 0f 0b 90 e9 23 fe ff ff e8 42 75 c6 ff 90 <0f> 0b 90 e9 3e fa ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c b6 f7
[ 94.615218][ T5833] RSP: 0018:ffffc90003f27668 EFLAGS: 00010093
[ 94.621288][ T5833] RAX: ffffffff81f97cae RBX: ffffea0001ec53c0 RCX: ffff888031415a00
[ 94.629287][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 94.637248][ T5833] RBP: 0000000000000001 R08: ffff888148c1417f R09: 1ffff1102918282f
[ 94.645212][ T5833] R10: dffffc0000000000 R11: ffffed1029182830 R12: ffff888148c14008
[ 94.653176][ T5833] R13: 1ffff1102918282f R14: 0000000000000000 R15: ffff888148c14178
[ 94.661138][ T5833] FS: 000055558da77380(0000) GS:ffff8881261c7000(0000) knlGS:0000000000000000
[ 94.670060][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 94.676633][ T5833] CR2: 00007ffdd5bd3b38 CR3: 000000007e762000 CR4: 0000000000350ef0
[ 94.684599][ T5833] Call Trace:
[ 94.687865][ T5833]
[ 94.690782][ T5833] ? __pfx_wake_up_bit+0x10/0x10
[ 94.695735][ T5833] mark_buffer_dirty+0x271/0x410
[ 94.700685][ T5833] gfs2_unpin+0x125/0x9c0
[ 94.705038][ T5833] buf_lo_after_commit+0x15e/0x1b0
[ 94.710157][ T5833] ? __pfx_buf_lo_after_commit+0x10/0x10
[ 94.715788][ T5833] gfs2_log_flush+0x10a2/0x24c0
[ 94.720651][ T5833] ? __pfx_gfs2_log_flush+0x10/0x10
[ 94.725851][ T5833] ? do_sync+0x9cd/0xc60
[ 94.730089][ T5833] ? kfree+0x193/0x440
[ 94.734157][ T5833] do_sync+0xa1d/0xc60
[ 94.738254][ T5833] ? __pfx_do_sync+0x10/0x10
[ 94.742861][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.748505][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.754130][ T5833] ? do_raw_spin_unlock+0x122/0x240
[ 94.759323][ T5833] gfs2_quota_sync+0x359/0x460
[ 94.764095][ T5833] gfs2_sync_fs+0x4c/0xb0
[ 94.768422][ T5833] sync_filesystem+0xee/0x230
[ 94.773099][ T5833] generic_shutdown_super+0x6f/0x2c0
[ 94.778376][ T5833] kill_block_super+0x44/0x90
[ 94.783060][ T5833] deactivate_locked_super+0xbc/0x130
[ 94.788427][ T5833] cleanup_mnt+0x425/0x4c0
[ 94.792835][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.798457][ T5833] ? lockdep_hardirqs_on+0x9c/0x150
[ 94.803660][ T5833] task_work_run+0x1d4/0x260
[ 94.808250][ T5833] ? __pfx_task_work_run+0x10/0x10
[ 94.813360][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.818984][ T5833] ? path_umount+0x249/0xf70
[ 94.823571][ T5833] ptrace_notify+0x281/0x2c0
[ 94.828166][ T5833] ? __pfx_ptrace_notify+0x10/0x10
[ 94.833283][ T5833] ? __pfx_path_umount+0x10/0x10
[ 94.838218][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.843859][ T5833] syscall_exit_work+0xc2/0x1d0
[ 94.848722][ T5833] syscall_exit_to_user_mode_prepare+0x6f/0xe0
[ 94.854904][ T5833] syscall_exit_to_user_mode+0x12/0x120
[ 94.860475][ T5833] do_syscall_64+0x103/0x210
[ 94.865081][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.870719][ T5833] ? exc_page_fault+0x91/0x110
[ 94.875478][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.881368][ T5833] RIP: 0033:0x7f8c759f5387
[ 94.885776][ T5833] 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
[ 94.905370][ T5833] RSP: 002b:00007ffdd5bd42e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 94.913778][ T5833] RAX: 0000000000000000 RBX: 0000000000016e42 RCX: 00007f8c759f5387
[ 94.921740][ T5833] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdd5bd43a0
[ 94.929701][ T5833] RBP: 00007ffdd5bd43a0 R08: 0000000000000000 R09: 0000000000000000
[ 94.937662][ T5833] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffdd5bd5410
[ 94.945621][ T5833] R13: 000055558da786c0 R14: 0000000000000001 R15: 431bde82d7b634db
[ 94.953596][ T5833]
[ 94.956600][ T5833] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 94.963864][ T5833] CPU: 1 UID: 0 PID: 5833 Comm: syz-executor190 Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 PREEMPT(full)
[ 94.976265][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 94.986306][ T5833] Call Trace:
[ 94.989570][ T5833]
[ 94.992491][ T5833] dump_stack_lvl+0x99/0x250
[ 94.997080][ T5833] ? __asan_memcpy+0x40/0x70
[ 95.001662][ T5833] ? __pfx_dump_stack_lvl+0x10/0x10
[ 95.006864][ T5833] ? __pfx__printk+0x10/0x10
[ 95.011454][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.017081][ T5833] panic+0x2db/0x790
[ 95.020976][ T5833] ? __pfx_panic+0x10/0x10
[ 95.025387][ T5833] ? show_trace_log_lvl+0x4fb/0x550
[ 95.030611][ T5833] __warn+0x31b/0x4b0
[ 95.034588][ T5833] ? __folio_mark_dirty+0xa4f/0xeb0
[ 95.039781][ T5833] ? __folio_mark_dirty+0xa4f/0xeb0
[ 95.044980][ T5833] report_bug+0x2be/0x4f0
[ 95.049307][ T5833] ? __folio_mark_dirty+0xa4f/0xeb0
[ 95.054508][ T5833] ? __folio_mark_dirty+0xa4f/0xeb0
[ 95.059700][ T5833] ? __folio_mark_dirty+0xa51/0xeb0
[ 95.064894][ T5833] handle_bug+0x84/0x160
[ 95.069137][ T5833] exc_invalid_op+0x1a/0x50
[ 95.073673][ T5833] asm_exc_invalid_op+0x1a/0x20
[ 95.078511][ T5833] RIP: 0010:__folio_mark_dirty+0xa4f/0xeb0
[ 95.084329][ T5833] Code: 48 c7 c7 c0 3e 74 8b e8 ef d1 8a ff 90 0f 0b 90 90 e9 9e f7 ff ff e8 50 75 c6 ff 90 0f 0b 90 e9 23 fe ff ff e8 42 75 c6 ff 90 <0f> 0b 90 e9 3e fa ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c b6 f7
[ 95.103932][ T5833] RSP: 0018:ffffc90003f27668 EFLAGS: 00010093
[ 95.109994][ T5833] RAX: ffffffff81f97cae RBX: ffffea0001ec53c0 RCX: ffff888031415a00
[ 95.117970][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 95.125929][ T5833] RBP: 0000000000000001 R08: ffff888148c1417f R09: 1ffff1102918282f
[ 95.133889][ T5833] R10: dffffc0000000000 R11: ffffed1029182830 R12: ffff888148c14008
[ 95.141852][ T5833] R13: 1ffff1102918282f R14: 0000000000000000 R15: ffff888148c14178
[ 95.149842][ T5833] ? __folio_mark_dirty+0xa4e/0xeb0
[ 95.155062][ T5833] ? __folio_mark_dirty+0xa4e/0xeb0
[ 95.160257][ T5833] ? __pfx_wake_up_bit+0x10/0x10
[ 95.165207][ T5833] mark_buffer_dirty+0x271/0x410
[ 95.170152][ T5833] gfs2_unpin+0x125/0x9c0
[ 95.174493][ T5833] buf_lo_after_commit+0x15e/0x1b0
[ 95.179601][ T5833] ? __pfx_buf_lo_after_commit+0x10/0x10
[ 95.185234][ T5833] gfs2_log_flush+0x10a2/0x24c0
[ 95.190092][ T5833] ? __pfx_gfs2_log_flush+0x10/0x10
[ 95.195287][ T5833] ? do_sync+0x9cd/0xc60
[ 95.199541][ T5833] ? kfree+0x193/0x440
[ 95.203610][ T5833] do_sync+0xa1d/0xc60
[ 95.207694][ T5833] ? __pfx_do_sync+0x10/0x10
[ 95.212291][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.217916][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.223538][ T5833] ? do_raw_spin_unlock+0x122/0x240
[ 95.228733][ T5833] gfs2_quota_sync+0x359/0x460
[ 95.233505][ T5833] gfs2_sync_fs+0x4c/0xb0
[ 95.237832][ T5833] sync_filesystem+0xee/0x230
[ 95.242511][ T5833] generic_shutdown_super+0x6f/0x2c0
[ 95.247787][ T5833] kill_block_super+0x44/0x90
[ 95.252458][ T5833] deactivate_locked_super+0xbc/0x130
[ 95.257819][ T5833] cleanup_mnt+0x425/0x4c0
[ 95.262225][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.267847][ T5833] ? lockdep_hardirqs_on+0x9c/0x150
[ 95.273041][ T5833] task_work_run+0x1d4/0x260
[ 95.277630][ T5833] ? __pfx_task_work_run+0x10/0x10
[ 95.282740][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.288452][ T5833] ? path_umount+0x249/0xf70
[ 95.293041][ T5833] ptrace_notify+0x281/0x2c0
[ 95.297632][ T5833] ? __pfx_ptrace_notify+0x10/0x10
[ 95.302756][ T5833] ? __pfx_path_umount+0x10/0x10
[ 95.307691][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.313342][ T5833] syscall_exit_work+0xc2/0x1d0
[ 95.318196][ T5833] syscall_exit_to_user_mode_prepare+0x6f/0xe0
[ 95.324356][ T5833] syscall_exit_to_user_mode+0x12/0x120
[ 95.329902][ T5833] do_syscall_64+0x103/0x210
[ 95.334532][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.340153][ T5833] ? exc_page_fault+0x91/0x110
[ 95.344913][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 95.350802][ T5833] RIP: 0033:0x7f8c759f5387
[ 95.355208][ T5833] 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
[ 95.374806][ T5833] RSP: 002b:00007ffdd5bd42e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 95.383215][ T5833] RAX: 0000000000000000 RBX: 0000000000016e42 RCX: 00007f8c759f5387
[ 95.391177][ T5833] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdd5bd43a0
[ 95.399137][ T5833] RBP: 00007ffdd5bd43a0 R08: 0000000000000000 R09: 0000000000000000
[ 95.407098][ T5833] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffdd5bd5410
[ 95.415060][ T5833] R13: 000055558da786c0 R14: 0000000000000001 R15: 431bde82d7b634db
[ 95.423037][ T5833]
[ 95.426309][ T5833] Kernel Offset: disabled
[ 95.430636][ T5833] Rebooting in 86400 seconds..