./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2967285571 <...> Warning: Permanently added '10.128.0.37' (ED25519) to the list of known hosts. execve("./syz-executor2967285571", ["./syz-executor2967285571"], 0x7ffce1a2bda0 /* 10 vars */) = 0 brk(NULL) = 0x555581cf8000 brk(0x555581cf8d00) = 0x555581cf8d00 arch_prctl(ARCH_SET_FS, 0x555581cf8380) = 0 set_tid_address(0x555581cf8650) = 5829 set_robust_list(0x555581cf8660, 24) = 0 rseq(0x555581cf8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2967285571", 4096) = 28 getrandom("\x18\xb5\x61\x34\x87\xa3\x9f\x0e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555581cf8d00 brk(0x555581d19d00) = 0x555581d19d00 brk(0x555581d1a000) = 0x555581d1a000 mprotect(0x7f9e03934000, 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.gAu5cq", 0700) = 0 chmod("./syzkaller.gAu5cq", 0777) = 0 chdir("./syzkaller.gAu5cq") = 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 5830 attached [pid 5830] set_robust_list(0x555581cf8660, 24 [pid 5829] <... clone resumed>, child_tidptr=0x555581cf8650) = 5830 [pid 5830] <... set_robust_list resumed>) = 0 [pid 5830] chdir("./0") = 0 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5830] setpgid(0, 0) = 0 [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5830] write(3, "1000", 4) = 4 [pid 5830] close(3) = 0 [pid 5830] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5830] write(1, "executing program\n", 18executing program ) = 18 [pid 5830] memfd_create("syzkaller", 0) = 3 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9dfb400000 [pid 5830] 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 5830] munmap(0x7f9dfb400000, 138412032) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5830] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5830] close(3) = 0 [pid 5830] close(4) = 0 [pid 5830] mkdir("./file1", 0777) = 0 [ 61.710144][ T5830] loop0: detected capacity change from 0 to 32768 [ 61.758506][ T5830] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 61.766996][ T5830] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 61.781632][ T5830] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 61.791407][ T119] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 61.798724][ T119] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 61.835626][ T119] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 36ms [ 61.843510][ T119] gfs2: fsid=syz:syz.0: jid=0: Done [ 61.849683][ T5830] gfs2: fsid=syz:syz.0: first mount done, others may mount [pid 5830] mount("/dev/loop0", "./file1", "gfs2", 0, "quota_quantum=0x0000000000000004,suiddir,quota,barrier,acl,quota=off,discard,noloccookie,quota=on,lo"...) = 0 [pid 5830] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5830] chdir("./file1") = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5830] exit_group(0) = ? [pid 5830] +++ exited with 0 +++ [ 61.951730][ T5830] gfs2: fsid=syz:syz.0: found 1 quota changes --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=30 /* 0.30 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 getdents64(3, 0x555581cf96f0 /* 4 entries */, 32768) = 112 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 [ 62.128418][ T5829] ------------[ cut here ]------------ [ 62.134086][ T5829] WARNING: CPU: 1 PID: 5829 at ./include/linux/backing-dev.h:254 __folio_mark_dirty+0x907/0xed0 [ 62.144519][ T5829] Modules linked in: [ 62.148466][ T5829] CPU: 1 UID: 0 PID: 5829 Comm: syz-executor296 Not tainted 6.12.0-next-20241128-syzkaller #0 [ 62.158719][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.168795][ T5829] RIP: 0010:__folio_mark_dirty+0x907/0xed0 [ 62.174617][ T5829] Code: f9 ff ff e8 db 02 c4 ff 4c 89 f7 48 8b 34 24 e8 ef 25 38 00 eb 87 e8 c8 02 c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 ba 02 c4 ff 90 <0f> 0b 90 e9 40 fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 07 f9 [ 62.194241][ T5829] RSP: 0018:ffffc90002ef7690 EFLAGS: 00010093 [ 62.200321][ T5829] RAX: ffffffff81db7246 RBX: 0000000000000000 RCX: ffff88807ef41e00 [ 62.208294][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 62.216291][ T5829] RBP: ffff888148c94cf8 R08: ffffffff81db6d82 R09: 1ffff1102919299f [ 62.224266][ T5829] R10: dffffc0000000000 R11: ffffed10291929a0 R12: 0000000000000001 [ 62.232241][ T5829] R13: ffff888148c94b88 R14: ffffea0001da8780 R15: 1ffff1102919299f [ 62.240218][ T5829] FS: 0000555581cf8380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 62.249152][ T5829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.255735][ T5829] CR2: 0000555581d016f8 CR3: 0000000076f30000 CR4: 00000000003526f0 [ 62.263718][ T5829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.271692][ T5829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.279668][ T5829] Call Trace: [ 62.282949][ T5829] [ 62.285882][ T5829] ? __warn+0x165/0x4d0 [ 62.290040][ T5829] ? __folio_mark_dirty+0x907/0xed0 [ 62.295240][ T5829] ? report_bug+0x2b3/0x500 [ 62.299765][ T5829] ? __folio_mark_dirty+0x907/0xed0 [ 62.304983][ T5829] ? handle_bug+0x60/0x90 [ 62.309311][ T5829] ? exc_invalid_op+0x1a/0x50 [ 62.313989][ T5829] ? asm_exc_invalid_op+0x1a/0x20 [ 62.319018][ T5829] ? __folio_mark_dirty+0x442/0xed0 [ 62.324218][ T5829] ? __folio_mark_dirty+0x906/0xed0 [ 62.329423][ T5829] ? __folio_mark_dirty+0x907/0xed0 [ 62.334632][ T5829] mark_buffer_dirty+0x290/0x500 [ 62.339579][ T5829] gfs2_unpin+0x129/0xa60 [ 62.343929][ T5829] buf_lo_after_commit+0x14f/0x1a0 [ 62.349047][ T5829] ? __pfx_buf_lo_after_commit+0x10/0x10 [ 62.354695][ T5829] gfs2_log_flush+0x118d/0x2610 [ 62.359565][ T5829] ? __pfx_gfs2_log_flush+0x10/0x10 [ 62.364766][ T5829] ? do_sync+0x9c2/0xc60 [ 62.369006][ T5829] ? do_sync+0x9c2/0xc60 [ 62.373247][ T5829] do_sync+0xa0b/0xc60 [ 62.377322][ T5829] ? __pfx_do_sync+0x10/0x10 [ 62.381920][ T5829] ? do_raw_spin_unlock+0x13c/0x8b0 [ 62.387123][ T5829] gfs2_quota_sync+0x3bc/0x4a0 [ 62.391893][ T5829] gfs2_sync_fs+0x4d/0xc0 [ 62.396228][ T5829] sync_filesystem+0xed/0x230 [ 62.400918][ T5829] generic_shutdown_super+0x72/0x2d0 [ 62.406213][ T5829] kill_block_super+0x44/0x90 [ 62.410899][ T5829] deactivate_locked_super+0xc4/0x130 [ 62.416271][ T5829] cleanup_mnt+0x41f/0x4b0 [ 62.420690][ T5829] ? lockdep_hardirqs_on+0x99/0x150 [ 62.425888][ T5829] task_work_run+0x24f/0x310 [ 62.430516][ T5829] ? __pfx_task_work_run+0x10/0x10 [ 62.435631][ T5829] ? path_umount+0x284/0xf70 [ 62.440274][ T5829] ptrace_notify+0x2d2/0x380 [ 62.444899][ T5829] ? __pfx_ptrace_notify+0x10/0x10 [ 62.450024][ T5829] ? kmem_cache_free+0x195/0x410 [ 62.454984][ T5829] ? __x64_sys_umount+0x123/0x170 [ 62.460033][ T5829] syscall_exit_work+0xc7/0x1d0 [ 62.464891][ T5829] syscall_exit_to_user_mode+0x24a/0x340 [ 62.470528][ T5829] do_syscall_64+0x100/0x230 [ 62.475147][ T5829] ? clear_bhb_loop+0x35/0x90 [ 62.479829][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.485725][ T5829] RIP: 0033:0x7f9e038af347 [ 62.490156][ T5829] 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 [ 62.509768][ T5829] RSP: 002b:00007fffed6ffa48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 62.518188][ T5829] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9e038af347 [ 62.526156][ T5829] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffed6ffb00 [ 62.534130][ T5829] RBP: 00007fffed6ffb00 R08: 0000000000000000 R09: 0000000000000000 [ 62.542101][ T5829] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fffed700b60 [ 62.550071][ T5829] R13: 0000555581cf96c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 62.558057][ T5829] [ 62.561088][ T5829] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 62.568384][ T5829] CPU: 1 UID: 0 PID: 5829 Comm: syz-executor296 Not tainted 6.12.0-next-20241128-syzkaller #0 [ 62.578640][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.588707][ T5829] Call Trace: [ 62.591988][ T5829] [ 62.594919][ T5829] dump_stack_lvl+0x241/0x360 [ 62.599610][ T5829] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.604836][ T5829] ? __pfx__printk+0x10/0x10 [ 62.609446][ T5829] ? vscnprintf+0x5d/0x90 [ 62.613783][ T5829] panic+0x349/0x880 [ 62.617723][ T5829] ? __warn+0x174/0x4d0 [ 62.621892][ T5829] ? __pfx_panic+0x10/0x10 [ 62.626343][ T5829] __warn+0x344/0x4d0 [ 62.630351][ T5829] ? __folio_mark_dirty+0x907/0xed0 [ 62.635586][ T5829] report_bug+0x2b3/0x500 [ 62.639942][ T5829] ? __folio_mark_dirty+0x907/0xed0 [ 62.645154][ T5829] handle_bug+0x60/0x90 [ 62.649310][ T5829] exc_invalid_op+0x1a/0x50 [ 62.653812][ T5829] asm_exc_invalid_op+0x1a/0x20 [ 62.658669][ T5829] RIP: 0010:__folio_mark_dirty+0x907/0xed0 [ 62.664485][ T5829] Code: f9 ff ff e8 db 02 c4 ff 4c 89 f7 48 8b 34 24 e8 ef 25 38 00 eb 87 e8 c8 02 c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 ba 02 c4 ff 90 <0f> 0b 90 e9 40 fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 07 f9 [ 62.684093][ T5829] RSP: 0018:ffffc90002ef7690 EFLAGS: 00010093 [ 62.690162][ T5829] RAX: ffffffff81db7246 RBX: 0000000000000000 RCX: ffff88807ef41e00 [ 62.698140][ T5829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 62.706110][ T5829] RBP: ffff888148c94cf8 R08: ffffffff81db6d82 R09: 1ffff1102919299f [ 62.714080][ T5829] R10: dffffc0000000000 R11: ffffed10291929a0 R12: 0000000000000001 [ 62.722055][ T5829] R13: ffff888148c94b88 R14: ffffea0001da8780 R15: 1ffff1102919299f [ 62.730031][ T5829] ? __folio_mark_dirty+0x442/0xed0 [ 62.735234][ T5829] ? __folio_mark_dirty+0x906/0xed0 [ 62.740448][ T5829] mark_buffer_dirty+0x290/0x500 [ 62.745422][ T5829] gfs2_unpin+0x129/0xa60 [ 62.749762][ T5829] buf_lo_after_commit+0x14f/0x1a0 [ 62.754879][ T5829] ? __pfx_buf_lo_after_commit+0x10/0x10 [ 62.760622][ T5829] gfs2_log_flush+0x118d/0x2610 [ 62.765520][ T5829] ? __pfx_gfs2_log_flush+0x10/0x10 [ 62.770733][ T5829] ? do_sync+0x9c2/0xc60 [ 62.774981][ T5829] ? do_sync+0x9c2/0xc60 [ 62.779224][ T5829] do_sync+0xa0b/0xc60 [ 62.783298][ T5829] ? __pfx_do_sync+0x10/0x10 [ 62.787895][ T5829] ? do_raw_spin_unlock+0x13c/0x8b0 [ 62.793105][ T5829] gfs2_quota_sync+0x3bc/0x4a0 [ 62.797880][ T5829] gfs2_sync_fs+0x4d/0xc0 [ 62.802215][ T5829] sync_filesystem+0xed/0x230 [ 62.806905][ T5829] generic_shutdown_super+0x72/0x2d0 [ 62.812193][ T5829] kill_block_super+0x44/0x90 [ 62.816872][ T5829] deactivate_locked_super+0xc4/0x130 [ 62.822242][ T5829] cleanup_mnt+0x41f/0x4b0 [ 62.826660][ T5829] ? lockdep_hardirqs_on+0x99/0x150 [ 62.831856][ T5829] task_work_run+0x24f/0x310 [ 62.836461][ T5829] ? __pfx_task_work_run+0x10/0x10 [ 62.841578][ T5829] ? path_umount+0x284/0xf70 [ 62.846174][ T5829] ptrace_notify+0x2d2/0x380 [ 62.850771][ T5829] ? __pfx_ptrace_notify+0x10/0x10 [ 62.855881][ T5829] ? kmem_cache_free+0x195/0x410 [ 62.860829][ T5829] ? __x64_sys_umount+0x123/0x170 [ 62.865859][ T5829] syscall_exit_work+0xc7/0x1d0 [ 62.870715][ T5829] syscall_exit_to_user_mode+0x24a/0x340 [ 62.876356][ T5829] do_syscall_64+0x100/0x230 [ 62.881050][ T5829] ? clear_bhb_loop+0x35/0x90 [ 62.885736][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.891628][ T5829] RIP: 0033:0x7f9e038af347 [ 62.896041][ T5829] 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 [ 62.915644][ T5829] RSP: 002b:00007fffed6ffa48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 62.924062][ T5829] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9e038af347 [ 62.932030][ T5829] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffed6ffb00 [ 62.940013][ T5829] RBP: 00007fffed6ffb00 R08: 0000000000000000 R09: 0000000000000000 [ 62.947979][ T5829] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fffed700b60 [ 62.956036][ T5829] R13: 0000555581cf96c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 62.964049][ T5829] [ 62.967337][ T5829] Kernel Offset: disabled [ 62.971829][ T5829] Rebooting in 86400 seconds..