./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2851541004 <...> Warning: Permanently added '10.128.1.11' (ED25519) to the list of known hosts. execve("./syz-executor2851541004", ["./syz-executor2851541004"], 0x7ffd9beff310 /* 10 vars */) = 0 brk(NULL) = 0x555587a32000 brk(0x555587a32d00) = 0x555587a32d00 arch_prctl(ARCH_SET_FS, 0x555587a32380) = 0 set_tid_address(0x555587a32650) = 5826 set_robust_list(0x555587a32660, 24) = 0 rseq(0x555587a32ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2851541004", 4096) = 28 getrandom("\x42\x3b\x19\x6e\xd2\x0a\x7f\x6c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555587a32d00 brk(0x555587a53d00) = 0x555587a53d00 brk(0x555587a54000) = 0x555587a54000 mprotect(0x7f3a97cab000, 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.joXf2B", 0700) = 0 chmod("./syzkaller.joXf2B", 0777) = 0 chdir("./syzkaller.joXf2B") = 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 5827 attached [pid 5827] set_robust_list(0x555587a32660, 24 [pid 5826] <... clone resumed>, child_tidptr=0x555587a32650) = 5827 [pid 5827] <... set_robust_list resumed>) = 0 [pid 5827] chdir("./0") = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5827] setpgid(0, 0) = 0 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5827] write(3, "1000", 4) = 4 [pid 5827] close(3) = 0 [pid 5827] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5827] write(1, "executing program\n", 18) = 18 [pid 5827] memfd_create("syzkaller", 0) = 3 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a8f600000 [pid 5827] 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 5827] munmap(0x7f3a8f600000, 138412032) = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5827] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5827] close(3) = 0 [pid 5827] close(4) = 0 [pid 5827] mkdir("./file0", 0777) = 0 [ 64.203826][ T5827] loop0: detected capacity change from 0 to 32768 [ 64.254911][ T5827] gfs2: fsid=nodiscard: Trying to join cluster "lock_nolock", "nodiscard" [ 64.263660][ T5827] gfs2: fsid=nodiscard: Now mounting FS (format 1801)... [ 64.279890][ T5827] gfs2: fsid=nodiscard.0: journal 0 mapped with 3 extents in 0ms [ 64.290630][ T9] gfs2: fsid=nodiscard.0: jid=0, already locked for use [ 64.297634][ T9] gfs2: fsid=nodiscard.0: jid=0: Looking at journal... [ 64.327440][ T9] gfs2: fsid=nodiscard.0: jid=0: Journal head lookup took 29ms [ 64.336575][ T9] gfs2: fsid=nodiscard.0: jid=0: Done [ 64.342892][ T5827] gfs2: fsid=nodiscard.0: first mount done, others may mount [pid 5827] mount("/dev/loop0", "./file0", "gfs2", MS_NODEV|MS_RELATIME, "quota=off,suiddir,nobarrier,meta,noquota,errors=withdraw,discard,noloccookie,statfs_quantum=0x000000"...) = 0 [pid 5827] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5827] chdir("./file0") = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5827] exit_group(0) = ? [pid 5827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- [ 64.446241][ T5827] gfs2: fsid=nodiscard.0: found 1 quota changes 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, 0x555587a336f0 /* 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 [ 64.622985][ T5826] ------------[ cut here ]------------ [ 64.628691][ T5826] WARNING: CPU: 1 PID: 5826 at include/linux/backing-dev.h:254 __folio_mark_dirty+0x907/0xed0 [ 64.638972][ T5826] Modules linked in: [ 64.642877][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor285 Not tainted 6.12.0-rc6-next-20241108-syzkaller #0 [ 64.653446][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 64.663486][ T5826] RIP: 0010:__folio_mark_dirty+0x907/0xed0 [ 64.669284][ T5826] Code: f9 ff ff e8 3b 7d c4 ff 4c 89 f7 48 8b 34 24 e8 7f 29 38 00 eb 87 e8 28 7d c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 1a 7d 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 [ 64.688889][ T5826] RSP: 0018:ffffc90003b3f690 EFLAGS: 00010093 [ 64.694967][ T5826] RAX: ffffffff81dafef6 RBX: 0000000000000000 RCX: ffff888034798000 [ 64.702936][ T5826] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.710979][ T5826] RBP: ffff88802362ccf8 R08: ffffffff81dafa32 R09: 1ffff110046c599f [ 64.718946][ T5826] R10: dffffc0000000000 R11: ffffed10046c59a0 R12: 0000000000000001 [ 64.726910][ T5826] R13: ffff88802362cb88 R14: ffffea0001e2e500 R15: 1ffff110046c599f [ 64.734905][ T5826] FS: 0000555587a32380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 64.744020][ T5826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.750609][ T5826] CR2: 0000555587a3b6f8 CR3: 000000007882e000 CR4: 00000000003526f0 [ 64.758582][ T5826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.766548][ T5826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.774517][ T5826] Call Trace: [ 64.777794][ T5826] [ 64.780733][ T5826] ? __warn+0x168/0x4e0 [ 64.784888][ T5826] ? __folio_mark_dirty+0x907/0xed0 [ 64.790087][ T5826] ? report_bug+0x2b3/0x500 [ 64.794606][ T5826] ? __folio_mark_dirty+0x907/0xed0 [ 64.799817][ T5826] ? handle_bug+0x60/0x90 [ 64.804143][ T5826] ? exc_invalid_op+0x1a/0x50 [ 64.808823][ T5826] ? asm_exc_invalid_op+0x1a/0x20 [ 64.813868][ T5826] ? __folio_mark_dirty+0x442/0xed0 [ 64.819078][ T5826] ? __folio_mark_dirty+0x906/0xed0 [ 64.824278][ T5826] ? __folio_mark_dirty+0x907/0xed0 [ 64.829501][ T5826] mark_buffer_dirty+0x290/0x500 [ 64.834436][ T5826] gfs2_unpin+0x129/0xa60 [ 64.838784][ T5826] buf_lo_after_commit+0x14f/0x1a0 [ 64.843935][ T5826] ? __pfx_buf_lo_after_commit+0x10/0x10 [ 64.849594][ T5826] gfs2_log_flush+0x118d/0x2610 [ 64.854470][ T5826] ? __pfx_gfs2_log_flush+0x10/0x10 [ 64.859673][ T5826] ? do_sync+0x9c2/0xc60 [ 64.863920][ T5826] ? do_sync+0x9c2/0xc60 [ 64.868163][ T5826] do_sync+0xa0b/0xc60 [ 64.872264][ T5826] ? __pfx_do_sync+0x10/0x10 [ 64.876886][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0 [ 64.882098][ T5826] gfs2_quota_sync+0x3bc/0x4a0 [ 64.886872][ T5826] gfs2_sync_fs+0x4d/0xc0 [ 64.891205][ T5826] sync_filesystem+0xed/0x230 [ 64.895886][ T5826] generic_shutdown_super+0x72/0x2d0 [ 64.901170][ T5826] kill_block_super+0x44/0x90 [ 64.905860][ T5826] deactivate_locked_super+0xc4/0x130 [ 64.911266][ T5826] cleanup_mnt+0x41f/0x4b0 [ 64.915706][ T5826] ? lockdep_hardirqs_on+0x99/0x150 [ 64.920939][ T5826] task_work_run+0x24f/0x310 [ 64.925550][ T5826] ? __pfx_task_work_run+0x10/0x10 [ 64.930672][ T5826] ? path_umount+0x284/0xf70 [ 64.935270][ T5826] ptrace_notify+0x2d2/0x380 [ 64.939869][ T5826] ? __pfx_ptrace_notify+0x10/0x10 [ 64.944977][ T5826] ? kmem_cache_free+0x195/0x410 [ 64.949919][ T5826] ? __x64_sys_umount+0x123/0x170 [ 64.954946][ T5826] syscall_exit_work+0xe3/0x220 [ 64.959796][ T5826] syscall_exit_to_user_mode+0x24a/0x340 [ 64.965444][ T5826] do_syscall_64+0x100/0x230 [ 64.970120][ T5826] ? clear_bhb_loop+0x35/0x90 [ 64.974823][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.980724][ T5826] RIP: 0033:0x7f3a97c26307 [ 64.985148][ T5826] 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 [ 65.004747][ T5826] RSP: 002b:00007ffd5b777d68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 65.013155][ T5826] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3a97c26307 [ 65.021171][ T5826] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5b777e20 [ 65.029159][ T5826] RBP: 00007ffd5b777e20 R08: 0000000000000000 R09: 0000000000000000 [ 65.037126][ T5826] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd5b778e80 [ 65.045095][ T5826] R13: 0000555587a336c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 65.053077][ T5826] [ 65.056193][ T5826] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 65.063469][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor285 Not tainted 6.12.0-rc6-next-20241108-syzkaller #0 [ 65.074049][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 65.084152][ T5826] Call Trace: [ 65.087439][ T5826] [ 65.090389][ T5826] dump_stack_lvl+0x241/0x360 [ 65.095102][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 65.100309][ T5826] ? __pfx__printk+0x10/0x10 [ 65.104897][ T5826] ? _printk+0xd5/0x120 [ 65.109059][ T5826] ? __init_begin+0x41000/0x41000 [ 65.114086][ T5826] ? vscnprintf+0x5d/0x90 [ 65.118417][ T5826] panic+0x349/0x880 [ 65.122310][ T5826] ? __warn+0x177/0x4e0 [ 65.126460][ T5826] ? __pfx_panic+0x10/0x10 [ 65.130867][ T5826] ? show_trace_log_lvl+0x3b2/0x410 [ 65.136069][ T5826] __warn+0x34b/0x4e0 [ 65.140044][ T5826] ? __folio_mark_dirty+0x907/0xed0 [ 65.145237][ T5826] report_bug+0x2b3/0x500 [ 65.149560][ T5826] ? __folio_mark_dirty+0x907/0xed0 [ 65.154765][ T5826] handle_bug+0x60/0x90 [ 65.158924][ T5826] exc_invalid_op+0x1a/0x50 [ 65.163449][ T5826] asm_exc_invalid_op+0x1a/0x20 [ 65.168322][ T5826] RIP: 0010:__folio_mark_dirty+0x907/0xed0 [ 65.174140][ T5826] Code: f9 ff ff e8 3b 7d c4 ff 4c 89 f7 48 8b 34 24 e8 7f 29 38 00 eb 87 e8 28 7d c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 1a 7d 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 [ 65.193836][ T5826] RSP: 0018:ffffc90003b3f690 EFLAGS: 00010093 [ 65.199906][ T5826] RAX: ffffffff81dafef6 RBX: 0000000000000000 RCX: ffff888034798000 [ 65.207869][ T5826] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 65.215833][ T5826] RBP: ffff88802362ccf8 R08: ffffffff81dafa32 R09: 1ffff110046c599f [ 65.223797][ T5826] R10: dffffc0000000000 R11: ffffed10046c59a0 R12: 0000000000000001 [ 65.231761][ T5826] R13: ffff88802362cb88 R14: ffffea0001e2e500 R15: 1ffff110046c599f [ 65.239730][ T5826] ? __folio_mark_dirty+0x442/0xed0 [ 65.244925][ T5826] ? __folio_mark_dirty+0x906/0xed0 [ 65.250143][ T5826] mark_buffer_dirty+0x290/0x500 [ 65.255085][ T5826] gfs2_unpin+0x129/0xa60 [ 65.259426][ T5826] buf_lo_after_commit+0x14f/0x1a0 [ 65.264535][ T5826] ? __pfx_buf_lo_after_commit+0x10/0x10 [ 65.270189][ T5826] gfs2_log_flush+0x118d/0x2610 [ 65.275065][ T5826] ? __pfx_gfs2_log_flush+0x10/0x10 [ 65.280260][ T5826] ? do_sync+0x9c2/0xc60 [ 65.284502][ T5826] ? do_sync+0x9c2/0xc60 [ 65.288745][ T5826] do_sync+0xa0b/0xc60 [ 65.292818][ T5826] ? __pfx_do_sync+0x10/0x10 [ 65.297411][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0 [ 65.302609][ T5826] gfs2_quota_sync+0x3bc/0x4a0 [ 65.307372][ T5826] gfs2_sync_fs+0x4d/0xc0 [ 65.311702][ T5826] sync_filesystem+0xed/0x230 [ 65.316373][ T5826] generic_shutdown_super+0x72/0x2d0 [ 65.321651][ T5826] kill_block_super+0x44/0x90 [ 65.326320][ T5826] deactivate_locked_super+0xc4/0x130 [ 65.331695][ T5826] cleanup_mnt+0x41f/0x4b0 [ 65.336104][ T5826] ? lockdep_hardirqs_on+0x99/0x150 [ 65.341295][ T5826] task_work_run+0x24f/0x310 [ 65.345887][ T5826] ? __pfx_task_work_run+0x10/0x10 [ 65.350991][ T5826] ? path_umount+0x284/0xf70 [ 65.355593][ T5826] ptrace_notify+0x2d2/0x380 [ 65.360183][ T5826] ? __pfx_ptrace_notify+0x10/0x10 [ 65.365308][ T5826] ? kmem_cache_free+0x195/0x410 [ 65.370259][ T5826] ? __x64_sys_umount+0x123/0x170 [ 65.375280][ T5826] syscall_exit_work+0xe3/0x220 [ 65.380147][ T5826] syscall_exit_to_user_mode+0x24a/0x340 [ 65.385775][ T5826] do_syscall_64+0x100/0x230 [ 65.390359][ T5826] ? clear_bhb_loop+0x35/0x90 [ 65.395030][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 65.400947][ T5826] RIP: 0033:0x7f3a97c26307 [ 65.405365][ T5826] 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 [ 65.425061][ T5826] RSP: 002b:00007ffd5b777d68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 65.433473][ T5826] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3a97c26307 [ 65.441435][ T5826] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5b777e20 [ 65.449399][ T5826] RBP: 00007ffd5b777e20 R08: 0000000000000000 R09: 0000000000000000 [ 65.457364][ T5826] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd5b778e80 [ 65.465323][ T5826] R13: 0000555587a336c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 65.473298][ T5826] [ 65.476610][ T5826] Kernel Offset: disabled [ 65.481097][ T5826] Rebooting in 86400 seconds..