syzbot


kernel BUG in close_ctree

Status: upstream: reported C repro on 2022/11/23 08:10
Subsystems: btrfs (incorrect?)
Reported-by: syzbot+2665d678fffcc4608e18@syzkaller.appspotmail.com
First crash: 129d, last: 16m

Cause bisection: failed (error log, bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in close_ctree C 17 2d16h 17d 0/3 upstream: reported C repro on 2023/03/13 21:19
linux-6.1 kernel BUG in close_ctree C 26 1h51m 19d 0/3 upstream: reported C repro on 2023/03/12 14:15

Sample crash report:
assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4589
------------[ cut here ]------------
kernel BUG at fs/btrfs/messages.c:259!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5079 Comm: syz-executor149 Not tainted 6.3.0-rc2-syzkaller-00235-g8d3c682a5e3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259
Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 79 95 f8 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 80 24 97 8a e8 74 a1 dc fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 53 95 f8 fd 48 89 ef 5d 48
RSP: 0018:ffffc90003e1fb90 EFLAGS: 00010282
RAX: 0000000000000051 RBX: ffff8880173ccd50 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167842c RDI: 0000000000000005
RBP: ffffffff8a949460 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a945da0
R13: 00000000000011ed R14: ffff8880173cc010 R15: ffff8880173cc000
FS:  0000555556bca300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020c77000 CR3: 0000000079c1b000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 close_ctree+0xd06/0xf80 fs/btrfs/disk-io.c:4589
 generic_shutdown_super+0x158/0x480 fs/super.c:491
 kill_anon_super+0x3a/0x60 fs/super.c:1098
 btrfs_kill_super+0x3c/0x50 fs/btrfs/super.c:2133
 deactivate_locked_super+0x98/0x160 fs/super.c:331
 deactivate_super+0xb1/0xd0 fs/super.c:362
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 ptrace_notify+0x118/0x140 kernel/signal.c:2354
 ptrace_report_syscall include/linux/ptrace.h:411 [inline]
 ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline]
 syscall_exit_work kernel/entry/common.c:251 [inline]
 syscall_exit_to_user_mode_prepare+0x129/0x220 kernel/entry/common.c:278
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0xd/0x50 kernel/entry/common.c:296
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f73e5737ea7
Code: 07 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 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffead5dd758 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f73e5737ea7
RDX: 00007ffead5dd817 RSI: 000000000000000a RDI: 00007ffead5dd810
RBP: 00007ffead5dd810 R08: 00000000ffffffff R09: 00007ffead5dd5f0
R10: 0000555556bcb683 R11: 0000000000000202 R12: 00007ffead5de880
R13: 0000555556bcb5f0 R14: 00007ffead5dd780 R15: 000000000000000a
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btrfs_assertfail+0x2c/0x30 fs/btrfs/messages.c:259
Code: 1f 00 41 55 41 89 d5 41 54 49 89 f4 55 48 89 fd e8 79 95 f8 fd 44 89 e9 4c 89 e2 48 89 ee 48 c7 c7 80 24 97 8a e8 74 a1 dc fd <0f> 0b 66 90 66 0f 1f 00 55 48 89 fd e8 53 95 f8 fd 48 89 ef 5d 48
RSP: 0018:ffffc90003e1fb90 EFLAGS: 00010282
RAX: 0000000000000051 RBX: ffff8880173ccd50 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167842c RDI: 0000000000000005
RBP: ffffffff8a949460 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a945da0
R13: 00000000000011ed R14: ffff8880173cc010 R15: ffff8880173cc000
FS:  0000555556bca300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73dd941000 CR3: 0000000079c1b000 CR4: 0000000000350ef0

Crashes (1578):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-kasan-gce-root 2023/03/18 08:16 upstream 8d3c682a5e3d 7939252e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/13 22:12 upstream eeac8ede1755 026e2200 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/02/20 08:02 upstream c9c3395d5e3d bcdf85f8 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/01/24 08:26 upstream 7bf70dbb1882 9dfcf09c .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/01/23 07:17 upstream 2475bf0250de cc0f9968 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2022/12/10 19:09 upstream 3ecc37918c80 67be1ae7 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2022/11/25 17:09 upstream c3eb11fbb826 74a66371 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/03/13 22:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/02/20 04:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 bcdf85f8 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/01/07 21:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ae87308093bc 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/20 02:57 upstream e8d018dd0257 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/01/24 11:57 upstream 7bf70dbb1882 9dfcf09c .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/31 15:06 upstream 62bad54b26db f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/31 13:53 upstream 62bad54b26db f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/31 10:30 upstream 62bad54b26db f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/31 07:16 upstream 8bb95a1662f8 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/31 05:39 upstream 8bb95a1662f8 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/31 00:53 upstream 8bb95a1662f8 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/30 22:41 upstream 8bb95a1662f8 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/30 19:53 upstream 8bb95a1662f8 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/30 14:24 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/30 11:22 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/30 06:37 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/30 02:29 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-qemu-upstream 2023/03/30 00:26 upstream ffe78bbd5121 f325deb0 .config console log report info kernel BUG in close_ctree
ci2-upstream-fs 2023/03/29 22:42 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/29 21:31 upstream ffe78bbd5121 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/29 18:02 upstream fcd476ea6a88 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/29 13:25 upstream fcd476ea6a88 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-qemu-upstream 2023/03/29 10:41 upstream fcd476ea6a88 fc067f05 .config console log report info kernel BUG in close_ctree
ci-upstream-kasan-gce-smack-root 2023/03/29 06:58 upstream fcd476ea6a88 fc067f05 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/28 22:37 upstream fcd476ea6a88 fc067f05 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/28 15:39 upstream 3a93e40326c8 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/28 12:11 upstream 3a93e40326c8 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-smack-root 2023/03/28 10:44 upstream 3a93e40326c8 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/28 08:47 upstream 3a93e40326c8 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-smack-root 2023/03/28 06:26 upstream 3a93e40326c8 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/28 02:39 upstream 91fe204578ba 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/28 01:34 upstream 91fe204578ba 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 17:27 upstream 197b6b60ae7b f8f96aa9 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 16:21 upstream 197b6b60ae7b f8f96aa9 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 15:11 upstream 197b6b60ae7b f8f96aa9 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 05:59 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 02:44 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 01:40 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/27 00:35 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 21:36 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 19:33 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 16:30 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-root 2023/03/26 11:03 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 07:49 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 06:09 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/26 00:17 upstream da8e7da11e4b fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/25 18:58 upstream 65aca32efdcb fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/25 17:15 upstream 65aca32efdcb fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci2-upstream-fs 2023/03/25 15:38 upstream 65aca32efdcb fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-selinux-root 2023/03/25 01:00 upstream 4bae0ad148f4 9700afae .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-kasan-gce-selinux-root 2022/11/21 23:24 upstream eb7081409f94 1c576c23 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-qemu-upstream-386 2023/03/31 12:45 upstream 62bad54b26db f325deb0 .config console log report info kernel BUG in close_ctree
ci-qemu-upstream-386 2023/03/27 03:56 upstream 18940c888c85 fbf0499a .config console log report info kernel BUG in close_ctree
ci-upstream-linux-next-kasan-gce-root 2023/03/30 03:47 linux-next 198925fae644 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-linux-next-kasan-gce-root 2023/03/30 00:57 linux-next 198925fae644 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-linux-next-kasan-gce-root 2023/03/25 22:09 linux-next e5dbf24e8b9e fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/03/28 19:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8d018dd0257 48c74771 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/03/28 14:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8d018dd0257 48c74771 .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
ci-upstream-gce-arm64 2023/03/25 14:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8d018dd0257 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] kernel BUG in close_ctree
* Struck through repros no longer work on HEAD.