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kernel BUG in gfs2_quota_cleanup (3)

Status: upstream: reported C repro on 2025/11/27 17:40
Subsystems: gfs2
[Documentation on labels]
Reported-by: syzbot+af4d53576692f8956fd6@syzkaller.appspotmail.com
First crash: 182d, last: 2d04h
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision Error
ad42cae4-0197-4a8a-a9bc-1902147db094 assessment-security 💥 kernel BUG in gfs2_quota_cleanup (3) 2026/05/14 13:36 2026/05/14 13:36 2026/05/14 13:37 6ccb967e465e832a7bfd7a116ad00d52a0923a5d failed to run ["git" "pull" "origin" "HEAD" "--depth=1" "--allow-unrelated-histories"]: exit status 128 From /app/workdir/repo/linux * branch HEAD -> FETCH_HEAD Updating files: 20% (18795/93012) Updating files: 21% (19533/93012) Updating files: 22% (20463/93012) Updating files: 23% (21393/93012) Updating files: 24% (22323/93012) Updating files: 25% (23253/93012) Updating files: 26% (24184/93012) Updating files: 27% (25114/93012) Updating files: 28% (26044/93012) Updating files: 29% (26974/93012) Updating files: 30% (27904/93012) Updating files: 30% (27920/93012) Updating files: 31% (28834/93012) Updating files: 32% (29764/93012) Updating files: 33% (30694/93012) error: unable to write file drivers/bluetooth/hci_bcsp.c error: unable to write file drivers/bluetooth/hci_h4.c error: unable to write file drivers/bluetooth/hci_h5.c error: unable to write file drivers/bluetooth/hci_intel.c error: unable to write file drivers/bluetooth/hci_ldisc.c error: unable to write file drivers/bluetooth/hci_ll.c error: unable to write file drivers/bluetooth/hci_mrvl.c error: unable to write file drivers/bluetooth/hci_nokia.c error: unable to write file drivers/bluetooth/hci_qca.c error: unable to write file drivers/bluetooth/hci_serdev.c error: unable to write file drivers/bluetooth/hci_uart.h error: unable to write file drivers/bluetooth/hci_vhci.c error: unable to write file drivers/bluetooth/virtio_bt.c fatal: cannot create directory at 'drivers/bus': No space left on device
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly gfs2 report (May 2026) 0 (1) 2026/05/23 12:32
[syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup (3) 1 (3) 2025/11/29 12:06
[PATCH] gfs2: replace BUG_ON with WARN_ON_ONCE in gfs2_quota_cleanup 2 (2) 2025/11/28 06:07
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in gfs2_quota_cleanup (2) gfs2 -1 2 344d 358d 0/29 auto-obsoleted due to no activity on 2025/09/22 04:04
upstream kernel BUG in gfs2_quota_cleanup gfs2 -1 C done 4 887d 987d 25/29 fixed on 2024/01/30 15:47
▶ ▼ Last patch testing requests (4)
Created Duration User Patch Repo Result
2025/12/08 04:19 18m retest repro linux-next report log
2025/12/08 04:19 27m retest repro linux-next report log
2025/12/08 04:19 54m retest repro linux-next report log
2025/11/29 10:11 1h15m ssranevjti@gmail.com patch upstream OK log

Sample crash report:
R13: 00007f42f6216038 R14: 00007f42f6215fa0 R15: 00007ffe01899008
 </TASK>
gfs2: fsid=syz:syz.0: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:1521!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5536 Comm: syz.0.21 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:gfs2_quota_cleanup+0x75e/0x760 fs/gfs2/quota.c:1520
Code: ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b fd ff ff 4c 89 f7 e8 12 29 0e fe e9 4e fd ff ff e8 e8 34 8c 07 e8 a3 5c a2 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc900037efa40 EFLAGS: 00010293
RAX: ffffffff84234c7d RBX: 0000000000000002 RCX: ffff88803506a4c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc900037efb50 R08: ffff888011bc40af R09: 1ffff11002378815
R10: dffffc0000000000 R11: ffffed1002378816 R12: 1ffff920006fdf4c
R13: ffff888012556800 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f42f6e616c0(0000) GS:ffff88808ca58000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d1b152000 CR3: 0000000011b30000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_make_fs_ro+0x2a0/0x320 fs/gfs2/super.c:568
 gfs2_reconfigure+0x6a5/0xb20 fs/gfs2/ops_fstype.c:1594
 reconfigure_super+0x227/0x8a0 fs/super.c:1080
 do_remount fs/namespace.c:3391 [inline]
 path_mount+0xdc5/0x10e0 fs/namespace.c:4151
 do_mount fs/namespace.c:4172 [inline]
 __do_sys_mount fs/namespace.c:4361 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4338
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f42f5f9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f42f6e61028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f42f6215fa0 RCX: 00007f42f5f9c799
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007f42f6032bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000003376039 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42f6216038 R14: 00007f42f6215fa0 R15: 00007ffe01899008
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_quota_cleanup+0x75e/0x760 fs/gfs2/quota.c:1520
Code: ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b fd ff ff 4c 89 f7 e8 12 29 0e fe e9 4e fd ff ff e8 e8 34 8c 07 e8 a3 5c a2 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc900037efa40 EFLAGS: 00010293
RAX: ffffffff84234c7d RBX: 0000000000000002 RCX: ffff88803506a4c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc900037efb50 R08: ffff888011bc40af R09: 1ffff11002378815
R10: dffffc0000000000 R11: ffffed1002378816 R12: 1ffff920006fdf4c
R13: ffff888012556800 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f42f6e616c0(0000) GS:ffff88808ca58000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d1b152000 CR3: 0000000011b30000 CR4: 0000000000352ef0

Crashes (91):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/04 09:08 upstream 0031c06807cf 4180d919 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2025/11/24 03:11 linux-next d724c6f85e80 4fb8ef37 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2025/11/23 20:32 linux-next d724c6f85e80 4fb8ef37 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2025/11/24 00:30 linux-next d724c6f85e80 4fb8ef37 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/11 18:12 upstream e774d5f1bc27 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/10 23:36 upstream 7c6c4ed80b87 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/09 14:37 upstream 7f87a5ea75f0 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/08 13:45 upstream 3036cd0d3328 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/08 00:30 upstream 3036cd0d3328 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/07 22:12 upstream 3036cd0d3328 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/07 06:57 upstream bfe62a454542 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/03 02:53 upstream 5619b098e2fb 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/02 14:48 upstream 9147566d8016 8b15d4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/01 23:32 upstream 9147566d8016 0285fe54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/01 02:08 upstream dbf00d8d23b4 fb8b2c26 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/30 23:55 upstream 7aaa8047eafd 458630d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/30 18:19 upstream 7aaa8047eafd 458630d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in gfs2_quota_cleanup
2026/03/30 17:04 upstream 7aaa8047eafd 458630d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 15:37 upstream cbfffcca2bf0 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in gfs2_quota_cleanup
2026/05/22 21:53 upstream 6779b50faa56 e16cf9f3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/21 23:44 upstream 758c807bb943 70ae9b03 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/21 12:22 upstream 8bc67e4db64a 747d777d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/18 03:04 upstream e5d505e3664b de5aae85 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/11 21:41 upstream 5d6919055dec d168f260 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/10 05:52 upstream 1bfaee9d3351 29233ece .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/07 18:11 upstream 8ab992f815d6 0211be7b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/04 22:44 upstream c7e4e4d5f7dc a898ba9c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/02 10:37 upstream f1a5e78a55eb a0d91488 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/05/01 18:23 upstream 26fd6bff2c05 753c55b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/04/30 20:30 upstream 08d0d3466664 a7464baf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/04/22 09:50 upstream 6596a02b2078 0b6ab7ec .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/04/02 22:32 upstream 5619b098e2fb 8b15d4ae .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/03/30 14:37 upstream 7aaa8047eafd aa4af680 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/03/29 23:19 upstream a3d97d1d3fa6 dcaebc52 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in gfs2_quota_cleanup
2026/04/15 03:06 linux-next e6efabc0afca e2e976a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/14 17:33 linux-next e6efabc0afca 362d1323 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/14 13:21 linux-next 1c7cc4904160 362d1323 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/07 05:18 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/06 20:55 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/05 07:46 linux-next cc13002a9f98 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/04/02 16:56 linux-next cc13002a9f98 8b15d4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/31 03:11 linux-next cf7c3c02fdd0 d0af506e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/30 02:37 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 12:16 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 08:17 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 05:35 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 05:33 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 05:30 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
2026/03/29 05:30 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in gfs2_quota_cleanup
* Struck through repros no longer work on HEAD.