WARNING in gfs2_evict_inode

Status: upstream: reported on 2025/12/08 23:16
Subsystems: gfs2
Labels: prio:low
[Documentation on labels]
Reported-by: syzbot+6a7837644249dbdc1fa0@syzkaller.appspotmail.com
First crash: 301d, last: 6d18h
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ID Workflow Result Correct Bug Created Started Finished Revision
e34e5114 assessment-security DenialOfService: ❌ Exploitable: ❌ FilesystemTrigger: ✅ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ WARNING in gfs2_evict_inode 2026/05/21 03:27 2026/05/21 03:27 2026/05/21 04:25 cf874a1c
b73b253d repro 💥 WARNING in gfs2_evict_inode 2026/03/10 12:22 2026/03/10 12:22 2026/03/10 12:22 5c03941b
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Title Replies (including bot) Last reply
[syzbot] [gfs2?] WARNING in gfs2_evict_inode 0 (1) 2025/12/08 23:16

Sample crash report:
------------[ cut here ]------------
current->flags & PF_MEMALLOC
WARNING: fs/gfs2/super.c:1254 at evict_should_delete fs/gfs2/super.c:1254 [inline], CPU#0: kswapd0/77
WARNING: fs/gfs2/super.c:1254 at gfs2_evict_inode+0x123f/0x1400 fs/gfs2/super.c:1466, CPU#0: kswapd0/77
Modules linked in:
CPU: 0 UID: 0 PID: 77 Comm: kswapd0 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:evict_should_delete fs/gfs2/super.c:1254 [inline]
RIP: 0010:gfs2_evict_inode+0x123f/0x1400 fs/gfs2/super.c:1466
Code: b7 67 f8 ff 45 31 f6 49 bd 00 00 00 00 00 fc ff df 4c 8d 7b 28 e9 02 f7 ff ff e8 cc e2 73 fd e9 91 fe ff ff e8 c2 e2 73 fd 90 <0f> 0b 90 e9 a9 f3 ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 15
RSP: 0018:ffffc90000ae70c0 EFLAGS: 00010293
RAX: ffffffff84540a4e RBX: ffff888011f00660 RCX: ffff88801d330000
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000000000000000
RBP: ffffc90000ae71f0 R08: ffff8880441495e7 R09: 1ffff110088292bc
R10: dffffc0000000000 R11: ffffed10088292bd R12: ffff88801d33002c
R13: 1ffff110023e00d5 R14: ffff88801d0de678 R15: 0000000000000800
FS:  0000000000000000(0000) GS:ffff88808c2bf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8aa04c9a0 CR3: 000000000eb48000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict+0x624/0xb50 fs/inode.c:822
 dispose_list fs/inode.c:864 [inline]
 prune_icache_sb+0x223/0x2d0 fs/inode.c:1010
 super_cache_scan+0x390/0x4a0 fs/super.c:227
 do_shrink_slab+0x6d0/0x10e0 mm/shrinker.c:445
 shrink_slab_memcg mm/shrinker.c:562 [inline]
 shrink_slab+0x838/0x1220 mm/shrinker.c:640
 shrink_one+0x2a2/0x730 mm/vmscan.c:5119
 shrink_many mm/vmscan.c:5180 [inline]
 lru_gen_shrink_node mm/vmscan.c:5258 [inline]
 shrink_node+0x35d0/0x3e30 mm/vmscan.c:6247
 kswapd_shrink_node mm/vmscan.c:7101 [inline]
 balance_pgdat mm/vmscan.c:7279 [inline]
 kswapd+0x185e/0x32c0 mm/vmscan.c:7555
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (28):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/26 02:57 upstream f14572c203d5 a3c7249d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/09/24 12:23 upstream 62f4c998b297 3c3cdf19 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/09/01 01:29 upstream bf1079577a11 00e9c810 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/08/29 05:59 upstream cf72cbb39da8 2f52988a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/08/22 05:40 upstream 818bebeb63dd 1e72964b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/07/29 05:58 upstream 3b5f4b83c4ab 19622d9d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/28 07:28 upstream 780d569e6c4b fb92f11c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/08 07:54 upstream 4549871118cf cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/07 21:11 upstream 33d8d8ec31b5 cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/07 19:16 upstream 33d8d8ec31b5 cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/07 10:57 upstream 8e65320d91cd cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/06/05 13:16 upstream ddd664bbff63 48b6c3fa .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/05/25 06:37 upstream 6a97c4d5262d c69befb3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/05/19 14:57 upstream ab5fce87a778 2aa09d96 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/05/18 00:28 upstream e5d505e3664b de5aae85 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/05/15 16:41 upstream 70eda68668d1 9cd3beaa .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/04/03 07:13 upstream 5619b098e2fb 4440e7c2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/04/01 11:14 upstream dbf00d8d23b4 fb8b2c26 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/03/01 19:39 upstream eb71ab2bf722 43249bac .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/02/25 16:33 upstream 7dff99b35460 c162cde9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/02/25 05:02 upstream 7dff99b35460 787dfb7c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/02/21 07:19 upstream a95f71ad3e2e 6e7b5511 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/02/16 08:19 upstream 26a4cfaff82a 1e62d198 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/02/14 18:10 upstream 770aaedb461a 1e62d198 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/01/30 15:14 upstream 4d310797262f ea6dba22 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2026/01/24 14:47 upstream 62085877ae65 40acda8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2025/12/12 12:06 upstream 187d0801404f d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
2025/12/04 23:13 upstream 6dfafbd0299a d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in gfs2_evict_inode
* Struck through repros no longer work on HEAD.