syzbot


BUG: Bad rss-counter state (6)

Status: upstream: reported on 2026/02/08 00:32
Subsystems: mm
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+5981772e2b70777a3b01@syzkaller.appspotmail.com
First crash: 278d, last: 7d14h
✨ AI Jobs (2)
ID Workflow Result Correct Bug Created Started Finished Revision Error
162b8916-b9b3-4de8-abfa-fa1dbb39911b assessment-security DenialOfService: ❌ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ BUG: Bad rss-counter state (6) 2026/06/02 15:19 2026/06/02 15:19 2026/06/02 16:26 62fe15281f5011cd203d8845b8767b10e7443aa5

			
		
8051bfe1-e6b9-42df-8bbe-c141911011c3 assessment-security 💥 BUG: Bad rss-counter state (6) 2026/05/25 14:01 2026/05/25 14:01 2026/05/25 15:53 c69befb30ac10e158cc9d1557b508ee3f0eca1de
tool codeexpert failed: error: agent reached max iterations limit (250)
args: map[Question:Do you know about a kernel bug that causes "BUG: Bad rss-counter state" with type:MM_FILEPAGES val:1 and type...
truncated to first 200 bytes; open job for full error
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] BUG: Bad rss-counter state (6) 0 (1) 2026/02/08 00:32
Similar bugs (11)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: Bad rss-counter state -1 syz 20 3195d 3158d 0/29 closed as invalid on 2017/10/31 09:42
upstream BUG: Bad rss-counter state (2) kernel -1 11 3108d 3110d 0/29 closed as invalid on 2018/02/01 12:07
linux-4.19 BUG: Bad rss-counter state -1 C error 18 1728d 2274d 0/1 upstream: reported C repro on 2020/04/03 02:55
upstream BUG: Bad rss-counter state (4) -1 C done unreliable 124 1137d 2228d 0/29 auto-obsoleted due to no activity on 2023/08/23 09:04
linux-4.14 BUG: Bad rss-counter state (2) -1 4 1930d 2026d 0/1 auto-closed as invalid on 2021/07/10 23:34
linux-4.14 BUG: Bad rss-counter state -1 1 2385d 2385d 0/1 auto-closed as invalid on 2020/04/11 05:38
linux-6.6 BUG: Bad rss-counter state -1 1 278d 278d 0/2 auto-obsoleted due to no activity on 2025/12/28 14:06
upstream BUG: Bad rss-counter state (5) mm -1 C done 2365 346d 772d 29/29 fixed on 2025/08/07 23:42
upstream BUG: Bad rss-counter state (3) -1 C unreliable done 438 2522d 2988d 15/29 fixed on 2020/01/31 18:49
android-54 BUG: Bad rss-counter state -1 C 15 403d 2236d 0/2 upstream: reported C repro on 2020/05/11 02:06
android-49 BUG: Bad rss-counter state -1 11325 2394d 2628d 0/3 auto-closed as invalid on 2020/03/03 11:04

Sample crash report:
BUG: Bad rss-counter state mm:ffff88809d61a4c0 type:MM_FILEPAGES val:1 Comm:syz.0.18470 Pid:4124
BUG: Bad rss-counter state mm:ffff88809d61a4c0 type:MM_SWAPENTS val:32 Comm:syz.0.18470 Pid:4124

Crashes (108):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/27 15:05 upstream a75cb869a8cc 2cf092b8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: Bad rss-counter state
2026/02/12 21:48 upstream 37a93dd5c49b 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/12 06:48 upstream 1e83ccd5921a 76a109e2 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/12 00:57 upstream 1e83ccd5921a 76a109e2 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 23:44 upstream 1e83ccd5921a 76a109e2 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 21:58 upstream 192c0159402e 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 18:41 upstream 192c0159402e 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 17:38 upstream 192c0159402e 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 17:25 upstream 192c0159402e 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 15:57 upstream 192c0159402e 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/11 04:50 upstream dc855b77719f 441e25b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 18:12 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:37 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:36 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:34 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:32 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:31 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:29 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:28 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:25 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:24 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:22 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:20 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:19 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:17 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:16 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:14 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:13 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:11 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:10 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:08 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:07 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:05 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:03 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:02 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 17:00 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 16:59 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 16:57 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 16:56 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 16:54 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/02/10 16:53 upstream 72c395024dac a076df6f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: Bad rss-counter state
2026/04/15 16:49 upstream 1f5ffc672165 c441f497 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: Bad rss-counter state
2026/06/07 05:28 upstream 979c294509f9 cc095639 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: Bad rss-counter state
2026/01/19 02:14 upstream e84d960149e7 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: Bad rss-counter state
2025/09/19 11:06 upstream 097a6c336d00 67c37560 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: Bad rss-counter state
2026/06/17 13:25 upstream 66affa37cfac 62cc6db3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: Bad rss-counter state
2026/05/29 15:51 upstream 8fde5d1d47f6 6b4a8443 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: Bad rss-counter state
2026/05/14 05:25 upstream e1914add2799 6ccb967e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: Bad rss-counter state
2026/04/26 09:39 upstream 897d54018cc9 9c2d0995 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: Bad rss-counter state
2026/06/01 18:52 net f3be0c984ecb 8d8eeb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: Bad rss-counter state
2026/05/25 09:05 net 87a1e0fe7776 c69befb3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: Bad rss-counter state
2026/05/24 01:41 net 87a1e0fe7776 c69befb3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: Bad rss-counter state
2026/04/29 15:51 bpf b5c111f4967b 804ea88f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce BUG: Bad rss-counter state
2026/06/10 06:26 net-next 3abbe3023144 34dab4be .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: Bad rss-counter state
2026/03/21 22:44 bpf-next 61bc84608159 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce BUG: Bad rss-counter state
2026/03/15 19:10 bpf-next bb41fcef5c79 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce BUG: Bad rss-counter state
2026/03/13 12:57 linux-next 5c9e55fecf93 2f7f359d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce BUG: Bad rss-counter state
* Struck through repros no longer work on HEAD.