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BUG: Bad rss-counter state (6)

Status: moderation: reported on 2025/09/23 11:15
Reported-by: syzbot+6f5ac0bf735b8a4007ae@syzkaller.appspotmail.com
First crash: 131d, last: 10d
▶ ▼ 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 3048d 3011d 0/29 closed as invalid on 2017/10/31 09:42
upstream BUG: Bad rss-counter state (2) kernel -1 11 2961d 2963d 0/29 closed as invalid on 2018/02/01 12:07
linux-4.19 BUG: Bad rss-counter state -1 C error 18 1581d 2126d 0/1 upstream: reported C repro on 2020/04/03 02:55
upstream BUG: Bad rss-counter state (4) -1 C done unreliable 124 990d 2081d 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 1783d 1879d 0/1 auto-closed as invalid on 2021/07/10 23:34
linux-4.14 BUG: Bad rss-counter state -1 1 2238d 2238d 0/1 auto-closed as invalid on 2020/04/11 05:38
linux-6.6 BUG: Bad rss-counter state -1 1 131d 131d 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 199d 625d 29/29 fixed on 2025/08/07 23:42
upstream BUG: Bad rss-counter state (3) -1 C unreliable done 438 2375d 2841d 15/29 fixed on 2020/01/31 18:49
android-54 BUG: Bad rss-counter state -1 C 15 256d 2089d 0/2 upstream: reported C repro on 2020/05/11 02:06
android-49 BUG: Bad rss-counter state -1 11325 2247d 2481d 0/3 auto-closed as invalid on 2020/03/03 11:04

Sample crash report:
BUG: Bad rss-counter state mm:ffff88801b484980 type:MM_FILEPAGES val:1 Comm:syz-executor Pid:32615
BUG: Bad rss-counter state mm:ffff88801b484980 type:MM_SWAPENTS val:148 Comm:syz-executor Pid:32615

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2025/11/06 00:27 bpf 44e8f13f07cf a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce BUG: Bad rss-counter state
2026/01/17 01:59 bpf-next 2acbd053c846 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce BUG: Bad rss-counter state
* Struck through repros no longer work on HEAD.