Bug 2249269

Summary: Buffer overflows on kernel 6.5.x
Product: [Fedora] Fedora Reporter: Stéphane Daviet <stephane.daviet>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 39CC: acaringi, adscvr, airlied, alciregi, bskeggs, hdegoede, hpa, jarod, josef, kernel-maint, lgoncalv, linville, masami256, mchehab, ptalbert, steved
Target Milestone: ---Keywords: Regression, Upgrades
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
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Clone Of: Environment:
Last Closed: 2023-11-12 14:45:20 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
journalctl --no-hostname -k -b-1 none

Description Stéphane Daviet 2023-11-11 20:35:02 UTC 
1. Description of problem:

After updating to the 6.5.x kernel, computer cannot boot on any 6.5.x version. No problem when booting back to the 6.4.15 one. Hardware system diagnostic and everything is right. Upgrading to Fedora 39 doesn't solve the problem.

Two error messages in the logs BUG: Bad rss-counter state mm:00000000a3d60a4f type:MM_ANONPAGES val:1 and kernel BUG at lib/string_helpers.c:1031!.

2. Version-Release number of the kernel: kernel-6.5.11-300.fc39

3. Kernel version on which the issue first appeared: kernel-6.5.6-200.fc38

4. Steps to reproduce the issue:
  1. Boot under any of the 6.5.x kernels series,
  2. The issue occurs in the boot process.

5. Occurrence of the issue on the latest Rawhide kernel: Not happening on 6.7.0-0.rc0.20231109git6bc986ab839c.12.fc40.x86_64

6. Are you running any modules that not shipped with directly Fedora's kernel? Not in my knowledge

7. Logs provided as further attachment.

Reproducible: Always
Comment 1 Stéphane Daviet 2023-11-11 20:37:27 UTC 
Created attachment 1998708 [details]
journalctl --no-hostname -k -b-1
Comment 2 Stéphane Daviet 2023-11-12 14:45:20 UTC 
As pointed in the Fedora forum, my kernel was tainted by the mfe_aac_1007141249 module (Trellix aka McAfee antivirus kernel module, our corporate antivirus). Blacklisting the module gives a temporary fix to this booting problem.