What is CVE-2022-50567?

CVE-2022-50567 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.12 onward and patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50567 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50567?

CVE-2022-50567 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2022-50567?

Yes, CVE-2022-50567 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50567 actively exploited?

CVE-2022-50567 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50567

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbAllocAG Syzbot found a crash : UBSAN: shift-out-of-bounds in dbAllocAG. The underlying bug is the missing check of bmp->db_agl2size. The field can be greater than 64 and trigger the shift-out-of-bounds. Fix this bug by adding a check of bmp->db_agl2size in dbMount since this field is used in many following functions. The upper bound for this field is L2MAXL2SIZE - L2MAXAG, thanks for the help of Dave Kleikamp. Note that, for maintenance, I reorganized error handling code of dbMount.

Package Linux Kernel

Published 2025-10-22

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 2.6.12 and later are affected. Fixed in 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 2.6.12

Fixed in

✓ 4.9.337 4.9.x ✓ 4.14.303 4.14.x ✓ 4.19.270 4.19.x ✓ 5.4.229 5.4.x ✓ 5.10.163 5.10.x ✓ 5.15.86 5.15.x ✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50567 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/0536f76a2bca83d1a3740517ba22cc93a44b3099
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2c575c8905f7a8b32d5611b91856b69bac2a5bf1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3115313cf03113e87c87adee18ee49a20bbdb9ba
Patch

9 patch commits total View all on NVD

Frequently asked questions

What is CVE-2022-50567?

CVE-2022-50567 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.12 onward and has been patched in 4.9.337, 4.14.303, 4.19.270 and others. CVE-2022-50567 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2022-50567?

Yes — CVE-2022-50567 has been patched. Fixed versions include 4.9.337, 4.14.303, 4.19.270 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50567 actively exploited?

No — CVE-2022-50567 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.