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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50567 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0536f76a2bca83d1a3740517ba22cc93a44b3099 kernel.org
https://git.kernel.org/stable/c/2c575c8905f7a8b32d5611b91856b69bac2a5bf1 kernel.org
https://git.kernel.org/stable/c/3115313cf03113e87c87adee18ee49a20bbdb9ba kernel.org
https://git.kernel.org/stable/c/359616ce587e524107730504891afa4b1a8be58c kernel.org
https://git.kernel.org/stable/c/3e997e4ce8ae7ab89d72334120f6aee49c5bbdbd kernel.org
https://git.kernel.org/stable/c/67973caae78e21ee46a7281aaa8ca364eb9c444f kernel.org
https://git.kernel.org/stable/c/898f706695682b9954f280d95e49fa86ffa55d08 kernel.org
https://git.kernel.org/stable/c/d3b486946a4e62c7ef6023f7d9c1d049051384ba kernel.org
https://git.kernel.org/stable/c/eea87acb6027be3dd4d3c57186bb22800d57fdda kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50567
NVD Published Date:
10/22/2025
NVD Last Modified:
10/22/2025
Source:
kernel.org