PT-2025-18563 · Linux+6 · Linux Kernel+6
Published
2022-11-09
·
Updated
2025-07-15
·
CVE-2022-49846
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.1.0-rc2
Description
A slab-out-of-bounds write bug was found in the
udf find entry() function. This issue was reported by Syzbot and is related to a capacity change from 0 to 2048. The bug is caused by a write of size 105 at a specific address, which is located 150 bytes inside a 256-byte region. The affected function is udf find entry(), and the issue is related to the kmalloc-256 cache.Recommendations
To resolve this issue, update the Linux kernel to a version that includes the fix for this bug.
As a temporary workaround, consider restricting access to the
udf find entry() function until a patch is available.Exploit
Fix
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Rocky Linux
Suse