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Vulnerabilities
Vulnerability

CVE-2026-23388

Reference data from vuln.mlab.sh, coverage from our own index.

CVSS
6.6 Medium
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS
0.12%
Risk score
1.3
Published
2026-03-25
Status
Published

In the Linux kernel, the following vulnerability has been resolved: Squashfs: check metadata block offset is within range Syzkaller reports a "general protection fault in squashfs_copy_data" This is ultimately caused by a corrupted index look-up table, which produces a negative metadata block offset. This is subsequently passed to squashfs_copy_data (via squashfs_read_metadata) where the negative offset causes an out of bounds access. The fix is to check that the offset is within range in squashfs_read_metadata. This will trap this and other cases. A flaw was found in the Linux kernel's Squashfs component. A local attacker could craft a malicious Squashfs image with a corrupted index look-up table, leading to a negative metadata block offset. This negative offset causes an out-of-bounds access when processing the image, resulting in a general protection fault and a system crash, effectively causing a Denial of Service (DoS).

Weaknesses

CWE-1285

Coverage 5

Advisories and references