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Vulnerabilities
Vulnerability

CVE-2026-43209

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

CVSS
5.5 Medium
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.13%
Risk score
1.5
Published
2026-05-06
Status
Published

In the Linux kernel, the following vulnerability has been resolved: minix: Add required sanity checking to minix_check_superblock() The fs/minix implementation of the minix filesystem does not currently support any other value for s_log_zone_size than 0. This is also the only value supported in util-linux; see mkfs.minix.c line 511. In addition, this patch adds some sanity checking for the other minix superblock fields, and moves the minix_blocks_needed() checks for the zmap and imap also to minix_check_super_block(). This also closes a related syzbot bug report. A flaw was found in the Linux kernel's minix filesystem implementation. The `minix_check_superblock()` function lacks proper sanity checks for superblock fields, including `s_log_zone_size`. This oversight could allow a local attacker to craft a malicious minix filesystem that, when mounted, may lead to a system crash or corruption, resulting in a Denial of Service (DoS).

Weaknesses

CWE-1287

Coverage 4

Advisories and references