CVE-2026-43209: minix: Add required sanity checking to minix_check_superblock()
Published May 6, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
minix: Add required sanity checking to minixchecksuperblock()
The fs/minix implementation of the minix filesystem does not currently support any other value for slogzonesize 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 minixblocksneeded() checks for the zmap and imap also to minixchecksuperblock().
This also closes a related syzbot bug report.
Affected Software
14 affected components
Linux Linux kernel (minix filesystem)
Linux Linux kernel>=2.6.12.1<5.10.252
Linux Linux kernel>=5.11<5.15.202
Linux Linux kernel>=5.16<6.1.165
Linux Linux kernel>=6.2<6.6.128
Linux Linux kernel>=6.7<6.12.75
Linux Linux kernel>=6.13<6.18.16
Linux Linux kernel>=6.19<6.19.6
Linux Linux kernel=2.6.12
Linux Linux kernel=2.6.12-rc2
Linux Linux kernel=2.6.12-rc3
Linux Linux kernel=2.6.12-rc4
Linux Linux kernel=2.6.12-rc5
Linux Linux kernel=2.6.12-rc6
Remediation
Event History
May 6, 2026
CVE Published
via MITRE·11:28 AM
Data Sourced
via MITRE·11:28 AM
Description
Data Sourced
via NVD·12:16 PM
RemedyDescriptionSeverityAffected Software