CVE-2026-43209

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.

The following products are affected by CVE-2026-43209 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-43209.

URL	Resource
https://git.kernel.org/stable/c/1efc128ee4adbc23e082715425ff895449d233bc
https://git.kernel.org/stable/c/2bb588cede1c1969e49c0a2822c8cb8b346b7682
https://git.kernel.org/stable/c/31fefc18096cdc5549cfa54964d90e0b3229aedc
https://git.kernel.org/stable/c/66c7c239c65341f99ae388d4d53dc9df2bcb9925
https://git.kernel.org/stable/c/8c97a6ddc95690a938ded44b4e3202f03f15078c
https://git.kernel.org/stable/c/a051ecf5c5b0387840dc210413ed3bc7fbdaa69c
https://git.kernel.org/stable/c/d791c544efd6b9c944b43cf7f502e5bcb02fb941
https://git.kernel.org/stable/c/f57ccd4657c7f082dc47e5b9e18a883bb5f9118f
https://lore.kernel.org/linux-cve-announce/2026050648-CVE-2026-43209-3ed2@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-43209
https://www.cve.org/CVERecord?id=CVE-2026-43209