Medium severity5.5NVD Advisory· Published May 6, 2026· Updated May 11, 2026
CVE-2026-43209
CVE-2026-43209
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.12.1,<5.10.252
- cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc6:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/1efc128ee4adbc23e082715425ff895449d233bcnvdPatch
- git.kernel.org/stable/c/2bb588cede1c1969e49c0a2822c8cb8b346b7682nvdPatch
- git.kernel.org/stable/c/31fefc18096cdc5549cfa54964d90e0b3229aedcnvdPatch
- git.kernel.org/stable/c/66c7c239c65341f99ae388d4d53dc9df2bcb9925nvdPatch
- git.kernel.org/stable/c/8c97a6ddc95690a938ded44b4e3202f03f15078cnvdPatch
- git.kernel.org/stable/c/a051ecf5c5b0387840dc210413ed3bc7fbdaa69cnvdPatch
- git.kernel.org/stable/c/d791c544efd6b9c944b43cf7f502e5bcb02fb941nvdPatch
- git.kernel.org/stable/c/f57ccd4657c7f082dc47e5b9e18a883bb5f9118fnvdPatch
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