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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/1efc128ee4adbc23e082715425ff895449d233bc Patch
- git.kernel.org/stable/c/2bb588cede1c1969e49c0a2822c8cb8b346b7682 Patch
- git.kernel.org/stable/c/31fefc18096cdc5549cfa54964d90e0b3229aedc Patch
- git.kernel.org/stable/c/66c7c239c65341f99ae388d4d53dc9df2bcb9925 Patch
- git.kernel.org/stable/c/8c97a6ddc95690a938ded44b4e3202f03f15078c Patch
- git.kernel.org/stable/c/a051ecf5c5b0387840dc210413ed3bc7fbdaa69c Patch
- git.kernel.org/stable/c/d791c544efd6b9c944b43cf7f502e5bcb02fb941 Patch
- git.kernel.org/stable/c/f57ccd4657c7f082dc47e5b9e18a883bb5f9118f Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
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