Unrated severityNVD Advisory· Published Dec 24, 2025· Updated Apr 15, 2026
CVE-2025-68350
CVE-2025-68350
Description
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix divide-by-zero in exfat_allocate_bitmap
The variable max_ra_count can be 0 in exfat_allocate_bitmap(), which causes a divide-by-zero error in the subsequent modulo operation (i % max_ra_count), leading to a system crash. When max_ra_count is 0, it means that readahead is not used. This patch load the bitmap without readahead.
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Affected products
4- osv-coords3 versionspkg:linux/kernelpkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-source-longterm&distro=openSUSE%20Tumbleweed
>= 6.18.0, < 6.18.2+ 2 more
- (no CPE)range: >= 6.18.0, < 6.18.2
- (no CPE)range: < 6.18.5-1.1
- (no CPE)range: < 6.18.16-1.1
Patches
Vulnerability mechanics
References
2News mentions
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