CVE-2025-68350
exfat: fix divide-by-zero in exfat_allocate_bitmap
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257 < 88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44 9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257 < d70a5804c563b5e34825353ba9927509df709651
Linux / Linux
6.18