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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-68350

exfat: fix divide-by-zero in exfat_allocate_bitmap

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257 to < 88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44affected
  • 9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257 to < d70a5804c563b5e34825353ba9927509df709651affected

Linux Linux

Default version status: affected

  • 6.18affected
  • 0 to < 6.18unaffected
  • 6.18.2 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References