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CVE-2025-68350

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:548291a51ea57f35ae82b52f8f427b5d19e7082a83a891161c7fbdcf363a1e7f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/exfat/balloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/exfat/balloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44","status":"affected","version":"9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257","versionType":"git"},{"lessThan":"d70a5804c563b5e34825353ba9927509df709651","status":"affected","version":"9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/exfat/balloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/exfat/balloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44","status":"affected","version":"9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257","versionType":"git"},{"lessThan":"d70a5804c563b5e34825353ba9927509df709651","status":"affected","version":"9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d70a5804c563b5e34825353ba9927509df709651"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a0c74c5c43fc217523bc3bee4ea4417891c251d07b4a2efb21aa123f33c6e7c · sha256:7044936afe98abfb… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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