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.
Affected versions
Linux kernel versions
6.18
and later are affected. Fixed in
6.18.2,
6.19
and their respective stable series.
References
The following references provide additional information about CVE-2025-68350 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44
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PatchKernel patch commithttps://git.kernel.org/stable/c/d70a5804c563b5e34825353ba9927509df709651
Frequently asked questions
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What is CVE-2025-68350?
CVE-2025-68350 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.2 and 6.19. CVE-2025-68350 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-68350?
Yes — CVE-2025-68350 has been patched. Fixed versions include 6.18.2 and 6.19. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68350 actively exploited?
No — CVE-2025-68350 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.