CVE-2025-39795None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: block: avoid possible overflow for chunk_sectors check in blk_stack_limits() In blk_stack_limits(), we check that the t->chunk_sectors value is a multiple of the t->ph…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
block: avoid possible overflow for chunk_sectors check in blk_stack_limits()
In blk_stack_limits(), we check that the t->chunk_sectors value is a multiple of the t->physical_block_size value.
However, by finding the chunk_sectors value in bytes, we may overflow the unsigned int which holds chunk_sectors, so change the check to be based on sectors.
Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 418751910044649baa2b424ea31cce3fc4dcc253Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 8b3ce085b52e674290cbfdd07034e7653ffbe4dcLinux >= 22ada802ede89829dd010a317d9b812b7df7111a < 31f2f080898e50cbf2bae62d35f9f2a997547b38Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 3b9d69f0e68aa6b0acd9791c45d445154a8c66e9Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 46aa80ef49594ed7de685ecbc673b291e9a2c159Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2Linux >= 22ada802ede89829dd010a317d9b812b7df7111a < 14beeef4aafecc8a41de534e31fb5be94739392fLinux >= 22ada802ede89829dd010a317d9b812b7df7111a < 448dfecc7ff807822ecd47a5c052acedca7d09e8Linux 5.10Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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