CVE-2025-39795
block: avoid possible overflow for chunk_sectors check in blk_stack_limits()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 12, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
22ada802ede89829dd010a317d9b812b7df7111a < 418751910044649baa2b424ea31cce3fc4dcc253 22ada802ede89829dd010a317d9b812b7df7111a < 8b3ce085b52e674290cbfdd07034e7653ffbe4dc 22ada802ede89829dd010a317d9b812b7df7111a < 31f2f080898e50cbf2bae62d35f9f2a997547b38 22ada802ede89829dd010a317d9b812b7df7111a < 3b9d69f0e68aa6b0acd9791c45d445154a8c66e9 22ada802ede89829dd010a317d9b812b7df7111a < 46aa80ef49594ed7de685ecbc673b291e9a2c159 22ada802ede89829dd010a317d9b812b7df7111a < 5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2 22ada802ede89829dd010a317d9b812b7df7111a < 14beeef4aafecc8a41de534e31fb5be94739392f 22ada802ede89829dd010a317d9b812b7df7111a < 448dfecc7ff807822ecd47a5c052acedca7d09e8
Linux / Linux
5.10
References
git.kernel.org: https://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253 git.kernel.org: https://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc git.kernel.org: https://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38 git.kernel.org: https://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9 git.kernel.org: https://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159 git.kernel.org: https://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2 git.kernel.org: https://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f git.kernel.org: https://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-082556.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-032379.html