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.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f Patch
- https://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38 Patch
- https://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9 Patch
- https://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253 Patch
- https://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8 Patch
- https://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159 Patch
- https://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2 Patch
- https://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · linux, debianNVD modified 2026-10-15 02:18
Affected (CPE criteria) 2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References 14
- https://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f Patch
- https://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38 Patch
- https://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9 Patch
- https://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253 Patch
- https://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8 Patch
- https://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159 Patch
- https://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2 Patch
- https://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html