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CVE-2025-39795

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CVE-2025-39795

Published: Sep 12, 2025

Modified: May 12, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
22ada802ede89829dd010a317d9b812b7df7111a - < 418751910044649baa2b424ea31cce3fc4dcc253
affected
22ada802ede89829dd010a317d9b812b7df7111a - < 8b3ce085b52e674290cbfdd07034e7653ffbe4dc
affected
22ada802ede89829dd010a317d9b812b7df7111a - < 31f2f080898e50cbf2bae62d35f9f2a997547b38
affected
22ada802ede89829dd010a317d9b812b7df7111a - < 3b9d69f0e68aa6b0acd9791c45d445154a8c66e9
affected
22ada802ede89829dd010a317d9b812b7df7111a - < 46aa80ef49594ed7de685ecbc673b291e9a2c159

+3 more versions

Linux

Linux

affected
5.10
unaffected
0 - < 5.10
unaffected
5.10.241 - <= 5.10.*
unaffected
5.15.190 - <= 5.15.*
unaffected
6.1.149 - <= 6.1.*

+5 more versions

References

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