CVE-2025-39795 — Uncontrolled Recursion in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.54%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 12
Latest updateMar 25
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5linux/linux22ada802ede89829dd010a317d9b812b7df7111a — 418751910044649baa2b424ea31cce3fc4dcc253+8
Also affects: Debian Linux 11.0
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-x2v6-jx2x-c364: In the Linux kernel, the following vulnerability has been resolved:
block: avoid possible overflow for chunk_sectors check in blk_stack_limits()
In↗2025-09-12
OSV▶
CVE-2025-39795: In the Linux kernel, the following vulnerability has been resolved: block: avoid possible overflow for chunk_sectors check in blk_stack_limits() In bl↗2025-09-12