PT-2025-20531 · Linux+6 · Linux Kernel+6
Published
2025-03-19
·
Updated
2026-05-26
·
CVE-2025-37879
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue concerns the Linux kernel's handling of read/write replies in the 9p/net module. Specifically, in
p9 client write() and p9 client read once(), if a server incorrectly replies with a negative write/read count, it could lead to improper handling due to signed variables. The problem is resolved by making these variables unsigned. This prevents a potential null pointer dereference.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Out of bounds Read
NULL Pointer Dereference
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu