PT-2024-7852 · Linux+4 · Linux Kernel+4
Oliver Sang
·
Published
2024-04-09
·
Updated
2025-11-27
·
CVE-2024-26998
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The vulnerability is related to the serial component of the Linux kernel and involves a NULL pointer dereference in the
uart tty port shutdown() function. This can lead to a denial of service. The issue arises because the PM or other timer-based callbacks may still trigger after the circular buffer is NULLified, and the serial code is inconsistent in checking the buffer state. The proposed change aims to prevent asynchronous calls to dereference a NULL pointer by aligning the buffer pointer and head-tail positions.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
LPE
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Ubuntu