CVE-2024-50152

MEDIUM

Linux Kernel - Use-After-Free in SMB2 Extended Attribute Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning: fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 11.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-415
Status published
Products (13)
linux/Kernel < 6.6.59linux
linux/Kernel 6.7.0 - 6.11.6linux
Linux/Linux < 6.8
Linux/Linux 433042a91f9373241307725b52de573933ffedbf - b1813c220b76f60b1727984794377c4aa849d4c1
Linux/Linux 4f1fffa2376922f3d1d506e49c0fd445b023a28e - 19ebc1e6cab334a8193398d4152deb76019b5d34
Linux/Linux 4f1fffa2376922f3d1d506e49c0fd445b023a28e - c9f758ecf2562dfdd4adf12c22921b5de8366123
Linux/Linux 6.11.6 - 6.11.*
Linux/Linux 6.12
Linux/Linux 6.6.32 - 6.6.59
Linux/Linux 6.6.59 - 6.6.*
... and 3 more
Published Nov 07, 2024
Tracked Since Feb 18, 2026