CVE-2024-50152

MEDIUM

Linux Kernel < 6.6.59 - Double Free

Title source: rule

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 0.0002
EPSS Percentile 3.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-415
Status published

Affected Products (6)

linux/linux_kernel < 6.6.59
linux/linux_kernel
linux/linux_kernel
linux/linux_kernel
linux/Kernel < 6.6.59linux
linux/Kernel < 6.11.6linux

Timeline

Published Nov 07, 2024
Tracked Since Feb 18, 2026