CVE-2024-49877 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate

When doing cleanup if flags without OCFS2_BH_READAHEAD it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d43a3988 https://git.kernel.org/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe https://git.kernel.org/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112 https://git.kernel.org/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49 https://git.kernel.org/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9 https://git.kernel.org/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64 https://git.kernel.org/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5