CVE-2024-42079 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce
https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828
https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef
https://lore.kernel.org/linux-cve-announce/2024072955-CVE-2024-42079-a13c@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-42079
https://www.cve.org/CVERecord?id=CVE-2024-42079

History

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-07-29T15:52:41.360Z

Updated: 2024-09-11T17:33:07.945Z

Reserved: 2024-07-29T15:50:41.169Z

Link: CVE-2024-42079

Vulnrichment

Updated: 2024-09-11T12:42:14.691Z

NVD

Status : Analyzed

Published: 2024-07-29T16:15:07.180

Modified: 2024-07-30T18:58:08.977

Link: CVE-2024-42079

Redhat

Severity : Moderate

Publid Date: 2024-07-29T00:00:00Z

Links: CVE-2024-42079 - Bugzilla

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