CVE-2024-42079
"Linux GFS2 NULL Pointer Dereference Vulnerability"
Description
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).
INFO
Published Date :
July 29, 2024, 4:15 p.m.
Last Modified :
July 30, 2024, 6:58 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2024-42079.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-42079 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-42079 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 30, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce No Types Assigned https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce Patch Changed Reference Type https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828 No Types Assigned https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828 Patch Changed Reference Type https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef No Types Assigned https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef Patch Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.6.37 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.8 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 29, 2024
Action Type Old Value New Value Added Description 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). Added Reference kernel.org https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-42079 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-42079
weaknesses.