CVE-2023-52638
can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
Description
In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock The following 3 locks would race against each other, causing the deadlock situation in the Syzbot bug report: - j1939_socks_lock - active_session_list_lock - sk_session_queue_lock A reasonable fix is to change j1939_socks_lock to an rwlock, since in the rare situations where a write lock is required for the linked list that j1939_socks_lock is protecting, the code does not attempt to acquire any more locks. This would break the circular lock dependency, where, for example, the current thread already locks j1939_socks_lock and attempts to acquire sk_session_queue_lock, and at the same time, another thread attempts to acquire j1939_socks_lock while holding sk_session_queue_lock. NOTE: This patch along does not fix the unregister_netdevice bug reported by Syzbot; instead, it solves a deadlock situation to prepare for one or more further patches to actually fix the Syzbot bug, which appears to be a reference counting problem within the j1939 codebase. [mkl: remove unrelated newline change]
INFO
Published Date :
April 3, 2024, 3:15 p.m.
Last Modified :
Feb. 3, 2025, 4:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Reboot the system after the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-52638.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52638 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-2023-52638
weaknesses.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-52638 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52638 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.
-
Initial Analysis by [email protected]
Feb. 03, 2025
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 Added CWE NIST CWE-667 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.149 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.79 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.6 *cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 No Types Assigned https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 Patch Changed Reference Type https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 No Types Assigned https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 Patch Changed Reference Type https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e No Types Assigned https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e Patch Changed Reference Type https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e No Types Assigned https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e Patch Changed Reference Type https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 No Types Assigned https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 Patch Changed Reference Type https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 No Types Assigned https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 Patch Changed Reference Type https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d No Types Assigned https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d Patch Changed Reference Type https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d No Types Assigned https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d Patch Changed Reference Type https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf No Types Assigned https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf Patch Changed Reference Type https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf No Types Assigned https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 Added Reference https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e Added Reference https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 Added Reference https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d Added Reference https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 03, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock The following 3 locks would race against each other, causing the deadlock situation in the Syzbot bug report: - j1939_socks_lock - active_session_list_lock - sk_session_queue_lock A reasonable fix is to change j1939_socks_lock to an rwlock, since in the rare situations where a write lock is required for the linked list that j1939_socks_lock is protecting, the code does not attempt to acquire any more locks. This would break the circular lock dependency, where, for example, the current thread already locks j1939_socks_lock and attempts to acquire sk_session_queue_lock, and at the same time, another thread attempts to acquire j1939_socks_lock while holding sk_session_queue_lock. NOTE: This patch along does not fix the unregister_netdevice bug reported by Syzbot; instead, it solves a deadlock situation to prepare for one or more further patches to actually fix the Syzbot bug, which appears to be a reference counting problem within the j1939 codebase. [mkl: remove unrelated newline change] Added Reference kernel.org https://git.kernel.org/stable/c/03358aba991668d3bb2c65b3c82aa32c36851170 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/aedda066d717a0b4335d7e0a00b2e3a61e40afcf [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/26dfe112ec2e95fe0099681f6aec33da13c2dd8e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/559b6322f9480bff68cfa98d108991e945a4f284 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6cdedc18ba7b9dacc36466e27e3267d201948c8d [No types assigned]