CVE-2023-53394
net/mlx5e: xsk: Fix crash on regular rq reactivation
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix crash on regular rq reactivation When the regular rq is reactivated after the XSK socket is closed it could be reading stale cqes which eventually corrupts the rq. This leads to no more traffic being received on the regular rq and a crash on the next close or deactivation of the rq. Kal Cuttler Conely reported this issue as a crash on the release path when the xdpsock sample program is stopped (killed) and restarted in sequence while traffic is running. This patch flushes all cqes when during the rq flush. The cqe flushing is done in the reset state of the rq. mlx5e_rq_to_ready code is moved into the flush function to allow for this.
INFO
Published Date :
Sept. 18, 2025, 2:15 p.m.
Last Modified :
Jan. 14, 2026, 7:16 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] | ||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Apply the provided patch to flush stale completion queue events.
- Ensure proper handling of XSK socket closure and reactivation.
- Move mlx5e_rq_to_ready code into the flush function.
- Test the fix with sequential stop/start of xdpsock sample.
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-2023-53394.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/02a84eb2af6bea7871cd34264fb27f141f005fd9 | Patch |
| https://git.kernel.org/stable/c/39646d9bcd1a65d2396328026626859a1dab59d7 | Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53394 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-2023-53394
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-2023-53394 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53394 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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H -
Initial Analysis by [email protected]
Dec. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1 up to (excluding) 6.4.10 Added Reference Type kernel.org: https://git.kernel.org/stable/c/02a84eb2af6bea7871cd34264fb27f141f005fd9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/39646d9bcd1a65d2396328026626859a1dab59d7 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 18, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix crash on regular rq reactivation When the regular rq is reactivated after the XSK socket is closed it could be reading stale cqes which eventually corrupts the rq. This leads to no more traffic being received on the regular rq and a crash on the next close or deactivation of the rq. Kal Cuttler Conely reported this issue as a crash on the release path when the xdpsock sample program is stopped (killed) and restarted in sequence while traffic is running. This patch flushes all cqes when during the rq flush. The cqe flushing is done in the reset state of the rq. mlx5e_rq_to_ready code is moved into the flush function to allow for this. Added Reference https://git.kernel.org/stable/c/02a84eb2af6bea7871cd34264fb27f141f005fd9 Added Reference https://git.kernel.org/stable/c/39646d9bcd1a65d2396328026626859a1dab59d7