CVE-2026-23084
be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list
Description
In the Linux kernel, the following vulnerability has been resolved: be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is set to false, the driver may request the PMAC_ID from the firmware of the network card, and this function will store that PMAC_ID at the provided address pmac_id. This is the contract of this function. However, there is a location within the driver where both pmac_id_valid == false and pmac_id == NULL are being passed. This could result in dereferencing a NULL pointer. To resolve this issue, it is necessary to pass the address of a stub variable to the function.
INFO
Published Date :
Feb. 4, 2026, 5:16 p.m.
Last Modified :
March 17, 2026, 9:10 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.
- Apply the be2net driver fix.
- Ensure pmac_id_valid and pmac_id are handled correctly.
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-2026-23084.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23084 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-2026-23084
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-2026-23084 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23084 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]
Mar. 17, 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 Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.199 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.162 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.122 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.68 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.8 *cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.12 up to (excluding) 5.10.249 Added Reference Type kernel.org: https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 06, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344 Added Reference https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1 Added Reference https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 04, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list When the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is set to false, the driver may request the PMAC_ID from the firmware of the network card, and this function will store that PMAC_ID at the provided address pmac_id. This is the contract of this function. However, there is a location within the driver where both pmac_id_valid == false and pmac_id == NULL are being passed. This could result in dereferencing a NULL pointer. To resolve this issue, it is necessary to pass the address of a stub variable to the function. Added Reference https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a Added Reference https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698 Added Reference https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31 Added Reference https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80