CVE-2026-52922 Details
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: handle forward allocation error batadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb for each DHT candidate, but does not check the return value before passing it to batadv_send_skb_prepare_unicast_4addr(). That function dereferences the skb unconditionally, so a failed allocation triggers a NULL pointer dereference. Skip forwarding to the current DHT candidate on allocation failure.
A vulnerability in the Linux kernel's batman-adv module can lead to a NULL pointer dereference. This issue arises in the 'distributed ARP table' handling, specifically within the 'batadv_dat_forward_data()' function. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. The specific commit addressing this issue is '2d8826a2d3657cea66fb0370f9e521575a673871', which is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef | kernel.org | Patch |
| https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505 | kernel.org | Patch |
| https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c | kernel.org | Patch |
| https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac | kernel.org | Patch |
| https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da | kernel.org | Patch |
| https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.8, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.142 >= 6.7, < 6.12.92 >= 6.13, < 6.18.34 >= 6.19, < 7.0.11 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 28, 2026 | CVE Modified | kernel.org |
| Jun 24, 2026 | New CVE Received | kernel.org |