CVE-2026-52922
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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 785ea1144182c341b8b85b0f8180291839d176a8 < 9bcebaedfb8479cb4affb23c7a0d000ca9a20e73, 785ea1144182c341b8b85b0f8180291839d176a8 < 2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef, 785ea1144182c341b8b85b0f8180291839d176a8 < ce0c381199402a2c58f4599f4f6ed100d872d0da, 785ea1144182c341b8b85b0f8180291839d176a8 < 866ac1d57040ed0b44ca732e3c66b3aa6b93011c … |
| Linux | Linux | — | 3.8, 0 < 3.8, 5.10.258 ≤ 5.10.*, 5.15.209 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73
- https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef
- https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da
- https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c
- https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505
- https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac
- https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93
- https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871