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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 785ea1144182c341b8b85b0f8180291839d176a8, < 9bcebaedfb8479cb4affb23c7a0d000ca9a20e73; >= 785ea1144182c341b8b85b0f8180291839d176a8, < 2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef; >= 785ea1144182c341b8b85b0f8180291839d176a8, < ce0c381199402a2c58f4599f4f6ed100d872d0da; >= 785ea1144182c341b8b85b0f8180291839d176a8, < 866ac1d57040ed0b44ca732e3c66b3aa6b93011c; >= 785ea1144182c341b8b85b0f8180291839d176a8, < 4d420d9ee70a220a2cd95aa0dd2e15acad66a505; >= 785ea1144182c341b8b85b0f8180291839d176a8, < 9cceea8eeba710def2a5707ee00f00c74a9a1cac; >= 785ea1144182c341b8b85b0f8180291839d176a8, < cf48e75fc4fe0d5cc7721c82d454221d01367b93; >= 785ea1144182c341b8b85b0f8180291839d176a8, < 2d8826a2d3657cea66fb0370f9e521575a673871 |
| Linux | Linux | 3.8 |
References
- https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871Patch
- https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8efPatch
- https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505Patch
- https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011cPatch
- https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73Patch
- https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cacPatch
- https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0daPatch
- https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93Patch
Timeline
- Published
- Jun 24, 2026
- Last modified
- Jul 8, 2026
- NVD status
- Analyzed