Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 785ea1144182c341b8b85b0f8180291839d176a8 before 9bcebaedfb8479cb4affb23c7a0d000ca9a20e73; affected 785ea1144182c341b8b85b0f8180291839d176a8 before 2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef; affected 785ea1144182c341b8b85b0f8180291839d176a8 before ce0c381199402a2c58f4599f4f6ed100d872d0da; affected 785ea1144182c341b8b85b0f8180291839d176a8 before 866ac1d57040ed0b44ca732e3c66b3aa6b93011c; affected 785ea1144182c341b8b85b0f8180291839d176a8 before 4d420d9ee70a220a2cd95aa0dd2e15acad66a505; affected 785ea1144182c341b8b85b0f8180291839d176a8 before 9cceea8eeba710def2a5707ee00f00c74a9a1cac; affected 785ea1144182c341b8b85b0f8180291839d176a8 before cf48e75fc4fe0d5cc7721c82d454221d01367b93; affected 785ea1144182c341b8b85b0f8180291839d176a8 before 2d8826a2d3657cea66fb0370f9e521575a673871 |
| Linux / Linux | affected 3.8; unaffected 0 before 3.8; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.142 through 6.6.*; unaffected 6.12.92 through 6.12.*; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- 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