CVE-2026-52922

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.

• linux linux kernel (>= 3.8 < 5.10.258) • linux linux kernel (>= 5.11 < 5.15.209) • linux linux kernel (>= 5.16 < 6.1.175) • linux linux kernel (>= 6.2 < 6.6.142) • linux linux kernel (>= 6.7 < 6.12.92) • linux linux kernel (>= 6.13 < 6.18.34) • linux linux kernel (>= 6.19 < 7.0.11) • linux linux kernel 7.1