CVE-2026-52922
batman-adv: dat: handle forward allocation error
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.
INFO
Published Date :
June 24, 2026, 7:14 a.m.
Last Modified :
June 24, 2026, 7:14 a.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2026-52922
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Skip forwarding on skb allocation failure.
- Check return value before using skb.
- Update the Linux kernel.
- Consult vendor advisories for specific patches.
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CVE-2026-52922 vulnerability anywhere in the article.