In the Linux kernel, the following vulnerability has been resolved:
batman-adv: mcast: avoid OOB read of num_dests header
Before the access to struct batadv_tvlv_mcast_tracker's num_dests, it is
attempted to check whether enough space is actually in the network header.
But instead of using offsetofend() to check for the whole size (2) which
must be accessible, offsetof() of is called. The latter is always returning
0. The comparison with the network header length will always return that
enough data is available - even when only 1 or 0 bytes are accessible.
Instead of using offsetofend(), use the more common check for the whole
header.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-08-15 06:21
Updated : 2026-08-17 06:18
NVD link : CVE-2026-72227
Mitre link : CVE-2026-72227
CVE.ORG link : CVE-2026-72227
JSON object : View
Products Affected
No product.
CWE
No CWE.