CVE-2026-46198
kernel: batman-adv: fix integer overflow on buff_pos
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Severity
ModerateRed Hat Product Security
CVSS
Review impact separately from score.
Published · May 28, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's batman-adv component. An integer overflow in the batadv_iv_ogm_send_to_if function, specifically with the buff_pos variable, can lead to an out-of-bound read. This occurs because the size check uses an int type while buff_pos uses an s16 type, causing a mismatch that could be exploited by a local attacker.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-190 · Integer Overflow or Wraparound