Linux Kernel batman-adv Integer Overflow on buff_pos
CVE-2026-46198 Published on May 28, 2026
batman-adv: fix integer overflow on buff_pos
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: fix integer overflow on buff_pos
Fixing an integer overflow present in batadv_iv_ogm_send_to_if. The size
check is done using the int type in batadv_iv_ogm_aggr_packet whereas the
buff_pos variable uses the s16 type. This could lead to an out-of-bound
read.
Products Associated with CVE-2026-46198
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Affected Versions
Linux:- Version c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and below f61499359fa529f0d45a53bf7c573a49eb6322e6 is affected.
- Version c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and below 974542d1efc48b7e9fe16184e647615cba39969b is affected.
- Version c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and below bf872db54f91ffe70104b98c20068b2d5910e018 is affected.
- Version c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and below b252797bfced986d6d92ec2f4cfcca842ce8aa78 is affected.
- Version c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and below 0799e5943611006b346b8813c7daf7dd5aa26bfd is affected.
- Version 2.6.38 is affected.
- Before 2.6.38 is unaffected.
- Version 6.6.140, <= 6.6.* is unaffected.
- Version 6.12.90, <= 6.12.* is unaffected.
- Version 6.18.32, <= 6.18.* is unaffected.
- Version 7.0.9, <= 7.0.* is unaffected.
- Version 7.1-rc4, <= * is unaffected.