batman-adv: fix OOB read/write in network-coding decode
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: fix OOB read/write in network-coding decode
batadv_nc_skb_decode_packet() trusts coded_len and checks only against
skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing
payload headroom, and the source skb length is not verified, allowing an
out-of-bounds read and a small out-of-bounds write.
Validate that coded_len fits within the payload area of both destination
and source sk_buffs before XORing.
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-089022.htmlhttps://git.kernel.org/stable/c/1e36c6c8dc8023b4bbe9a16e819f9998b9b6a183https://git.kernel.org/stable/c/20080709457bc1e920eb002483d7d981d9b2ac1chttps://git.kernel.org/stable/c/30fc47248f02b8a14a61df469e1da4704be1a19fhttps://git.kernel.org/stable/c/5d334bce9fad58cf328d8fa14ea1fff855819863https://git.kernel.org/stable/c/a67c6397fcb7e842d3c595243049940970541c48https://git.kernel.org/stable/c/bb37252c9af1cb250f34735ee98f80b46be3cef1https://git.kernel.org/stable/c/d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087https://git.kernel.org/stable/c/dce6c2aa70e94c04c523b375dfcc664d7a0a560ahttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html