cbcvebase.
CVE-2026-46238
published 2026-05-28

CVE-2026-46238: In the Linux kernel, the following vulnerability has been resolved: batman-adv: stop caching unowned originator pointers in BAT IV BAT IV keeps the last-hop…

high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
In the Linux kernel, the following vulnerability has been resolved: batman-adv: stop caching unowned originator pointers in BAT IV BAT IV keeps the last-hop neighbor address in each neigh_node, but some paths also cache an originator pointer derived from a temporary lookup. That pointer is not owned by the neigh_node and may no longer refer to a live originator entry after purge handling runs. Stop storing the auxiliary originator pointer in the BAT IV neighbor state. When BAT IV needs the neighbor originator data, resolve it from the stored neighbor address and drop the reference again after use. [sven: avoid bonding logic for outgoing OGM]

Affected

10 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 86b2b58d7c228d850c8c78e4144e6123e8ed271886b2b58d7c228d850c8c78e4144e6123e8ed2718
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 384e3050a42be9085d50507b4d5f8266a588d742384e3050a42be9085d50507b4d5f8266a588d742
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 8c16c68fdbb69778f8d04f650340c3f4d1518f8e8c16c68fdbb69778f8d04f650340c3f4d1518f8e
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < aafcbaf1159ea224528ca4075d0ba8c10ef374afaafcbaf1159ea224528ca4075d0ba8c10ef374af
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 6e20700f8c524ac379ba8274ff5d453023b7c0066e20700f8c524ac379ba8274ff5d453023b7c006
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 09dc0d1a12222ffca6481916eab3cfea477b962009dc0d1a12222ffca6481916eab3cfea477b9620
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 67bceeb22207f1f5a402973a3a0809e5f2698f3867bceeb22207f1f5a402973a3a0809e5f2698f38
linuxlinux>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < f03e8583532941b07761c5429de7d50766fa3110f03e8583532941b07761c5429de7d50766fa3110
linuxlinux_kernel——