CVE-2026-43088

01/תיאור (מקור, אנגלית)

In the Linux kernel, the following vulnerability has been resolved: net: af_key: zero aligned sockaddr tail in PF_KEY exports PF_KEY export paths use `pfkey_sockaddr_size()` when reserving sockaddr payload space, so IPv6 addresses occupy 32 bytes on the wire. However, `pfkey_sockaddr_fill()` initializes only the first 28 bytes of `struct sockaddr_in6`, leaving the final 4 aligned bytes uninitialized. Not every PF_KEY message is affected. The state and policy dump builders already zero the whole message buffer before filling the sockaddr payloads. Keep the fix to the export paths that still append aligned sockaddr payloads with plain `skb_put()`: - `SADB_ACQUIRE` - `SADB_X_NAT_T_NEW_MAPPING` - `SADB_X_MIGRATE` Fix those paths by clearing only the aligned sockaddr tail after `pfkey_sockaddr_fill()`.

02/מוצרים מושפעים

linux: linux kernel

03/קישורים8

• git.kernel.org/stable/c/11cbf294bac623bd57296f231199193087f57b4a Patch
• git.kernel.org/stable/c/2e74f974359b5382ecbe8536abbb5b837eb6c724 Patch
• git.kernel.org/stable/c/426c355742f02cf743b347d9d7dbdc1bfbfa31ef Patch
• git.kernel.org/stable/c/edd446ee7cd3d02cac246168063d5b3e9ea68460 Patch
• git.kernel.org/stable/c/3c19cb8a84ef709d57943bd6664cf31cb91ba6ec
• git.kernel.org/stable/c/6df5f90175fe4c584e9960b6c00131a7bf2b5399
• git.kernel.org/stable/c/746ee79d9e140f0e9e56f5123eaa88ad9332de7b
• git.kernel.org/stable/c/e357c3cf8a44d4ec1f49ad6981e4ab9704354347