CVE-2026-23001
Published: January 27, 2026Last modified: January 27, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlan_forward_source() Add RCU protection on (struct macvlan_source_entry)->vlan. Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointer before RCU grace period starts. This allows macvlan_forward_source() to skip over entries queued for freeing. Note that macvlan_dev are already RCU protected, as they are embedded in a standard netdev (netdev_priv(ndev)). https: //lore.kernel.org/netdev/[email protected]/T/#u
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.161-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.66-r0) | |
| Stream | linux-lts | Fixed (6.12.67-r0) |
References
- https://git.kernel.org/stable/c/15f6faf36e162532bec5cc05eb3fc622108bf2ed
- https://git.kernel.org/stable/c/232afc74a6dde0fe1830988e5827921f5ec9bb3f
- https://git.kernel.org/stable/c/484919832e2db6ce1e8add92c469e5d459a516b5
- https://git.kernel.org/stable/c/6dbead9c7677186f22b7981dd085a0feec1f038e
- https://git.kernel.org/stable/c/7470a7a63dc162f07c26dbf960e41ee1e248d80e
- https://git.kernel.org/stable/c/8133e85b8a3ec9f10d861e0002ec6037256e987e
- https://git.kernel.org/stable/c/8518712a2ca952d6da2238c6f0a16b4ae5ea3f13