VDB
DEBIAN-CVE-2026-23001
DEBIAN-CVE-2026-23001
PUBLISHED
CVSS 7.800000190734863 HIGH
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/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u
Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | *, 6.12.41-1, 6.12.69-1 |
| Debian:14 | linux | 6.14.6-1~exp1, 6.15.2-1~exp1, 6.15.4-1~exp1 |
| Debian:12 | linux | 6.1.52-1, 6.1.64-1, 6.1.66-1 |
| Debian:11 | linux-6.1 | 6.1.159-1, *, 0 |
| Debian:11 | linux | 5.10.226-1, 5.10.234-1, 5.10.237-1 |
Timeline
- Jan 25, 2026 CVE Published
- Apr 28, 2026 CVE Updated