CVE-2026-23001
Published: Jan 25, 2026
Modified: May 11, 2026
CVSS v3.1
7.8
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
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 79cf79abce71eb7dbc40e2f3121048ca5405cb47 - < 8133e85b8a3ec9f10d861e0002ec6037256e987eaffected 79cf79abce71eb7dbc40e2f3121048ca5405cb47 - < 484919832e2db6ce1e8add92c469e5d459a516b5affected 79cf79abce71eb7dbc40e2f3121048ca5405cb47 - < 232afc74a6dde0fe1830988e5827921f5ec9bb3faffected 79cf79abce71eb7dbc40e2f3121048ca5405cb47 - < 15f6faf36e162532bec5cc05eb3fc622108bf2edaffected 79cf79abce71eb7dbc40e2f3121048ca5405cb47 - < 8518712a2ca952d6da2238c6f0a16b4ae5ea3f13+2 more versions |
Linux | Linux | affected 3.18unaffected 0 - < 3.18unaffected 5.10.249 - <= 5.10.*unaffected 5.15.199 - <= 5.15.*unaffected 6.1.162 - <= 6.1.*+4 more versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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