CVE-2026-23001 (GCVE-0-2026-23001)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-08-05 12:20
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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
References
Impacted products
Vendor Product Version
Linux Linux Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47
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