CVE-2026-74406

CVE CVE-2026-74406EUVD EUVD-2026-59553Published 2026-08-15T05:59:15.000ZLast changed 2026-08-17T05:46:49.000ZCVSS 9.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive(). udp_tunnel_sock_release() could set sk->sk_user_data to NULL while vxlan_gro_prepare_receive() is running. Let's check if rcu_dereference_sk_user_data() is NULL after skb_gro_remcsum_init().

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5602c48cf87562c2f95b831d690631935e834295 <08f40c0d23c67c3aa4224c3311e134999c721fb4; patch: 6.6.145; 5602c48cf87562c2f95b831d690631935e834295 <ef44dac2a37f86eeae6b88ed10a6d60b35387dfd; 4.7; patch: 7.1.5; 5602c48cf87562c2f95b831d690631935e834295 <9c58c729d32e7cea5772cc44929c6cd61e5a31cd; 5602c48cf87562c2f95b831d690631935e834295 <4a8cde6f7281ea2c4c290f9ad9923b3631defceb; patch: 7.2; patch: 0; patch: 6.1.178; 5602c48cf87562c2f95b831d690631935e834295 <f79c80f173fda9545b220c1f094b65fc06c252d0; 5602c48cf87562c2f95b831d690631935e834295 <30a45c0bffdd62350261e2f2689fdba426a33578; patch: 6.12.97; patch: 6.18.40

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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