CVE-2026-74406
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
15/08/2026
Last modified:
15/08/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().<br />
<br />
udp_tunnel_sock_release() could set sk->sk_user_data to NULL<br />
while vxlan_gro_prepare_receive() is running.<br />
<br />
Let&#39;s check if rcu_dereference_sk_user_data() is NULL after<br />
skb_gro_remcsum_init().
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/08f40c0d23c67c3aa4224c3311e134999c721fb4
- https://git.kernel.org/stable/c/30a45c0bffdd62350261e2f2689fdba426a33578
- https://git.kernel.org/stable/c/4a8cde6f7281ea2c4c290f9ad9923b3631defceb
- https://git.kernel.org/stable/c/9c58c729d32e7cea5772cc44929c6cd61e5a31cd
- https://git.kernel.org/stable/c/ef44dac2a37f86eeae6b88ed10a6d60b35387dfd
- https://git.kernel.org/stable/c/f79c80f173fda9545b220c1f094b65fc06c252d0