CVE-2026-74406: fallo crítico en Linux
vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.8epss 0.5%
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().
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://git.kernel.org/stable/c/022af89207fcc992ec5c712c14e2e018c335eb1ehttps://git.kernel.org/stable/c/08f40c0d23c67c3aa4224c3311e134999c721fb4https://git.kernel.org/stable/c/30a45c0bffdd62350261e2f2689fdba426a33578https://git.kernel.org/stable/c/4a8cde6f7281ea2c4c290f9ad9923b3631defcebhttps://git.kernel.org/stable/c/9c58c729d32e7cea5772cc44929c6cd61e5a31cdhttps://git.kernel.org/stable/c/a3104cc1fed994519538301efcaab175f9af6008https://git.kernel.org/stable/c/ef44dac2a37f86eeae6b88ed10a6d60b35387dfdhttps://git.kernel.org/stable/c/f79c80f173fda9545b220c1f094b65fc06c252d0