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CVE-2026-23001

HIGH

7.8

Descripcion

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

Detalles CVE

Puntuacion CVSS v3.17.8

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado1/25/2026

Ultima modificacion3/25/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

linux:linux_kernel

Debilidades (CWE)

CWE-416

Referencias

https://git.kernel.org/stable/c/15f6faf36e162532bec5cc05eb3fc622108bf2ed(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/232afc74a6dde0fe1830988e5827921f5ec9bb3f(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/484919832e2db6ce1e8add92c469e5d459a516b5(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/6dbead9c7677186f22b7981dd085a0feec1f038e(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/7470a7a63dc162f07c26dbf960e41ee1e248d80e(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/8133e85b8a3ec9f10d861e0002ec6037256e987e(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/8518712a2ca952d6da2238c6f0a16b4ae5ea3f13(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

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