CVE-2026-23412
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
02/04/2026
Última modificación:
02/04/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
netfilter: bpf: defer hook memory release until rcu readers are done<br />
<br />
Yiming Qian reports UaF when concurrent process is dumping hooks via<br />
nfnetlink_hooks:<br />
<br />
BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0<br />
Read of size 8 at addr ffff888003edbf88 by task poc/79<br />
Call Trace:<br />
<br />
nfnl_hook_dump_one.isra.0+0xe71/0x10f0<br />
netlink_dump+0x554/0x12b0<br />
nfnl_hook_get+0x176/0x230<br />
[..]<br />
<br />
Defer release until after concurrent readers have completed.
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a
- https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32
- https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9
- https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349
- https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0



