CVE-2026-64018
Gravedad CVSS v3.1:
CRÍTICA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
19/07/2026
Última modificación:
30/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
net: mana: validate rx_req_idx to prevent out-of-bounds array access<br />
<br />
In mana_hwc_rx_event_handler(), rx_req_idx is derived from<br />
sge->address in DMA-coherent memory. In Confidential VMs<br />
(SEV-SNP/TDX), this memory is shared unencrypted and HW can modify<br />
WQE contents at any time. No bounds check exists on rx_req_idx,<br />
which can lead to an out-of-bounds access into reqs[].<br />
<br />
Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before<br />
using it to index the reqs[] array.
Impacto
Puntuación base 3.x
9.30
Gravedad 3.x
CRÍTICA
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01
- https://git.kernel.org/stable/c/355e9f2b2a7887ca38100127989af3e422ba71d0
- https://git.kernel.org/stable/c/5ddc715324badd7f2641bc177db1d027b402adae
- https://git.kernel.org/stable/c/763a372d344fb12fae566d36ddb46e92454ad58c
- https://git.kernel.org/stable/c/b809d0409991b75a6cff846a5ac27c3062953f84
- https://git.kernel.org/stable/c/fa627a5eaa83fc0261f44ef3769693b886ca6e27
- https://git.kernel.org/stable/c/ff1d5af207bcea857d45fe81505f1bc4b29eaef0



