CVE-2026-46181
Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
28/05/2026
Última modificación:
02/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()<br />
<br />
Sashiko points out the radix_tree itself is RCU safe, but nothing ever<br />
frees the mlx4_srq struct with RCU, and it isn&#39;t even accessed within the<br />
RCU critical section. It also will crash if an event is delivered before<br />
the srq object is finished initializing.<br />
<br />
Use the spinlock since it isn&#39;t easy to make RCU work, use<br />
refcount_inc_not_zero() to protect against partially initialized objects,<br />
and order the refcount_set() to be after the srq is fully initialized.
Impacto
Puntuación base 3.x
7.80
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.9 (incluyendo) | 6.18.30 (excluyendo) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.19 (incluyendo) | 7.0.7 (excluyendo) |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/1e2a44875b6afb4add1115f7f3351dcbeb6f273d
- https://git.kernel.org/stable/c/8b7833f3bce35cb0d01c1503781523c099c675f0
- https://git.kernel.org/stable/c/c9341307ea16b9395c2e4c9c94d8499d91fe31d0
- https://access.redhat.com/errata/RHSA-2026:25120
- https://access.redhat.com/errata/RHSA-2026:25121
- https://access.redhat.com/errata/RHSA-2026:25217
- https://access.redhat.com/errata/RHSA-2026:33900
- https://access.redhat.com/errata/RHSA-2026:34094
- https://access.redhat.com/errata/RHSA-2026:34095
- https://access.redhat.com/errata/RHSA-2026:34443
- https://access.redhat.com/security/cve/CVE-2026-46181
- https://bugzilla.redhat.com/show_bug.cgi?id=2482532
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46181.json



