CVEvulnerability
CVE-2026-98430
- Status
- Received
- Published
- 2026-10-14
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/efa: Keep admin queues alive while IRQ is registered
The management IRQ handler accesses both the admin completion queue and the
async event queue. The driver registered the IRQ before constructing these
queues and destroyed them before freeing the IRQ, so the handler's lifetime
was not contained by the resources it accesses.
Initialize the queues with interrupts masked, request the IRQ, and then
switch to interrupt mode. On removal, reset the device and free the IRQ
before destroying the queues. Also reset the device before destroying the
queues if IRQ registration fails, because the device already has their DMA
addresses.
References
- https://git.kernel.org/stable/c/00f7df59543cce445cfd2f109ace88c17d8aef4d git.kernel.org
- https://git.kernel.org/stable/c/0a8a105978e5ace0d885964317c5aed8ab4c0a0c git.kernel.org
- https://git.kernel.org/stable/c/bc7e64bad96c23fb343f47689670d0037f1a65e7 git.kernel.org
- https://git.kernel.org/stable/c/cf5520d1c931a70ccce0a1a247113bcec47a42be git.kernel.org
- https://git.kernel.org/stable/c/d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0 git.kernel.org
- https://git.kernel.org/stable/c/e08aca85c02ff290f785f07acae758f0daf5f49e git.kernel.org