CVEvulnerability
CVE-2026-93278
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
cvm_oct_rx_shutdown calls free_irq and netif_napi_del without
disabling the napi instance first. As the free_irq only waits
for completion of hard interrupt handlers, the napi poll
function could still be active. If cvm_oct_remove proceeds to
free the plat structure (which holds the NAPI instances), the
active poll function will access freed memory, resulting in a
use-after-free crash.
References
- https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb git.kernel.org
- https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a git.kernel.org
- https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1 git.kernel.org
- https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554 git.kernel.org
- https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d git.kernel.org
- https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898 git.kernel.org
- https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4 git.kernel.org