CVE-2026-93278staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3368c784bcf77124aaf39372e627016c36bd4472 before 158389d7af04bbf0664d91c2ce31fcc9eeace1eb; from 3368c784bcf77124aaf39372e627016c36bd4472 before c124049c3a7006fd6caf629139a5722610bbffb4; 3368c784bcf77124aaf39372e627016c36bd4472 builds before 98f9036b2254c928cb44da0c77dba38f66f7d8f1; from 3368c784bcf77124aaf39372e627016c36bd4472 before b38fbd68cc36b4f478a1e3cfc169b8616ae1337d; 3368c784bcf77124aaf39372e627016c36bd4472 builds before 89f9f433271fad9351de6a3c713b45b2cfb23e4a; from 3368c784bcf77124aaf39372e627016c36bd4472 before b2243ffaac14cc3639b5b32a371aac37f96ee554; from 3368c784bcf77124aaf39372e627016c36bd4472 before c0a9a8586a63fda49e61a6b83360feac2a60d898 | CNA record |
References
- https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb
- https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4
- https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1
- https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d
- https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a
- https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554
- https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.