CVE-2026-93278: Linux kernel · staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in c124049c3a7006fd6caf629139a5722610bbffb4 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c124049c3a7006fd6caf629139a5722610bbffb4, c0a9a8586a63fda49e61a6b83360feac2a60d898, b2243ffaac14cc3639b5b32a371aac37f96ee554 +4
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to the fixed kernel versions identified by the provided commit hashes to remediate this issue.
Description
A use-after-free vulnerability was fixed in the Linux kernel's octeon staging driver. The issue involved missing disabling of the NAPI instance before freeing interrupts, which could lead to the active poll function accessing freed memory and causing a crash.
References
- git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb (opens in a new tab)
- git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4 (opens in a new tab)
- git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1 (opens in a new tab)
- git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d (opens in a new tab)
- git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a (opens in a new tab)
- git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554 (opens in a new tab)
- git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898 (opens in a new tab)