CVE-2026-98430: Linux kernel · RDMA/efa: Keep admin queues alive while IRQ is registered
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e08aca85c02ff290f785f07acae758f0daf5f49e : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:47 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in e08aca85c02ff290f785f07acae758f0daf5f49e, d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0, cf5520d1c931a70ccce0a1a247113bcec47a42be +3
Exploitation evidence
Disclosed: evidence found.
CVE published 14 Oct 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 versions containing the patches referenced by the commit hashes provided. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's RDMA/efa driver related to the handling of admin queues and IRQ registration has been resolved. The issue involved the IRQ handler accessing queues whose lifetime was not properly contained, potentially leading to use-after-free conditions. The fix involves initializing queues with interrupts masked, requesting IRQs before switching to interrupt mode, and properly resetting the device and freeing IRQs before destroying queues.
References
- git.kernel.org/stable/c/0a8a105978e5ace0d885964317c5aed8ab4c0a0c (opens in a new tab)
- git.kernel.org/stable/c/00f7df59543cce445cfd2f109ace88c17d8aef4d (opens in a new tab)
- git.kernel.org/stable/c/bc7e64bad96c23fb343f47689670d0037f1a65e7 (opens in a new tab)
- git.kernel.org/stable/c/d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0 (opens in a new tab)
- git.kernel.org/stable/c/cf5520d1c931a70ccce0a1a247113bcec47a42be (opens in a new tab)
- git.kernel.org/stable/c/e08aca85c02ff290f785f07acae758f0daf5f49e (opens in a new tab)