CVE-2026-23353: Linux kernel · ice: fix crash in ethtool offline loopback test
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in a9c354e656597aededa027d63d2ff0973f6b033f : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in a9c354e656597aededa027d63d2ff0973f6b033f, a4c584ea79d958ea1cadc9ce056f6df58a363342, 85c98b81849e4724ae99005a6cccd33cab9cfd18
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Mar 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 Linux kernel to a9c354e656597aededa027d63d2ff0973f6b033f, a4c584ea79d958ea1cadc9ce056f6df58a363342 or 85c98b81849e4724ae99005a6cccd33cab9cfd18.
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– |
AI-suggested
A fix is available in the Linux kernel as indicated by the fixed commit versions. Users should update to a kernel version that includes the patches identified by commits a9c354e656597aededa027d63d2ff0973f6b033f, a4c584ea79d958ea1cadc9ce056f6df58a363342, or 85c98b81849e4724ae99005a6cccd33cab9cfd18. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's ice driver causes a crash during the ethtool offline loopback test due to a NULL pointer dereference. The issue arises because the rx ring is not properly initialized after converting ice to use a page pool. This leads to a kernel oops and system instability when the loopback test is run. The problem is fixed by initializing a dummy q_vector for ICE_VSI_LB VSIs, enabling proper handling of the rx ring during the test.