CVE-2026-43282: Linux kernel · RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 00:48 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 11 Nov 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to check the return value of ib_device_get_netdev() in ionic_query_port() and return -ENODEV if the pointer is NULL. Users should update to the fixed kernel version once available. No other mitigation steps are indicated.
Description
A potential NULL pointer dereference vulnerability was identified and fixed in the Linux kernel's RDMA ionic driver. The issue occurred because the function ionic_query_port() called ib_device_get_netdev() without verifying if the returned pointer was NULL, which could lead to a kernel NULL pointer dereference. The fix involves adding a check for the NULL return value and returning an error code (-ENODEV) if the network device pointer is NULL.