CVE-2026-31493
HIGH EPSS 2.7%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fix use of completion ctx after free On admin queue completion handling, if the admin command completed with error we print data from the completion context. The issue is that we already freed the completion context in polling/interrupts handler which means we print data from context in an unknown state (it might be already used again). Change the admin submission flow so alloc/dealloc of the context will be symmetric and dealloc will be called after any potential use of the context.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
Affected Products 10
References 3
- git.kernel.org https://git.kernel.org/stable/c/0dd98aea1c0c45987fa2dd92f988b0eb1a72c125
- git.kernel.org https://git.kernel.org/stable/c/1cf95fe5dc5471efea947b4c6f8913da6bc7976e
- git.kernel.org https://git.kernel.org/stable/c/ef3b06742c8a201d0e83edc9a33a89a4fe3009f8
Remediation
- git.kernel.org https://git.kernel.org/stable/c/0dd98aea1c0c45987fa2dd92f988b0eb1a72c125
- git.kernel.org https://git.kernel.org/stable/c/1cf95fe5dc5471efea947b4c6f8913da6bc7976e
- git.kernel.org https://git.kernel.org/stable/c/ef3b06742c8a201d0e83edc9a33a89a4fe3009f8