Answer in brief
CVE-2026-31493 records a Unknown severity vulnerability in RDMA/efa: Fix use of completion ctx after free. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=68fb9f3e312a36e49fd05ec2d6b668daf2c4931a <8c24b5179af260a5f36571c992d29aab1f448544 || >=68fb9f3e312a36e49fd05ec2d6b668daf2c4931a <7ba09d85f177e9f5f64b881f33dbcb57b2cf23d5 || >=68fb9f3e312a36e49fd05ec2d6b668daf2c4931a <0dd98aea1c0c45987fa2dd92f988b0eb1a72c125 || >=68fb9f3e312a36e49fd05ec2d6b668daf2c4931a <1cf95fe5dc5471efea947b4c6f8913da6bc7976e || >=68fb9f3e312a36e49fd05ec2d6b668daf2c4931a <ef3b06742c8a201d0e83edc9a33a89a4fe3009f8 | 8c24b5179af260a5f36571c992d29aab1f448544, 7ba09d85f177e9f5f64b881f33dbcb57b2cf23d5, 0dd98aea1c0c45987fa2dd92f988b0eb1a72c125, 1cf95fe5dc5471efea947b4c6f8913da6bc7976e, ef3b06742c8a201d0e83edc9a33a89a4fe3009f8 |
| Linux/Linuxgeneric | 5.12 | Not reported |
Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
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.
Quoted source text, attributed separately from HOL analysis.