Answer in brief
CVE-2026-74297 records a High severity (CVSS 7.8) vulnerability in RDMA/mlx5: Fix undefined shift of user RQ WQE size. 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.
CVSS is 7.8. 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 | >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <9fff54929cc00849d738faa99f06c32399aeb026 || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <b746f949c2ac2b041102836095d6d4a2ef21fa75 || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <c1dbf52d24a8cb1aa56780ba51b72e7d495f258c || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <6fc874fdfb366bfb11c62e6af9a831c8be59ddda || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <42f3d2c8c18b92ea33e506a38b64f1a8986c2823 || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <4b87a2497276a72fd63028e7419abf0fb7ed837b || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <b732db02a2b04cde393638df19de6251ce62a74e || >=e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c <d881d60223aac8fdc12b227d89c76e131e92a9cd | 9fff54929cc00849d738faa99f06c32399aeb026, b746f949c2ac2b041102836095d6d4a2ef21fa75, c1dbf52d24a8cb1aa56780ba51b72e7d495f258c, 6fc874fdfb366bfb11c62e6af9a831c8be59ddda, 42f3d2c8c18b92ea33e506a38b64f1a8986c2823, 4b87a2497276a72fd63028e7419abf0fb7ed837b, b732db02a2b04cde393638df19de6251ce62a74e, d881d60223aac8fdc12b227d89c76e131e92a9cd |
| Linux/Linuxgeneric | 3.11 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size set_rq_size() computes the RQ WQE size as "1 << rq_wqe_shift" based on the user-provided rq_wqe_shift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shift of 31 also overflows a signed integer, leading to undefined behavior. Use check_shl_overflow() to compute the RQ WQE size and reject any invalid values.
Quoted source text, attributed separately from HOL analysis.