Answer in brief
CVE-2026-46176 records a High severity (CVSS 7.8) vulnerability in RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init(). 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.
Answer in brief
CVE-2026-46176 records a High severity (CVSS 7.8) vulnerability in RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init(). 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 | >=b6334d2356fc0922ed01457960f74923058a353a <a13c2ac4d480b734342c6fbf8249fc48afd675f3 || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <bc2cf5935b4665172235341163315905197ae91d || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <b087913ae88256df66620f7ba0a9776716aeef7e || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <6fd93142dd1d09000c3750af08270f5792523fe9 || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <c488df06bd552bb8b6e14fa0cfd5ad986c6e9525 || >=6.6.64 <6.6.140 | a13c2ac4d480b734342c6fbf8249fc48afd675f3, bc2cf5935b4665172235341163315905197ae91d, b087913ae88256df66620f7ba0a9776716aeef7e, 6fd93142dd1d09000c3750af08270f5792523fe9, c488df06bd552bb8b6e14fa0cfd5ad986c6e9525, 6.6.140 |
| Linux/Linuxgeneric | 6.11 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1. This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown. Fix by adding the same `goto unlock` in the s1 failure path.
Quoted source text, attributed separately from HOL analysis.
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 | >=b6334d2356fc0922ed01457960f74923058a353a <a13c2ac4d480b734342c6fbf8249fc48afd675f3 || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <bc2cf5935b4665172235341163315905197ae91d || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <b087913ae88256df66620f7ba0a9776716aeef7e || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <6fd93142dd1d09000c3750af08270f5792523fe9 || >=5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 <c488df06bd552bb8b6e14fa0cfd5ad986c6e9525 || >=6.6.64 <6.6.140 | a13c2ac4d480b734342c6fbf8249fc48afd675f3, bc2cf5935b4665172235341163315905197ae91d, b087913ae88256df66620f7ba0a9776716aeef7e, 6fd93142dd1d09000c3750af08270f5792523fe9, c488df06bd552bb8b6e14fa0cfd5ad986c6e9525, 6.6.140 |
| Linux/Linuxgeneric | 6.11 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1. This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown. Fix by adding the same `goto unlock` in the s1 failure path.
Quoted source text, attributed separately from HOL analysis.