CVE-2026-46176 In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in…
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.7 | 7.0.7 |
| Linux 6.18 | premières → < 6.18.30 | 6.18.30 |
| Linux 6.12 | premières → < 6.12.88 | 6.12.88 |
| Linux | 6.11 | Pas de correctif indiqué |
| Linux 6.6 | premières → < 6.6.140 | 6.6.140 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Versions non publiées | |
| Red Hat Enterprise Linux AppStream (v. 9) | Versions non publiées | |
| Red Hat Enterprise Linux BaseOS EUS (v. 10.0) | Versions non publiées |
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Références
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Chronologie
- Publiée
- Dernière modification