Yüksek CVSS 7.8
CVE-2026-46176: Linux Kernel: güvenlik açığı
Açıklama (NVD)
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.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,14 (yüzdelik 4)
- CWE
- CWE-825
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 6.6.64 | — | 6.6.140 |
| linux-linux-kernel | 6.11 | — | 6.12.88 |
| linux-linux-kernel | 6.13 | — | 6.18.30 |
| linux-linux-kernel | 6.19 | — | 7.0.7 |
| linux-linux-kernel | 7.1 | 7.1 | — |
| linux-linux-kernel | 7.1 | 7.1 | — |