جزئیات آسیب‌پذیری
CVE-2026-46176
RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()
شرح رسمی (انگلیسی)
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.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 7.0بالا | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Linux | Linux | 6.11 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 ≤ v < bc2cf5935b4665172235341163315905197ae91d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 ≤ v < b087913ae88256df66620f7ba0a9776716aeef7e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 ≤ v < 6fd93142dd1d09000c3750af08270f5792523fe9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 ≤ v < c488df06bd552bb8b6e14fa0cfd5ad986c6e9525 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6.6.64 ≤ v < 6.6.140 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | b6334d2356fc0922ed01457960f74923058a353a ≤ v < a13c2ac4d480b734342c6fbf8249fc48afd675f3 | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 9 | همه | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱۲- https://git.kernel.org/stable/c/a13c2ac4d480b734342c6fbf8249fc48afd675f3
- https://git.kernel.org/stable/c/bc2cf5935b4665172235341163315905197ae91d
- https://git.kernel.org/stable/c/b087913ae88256df66620f7ba0a9776716aeef7e
- https://git.kernel.org/stable/c/6fd93142dd1d09000c3750af08270f5792523fe9
- https://git.kernel.org/stable/c/c488df06bd552bb8b6e14fa0cfd5ad986c6e9525
- https://access.redhat.com/security/cve/CVE-2026-46176 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2482594 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46176.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:33215 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:33685 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:34094 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30848 vendor-advisoryx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۳/۰۷
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۲۷
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- کامل
ضعف‌ها (CWE)
- CWE-825Expired Pointer Dereference