CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix integer overflow of user QP buffer size set_user_buf_size() computes the QP buffer size by left-shifting the user-supplied rq.wqe_cnt and rq.wqe_shift values as signed integers. A sufficiently large rq.wqe_cnt causes signed integer overflow, which is undefined behavior, and yields a small or negative buf_size, causing ib_umem_get() to map a buffer smaller than the hardware will actually write into. Replace the shifts and addition with check_shl_overflow() and check_add_overflow(), rejecting invalid user inputs. Moreover, guard the identical shift computing qp->sq.offset in _create_user_qp() before set_user_buf_size() is reached.
Засегнати продукти
- Linux Linux: e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди ccce6b7ef1d7efc59ccba3421e1339c6e63a3d20; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди d99622e40aaa910ade681dfd4dc0fa240a011331; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди c845e5e05140ea1bc64a5b1107942d93c876034d; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди 42fb8aefffff5b458aaa66803364a16e0ea44129; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди d7fa2ff72ad1861eac194a4e0075d504ba8c246e; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди 5b6cfc6d7ff0959dd9766fdc24286a253b59ca77; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди f917707f0de0832b8ab582391b1f64e549995c6c; e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c преди dec47e4b0fe34afdf38caa72b4408ba95502e5de
- Linux Linux: 3.11; преди 3.11; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък
История
- 17 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90435
- https://nvd.nist.gov/vuln/detail/CVE-2026-90435
- https://git.kernel.org/stable/c/ccce6b7ef1d7efc59ccba3421e1339c6e63a3d20
- https://git.kernel.org/stable/c/d99622e40aaa910ade681dfd4dc0fa240a011331
- https://git.kernel.org/stable/c/c845e5e05140ea1bc64a5b1107942d93c876034d
- https://git.kernel.org/stable/c/42fb8aefffff5b458aaa66803364a16e0ea44129
- https://git.kernel.org/stable/c/d7fa2ff72ad1861eac194a4e0075d504ba8c246e
- https://git.kernel.org/stable/c/5b6cfc6d7ff0959dd9766fdc24286a253b59ca77
- https://git.kernel.org/stable/c/f917707f0de0832b8ab582391b1f64e549995c6c
- https://git.kernel.org/stable/c/dec47e4b0fe34afdf38caa72b4408ba95502e5de