What’s Vulnerable › Vulnerabilities

CVE-2022-50127: RDMA/rxe: Fix error unwind in rxe_create_qp()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix error unwind in rxe_create_qp() In the function rxe_create_qp(), rxe_qp_from_init() is called to initialize qp, internally things like the spin locks are not setup until rxe_qp_init_req(). If an error occures before this point then the unwind will call rxe_cleanup() and eventually to rxe_qp_do_cleanup()/rxe_cleanup_task() which will oops when trying to access the uninitialized spinlock. Move the spinlock initializations earlier before any failures.

Affected products

• Linux kernel: from 4.8 before 4.14.291; from 4.15 before 4.19.256; from 4.20 before 5.4.211; from 5.5 before 5.10.137; from 5.11 before 5.15.61; from 5.16 before 5.18.18 — fixed in 4.14.291, 4.19.256, 5.10.137, 5.15.61, 5.18.18, 5.19.2

How to fix

Upgrade to a fixed version: Linux kernel 4.14.291, 4.19.256, 5.10.137, 5.15.61. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1a63f24e724f677db1ab21251f4d0011ae0bb5b5
• https://git.kernel.org/stable/c/2ceeb04252e621c0b128ecc8fedbca922d11adba
• https://git.kernel.org/stable/c/3c838ca6fbdb173102780d7bdf18f2f7d9e30979
• https://git.kernel.org/stable/c/3ef491b26c720a87fcfbd78b7dc8eb83d9753fe6
• https://git.kernel.org/stable/c/b348e204a53103f51070513a7494da7c62ecbdaa
• https://git.kernel.org/stable/c/db924bd8484c76558a4ac4c4b5aeb52e857f0341
• https://git.kernel.org/stable/c/f05b7cf02123aaf99db78abfe638efefdbe15555
• https://git.kernel.org/stable/c/fd5382c5805c4bcb50fd25b7246247d3f7114733

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