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CVE-2026-46112: RDMA/hns: Fix unlocked call to hns_roce_qp_remove()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-06-24
• Weakness: CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix unlocked call to hns_roce_qp_remove() Sashiko points out that hns_roce_qp_remove() requires the caller to hold locks. The error flow in hns_roce_create_qp_common() doesn't hold those locks for the error unwind so it risks corrupting memory. Grab the same locks the other two callers use.

Affected products

• Linux kernel: from 4.17 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7 — fixed in 5.15.209, 6.1.175, 6.12.88, 6.18.30, 6.6.140, 7.0.7

How to fix

Upgrade to a fixed version: Linux kernel 5.15.209, 6.1.175, 6.12.88, 6.18.30. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0c99acbc8b6c6dd526ae475a48ee1897b61072fb
• https://git.kernel.org/stable/c/1912f78798505dc9c637081bbddfbf1c22494c49
• https://git.kernel.org/stable/c/1f0a3aa8b569d010316b427238222c5d899f9618
• https://git.kernel.org/stable/c/615d9d260c32bb678504ca96f29ae46f9d745155
• https://git.kernel.org/stable/c/b6296ff2475fc95ee6ea1b528c4b385302808186
• https://git.kernel.org/stable/c/fb4ae739811d467409bd07d0e36cfd4140f3d26a
• https://git.kernel.org/stable/c/fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb

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