What’s Vulnerable › Vulnerabilities
CVE-2024-38545: RDMA/hns: Fix UAF for cq async event
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-06-19 · updated 2026-08-04
- Weakness: CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix UAF for cq async event The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xa_lock() to protect the CQ refcount.
Affected products
- Linux kernel: from 4.9 before 5.15.168; from 5.16 before 6.1.93; from 6.2 before 6.6.33; from 6.7 before 6.8.12; from 6.9 before 6.9.3 — fixed in 5.15.168, 6.1.93, 6.6.33, 6.8.12, 6.9.3
How to fix
Upgrade to a fixed version: Linux kernel 5.15.168, 6.1.93, 6.6.33, 6.8.12. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/330c825e66ef65278e4ebe57fd49c1d6f3f4e34e
- https://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507
- https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911
- https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08
- https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcaf
- https://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42
- https://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507
- https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911
- https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08
- https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcaf
- https://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42
Get alerted when CVE-2024-38545 or the next vulnerability affects your stack