7.8

CVE-2024-38545

RDMA/hns: Fix UAF for cq async event

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.9 < 5.15.168
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.93
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.33
Linux ≫ Linux Kernel Version >= 6.7 < 6.8.12
Linux ≫ Linux Kernel Version >= 6.9 < 6.9.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.162
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/330c825e66ef65278e4ebe57fd49c1d6f3f4e34e
Patch
https://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507
Patch
https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911
Patch
https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08
Patch
https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcaf
Patch
https://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42
Patch