RDMA/hns: Fix UAF for cq async event
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
exploitation probability
0.3%top 85% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/330c825e66ef65278e4ebe57fd49c1d6f3f4e34ehttps://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcafhttps://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42