Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Avoid repeated requests to allocate WC pages Applications can request multiple WC pages for the same ucontext. As of now, only 1 WC page per ucontext is supported. Add a lock to avoid concurrent access and a check to fail repeated requests. Also, if the mmap entry insert fails for the WC, free the Doorbell page index mapped for the WC page.
References5
- git.kernel.org/stable/c/00c71846874fea4917961236e49287a1850dcf98
- git.kernel.org/stable/c/441baa79043431807115fd030d7d0bb14ed441a0
- git.kernel.org/stable/c/478c4d24193fe3e6aa2accd4874ae43000e4a217
- git.kernel.org/stable/c/8e59bd37d6d63a06ed452eaffe6c9d4ad903af7b
- git.kernel.org/stable/c/da406b8b49c1dfe661a497483940d7ee781430db
Metrics
- CVSS 3.1
-
9.3
CRITICAL
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 8 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.