Bug 2516310 (CVE-2026-72495) - CVE-2026-72495 kernel: RDMA/bnxt_re: Avoid repeated requests to allocate WC pages
Summary: CVE-2026-72495 kernel: RDMA/bnxt_re: Avoid repeated requests to allocate WC p...
Keywords:
Status: NEW
Alias: CVE-2026-72495
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:05 UTC by OSIDB Bzimport
Modified: 2026-08-19 13:54 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-15 06:05:47 UTC 
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.
Comment 1 gkamathe 2026-08-19 13:48:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081539-CVE-2026-72495-d1ba@gregkh/T
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