Bug 2482581 (CVE-2026-46145) - CVE-2026-46145 kernel: RDMA/mana: Validate rx_hash_key_len
Summary: CVE-2026-46145 kernel: RDMA/mana: Validate rx_hash_key_len
Keywords:
Status: NEW
Alias: CVE-2026-46145
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-28 11:04 UTC by OSIDB Bzimport
Modified: 2026-05-28 16:43 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-05-28 11:04:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

RDMA/mana: Validate rx_hash_key_len

Sashiko points out that rx_hash_key_len comes from a uAPI structure and is
blindly passed to memcpy, allowing the userspace to trash kernel
memory. Bounds check it so the memcpy cannot overflow.
Comment 1 Keith Grant 2026-05-28 16:34:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052821-CVE-2026-46145-e347@gregkh/T
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