Bug 2468163 (CVE-2026-43457) - CVE-2026-43457 kernel: mctp: i2c: fix skb memory leak in receive path
Summary: CVE-2026-43457 kernel: mctp: i2c: fix skb memory leak in receive path
Keywords:
Status: NEW
Alias: CVE-2026-43457
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-08 15:02 UTC by OSIDB Bzimport
Modified: 2026-05-09 00:58 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-08 15:02:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mctp: i2c: fix skb memory leak in receive path

When 'midev->allow_rx' is false, the newly allocated skb isn't consumed
by netif_rx(), it needs to free the skb directly.
Comment 1 Keith Grant 2026-05-09 00:56:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050800-CVE-2026-43457-85fe@gregkh/T
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