Bug 2429584 (CVE-2025-71112) - CVE-2025-71112 kernel: net: hns3: add VLAN id validation before using
Summary: CVE-2025-71112 kernel: net: hns3: add VLAN id validation before using
Keywords:
Status: NEW
Alias: CVE-2025-71112
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: 2026-01-14 16:02 UTC by OSIDB Bzimport
Modified: 2026-01-14 20:42 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-01-14 16:02:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: hns3: add VLAN id validation before using

Currently, the VLAN id may be used without validation when
receive a VLAN configuration mailbox from VF. The length of
vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause
out-of-bounds memory access once the VLAN id is bigger than
or equal to VLAN_N_VID.

Therefore, VLAN id needs to be checked to ensure it is within
the range of VLAN_N_VID.
Comment 1 Jon Moroney 2026-01-14 20:38:40 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026011413-CVE-2025-71112-ca37@gregkh/T
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