Bug 2507720 (CVE-2026-64553) - CVE-2026-64553 kernel: net: psample: fix info leak in PSAMPLE_ATTR_DATA
Summary: CVE-2026-64553 kernel: net: psample: fix info leak in PSAMPLE_ATTR_DATA
Keywords:
Status: NEW
Alias: CVE-2026-64553
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-27 21:01 UTC by OSIDB Bzimport
Modified: 2026-07-29 05:42 UTC (History)
2 users (show)

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

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Description OSIDB Bzimport 2026-07-27 21:01:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: psample: fix info leak in PSAMPLE_ATTR_DATA

psample open codes nla_put() presumably to avoid wiping
the data with 0s just to override it with packet data.
This open coding is missing clearing the pad, however,
each netlink attr is padded to 4B and data_len may
not be divisible by 4B.
Comment 1 TEJ RATHI 2026-07-29 05:36:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026072738-CVE-2026-64553-87c9@gregkh/T
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