CVE-2026-64553 is a vulnerability in Linux Kernel
Published on July 27, 2026
net: psample: fix info leak in PSAMPLE_ATTR_DATA
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.
Products Associated with CVE-2026-64553
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Affected Versions
Linux:- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below 0d3ea2ccddda442077fc44f11d873209c97ec50b is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below 7fe7e6949964aa8ee6305f09db2dc9eede977bb3 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below 48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below a6cfb924ad74efce254e99c197d2e3863de70868 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below 794a0d8bdbb39e083ed42caccb86d687a9b53570 is affected.
- Version 6ae0a6286171154661b74f7f550f9441c6008424 and below aedd02af1f8b0bceb7f42f5a21c41634ca9ed390 is affected.
- Version 4.11 is affected.
- Before 4.11 is unaffected.
- Version 5.10.261, <= 5.10.* is unaffected.
- Version 5.15.212, <= 5.15.* is unaffected.
- Version 6.1.178, <= 6.1.* is unaffected.
- Version 6.6.145, <= 6.6.* is unaffected.
- Version 6.12.97, <= 6.12.* is unaffected.
- Version 6.18.40, <= 6.18.* is unaffected.
- Version 7.1.5, <= 7.1.* is unaffected.
- Version 7.2-rc1, <= * is unaffected.