PT-2026-61303 · Linux · Linux

CVE-2026-63986

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Published

2026-07-19

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Updated

2026-07-19

None

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In the Linux kernel, the following vulnerability has been resolved:
ethtool: tsinfo: don't pass ERR PTR to genlmsg cancel on prepare failure
The goto err label leads to:
genlmsg cancel(skb, ehdr);
return ret;
If ethnl tsinfo prepare dump() failed, it has not started a genlmsg. There's nothing to cancel, and passing an error pointer to genlmsg cancel() would cause a crash.
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Related Identifiers

CVE-2026-63986

Affected Products

Linux