CVE-2026-63986: vulnerability in Linux
ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure
Published
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
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.
Affected products
Linux · LinuxRelated CVEs — Linux
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