CVE-2026-63986

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-763

Published

2026-07-19

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/2008f9bb1ede9b688624a241228b8e54fc74f0f6
• https://git.kernel.org/stable/c/c3fc9976f686f9a95baf87db9d387f218fd65394
• https://git.kernel.org/stable/c/d0d2c5ccd1de28368cebeef74d9c530a60eff9a5

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