{"id":"CVE-2026-63986","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\n\nThe goto err label leads to:\n\n\tgenlmsg_cancel(skb, ehdr);\n\treturn ret;\n\nIf ethnl_tsinfo_prepar…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\n\nThe goto err label leads to:\n\n\tgenlmsg_cancel(skb, ehdr);\n\treturn ret;\n\nIf ethnl_tsinfo_prepar…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.14, < 6.18.35","linux_kernel >= 6.19, < 7.0.12","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.12"],"published":"2026-07-19","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:50:43.857","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63986","references":[{"url":"https://git.kernel.org/stable/c/2008f9bb1ede9b688624a241228b8e54fc74f0f6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c3fc9976f686f9a95baf87db9d387f218fd65394","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d0d2c5ccd1de28368cebeef74d9c530a60eff9a5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00166,"epssPercentile":0.05336,"ingestedAt":"2026-10-07T21:54:15.079Z","slug":"CVE-2026-63986","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\n\nThe goto err label leads to:\n\n\tgenlmsg_cancel(skb, ehdr);\n\treturn ret;\n\nIf ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg.\nThere's nothing to cancel, and passing an error pointer to\ngenlmsg_cancel() would cause a crash.\n\n## Affected\n\n- `linux_kernel >= 6.14, < 6.18.35`\n- `linux_kernel >= 6.19, < 7.0.12`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.12`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}