{"id":"CVE-2026-74330","title":"configfs: fix lockless traversals of ->s_children","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nconfigfs: fix lockless traversals of ->s_children\n\nHaving the parent directory locked protects entries from removal\nby another thread, but it does *not* protect cursors…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 77fd6f50f633a52c2db061e7d71d8cb486b0265e","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 91f289728ec706b7ff1ca0ee845dd73ff2253488","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < b166ab78dc3f48e83d2c80bdfde4159b31fdc5fb","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 9e57e2863872e82e7c7237bc32299f67ebebc543","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 459860529c109c5ce08b81c0776ca1200eaaeb4a","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 637ef4961470e04455102b34ac484a34d8eca0a4","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < e6d93108e0a27d7e6f95c7e45017d14ba2900d32","Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 9b9e8bb81c41fd27e7b57a1c936fde140548535f","Linux 2.6.27"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:53:38.426729Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:33.381Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74330","references":[{"url":"https://git.kernel.org/stable/c/77fd6f50f633a52c2db061e7d71d8cb486b0265e"},{"url":"https://git.kernel.org/stable/c/91f289728ec706b7ff1ca0ee845dd73ff2253488"},{"url":"https://git.kernel.org/stable/c/b166ab78dc3f48e83d2c80bdfde4159b31fdc5fb"},{"url":"https://git.kernel.org/stable/c/9e57e2863872e82e7c7237bc32299f67ebebc543"},{"url":"https://git.kernel.org/stable/c/459860529c109c5ce08b81c0776ca1200eaaeb4a"},{"url":"https://git.kernel.org/stable/c/637ef4961470e04455102b34ac484a34d8eca0a4"},{"url":"https://git.kernel.org/stable/c/e6d93108e0a27d7e6f95c7e45017d14ba2900d32"},{"url":"https://git.kernel.org/stable/c/9b9e8bb81c41fd27e7b57a1c936fde140548535f"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.0228,"ingestedAt":"2026-10-16T19:46:24.379Z","slug":"CVE-2026-74330","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nconfigfs: fix lockless traversals of ->s_children\n\nHaving the parent directory locked protects entries from removal\nby another thread, but it does *not* protect cursors from being\nmoved around by lseek() - or freed, for that matter.\n\n## Affected\n\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 77fd6f50f633a52c2db061e7d71d8cb486b0265e`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 91f289728ec706b7ff1ca0ee845dd73ff2253488`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < b166ab78dc3f48e83d2c80bdfde4159b31fdc5fb`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 9e57e2863872e82e7c7237bc32299f67ebebc543`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 459860529c109c5ce08b81c0776ca1200eaaeb4a`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 637ef4961470e04455102b34ac484a34d8eca0a4`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < e6d93108e0a27d7e6f95c7e45017d14ba2900d32`\n- `Linux >= 6f61076406251626be39651d114fac412b1e0c39 < 9b9e8bb81c41fd27e7b57a1c936fde140548535f`\n- `Linux 2.6.27`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}