{"id":"CVE-2025-37924","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in kerberos authentication\n\nSetting sess->user = NULL was introduced to fix the dangling pointer\ncreated by ksmbd_free_user","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in kerberos authentication\n\nSetting sess->user = NULL was introduced to fix the dangling pointer\ncreated by ksmbd_free_user. However, it is po…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.15, < 6.1.138","linux_kernel >= 6.2, < 6.6.90","linux_kernel >= 6.7, < 6.12.28","linux_kernel >= 6.13, < 6.14.6","linux_kernel = 6.15","debian_linux = 11.0"],"patched":["linux_kernel 6.14.6"],"published":"2025-05-20","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:21.743","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-37924","references":[{"url":"https://git.kernel.org/stable/c/28c756738af44a404a91b77830d017bb0c525890","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b447463562238428503cfba1c913261047772f90","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e18c616718018dfc440e4a2d2b94e28fe91b1861","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e86e9134e1d1c90a960dd57f59ce574d27b9a124","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"epss":0.24546,"epssPercentile":0.97868,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-15T21:46:12.066488Z"},"ingestedAt":"2026-10-15T22:48:25.485Z","slug":"CVE-2025-37924","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in kerberos authentication\n\nSetting sess->user = NULL was introduced to fix the dangling pointer\ncreated by ksmbd_free_user. However, it is possible another thread could\nbe operating on the session and make use of sess->user after it has been\npassed to ksmbd_free_user but before sess->user is set to NULL.\n\n## Affected\n\n- `linux_kernel >= 5.15, < 6.1.138`\n- `linux_kernel >= 6.2, < 6.6.90`\n- `linux_kernel >= 6.7, < 6.12.28`\n- `linux_kernel >= 6.13, < 6.14.6`\n- `linux_kernel = 6.15`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.14.6`","depth":"midnight","depthScore":59,"depthScoreParts":{"impact":53.9,"likelihood":4.9,"exploitation":0,"ransomware":0},"changes":[]}