{"id":"CVE-2025-22074","title":"ksmbd: fix r_count dec/increment mismatch","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix r_count dec/increment mismatch\n\nr_count is only increased when there is an oplock break wait,\nso r_count inc/decrement are not paired. This can cause r_count…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 8e6508c7ecb1802909f294827eff38f301d0c937 < 8829849da3f68697b830a5b36047b0d8a50ae3ed","Linux >= 09aeab68033161cb54f194da93e51a11aee6144b < 4790bcb269e5d6d88200a67c54ae6d627332a3be","Linux >= a4261bbc33fbf99b99c80aa3a2c5097611802980 < 457db486203c90e10c3efc87fd45cc7000b1cd36","Linux >= f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa < 20378cf48359f39dee0ef9b61470ebe77bd49c0d","Linux >= 3aa660c059240e0c795217182cf7df32909dd917 < c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9","Linux >= 3aa660c059240e0c795217182cf7df32909dd917 < ddb7ea36ba7129c2ed107e2186591128618864e1","Linux >= 6.6.84 < 6.6.87","Linux >= 6.12.20 < 6.12.23","Linux >= 6.13.8 < 6.13.11","Linux 6.14"],"published":"2025-04-16","updated":"2026-10-30","sourceUpdated":"2026-10-30T12:21:13.575Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-22074","references":[{"url":"https://git.kernel.org/stable/c/8829849da3f68697b830a5b36047b0d8a50ae3ed"},{"url":"https://git.kernel.org/stable/c/4790bcb269e5d6d88200a67c54ae6d627332a3be"},{"url":"https://git.kernel.org/stable/c/457db486203c90e10c3efc87fd45cc7000b1cd36"},{"url":"https://git.kernel.org/stable/c/20378cf48359f39dee0ef9b61470ebe77bd49c0d"},{"url":"https://git.kernel.org/stable/c/c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9"},{"url":"https://git.kernel.org/stable/c/ddb7ea36ba7129c2ed107e2186591128618864e1"}],"tags":["cve.org"],"epss":0.00528,"epssPercentile":0.44988,"ingestedAt":"2026-11-03T16:49:26.496Z","slug":"CVE-2025-22074","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix r_count dec/increment mismatch\n\nr_count is only increased when there is an oplock break wait,\nso r_count inc/decrement are not paired. This can cause r_count\nto become negative, which can lead to a problem where the ksmbd\nthread does not terminate.\n\n## Affected\n\n- `Linux >= 8e6508c7ecb1802909f294827eff38f301d0c937 < 8829849da3f68697b830a5b36047b0d8a50ae3ed`\n- `Linux >= 09aeab68033161cb54f194da93e51a11aee6144b < 4790bcb269e5d6d88200a67c54ae6d627332a3be`\n- `Linux >= a4261bbc33fbf99b99c80aa3a2c5097611802980 < 457db486203c90e10c3efc87fd45cc7000b1cd36`\n- `Linux >= f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa < 20378cf48359f39dee0ef9b61470ebe77bd49c0d`\n- `Linux >= 3aa660c059240e0c795217182cf7df32909dd917 < c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9`\n- `Linux >= 3aa660c059240e0c795217182cf7df32909dd917 < ddb7ea36ba7129c2ed107e2186591128618864e1`\n- `Linux >= 6.6.84 < 6.6.87`\n- `Linux >= 6.12.20 < 6.12.23`\n- `Linux >= 6.13.8 < 6.13.11`\n- `Linux 6.14`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}