{"id":"CVE-2025-39750","title":"wifi: ath12k: Correct tid cleanup when tid setup fails","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Correct tid cleanup when tid setup fails\n\nCurrently, if any error occurs during ath12k_dp_rx_peer_tid_setup(),\nthe tid value is already incremented, even …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 30cad87978057516c93467516bc481a3eacfd66a","Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 2ef17d1476ab26bce89764e2f16833d7f52acc38","Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 907c630e58af9e86e215f3951c7b287bd86d0f15","Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 6301fe4f209165334d251a1c6da8ae47f93cb32c","Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 4a2bf707270f897ab8077baee8ed5842a5321686","Linux 6.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:53:56.370422Z"},"published":"2025-09-11","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:02:31.513Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-39750","references":[{"url":"https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a"},{"url":"https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38"},{"url":"https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15"},{"url":"https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c"},{"url":"https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686"}],"tags":["cve.org"],"epss":0.00236,"epssPercentile":0.14572,"ingestedAt":"2026-10-15T22:48:25.523Z","slug":"CVE-2025-39750","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Correct tid cleanup when tid setup fails\n\nCurrently, if any error occurs during ath12k_dp_rx_peer_tid_setup(),\nthe tid value is already incremented, even though the corresponding\nTID is not actually allocated. Proceed to\nath12k_dp_rx_peer_tid_delete() starting from unallocated tid,\nwhich might leads to freeing unallocated TID and cause potential\ncrash or out-of-bounds access.\n\nHence, fix by correctly decrementing tid before cleanup to match only\nthe successfully allocated TIDs.\n\nAlso, remove tid-- from failure case of ath12k_dp_rx_peer_frag_setup(),\nas decrementing the tid before cleanup in loop will take care of this.\n\nCompile tested only.\n\n## Affected\n\n- `Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 30cad87978057516c93467516bc481a3eacfd66a`\n- `Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 2ef17d1476ab26bce89764e2f16833d7f52acc38`\n- `Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 907c630e58af9e86e215f3951c7b287bd86d0f15`\n- `Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 6301fe4f209165334d251a1c6da8ae47f93cb32c`\n- `Linux >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 4a2bf707270f897ab8077baee8ed5842a5321686`\n- `Linux 6.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}