{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-39750", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.125Z", "datePublished": "2025-09-11T16:52:21.917Z", "dateUpdated": "2026-08-05T12:04:58.907Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:04:58.907Z" }, "descriptions": [ { "lang": "en", "value": "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 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." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - The vulnerable path is entered from the ath12k WiFi driver's mac80211 `sta_state` callback when a peer is added in response to received 802.11 management frames, so the attacker must be within radio range of the AP/STA, i.e. on the same wireless segment.\nAC:L - The attacker controls both sides of the trigger — repeatedly transmitting auth/assoc frames from spoofed MACs (each allocating 17 GFP_ATOMIC REO queue descriptors) and immediately deauthing to race peer teardown against the 17-TID setup loop — so the `ath12k_dp_rx_peer_frag_setup()` failure needed to reach `rx_tid[17]` is attacker-driven rather than beyond their influence.\nPR:N - In AP mode mac80211/hostapd add the station (NOTEXIST→NONE) upon an 802.11 Authentication frame, before any credentials, PSK, or 802.1X exchange is verified, so the attacker needs no account or key on the target.\nUI:N - Exploitation requires only that the attacker transmit 802.11 frames to a listening ath12k AP; no action by a local user or administrator is needed.\nS:U - The out-of-bounds read/write and invalid free corrupt kernel heap memory managed by the same kernel security authority; there is no crossing into a hypervisor, guest, or sandbox boundary.\nC:H - `ath12k_dp_reo_cmd_send()` performs a 128-byte `memcpy` from `&peer->rx_tid[17]`, copying out-of-bounds heap contents (including kernel pointers and DMA addresses) into a cached REO command element, and the OOB-read address is also handed to hardware — an unbounded adjacent-memory read.\nI:H - The bug yields out-of-bounds writes past `peer->rx_tid[]` (`vaddr = NULL`, `active = false`, plus an 8-byte write one entry past the REO LUT), a `kfree()` of a pointer synthesized from out-of-bounds bytes (arbitrary-free primitive), and a REO hardware queue-descriptor write at an attacker-influenced physical address — all usable for control-flow-relevant heap corruption.\nA:H - Freeing a wild pointer and `dma_unmap_single()` on a bogus DMA address reliably produce slab corruption, IOMMU faults, or an oops/panic, taking down the kernel and the WiFi interface." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/ath/ath12k/dp.c" ], "versions": [ { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "30cad87978057516c93467516bc481a3eacfd66a", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "2ef17d1476ab26bce89764e2f16833d7f52acc38", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "907c630e58af9e86e215f3951c7b287bd86d0f15", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "6301fe4f209165334d251a1c6da8ae47f93cb32c", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "4a2bf707270f897ab8077baee8ed5842a5321686", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/ath/ath12k/dp.c" ], "versions": [ { "version": "6.3", "status": "affected" }, { "version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.103", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.43", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15.11", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.16.2", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.6.103" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.43" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.15.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.16.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.17" } ] } ] } ], "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" } ], "title": "wifi: ath12k: Correct tid cleanup when tid setup fails", "x_generator": { "engine": "bippy-1.2.0" } } } }