CVE-2025-38643 (GCVE-0-2025-38643)

Vulnerability from cvelistv5 – Published: 2025-08-22 16:00 – Updated: 2026-08-05 12:03
VLAI
Title
wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() Callers of wdev_chandef() must hold the wiphy mutex. But the worker cfg80211_propagate_cac_done_wk() never takes the lock. Which triggers the warning below with the mesh_peer_connected_dfs test from hostapd and not (yet) released mac80211 code changes: WARNING: CPU: 0 PID: 495 at net/wireless/chan.c:1552 wdev_chandef+0x60/0x165 Modules linked in: CPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 Not tainted 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf Workqueue: cfg80211 cfg80211_propagate_cac_done_wk Stack: 00000000 00000001 ffffff00 6093267c 00000000 6002ec30 6d577c50 60037608 00000000 67e8d108 6063717b 00000000 Call Trace: [<6002ec30>] ? _printk+0x0/0x98 [<6003c2b3>] show_stack+0x10e/0x11a [<6002ec30>] ? _printk+0x0/0x98 [<60037608>] dump_stack_lvl+0x71/0xb8 [<6063717b>] ? wdev_chandef+0x60/0x165 [<6003766d>] dump_stack+0x1e/0x20 [<6005d1b7>] __warn+0x101/0x20f [<6005d3a8>] warn_slowpath_fmt+0xe3/0x15d [<600b0c5c>] ? mark_lock.part.0+0x0/0x4ec [<60751191>] ? __this_cpu_preempt_check+0x0/0x16 [<600b11a2>] ? mark_held_locks+0x5a/0x6e [<6005d2c5>] ? warn_slowpath_fmt+0x0/0x15d [<60052e53>] ? unblock_signals+0x3a/0xe7 [<60052f2d>] ? um_set_signals+0x2d/0x43 [<60751191>] ? __this_cpu_preempt_check+0x0/0x16 [<607508b2>] ? lock_is_held_type+0x207/0x21f [<6063717b>] wdev_chandef+0x60/0x165 [<605f89b4>] regulatory_propagate_dfs_state+0x247/0x43f [<60052f00>] ? um_set_signals+0x0/0x43 [<605e6bfd>] cfg80211_propagate_cac_done_wk+0x3a/0x4a [<6007e460>] process_scheduled_works+0x3bc/0x60e [<6007d0ec>] ? move_linked_works+0x4d/0x81 [<6007d120>] ? assign_work+0x0/0xaa [<6007f81f>] worker_thread+0x220/0x2dc [<600786ef>] ? set_pf_worker+0x0/0x57 [<60087c96>] ? to_kthread+0x0/0x43 [<6008ab3c>] kthread+0x2d3/0x2e2 [<6007f5ff>] ? worker_thread+0x0/0x2dc [<6006c05b>] ? calculate_sigpending+0x0/0x56 [<6003b37d>] new_thread_handler+0x4a/0x64 irq event stamp: 614611 hardirqs last enabled at (614621): [<00000000600bc96b>] __up_console_sem+0x82/0xaf hardirqs last disabled at (614630): [<00000000600bc92c>] __up_console_sem+0x43/0xaf softirqs last enabled at (614268): [<00000000606c55c6>] __ieee80211_wake_queue+0x933/0x985 softirqs last disabled at (614266): [<00000000606c52d6>] __ieee80211_wake_queue+0x643/0x985
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < defe9ce121160788547e8e6ec4438ad8a14f40dd (git)
Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < b3d24038eb775f2f7a1dfef58d8e1dc444a12820 (git)
Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < 4a63523d3541eef4cf504a9682e6fbe94ffe79a6 (git)
Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < 7022df2248c08c6f75a01714163ac902333bf3db (git)
Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < dbce810607726408f889d3358f4780fd1436861e (git)
Affected: 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d , < 2c5dee15239f3f3e31aa5c8808f18996c039e2c1 (git)
Affected: 2dbb6faebb94d6d5ae87e5ea6be9280c366393e1 (git)
Affected: a4f85674e4693904ade7cbf6722d0d105d8062d8 (git)
Affected: e233cbaf8ecc5859f0417dd53899da4edb477991 (git)
Affected: 4.14.170 , < 4.15 (semver)
Affected: 4.19.102 , < 4.20 (semver)
Affected: 5.4.18 , < 5.5 (semver)
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Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 6.1.164 , ≤ 6.1.* (semver)
Unaffected: 6.6.118 , ≤ 6.6.* (semver)
Unaffected: 6.12.57 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/reg.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "status": "affected",
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              "versionType": "semver"
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              "version": "5.4.18",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/reg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.164",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.118",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.164",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.118",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.57",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "4.14.170",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.102",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()\n\nCallers of wdev_chandef() must hold the wiphy mutex.\n\nBut the worker cfg80211_propagate_cac_done_wk() never takes the lock.\nWhich triggers the warning below with the mesh_peer_connected_dfs\ntest from hostapd and not (yet) released mac80211 code changes:\n\nWARNING: CPU: 0 PID: 495 at net/wireless/chan.c:1552 wdev_chandef+0x60/0x165\nModules linked in:\nCPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 Not tainted 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf\nWorkqueue: cfg80211 cfg80211_propagate_cac_done_wk\nStack:\n 00000000 00000001 ffffff00 6093267c\n 00000000 6002ec30 6d577c50 60037608\n 00000000 67e8d108 6063717b 00000000\nCall Trace:\n [\u003c6002ec30\u003e] ? _printk+0x0/0x98\n [\u003c6003c2b3\u003e] show_stack+0x10e/0x11a\n [\u003c6002ec30\u003e] ? _printk+0x0/0x98\n [\u003c60037608\u003e] dump_stack_lvl+0x71/0xb8\n [\u003c6063717b\u003e] ? wdev_chandef+0x60/0x165\n [\u003c6003766d\u003e] dump_stack+0x1e/0x20\n [\u003c6005d1b7\u003e] __warn+0x101/0x20f\n [\u003c6005d3a8\u003e] warn_slowpath_fmt+0xe3/0x15d\n [\u003c600b0c5c\u003e] ? mark_lock.part.0+0x0/0x4ec\n [\u003c60751191\u003e] ? __this_cpu_preempt_check+0x0/0x16\n [\u003c600b11a2\u003e] ? mark_held_locks+0x5a/0x6e\n [\u003c6005d2c5\u003e] ? warn_slowpath_fmt+0x0/0x15d\n [\u003c60052e53\u003e] ? unblock_signals+0x3a/0xe7\n [\u003c60052f2d\u003e] ? um_set_signals+0x2d/0x43\n [\u003c60751191\u003e] ? __this_cpu_preempt_check+0x0/0x16\n [\u003c607508b2\u003e] ? lock_is_held_type+0x207/0x21f\n [\u003c6063717b\u003e] wdev_chandef+0x60/0x165\n [\u003c605f89b4\u003e] regulatory_propagate_dfs_state+0x247/0x43f\n [\u003c60052f00\u003e] ? um_set_signals+0x0/0x43\n [\u003c605e6bfd\u003e] cfg80211_propagate_cac_done_wk+0x3a/0x4a\n [\u003c6007e460\u003e] process_scheduled_works+0x3bc/0x60e\n [\u003c6007d0ec\u003e] ? move_linked_works+0x4d/0x81\n [\u003c6007d120\u003e] ? assign_work+0x0/0xaa\n [\u003c6007f81f\u003e] worker_thread+0x220/0x2dc\n [\u003c600786ef\u003e] ? set_pf_worker+0x0/0x57\n [\u003c60087c96\u003e] ? to_kthread+0x0/0x43\n [\u003c6008ab3c\u003e] kthread+0x2d3/0x2e2\n [\u003c6007f5ff\u003e] ? worker_thread+0x0/0x2dc\n [\u003c6006c05b\u003e] ? calculate_sigpending+0x0/0x56\n [\u003c6003b37d\u003e] new_thread_handler+0x4a/0x64\nirq event stamp: 614611\nhardirqs last  enabled at (614621): [\u003c00000000600bc96b\u003e] __up_console_sem+0x82/0xaf\nhardirqs last disabled at (614630): [\u003c00000000600bc92c\u003e] __up_console_sem+0x43/0xaf\nsoftirqs last  enabled at (614268): [\u003c00000000606c55c6\u003e] __ieee80211_wake_queue+0x933/0x985\nsoftirqs last disabled at (614266): [\u003c00000000606c52d6\u003e] __ieee80211_wake_queue+0x643/0x985"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable worker is driven by DFS events on the 802.11 stack \u2014 radar detection, which an attacker in RF range can force on demand by transmitting DFS radar pulse patterns, and CAC completion during normal AP/mesh operation; the racing side is driven by remote peer activity (mesh peering, association, channel switch) on a second radio. This is same-RF-segment reach, matching the WiFi = Adjacent classification.\nAC:L - The attacker controls both sides of the race \u2014 radar-event injection can be repeated indefinitely to re-arm the unlocked worker while over-the-air traffic keeps the second wiphy busy in mutex-protected chanctx work. The guaranteed lockdep WARN in wdev_chandef() needs no race at all, only the multi-radio DFS configuration that is standard on AP/mesh hardware.\nPR:N - No credentials or local account are needed; radar pulse injection and mesh/association frames require no authentication to the target, and CAC-finished events occur during ordinary AP operation. The attacker holds no privileges on the affected system.\nUI:N - No victim action is required \u2014 the worker runs automatically from the cfg80211 workqueue whenever a DFS radar or CAC-finished event propagates to another wiphy.\nS:U - The corruption and crash are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Running __ieee80211_link_release_channel() without the wiphy mutex races chanctx refcounting and can free a struct ieee80211_chanctx still referenced by another link, yielding a use-after-free on a heap object whose contents are influenceable via crafted channel parameters \u2014 a UAF read primitive over kernel memory.\nI:H - The same unsynchronized free/reassign of chanctx state gives a write-after-free into a reallocated slab object, and the unlocked mutation of link chanctx pointers and CAC state corrupts wiphy-mutex-protected structures \u2014 memory corruption exploitable for control-flow hijack.\nA:H - The path unconditionally hits the lockdep_assert_wiphy() WARN in wdev_chandef(), which panics on panic_on_warn systems, and the chanctx refcount/list corruption and use-after-free produce kernel oopses and panics on the affected AP."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:03:39.579Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db"
        },
        {
          "url": "https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1"
        }
      ],
      "title": "wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38643",
    "datePublished": "2025-08-22T16:00:49.172Z",
    "dateReserved": "2025-04-16T04:51:24.030Z",
    "dateUpdated": "2026-08-05T12:03:39.579Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38643",
      "date": "2026-08-06",
      "epss": "0.00177",
      "percentile": "0.07354"
    },
    "microsoft_vex": {
      "current_release_date": "2026-03-31T15:08:25.000Z",
      "cve": "CVE-2025-38643",
      "id": "msrc_CVE-2025-38643",
      "initial_release_date": "2025-08-02T00:00:00.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "8",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-38643.json",
      "version": "6"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38643\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-22T16:15:38.417\",\"lastModified\":\"2026-07-30T06:23:32.673\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()\\n\\nCallers of wdev_chandef() must hold the wiphy mutex.\\n\\nBut the worker cfg80211_propagate_cac_done_wk() never takes the lock.\\nWhich triggers the warning below with the mesh_peer_connected_dfs\\ntest from hostapd and not (yet) released mac80211 code changes:\\n\\nWARNING: CPU: 0 PID: 495 at net/wireless/chan.c:1552 wdev_chandef+0x60/0x165\\nModules linked in:\\nCPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 Not tainted 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf\\nWorkqueue: cfg80211 cfg80211_propagate_cac_done_wk\\nStack:\\n 00000000 00000001 ffffff00 6093267c\\n 00000000 6002ec30 6d577c50 60037608\\n 00000000 67e8d108 6063717b 00000000\\nCall Trace:\\n [\u003c6002ec30\u003e] ? _printk+0x0/0x98\\n [\u003c6003c2b3\u003e] show_stack+0x10e/0x11a\\n [\u003c6002ec30\u003e] ? _printk+0x0/0x98\\n [\u003c60037608\u003e] dump_stack_lvl+0x71/0xb8\\n [\u003c6063717b\u003e] ? wdev_chandef+0x60/0x165\\n [\u003c6003766d\u003e] dump_stack+0x1e/0x20\\n [\u003c6005d1b7\u003e] __warn+0x101/0x20f\\n [\u003c6005d3a8\u003e] warn_slowpath_fmt+0xe3/0x15d\\n [\u003c600b0c5c\u003e] ? mark_lock.part.0+0x0/0x4ec\\n [\u003c60751191\u003e] ? __this_cpu_preempt_check+0x0/0x16\\n [\u003c600b11a2\u003e] ? mark_held_locks+0x5a/0x6e\\n [\u003c6005d2c5\u003e] ? warn_slowpath_fmt+0x0/0x15d\\n [\u003c60052e53\u003e] ? unblock_signals+0x3a/0xe7\\n [\u003c60052f2d\u003e] ? um_set_signals+0x2d/0x43\\n [\u003c60751191\u003e] ? __this_cpu_preempt_check+0x0/0x16\\n [\u003c607508b2\u003e] ? lock_is_held_type+0x207/0x21f\\n [\u003c6063717b\u003e] wdev_chandef+0x60/0x165\\n [\u003c605f89b4\u003e] regulatory_propagate_dfs_state+0x247/0x43f\\n [\u003c60052f00\u003e] ? um_set_signals+0x0/0x43\\n [\u003c605e6bfd\u003e] cfg80211_propagate_cac_done_wk+0x3a/0x4a\\n [\u003c6007e460\u003e] process_scheduled_works+0x3bc/0x60e\\n [\u003c6007d0ec\u003e] ? move_linked_works+0x4d/0x81\\n [\u003c6007d120\u003e] ? assign_work+0x0/0xaa\\n [\u003c6007f81f\u003e] worker_thread+0x220/0x2dc\\n [\u003c600786ef\u003e] ? set_pf_worker+0x0/0x57\\n [\u003c60087c96\u003e] ? to_kthread+0x0/0x43\\n [\u003c6008ab3c\u003e] kthread+0x2d3/0x2e2\\n [\u003c6007f5ff\u003e] ? worker_thread+0x0/0x2dc\\n [\u003c6006c05b\u003e] ? calculate_sigpending+0x0/0x56\\n [\u003c6003b37d\u003e] new_thread_handler+0x4a/0x64\\nirq event stamp: 614611\\nhardirqs last  enabled at (614621): [\u003c00000000600bc96b\u003e] __up_console_sem+0x82/0xaf\\nhardirqs last disabled at (614630): [\u003c00000000600bc92c\u003e] __up_console_sem+0x43/0xaf\\nsoftirqs last  enabled at (614268): [\u003c00000000606c55c6\u003e] __ieee80211_wake_queue+0x933/0x985\\nsoftirqs last disabled at (614266): [\u003c00000000606c52d6\u003e] __ieee80211_wake_queue+0x643/0x985\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: cfg80211: Se ha a\u00f1adido un bloqueo faltante en cfg80211_check_and_end_cac(). Quienes llaman a wdev_chandef() deben mantener el mutex de wiphy. Sin embargo, el trabajador cfg80211_propagate_cac_done_wk() nunca asume el bloqueo. Lo que activa la advertencia a continuaci\u00f3n con la prueba mesh_peer_connected_dfs de hostapd y los cambios de c\u00f3digo mac80211 no publicados (a\u00fan): ADVERTENCIA: CPU: 0 PID: 495 en net/wireless/chan.c:1552 wdev_chandef+0x60/0x165 M\u00f3dulos vinculados: CPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 No contaminado 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf Cola de trabajo: cfg80211 cfg80211_propagate_cac_done_wk Pila: 00000000 00000001 ffffff00 6093267c 00000000 6002ec30 6d577c50 60037608 00000000 67e8d108 6063717b 00000000 Rastreo de llamadas: [\u0026lt;6002ec30\u0026gt;] ? _printk+0x0/0x98 [\u0026lt;6003c2b3\u0026gt;] show_stack+0x10e/0x11a [\u0026lt;6002ec30\u0026gt;] ? _printk+0x0/0x98 [\u0026lt;60037608\u0026gt;] dump_stack_lvl+0x71/0xb8 [\u0026lt;6063717b\u0026gt;] ? __warn+0x101/0x20f [\u0026lt;6005d3a8\u0026gt;] warn_slowpath_fmt+0xe3/0x15d [\u0026lt;600b0c5c\u0026gt;] ? mark_lock.part.0+0x0/0x4ec [\u0026lt;60751191\u0026gt;] ? __this_cpu_preempt_check+0x0/0x16 [\u0026lt;600b11a2\u0026gt;] ? mark_held_locks+0x5a/0x6e [\u0026lt;6005d2c5\u0026gt;] ? warn_slowpath_fmt+0x0/0x15d [\u0026lt;60052e53\u0026gt;] ? unblock_signals+0x3a/0xe7 [\u0026lt;60052f2d\u0026gt;] ? um_set_signals+0x2d/0x43 [\u0026lt;60751191\u0026gt;] ? __this_cpu_preempt_check+0x0/0x16 [\u0026lt;607508b2\u0026gt;] ? lock_is_held_type+0x207/0x21f [\u0026lt;6063717b\u0026gt;] wdev_chandef+0x60/0x165 [\u0026lt;605f89b4\u0026gt;] regulatory_propagate_dfs_state+0x247/0x43f [\u0026lt;60052f00\u0026gt;] ? um_set_signals+0x0/0x43 [\u0026lt;605e6bfd\u0026gt;] cfg80211_propagate_cac_done_wk+0x3a/0x4a [\u0026lt;6007e460\u0026gt;] proceso_trabajos_programados+0x3bc/0x60e [\u0026lt;6007d0ec\u0026gt;] ? mover_trabajos_vinculados+0x4d/0x81 [\u0026lt;6007d120\u0026gt;] ? asignar_trabajo+0x0/0xaa [\u0026lt;6007f81f\u0026gt;] subproceso_trabajador+0x220/0x2dc [\u0026lt;600786ef\u0026gt;] ? establecer_pf_trabajador+0x0/0x57 [\u0026lt;60087c96\u0026gt;] ? hilo_trabajador+0x0/0x2dc [\u0026lt;6006c05b\u0026gt;] ? calculate_sigpending+0x0/0x56 [\u0026lt;6003b37d\u0026gt;] new_thread_handler+0x4a/0x64 marca de evento de irq: 614611 hardirqs habilitados por \u00faltima vez en (614621): [\u0026lt;00000000600bc96b\u0026gt;] __up_console_sem+0x82/0xaf hardirqs deshabilitados por \u00faltima vez en (614630): [\u0026lt;00000000600bc92c\u0026gt;] __up_console_sem+0x43/0xaf softirqs habilitados por \u00faltima vez en (614268): [\u0026lt;00000000606c55c6\u0026gt;] __ieee80211_wake_queue+0x933/0x985 softirqs deshabilitados por \u00faltima vez en (614266): [\u0026lt;00000000606c52d6\u0026gt;] __ieee80211_wake_queue+0x643/0x985\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/wireless/reg.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"defe9ce121160788547e8e6ec4438ad8a14f40dd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"b3d24038eb775f2f7a1dfef58d8e1dc444a12820\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"4a63523d3541eef4cf504a9682e6fbe94ffe79a6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"7022df2248c08c6f75a01714163ac902333bf3db\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"dbce810607726408f889d3358f4780fd1436861e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d\",\"lessThan\":\"2c5dee15239f3f3e31aa5c8808f18996c039e2c1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2dbb6faebb94d6d5ae87e5ea6be9280c366393e1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a4f85674e4693904ade7cbf6722d0d105d8062d8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e233cbaf8ecc5859f0417dd53899da4edb477991\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.14.170\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.102\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.18\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/wireless/reg.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.5\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.164\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.118\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.57\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15.10\",\"lessThanOrEqual\":\"6.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.16.1\",\"lessThanOrEqual\":\"6.16.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"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\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.170\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"483F0C55-BD7E-4F22-87FA-B7E925185143\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.102\",\"versionEndExcluding\":\"4.20\",\"matchCriteriaId\":\"F43F85CE-735B-484D-A9C8-92AED3BFF162\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.18\",\"versionEndExcluding\":\"5.5\",\"matchCriteriaId\":\"96F6F65F-C278-4ADA-9DFF-7B7DE2F5E450\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5.1\",\"versionEndExcluding\":\"6.6.118\",\"matchCriteriaId\":\"901C09B3-81A4-4D6D-AB94-021EEC612417\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.57\",\"matchCriteriaId\":\"32D87516-EE2C-40AC-B9CD-56534A895341\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.15.10\",\"matchCriteriaId\":\"5890C690-B295-40C2-9121-FF5F987E5142\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.16\",\"versionEndExcluding\":\"6.16.1\",\"matchCriteriaId\":\"58182352-D7DF-4CC9-841E-03C1D852C3FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.5:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"EE98F46A-F7D9-4609-B6A0-882E7F0D378C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.5:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"3444D854-CE07-4D25-827A-ECF7BB58EA2D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-30T10:08:46+00:00",
      "cve": "CVE-2025-38643",
      "id": "CVE-2025-38643",
      "initial_release_date": "2025-08-22T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38643.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T00:43:13Z",
      "cve": "CVE-2025-38643",
      "id": "CVE-2025-38643",
      "initial_release_date": "2025-08-22T23:28:41Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "583",
      "product_status:known_not_affected": "99",
      "product_status:recommended": "508",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38643",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38643.json",
      "version": "46"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.