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CVE-2022-49238 (GCVE-0-2022-49238)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-08-05 08:54
VLAI
Title
ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855
Summary
In the Linux kernel, the following vulnerability has been resolved: ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855 Commit b4a0f54156ac ("ath11k: move peer delete after vdev stop of station for QCA6390 and WCN6855") is to fix firmware crash by changing the WMI command sequence, but actually skip all the peer delete operation, then it lead commit 58595c9874c6 ("ath11k: Fixing dangling pointer issue upon peer delete failure") not take effect, and then happened a use-after-free warning from KASAN. because the peer->sta is not set to NULL and then used later. Change to only skip the WMI_PEER_DELETE_CMDID for QCA6390/WCN6855. log of user-after-free: [ 534.888665] BUG: KASAN: use-after-free in ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888696] Read of size 8 at addr ffff8881396bb1b8 by task rtcwake/2860 [ 534.888705] CPU: 4 PID: 2860 Comm: rtcwake Kdump: loaded Tainted: G W 5.15.0-wt-ath+ #523 [ 534.888712] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021 [ 534.888716] Call Trace: [ 534.888720] <IRQ> [ 534.888726] dump_stack_lvl+0x57/0x7d [ 534.888736] print_address_description.constprop.0+0x1f/0x170 [ 534.888745] ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888771] kasan_report.cold+0x83/0xdf [ 534.888783] ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888810] ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888840] ath11k_dp_rx_process_mon_status+0x529/0xa70 [ath11k] [ 534.888874] ? ath11k_dp_rx_mon_status_bufs_replenish+0x3f0/0x3f0 [ath11k] [ 534.888897] ? check_prev_add+0x20f0/0x20f0 [ 534.888922] ? __lock_acquire+0xb72/0x1870 [ 534.888937] ? find_held_lock+0x33/0x110 [ 534.888954] ath11k_dp_rx_process_mon_rings+0x297/0x520 [ath11k] [ 534.888981] ? rcu_read_unlock+0x40/0x40 [ 534.888990] ? ath11k_dp_rx_pdev_alloc+0xd90/0xd90 [ath11k] [ 534.889026] ath11k_dp_service_mon_ring+0x67/0xe0 [ath11k] [ 534.889053] ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k] [ 534.889075] call_timer_fn+0x167/0x4a0 [ 534.889084] ? add_timer_on+0x3b0/0x3b0 [ 534.889103] ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370 [ 534.889117] __run_timers.part.0+0x539/0x8b0 [ 534.889123] ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k] [ 534.889157] ? call_timer_fn+0x4a0/0x4a0 [ 534.889164] ? mark_lock_irq+0x1c30/0x1c30 [ 534.889173] ? clockevents_program_event+0xdd/0x280 [ 534.889189] ? mark_held_locks+0xa5/0xe0 [ 534.889203] run_timer_softirq+0x97/0x180 [ 534.889213] __do_softirq+0x276/0x86a [ 534.889230] __irq_exit_rcu+0x11c/0x180 [ 534.889238] irq_exit_rcu+0x5/0x20 [ 534.889244] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 534.889251] </IRQ> [ 534.889254] <TASK> [ 534.889259] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 534.889265] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 [ 534.889271] Code: 74 24 10 e8 ea c2 bf fd 48 89 ef e8 12 53 c0 fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 13 a7 b5 fd 65 8b 05 cc d9 9c 5e 85 c0 74 0a 5b 5d c3 e8 a0 ee [ 534.889276] RSP: 0018:ffffc90002e5f880 EFLAGS: 00000206 [ 534.889284] RAX: 0000000000000006 RBX: 0000000000000200 RCX: ffffffff9f256f10 [ 534.889289] RDX: 0000000000000000 RSI: ffffffffa1c6e420 RDI: 0000000000000001 [ 534.889293] RBP: ffff8881095e6200 R08: 0000000000000001 R09: ffffffffa40d2b8f [ 534.889298] R10: fffffbfff481a571 R11: 0000000000000001 R12: ffff8881095e6e68 [ 534.889302] R13: ffffc90002e5f908 R14: 0000000000000246 R15: 0000000000000000 [ 534.889316] ? mark_lock+0xd0/0x14a0 [ 534.889332] klist_next+0x1d4/0x450 [ 534.889340] ? dpm_wait_for_subordinate+0x2d0/0x2d0 [ 534.889350] device_for_each_child+0xa8/0x140 [ 534.889360] ? device_remove_class_symlinks+0x1b0/0x1b0 [ 534.889370] ? __lock_release+0x4bd/0x9f0 [ 534.889378] ? dpm_suspend+0x26b/0x3f0 [ 534.889390] dpm_wait_for_subordinate+ ---truncated---
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 18:16 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b4a0f54156ac7720de1750b6ea06657c91c52163 , < 400705c50bbf184794c885d1efad7fe9ccf1471a (git)
Affected: b4a0f54156ac7720de1750b6ea06657c91c52163 , < 212ad7cb7d7592669c067125949e0a8e31ce6a0b (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
  "containers": {
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              "attackVector": "LOCAL",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
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            "other": {
              "content": {
                "id": "CVE-2022-49238",
                "options": [
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                    "Exploitation": "none"
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                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T18:16:59.098528Z",
                "version": "2.0.3"
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      "cpeApplicability": [
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              "cpeMatch": [
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath11k: free peer for station when disconnect from AP for QCA6390/WCN6855\n\nCommit b4a0f54156ac (\"ath11k: move peer delete after vdev stop of station\nfor QCA6390 and WCN6855\") is to fix firmware crash by changing the WMI\ncommand sequence, but actually skip all the peer delete operation, then\nit lead commit 58595c9874c6 (\"ath11k: Fixing dangling pointer issue upon\npeer delete failure\") not take effect, and then happened a use-after-free\nwarning from KASAN. because the peer-\u003esta is not set to NULL and then used\nlater.\n\nChange to only skip the WMI_PEER_DELETE_CMDID for QCA6390/WCN6855.\n\nlog of user-after-free:\n\n[  534.888665] BUG: KASAN: use-after-free in ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888696] Read of size 8 at addr ffff8881396bb1b8 by task rtcwake/2860\n\n[  534.888705] CPU: 4 PID: 2860 Comm: rtcwake Kdump: loaded Tainted: G        W         5.15.0-wt-ath+ #523\n[  534.888712] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021\n[  534.888716] Call Trace:\n[  534.888720]  \u003cIRQ\u003e\n[  534.888726]  dump_stack_lvl+0x57/0x7d\n[  534.888736]  print_address_description.constprop.0+0x1f/0x170\n[  534.888745]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888771]  kasan_report.cold+0x83/0xdf\n[  534.888783]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888810]  ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888840]  ath11k_dp_rx_process_mon_status+0x529/0xa70 [ath11k]\n[  534.888874]  ? ath11k_dp_rx_mon_status_bufs_replenish+0x3f0/0x3f0 [ath11k]\n[  534.888897]  ? check_prev_add+0x20f0/0x20f0\n[  534.888922]  ? __lock_acquire+0xb72/0x1870\n[  534.888937]  ? find_held_lock+0x33/0x110\n[  534.888954]  ath11k_dp_rx_process_mon_rings+0x297/0x520 [ath11k]\n[  534.888981]  ? rcu_read_unlock+0x40/0x40\n[  534.888990]  ? ath11k_dp_rx_pdev_alloc+0xd90/0xd90 [ath11k]\n[  534.889026]  ath11k_dp_service_mon_ring+0x67/0xe0 [ath11k]\n[  534.889053]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889075]  call_timer_fn+0x167/0x4a0\n[  534.889084]  ? add_timer_on+0x3b0/0x3b0\n[  534.889103]  ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370\n[  534.889117]  __run_timers.part.0+0x539/0x8b0\n[  534.889123]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889157]  ? call_timer_fn+0x4a0/0x4a0\n[  534.889164]  ? mark_lock_irq+0x1c30/0x1c30\n[  534.889173]  ? clockevents_program_event+0xdd/0x280\n[  534.889189]  ? mark_held_locks+0xa5/0xe0\n[  534.889203]  run_timer_softirq+0x97/0x180\n[  534.889213]  __do_softirq+0x276/0x86a\n[  534.889230]  __irq_exit_rcu+0x11c/0x180\n[  534.889238]  irq_exit_rcu+0x5/0x20\n[  534.889244]  sysvec_apic_timer_interrupt+0x8e/0xc0\n[  534.889251]  \u003c/IRQ\u003e\n[  534.889254]  \u003cTASK\u003e\n[  534.889259]  asm_sysvec_apic_timer_interrupt+0x12/0x20\n[  534.889265] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70\n[  534.889271] Code: 74 24 10 e8 ea c2 bf fd 48 89 ef e8 12 53 c0 fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 \u003ce8\u003e 13 a7 b5 fd 65 8b 05 cc d9 9c 5e 85 c0 74 0a 5b 5d c3 e8 a0 ee\n[  534.889276] RSP: 0018:ffffc90002e5f880 EFLAGS: 00000206\n[  534.889284] RAX: 0000000000000006 RBX: 0000000000000200 RCX: ffffffff9f256f10\n[  534.889289] RDX: 0000000000000000 RSI: ffffffffa1c6e420 RDI: 0000000000000001\n[  534.889293] RBP: ffff8881095e6200 R08: 0000000000000001 R09: ffffffffa40d2b8f\n[  534.889298] R10: fffffbfff481a571 R11: 0000000000000001 R12: ffff8881095e6e68\n[  534.889302] R13: ffffc90002e5f908 R14: 0000000000000246 R15: 0000000000000000\n[  534.889316]  ? mark_lock+0xd0/0x14a0\n[  534.889332]  klist_next+0x1d4/0x450\n[  534.889340]  ? dpm_wait_for_subordinate+0x2d0/0x2d0\n[  534.889350]  device_for_each_child+0xa8/0x140\n[  534.889360]  ? device_remove_class_symlinks+0x1b0/0x1b0\n[  534.889370]  ? __lock_release+0x4bd/0x9f0\n[  534.889378]  ? dpm_suspend+0x26b/0x3f0\n[  534.889390]  dpm_wait_for_subordinate+\n---truncated---"
        }
      ],
      "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 dangling peer-\u003esta is created on station disconnect, which an on-link WiFi peer can force via deauth/disassoc frames processed by ieee80211_rx_mgmt_deauth; the subsequent UAF occurs while ath11k processes WiFi RX monitor status for that peer.\nAC:L - On affected QCA6390/WCN6855 station disconnect the driver deterministically skips nulling peer-\u003esta, leaving a dangling pointer until deferred peer_delete; the attacker controls deauth timing and air traffic that populates mon-status rings, so no conditions beyond attacker control are required.\nPR:N - A same-segment attacker needs no accounts or capabilities on the victim host; forged or AP-originated 802.11 deauth/disassoc frames alone drive mac80211 into the vulnerable ath11k_mac_op_sta_state cleanup path.\nUI:N - Exploitation only requires the device already being associated as in normal operation; the attacker-triggered deauth and subsequent mon-status UAF need no further user action.\nS:U - The corruption stays within the local kernel/driver trust domain and does not cross VM, IOMMU, or other distinct security authorities.\nC:H - This is a confirmed use-after-free of the mac80211 sta object via peer-\u003esta, and per kernel UAF guidance that enables heap reuse and arbitrary disclosure primitives.\nI:H - ath11k_dp_rx_update_peer_stats writes through the freed arsta (rx_stats, rssi, chain_signal, etc.), giving a UAF write primitive suitable for heap corruption and control-flow hijacking.\nA:H - The KASAN report shows kernel use-after-free during mon-ring softirq processing, which can oops/panic and deny service even without full exploitation."
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:54:27.408Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/400705c50bbf184794c885d1efad7fe9ccf1471a"
        },
        {
          "url": "https://git.kernel.org/stable/c/212ad7cb7d7592669c067125949e0a8e31ce6a0b"
        }
      ],
      "title": "ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49238",
    "datePublished": "2025-02-26T01:56:01.716Z",
    "dateReserved": "2025-02-26T01:49:39.294Z",
    "dateUpdated": "2026-08-05T08:54:27.408Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49238",
      "date": "2026-09-18",
      "epss": "0.00291",
      "percentile": "0.21869"
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        "cveTags": [],
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath11k: free peer for station when disconnect from AP for QCA6390/WCN6855\n\nCommit b4a0f54156ac (\"ath11k: move peer delete after vdev stop of station\nfor QCA6390 and WCN6855\") is to fix firmware crash by changing the WMI\ncommand sequence, but actually skip all the peer delete operation, then\nit lead commit 58595c9874c6 (\"ath11k: Fixing dangling pointer issue upon\npeer delete failure\") not take effect, and then happened a use-after-free\nwarning from KASAN. because the peer-\u003esta is not set to NULL and then used\nlater.\n\nChange to only skip the WMI_PEER_DELETE_CMDID for QCA6390/WCN6855.\n\nlog of user-after-free:\n\n[  534.888665] BUG: KASAN: use-after-free in ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888696] Read of size 8 at addr ffff8881396bb1b8 by task rtcwake/2860\n\n[  534.888705] CPU: 4 PID: 2860 Comm: rtcwake Kdump: loaded Tainted: G        W         5.15.0-wt-ath+ #523\n[  534.888712] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021\n[  534.888716] Call Trace:\n[  534.888720]  \u003cIRQ\u003e\n[  534.888726]  dump_stack_lvl+0x57/0x7d\n[  534.888736]  print_address_description.constprop.0+0x1f/0x170\n[  534.888745]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888771]  kasan_report.cold+0x83/0xdf\n[  534.888783]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888810]  ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888840]  ath11k_dp_rx_process_mon_status+0x529/0xa70 [ath11k]\n[  534.888874]  ? ath11k_dp_rx_mon_status_bufs_replenish+0x3f0/0x3f0 [ath11k]\n[  534.888897]  ? check_prev_add+0x20f0/0x20f0\n[  534.888922]  ? __lock_acquire+0xb72/0x1870\n[  534.888937]  ? find_held_lock+0x33/0x110\n[  534.888954]  ath11k_dp_rx_process_mon_rings+0x297/0x520 [ath11k]\n[  534.888981]  ? rcu_read_unlock+0x40/0x40\n[  534.888990]  ? ath11k_dp_rx_pdev_alloc+0xd90/0xd90 [ath11k]\n[  534.889026]  ath11k_dp_service_mon_ring+0x67/0xe0 [ath11k]\n[  534.889053]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889075]  call_timer_fn+0x167/0x4a0\n[  534.889084]  ? add_timer_on+0x3b0/0x3b0\n[  534.889103]  ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370\n[  534.889117]  __run_timers.part.0+0x539/0x8b0\n[  534.889123]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889157]  ? call_timer_fn+0x4a0/0x4a0\n[  534.889164]  ? mark_lock_irq+0x1c30/0x1c30\n[  534.889173]  ? clockevents_program_event+0xdd/0x280\n[  534.889189]  ? mark_held_locks+0xa5/0xe0\n[  534.889203]  run_timer_softirq+0x97/0x180\n[  534.889213]  __do_softirq+0x276/0x86a\n[  534.889230]  __irq_exit_rcu+0x11c/0x180\n[  534.889238]  irq_exit_rcu+0x5/0x20\n[  534.889244]  sysvec_apic_timer_interrupt+0x8e/0xc0\n[  534.889251]  \u003c/IRQ\u003e\n[  534.889254]  \u003cTASK\u003e\n[  534.889259]  asm_sysvec_apic_timer_interrupt+0x12/0x20\n[  534.889265] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70\n[  534.889271] Code: 74 24 10 e8 ea c2 bf fd 48 89 ef e8 12 53 c0 fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 \u003ce8\u003e 13 a7 b5 fd 65 8b 05 cc d9 9c 5e 85 c0 74 0a 5b 5d c3 e8 a0 ee\n[  534.889276] RSP: 0018:ffffc90002e5f880 EFLAGS: 00000206\n[  534.889284] RAX: 0000000000000006 RBX: 0000000000000200 RCX: ffffffff9f256f10\n[  534.889289] RDX: 0000000000000000 RSI: ffffffffa1c6e420 RDI: 0000000000000001\n[  534.889293] RBP: ffff8881095e6200 R08: 0000000000000001 R09: ffffffffa40d2b8f\n[  534.889298] R10: fffffbfff481a571 R11: 0000000000000001 R12: ffff8881095e6e68\n[  534.889302] R13: ffffc90002e5f908 R14: 0000000000000246 R15: 0000000000000000\n[  534.889316]  ? mark_lock+0xd0/0x14a0\n[  534.889332]  klist_next+0x1d4/0x450\n[  534.889340]  ? dpm_wait_for_subordinate+0x2d0/0x2d0\n[  534.889350]  device_for_each_child+0xa8/0x140\n[  534.889360]  ? device_remove_class_symlinks+0x1b0/0x1b0\n[  534.889370]  ? __lock_release+0x4bd/0x9f0\n[  534.889378]  ? dpm_suspend+0x26b/0x3f0\n[  534.889390]  dpm_wait_for_subordinate+\n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ath11k: liberar un peer para la estaci\u00f3n cuando se desconecta del AP para QCA6390/WCN6855. el commit b4a0f54156ac (\"ath11k: mover la eliminaci\u00f3n del peer despu\u00e9s de la detenci\u00f3n del vdev de la estaci\u00f3n para QCA6390 y WCN6855\") es para reparar un fallo del firmware modificando la secuencia de comandos WMI, pero en realidad omite toda la operaci\u00f3n de eliminaci\u00f3n del peer, por lo que el commit 58595c9874c6 (\"ath11k: solucionar el problema del puntero colgante tras un fallo en la eliminaci\u00f3n del peer\") no tiene efecto y, a continuaci\u00f3n, aparece una advertencia de uso tras liberaci\u00f3n de KASAN, porque peer-\u0026gt;sta no est\u00e1 configurado en NULL y se utiliza m\u00e1s tarde. Se cambia para omitir solo WMI_PEER_DELETE_CMDID para QCA6390/WCN6855. registro de usuario despu\u00e9s de liberaci\u00f3n: [ 534.888665] ERROR: KASAN: use-after-free en ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888696] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff8881396bb1b8 por la tarea rtcwake/2860 [ 534.888705] CPU: 4 PID: 2860 Comm: rtcwake Kdump: cargado Tainted: GW 5.15.0-wt-ath+ #523 [ 534.888712] Nombre del hardware: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 28/05/2021 [ 534.888716] Seguimiento de llamadas: [ 534.888720]  [ 534.888726] dump_stack_lvl+0x57/0x7d [ 534.888736] print_address_description.constprop.0+0x1f/0x170 [ 534.888745] ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888771] kasan_report.cold+0x83/0xdf [ 534.888783] ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888810] ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k] [ 534.888840] ath11k_dp_rx_process_mon_status+0x529/0xa70 [ath11k] [ 534.888874] ? ath11k_dp_rx_mon_status_bufs_replenish+0x3f0/0x3f0 [ath11k] [ 534.888897] ? check_prev_add+0x20f0/0x20f0 [ 534.888922] ? __lock_acquire+0xb72/0x1870 [ 534.888937] ? find_held_lock+0x33/0x110 [ 534.888954] ath11k_dp_rx_process_mon_rings+0x297/0x520 [ath11k] [ 534.888981] ? rcu_read_unlock+0x40/0x40 [ 534.888990] ? ath11k_dp_rx_pdev_alloc+0xd90/0xd90 [ath11k] [ 534.889026] ath11k_dp_service_mon_ring+0x67/0xe0 [ath11k] [ 534.889053] ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k] [ 534.889075] call_timer_fn+0x167/0x4a0 [ 534.889084] ? add_timer_on+0x3b0/0x3b0 [ 534.889103] ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370 [ 534.889117] __run_timers.part.0+0x539/0x8b0 [ 534.889123] ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k] [ 534.889157] ? call_timer_fn+0x4a0/0x4a0 [ 534.889164] ? mark_lock_irq+0x1c30/0x1c30 [ 534.889173] ? clockevents_program_event+0xdd/0x280 [ 534.889189] ? mark_held_locks+0xa5/0xe0 [ 534.889203] run_timer_softirq+0x97/0x180 [ 534.889213] __do_softirq+0x276/0x86a [ 534.889230] __irq_exit_rcu+0x11c/0x180 [ 534.889238] irq_exit_rcu+0x5/0x20 [ 534.889244] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 534.889251]  [ 534.889254]  [ 534.889259] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 534.889265] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 [ 534.889271] C\u00f3digo: 74 24 10 e8 ea c2 bf fd 48 89 ef e8 12 53 c0 fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00  13 a7 b5 fd 65 8b 05 cc d9 9c 5e 85 c0 74 0a 5b 5d c3 e8 a0 ee [ 534.889276] RSP: 0018:ffffc90002e5f880 EFLAGS: 00000206 [ 534.889284] RAX: 00000000000000006 RBX: 00000000000000200 RCX: ffffffff9f256f10 [ 534.889289] RDX: 00000000000000000 RSI: fffffffa1c6e420 RDI: 00000000000000001 [ 534.889293] RBP: ffff8881095e6200 R08: 00000000000000001 R09: ffffffffa40d2b8f [ 534.889298] R10: fffffbfff481a571 R11: 0000000000000001 R12: ffff8881095e6e68 [ 534.889302] R13: ffffc90002e5f908 R14: 0000000000000246 R15: 0000000000000000 [ 534.889316] ? mark_lock+0xd0/0x14a0 [ 534.889332] klist_next+0x1d4/0x450 [ 534.889340] ? dpm_wait_for_subordinate+0x2d0/0x2d0 [ 534.889350] device_for_each_child+0xa8/0x140 [ 534.889360] ? device_remove_class_symlinks+0x1b0/0x1b0 [ 534.889370] ? __lock_release+0x4bd/0x9f0 [ 534.889378] ? dpm_suspend+0x26b/0x3f0 [ 534.889390] ---truncado---"
          }
        ],
        "id": "CVE-2022-49238",
        "lastModified": "2026-08-04T10:17:40.977",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-49238",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T18:16:59.098528Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-02-26T07:01:00.790",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/212ad7cb7d7592669c067125949e0a8e31ce6a0b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/400705c50bbf184794c885d1efad7fe9ccf1471a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:43:34+00:00",
      "cve": "CVE-2022-49238",
      "id": "CVE-2022-49238",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "286",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49238.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-29T02:29:27Z",
      "cve": "CVE-2022-49238",
      "id": "CVE-2022-49238",
      "initial_release_date": "2025-02-27T03:10:10Z",
      "product_status:known_affected": "364",
      "product_status:known_not_affected": "406",
      "product_status:recommended": "142",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49238",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49238.json",
      "version": "41"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-49238",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-02-27T18:16:59.098528Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-02-27T18:17:00.427Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath11k/mac.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "400705c50bbf184794c885d1efad7fe9ccf1471a",
                  "status": "affected",
                  "version": "b4a0f54156ac7720de1750b6ea06657c91c52163",
                  "versionType": "git"
                },
                {
                  "lessThan": "212ad7cb7d7592669c067125949e0a8e31ce6a0b",
                  "status": "affected",
                  "version": "b4a0f54156ac7720de1750b6ea06657c91c52163",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath11k/mac.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.17"
                },
                {
                  "lessThan": "5.17",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.18",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.2",
                      "versionStartIncluding": "5.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18",
                      "versionStartIncluding": "5.17",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath11k: free peer for station when disconnect from AP for QCA6390/WCN6855\n\nCommit b4a0f54156ac (\"ath11k: move peer delete after vdev stop of station\nfor QCA6390 and WCN6855\") is to fix firmware crash by changing the WMI\ncommand sequence, but actually skip all the peer delete operation, then\nit lead commit 58595c9874c6 (\"ath11k: Fixing dangling pointer issue upon\npeer delete failure\") not take effect, and then happened a use-after-free\nwarning from KASAN. because the peer-\u003esta is not set to NULL and then used\nlater.\n\nChange to only skip the WMI_PEER_DELETE_CMDID for QCA6390/WCN6855.\n\nlog of user-after-free:\n\n[  534.888665] BUG: KASAN: use-after-free in ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888696] Read of size 8 at addr ffff8881396bb1b8 by task rtcwake/2860\n\n[  534.888705] CPU: 4 PID: 2860 Comm: rtcwake Kdump: loaded Tainted: G        W         5.15.0-wt-ath+ #523\n[  534.888712] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021\n[  534.888716] Call Trace:\n[  534.888720]  \u003cIRQ\u003e\n[  534.888726]  dump_stack_lvl+0x57/0x7d\n[  534.888736]  print_address_description.constprop.0+0x1f/0x170\n[  534.888745]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888771]  kasan_report.cold+0x83/0xdf\n[  534.888783]  ? ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888810]  ath11k_dp_rx_update_peer_stats+0x912/0xc10 [ath11k]\n[  534.888840]  ath11k_dp_rx_process_mon_status+0x529/0xa70 [ath11k]\n[  534.888874]  ? ath11k_dp_rx_mon_status_bufs_replenish+0x3f0/0x3f0 [ath11k]\n[  534.888897]  ? check_prev_add+0x20f0/0x20f0\n[  534.888922]  ? __lock_acquire+0xb72/0x1870\n[  534.888937]  ? find_held_lock+0x33/0x110\n[  534.888954]  ath11k_dp_rx_process_mon_rings+0x297/0x520 [ath11k]\n[  534.888981]  ? rcu_read_unlock+0x40/0x40\n[  534.888990]  ? ath11k_dp_rx_pdev_alloc+0xd90/0xd90 [ath11k]\n[  534.889026]  ath11k_dp_service_mon_ring+0x67/0xe0 [ath11k]\n[  534.889053]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889075]  call_timer_fn+0x167/0x4a0\n[  534.889084]  ? add_timer_on+0x3b0/0x3b0\n[  534.889103]  ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370\n[  534.889117]  __run_timers.part.0+0x539/0x8b0\n[  534.889123]  ? ath11k_dp_rx_process_mon_rings+0x520/0x520 [ath11k]\n[  534.889157]  ? call_timer_fn+0x4a0/0x4a0\n[  534.889164]  ? mark_lock_irq+0x1c30/0x1c30\n[  534.889173]  ? clockevents_program_event+0xdd/0x280\n[  534.889189]  ? mark_held_locks+0xa5/0xe0\n[  534.889203]  run_timer_softirq+0x97/0x180\n[  534.889213]  __do_softirq+0x276/0x86a\n[  534.889230]  __irq_exit_rcu+0x11c/0x180\n[  534.889238]  irq_exit_rcu+0x5/0x20\n[  534.889244]  sysvec_apic_timer_interrupt+0x8e/0xc0\n[  534.889251]  \u003c/IRQ\u003e\n[  534.889254]  \u003cTASK\u003e\n[  534.889259]  asm_sysvec_apic_timer_interrupt+0x12/0x20\n[  534.889265] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70\n[  534.889271] Code: 74 24 10 e8 ea c2 bf fd 48 89 ef e8 12 53 c0 fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 \u003ce8\u003e 13 a7 b5 fd 65 8b 05 cc d9 9c 5e 85 c0 74 0a 5b 5d c3 e8 a0 ee\n[  534.889276] RSP: 0018:ffffc90002e5f880 EFLAGS: 00000206\n[  534.889284] RAX: 0000000000000006 RBX: 0000000000000200 RCX: ffffffff9f256f10\n[  534.889289] RDX: 0000000000000000 RSI: ffffffffa1c6e420 RDI: 0000000000000001\n[  534.889293] RBP: ffff8881095e6200 R08: 0000000000000001 R09: ffffffffa40d2b8f\n[  534.889298] R10: fffffbfff481a571 R11: 0000000000000001 R12: ffff8881095e6e68\n[  534.889302] R13: ffffc90002e5f908 R14: 0000000000000246 R15: 0000000000000000\n[  534.889316]  ? mark_lock+0xd0/0x14a0\n[  534.889332]  klist_next+0x1d4/0x450\n[  534.889340]  ? dpm_wait_for_subordinate+0x2d0/0x2d0\n[  534.889350]  device_for_each_child+0xa8/0x140\n[  534.889360]  ? device_remove_class_symlinks+0x1b0/0x1b0\n[  534.889370]  ? __lock_release+0x4bd/0x9f0\n[  534.889378]  ? dpm_suspend+0x26b/0x3f0\n[  534.889390]  dpm_wait_for_subordinate+\n---truncated---"
            }
          ],
          "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 dangling peer-\u003esta is created on station disconnect, which an on-link WiFi peer can force via deauth/disassoc frames processed by ieee80211_rx_mgmt_deauth; the subsequent UAF occurs while ath11k processes WiFi RX monitor status for that peer.\nAC:L - On affected QCA6390/WCN6855 station disconnect the driver deterministically skips nulling peer-\u003esta, leaving a dangling pointer until deferred peer_delete; the attacker controls deauth timing and air traffic that populates mon-status rings, so no conditions beyond attacker control are required.\nPR:N - A same-segment attacker needs no accounts or capabilities on the victim host; forged or AP-originated 802.11 deauth/disassoc frames alone drive mac80211 into the vulnerable ath11k_mac_op_sta_state cleanup path.\nUI:N - Exploitation only requires the device already being associated as in normal operation; the attacker-triggered deauth and subsequent mon-status UAF need no further user action.\nS:U - The corruption stays within the local kernel/driver trust domain and does not cross VM, IOMMU, or other distinct security authorities.\nC:H - This is a confirmed use-after-free of the mac80211 sta object via peer-\u003esta, and per kernel UAF guidance that enables heap reuse and arbitrary disclosure primitives.\nI:H - ath11k_dp_rx_update_peer_stats writes through the freed arsta (rx_stats, rssi, chain_signal, etc.), giving a UAF write primitive suitable for heap corruption and control-flow hijacking.\nA:H - The KASAN report shows kernel use-after-free during mon-ring softirq processing, which can oops/panic and deny service even without full exploitation."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T08:54:27.408Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/400705c50bbf184794c885d1efad7fe9ccf1471a"
            },
            {
              "url": "https://git.kernel.org/stable/c/212ad7cb7d7592669c067125949e0a8e31ce6a0b"
            }
          ],
          "title": "ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49238",
        "datePublished": "2025-02-26T01:56:01.716Z",
        "dateReserved": "2025-02-26T01:49:39.294Z",
        "dateUpdated": "2026-08-05T08:54:27.408Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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