CVE-2022-50164 (GCVE-0-2022-50164)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2026-08-05 08:57
VLAI
Title
wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue After successfull station association, if station queues are disabled for some reason, the related lists are not emptied. So if some new element is added to the list in iwl_mvm_mac_wake_tx_queue, it can match with the old one and produce a BUG like this: [ 46.535263] list_add corruption. prev->next should be next (ffff94c1c318a360), but was 0000000000000000. (prev=ffff94c1d02d3388). [ 46.535283] ------------[ cut here ]------------ [ 46.535284] kernel BUG at lib/list_debug.c:26! [ 46.535290] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 46.585304] CPU: 0 PID: 623 Comm: wpa_supplicant Not tainted 5.19.0-rc3+ #1 [ 46.592380] Hardware name: Dell Inc. Inspiron 660s/0478VN , BIOS A07 08/24/2012 [ 46.600336] RIP: 0010:__list_add_valid.cold+0x3d/0x3f [ 46.605475] Code: f2 4c 89 c1 48 89 fe 48 c7 c7 c8 40 67 93 e8 20 cc fd ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 70 40 67 93 e8 09 cc fd ff <0f> 0b 48 89 fe 48 c7 c7 00 41 67 93 e8 f8 cb fd ff 0f 0b 48 89 d1 [ 46.624469] RSP: 0018:ffffb20800ab76d8 EFLAGS: 00010286 [ 46.629854] RAX: 0000000000000075 RBX: ffff94c1c318a0e0 RCX: 0000000000000000 [ 46.637105] RDX: 0000000000000201 RSI: ffffffff9365e100 RDI: 00000000ffffffff [ 46.644356] RBP: ffff94c1c5f43370 R08: 0000000000000075 R09: 3064316334396666 [ 46.651607] R10: 3364323064316334 R11: 39666666663d7665 R12: ffff94c1c5f43388 [ 46.658857] R13: ffff94c1d02d3388 R14: ffff94c1c318a360 R15: ffff94c1cf2289c0 [ 46.666108] FS: 00007f65634ff7c0(0000) GS:ffff94c1da200000(0000) knlGS:0000000000000000 [ 46.674331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.680170] CR2: 00007f7dfe984460 CR3: 000000010e894003 CR4: 00000000000606f0 [ 46.687422] Call Trace: [ 46.689906] <TASK> [ 46.691950] iwl_mvm_mac_wake_tx_queue+0xec/0x15c [iwlmvm] [ 46.697601] ieee80211_queue_skb+0x4b3/0x720 [mac80211] [ 46.702973] ? sta_info_get+0x46/0x60 [mac80211] [ 46.707703] ieee80211_tx+0xad/0x110 [mac80211] [ 46.712355] __ieee80211_tx_skb_tid_band+0x71/0x90 [mac80211] ... In order to avoid this problem, we must also remove the related lists when station queues are disabled.
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 CPE status
Linux Linux Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < 5cca5f714fe6cedd2df9d8451ad8df21e6464f62 (git)
Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < 38d71acc15a2e72806b516380af0adb3830d4639 (git)
Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < 4a40af2b0b9517fca7ae2a030c9c0a16836303c0 (git)
Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < ff068c25bf90d26f0aee1751553f18076b797e8d (git)
Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < 182d3c1385f44ba7c508bf5b1292a7fe96ad4e9e (git)
Affected: cfbc6c4c5b91c7725ef14465b98ac347d31f2334 , < 14a3aacf517a9de725dd3219dbbcf741e31763c4 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.137 , ≤ 5.10.* (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue\n\nAfter successfull station association, if station queues are disabled for\nsome reason, the related lists are not emptied. So if some new element is\nadded to the list in iwl_mvm_mac_wake_tx_queue, it can match with the old\none and produce a BUG like this:\n\n[   46.535263] list_add corruption. prev-\u003enext should be next (ffff94c1c318a360), but was 0000000000000000. (prev=ffff94c1d02d3388).\n[   46.535283] ------------[ cut here ]------------\n[   46.535284] kernel BUG at lib/list_debug.c:26!\n[   46.535290] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[   46.585304] CPU: 0 PID: 623 Comm: wpa_supplicant Not tainted 5.19.0-rc3+ #1\n[   46.592380] Hardware name: Dell Inc. Inspiron 660s/0478VN       , BIOS A07 08/24/2012\n[   46.600336] RIP: 0010:__list_add_valid.cold+0x3d/0x3f\n[   46.605475] Code: f2 4c 89 c1 48 89 fe 48 c7 c7 c8 40 67 93 e8 20 cc fd ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 70 40 67 93 e8 09 cc fd ff \u003c0f\u003e 0b 48 89 fe 48 c7 c7 00 41 67 93 e8 f8 cb fd ff 0f 0b 48 89 d1\n[   46.624469] RSP: 0018:ffffb20800ab76d8 EFLAGS: 00010286\n[   46.629854] RAX: 0000000000000075 RBX: ffff94c1c318a0e0 RCX: 0000000000000000\n[   46.637105] RDX: 0000000000000201 RSI: ffffffff9365e100 RDI: 00000000ffffffff\n[   46.644356] RBP: ffff94c1c5f43370 R08: 0000000000000075 R09: 3064316334396666\n[   46.651607] R10: 3364323064316334 R11: 39666666663d7665 R12: ffff94c1c5f43388\n[   46.658857] R13: ffff94c1d02d3388 R14: ffff94c1c318a360 R15: ffff94c1cf2289c0\n[   46.666108] FS:  00007f65634ff7c0(0000) GS:ffff94c1da200000(0000) knlGS:0000000000000000\n[   46.674331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   46.680170] CR2: 00007f7dfe984460 CR3: 000000010e894003 CR4: 00000000000606f0\n[   46.687422] Call Trace:\n[   46.689906]  \u003cTASK\u003e\n[   46.691950]  iwl_mvm_mac_wake_tx_queue+0xec/0x15c [iwlmvm]\n[   46.697601]  ieee80211_queue_skb+0x4b3/0x720 [mac80211]\n[   46.702973]  ? sta_info_get+0x46/0x60 [mac80211]\n[   46.707703]  ieee80211_tx+0xad/0x110 [mac80211]\n[   46.712355]  __ieee80211_tx_skb_tid_band+0x71/0x90 [mac80211]\n...\n\nIn order to avoid this problem, we must also remove the related lists when\nstation queues are disabled."
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              "value": "AV:A - The bug is in iwlwifi station TXQ lifecycle reached when a WiFi peer associates/disconnects and elicits TX (SoftAP client or association with an AP on the same RF segment), so exploitation is from an adjacent wireless attacker rather than a local account or remote internet path.\nAC:L - An adjacent attacker can reliably drive association, traffic, and station removal that hit disable_sta_queues then wake_tx_queue; Red Hat reproduced the failure, and the vulnerable list_add path had no lock, so success does not depend on conditions outside attacker influence.\nPR:N - No privileges on the victim OS are required\u2014only the ability to participate as a WiFi peer (e.g., connect to a hotspot or complete association), which does not grant local user rights.\nUI:N - No victim user action is required beyond the device already operating WiFi/AP mode; the attacker triggers the path through peer association and traffic alone.\nS:U - Impact remains within the local kernel\u2019s authority (crash or memory corruption leading to privilege escalation on the same host), with no VM/IOMMU/sandbox boundary crossed.\nC:H - Double list_add corrupts kernel linked-list metadata; without DEBUG_LIST this is exploitable memory corruption that can be leveraged for arbitrary read primitives, so confidentiality impact is High.\nI:H - Kernel list corruption yields classic write-what-where primitives via subsequent list operations and can be used for control-flow hijacking, so integrity impact is High.\nA:H - The observed failure is a kernel BUG in list_debug (and list corruption can oops/panic even without BUG_ON_DATA_CORRUPTION), so availability impact is High."
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      "title": "wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue",
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue\n\nAfter successfull station association, if station queues are disabled for\nsome reason, the related lists are not emptied. So if some new element is\nadded to the list in iwl_mvm_mac_wake_tx_queue, it can match with the old\none and produce a BUG like this:\n\n[   46.535263] list_add corruption. prev-\u003enext should be next (ffff94c1c318a360), but was 0000000000000000. (prev=ffff94c1d02d3388).\n[   46.535283] ------------[ cut here ]------------\n[   46.535284] kernel BUG at lib/list_debug.c:26!\n[   46.535290] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[   46.585304] CPU: 0 PID: 623 Comm: wpa_supplicant Not tainted 5.19.0-rc3+ #1\n[   46.592380] Hardware name: Dell Inc. Inspiron 660s/0478VN       , BIOS A07 08/24/2012\n[   46.600336] RIP: 0010:__list_add_valid.cold+0x3d/0x3f\n[   46.605475] Code: f2 4c 89 c1 48 89 fe 48 c7 c7 c8 40 67 93 e8 20 cc fd ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 70 40 67 93 e8 09 cc fd ff \u003c0f\u003e 0b 48 89 fe 48 c7 c7 00 41 67 93 e8 f8 cb fd ff 0f 0b 48 89 d1\n[   46.624469] RSP: 0018:ffffb20800ab76d8 EFLAGS: 00010286\n[   46.629854] RAX: 0000000000000075 RBX: ffff94c1c318a0e0 RCX: 0000000000000000\n[   46.637105] RDX: 0000000000000201 RSI: ffffffff9365e100 RDI: 00000000ffffffff\n[   46.644356] RBP: ffff94c1c5f43370 R08: 0000000000000075 R09: 3064316334396666\n[   46.651607] R10: 3364323064316334 R11: 39666666663d7665 R12: ffff94c1c5f43388\n[   46.658857] R13: ffff94c1d02d3388 R14: ffff94c1c318a360 R15: ffff94c1cf2289c0\n[   46.666108] FS:  00007f65634ff7c0(0000) GS:ffff94c1da200000(0000) knlGS:0000000000000000\n[   46.674331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   46.680170] CR2: 00007f7dfe984460 CR3: 000000010e894003 CR4: 00000000000606f0\n[   46.687422] Call Trace:\n[   46.689906]  \u003cTASK\u003e\n[   46.691950]  iwl_mvm_mac_wake_tx_queue+0xec/0x15c [iwlmvm]\n[   46.697601]  ieee80211_queue_skb+0x4b3/0x720 [mac80211]\n[   46.702973]  ? sta_info_get+0x46/0x60 [mac80211]\n[   46.707703]  ieee80211_tx+0xad/0x110 [mac80211]\n[   46.712355]  __ieee80211_tx_skb_tid_band+0x71/0x90 [mac80211]\n...\n\nIn order to avoid this problem, we must also remove the related lists when\nstation queues are disabled."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: mvm: correcci\u00f3n de un error de list_add doble en iwl_mvm_mac_wake_tx_queue. Tras la asociaci\u00f3n correcta de estaciones, si las colas de estaciones se deshabilitan por alg\u00fan motivo, las listas relacionadas no se vac\u00edan. Por lo tanto, si se a\u00f1ade un nuevo elemento a la lista en iwl_mvm_mac_wake_tx_queue, este puede coincidir con el anterior y generar un error como este: [46.535263] list_add corrupto. prev-\u0026gt;next deber\u00eda ser next (ffff94c1c318a360), pero era 0000000000000000. (prev=ffff94c1d02d3388). [ 46.535283] ------------[ cortar aqu\u00ed ]------------ [ 46.535284] \u00a1ERROR del kernel en lib/list_debug.c:26! [ 46.535290] C\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP PTI [ 46.585304] CPU: 0 PID: 623 Comm: wpa_supplicant No contaminado 5.19.0-rc3+ #1 [ 46.592380] Nombre del hardware: Dell Inc. Inspiron 660s/0478VN, BIOS A07 24/08/2012 [ 46.600336] RIP: 0010:__list_add_valid.cold+0x3d/0x3f [ 46.605475] C\u00f3digo: f2 4c 89 c1 48 89 fe 48 c7 c7 c8 40 67 93 e8 20 cc fd ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 70 40 67 93 e8 09 cc fd ff \u0026lt;0f\u0026gt; 0b 48 89 fe 48 c7 c7 00 41 67 93 e8 f8 cb fd ff 0f 0b 48 89 d1 [ 46.624469] RSP: 0018:ffffb20800ab76d8 EFLAGS: 00010286 [ 46.629854] RAX: 000000000000075 RBX: ffff94c1c318a0e0 RCX: 0000000000000000 [ 46.637105] RDX: 0000000000000201 RSI: ffffffff9365e100 RDI: 00000000ffffffff [ 46.644356] RBP: ffff94c1c5f43370 R08: 000000000000075 R09: 3064316334396666 [ 46.651607] R10: 3364323064316334 R11: 39666666663d7665 R12: ffff94c1c5f43388 [ 46.658857] R13: ffff94c1d02d3388 R14: ffff94c1c318a360 R15: ffff94c1cf2289c0 [ 46.666108] FS: 00007f65634ff7c0(0000) GS:ffff94c1da200000(0000) knlGS:0000000000000000 [ 46.674331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.680170] CR2: 00007f7dfe984460 CR3: 000000010e894003 CR4: 00000000000606f0 [ 46.687422] Rastreo de llamadas: [ 46.689906]  [ 46.691950] iwl_mvm_mac_wake_tx_queue+0xec/0x15c [iwlmvm] [ 46.697601] ieee80211_queue_skb+0x4b3/0x720 [mac80211] [ 46.702973] ? sta_info_get+0x46/0x60 [mac80211] [ 46.707703] ieee80211_tx+0xad/0x110 [mac80211] [ 46.712355] __ieee80211_tx_skb_tid_band+0x71/0x90 [mac80211] ... Para evitar este problema, tambi\u00e9n debemos eliminar las listas relacionadas cuando las colas de estaciones est\u00e9n deshabilitadas."
          }
        ],
        "id": "CVE-2022-50164",
        "lastModified": "2026-08-04T10:18:06.290",
        "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": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T11:15:46.677",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/14a3aacf517a9de725dd3219dbbcf741e31763c4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/182d3c1385f44ba7c508bf5b1292a7fe96ad4e9e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/38d71acc15a2e72806b516380af0adb3830d4639"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4a40af2b0b9517fca7ae2a030c9c0a16836303c0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5cca5f714fe6cedd2df9d8451ad8df21e6464f62"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ff068c25bf90d26f0aee1751553f18076b797e8d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-415"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:40:24+00:00",
      "cve": "CVE-2022-50164",
      "id": "CVE-2022-50164",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "450",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "134",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50164.json",
      "version": "3"
    }
  }
}



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.