FKIE_CVE-2024-40912

Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2025-11-03 22:17
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup() The ieee80211_sta_ps_deliver_wakeup() function takes sta->ps_lock to synchronizes with ieee80211_tx_h_unicast_ps_buf() which is called from softirq context. However using only spin_lock() to get sta->ps_lock in ieee80211_sta_ps_deliver_wakeup() does not prevent softirq to execute on this same CPU, to run ieee80211_tx_h_unicast_ps_buf() and try to take this same lock ending in deadlock. Below is an example of rcu stall that arises in such situation. rcu: INFO: rcu_sched self-detected stall on CPU rcu: 2-....: (42413413 ticks this GP) idle=b154/1/0x4000000000000000 softirq=1763/1765 fqs=21206996 rcu: (t=42586894 jiffies g=2057 q=362405 ncpus=4) CPU: 2 PID: 719 Comm: wpa_supplicant Tainted: G W 6.4.0-02158-g1b062f552873 #742 Hardware name: RPT (r1) (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x58/0x2d0 lr : invoke_tx_handlers_early+0x5b4/0x5c0 sp : ffff00001ef64660 x29: ffff00001ef64660 x28: ffff000009bc1070 x27: ffff000009bc0ad8 x26: ffff000009bc0900 x25: ffff00001ef647a8 x24: 0000000000000000 x23: ffff000009bc0900 x22: ffff000009bc0900 x21: ffff00000ac0e000 x20: ffff00000a279e00 x19: ffff00001ef646e8 x18: 0000000000000000 x17: ffff800016468000 x16: ffff00001ef608c0 x15: 0010533c93f64f80 x14: 0010395c9faa3946 x13: 0000000000000000 x12: 00000000fa83b2da x11: 000000012edeceea x10: ffff0000010fbe00 x9 : 0000000000895440 x8 : 000000000010533c x7 : ffff00000ad8b740 x6 : ffff00000c350880 x5 : 0000000000000007 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00000ac0e0e8 Call trace: queued_spin_lock_slowpath+0x58/0x2d0 ieee80211_tx+0x80/0x12c ieee80211_tx_pending+0x110/0x278 tasklet_action_common.constprop.0+0x10c/0x144 tasklet_action+0x20/0x28 _stext+0x11c/0x284 ____do_softirq+0xc/0x14 call_on_irq_stack+0x24/0x34 do_softirq_own_stack+0x18/0x20 do_softirq+0x74/0x7c __local_bh_enable_ip+0xa0/0xa4 _ieee80211_wake_txqs+0x3b0/0x4b8 __ieee80211_wake_queue+0x12c/0x168 ieee80211_add_pending_skbs+0xec/0x138 ieee80211_sta_ps_deliver_wakeup+0x2a4/0x480 ieee80211_mps_sta_status_update.part.0+0xd8/0x11c ieee80211_mps_sta_status_update+0x18/0x24 sta_apply_parameters+0x3bc/0x4c0 ieee80211_change_station+0x1b8/0x2dc nl80211_set_station+0x444/0x49c genl_family_rcv_msg_doit.isra.0+0xa4/0xfc genl_rcv_msg+0x1b0/0x244 netlink_rcv_skb+0x38/0x10c genl_rcv+0x34/0x48 netlink_unicast+0x254/0x2bc netlink_sendmsg+0x190/0x3b4 ____sys_sendmsg+0x1e8/0x218 ___sys_sendmsg+0x68/0x8c __sys_sendmsg+0x44/0x84 __arm64_sys_sendmsg+0x20/0x28 do_el0_svc+0x6c/0xe8 el0_svc+0x14/0x48 el0t_64_sync_handler+0xb0/0xb4 el0t_64_sync+0x14c/0x150 Using spin_lock_bh()/spin_unlock_bh() instead prevents softirq to raise on the same CPU that is holding the lock.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28ba44d680a30c51cf485a2f5a3b680e66ed3932Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44c06bbde6443de206b30f513100b5670b23fc5ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/456bbb8a31e425177dc0e8d4f98728a560c20e81Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/47d176755d5c0baf284eff039560f8c1ba0ea485Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c49b58b9a2bed707e7638576e54c4bccd97b9ebPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d90bdff79f8e40adf889b5408bfcf521528b169fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e51637e0c66a6f72d134d9f95daa47ea62b43c7ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7e916d693dcb5a297f40312600a82475f2e63bcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/28ba44d680a30c51cf485a2f5a3b680e66ed3932Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/44c06bbde6443de206b30f513100b5670b23fc5ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/456bbb8a31e425177dc0e8d4f98728a560c20e81Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/47d176755d5c0baf284eff039560f8c1ba0ea485Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9c49b58b9a2bed707e7638576e54c4bccd97b9ebPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d90bdff79f8e40adf889b5408bfcf521528b169fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e51637e0c66a6f72d134d9f95daa47ea62b43c7ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e7e916d693dcb5a297f40312600a82475f2e63bcPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.10
linux linux_kernel 6.10
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup()\n\nThe ieee80211_sta_ps_deliver_wakeup() function takes sta-\u003eps_lock to\nsynchronizes with ieee80211_tx_h_unicast_ps_buf() which is called from\nsoftirq context. However using only spin_lock() to get sta-\u003eps_lock in\nieee80211_sta_ps_deliver_wakeup() does not prevent softirq to execute\non this same CPU, to run ieee80211_tx_h_unicast_ps_buf() and try to\ntake this same lock ending in deadlock. Below is an example of rcu stall\nthat arises in such situation.\n\n rcu: INFO: rcu_sched self-detected stall on CPU\n rcu:    2-....: (42413413 ticks this GP) idle=b154/1/0x4000000000000000 softirq=1763/1765 fqs=21206996\n rcu:    (t=42586894 jiffies g=2057 q=362405 ncpus=4)\n CPU: 2 PID: 719 Comm: wpa_supplicant Tainted: G        W          6.4.0-02158-g1b062f552873 #742\n Hardware name: RPT (r1) (DT)\n pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : queued_spin_lock_slowpath+0x58/0x2d0\n lr : invoke_tx_handlers_early+0x5b4/0x5c0\n sp : ffff00001ef64660\n x29: ffff00001ef64660 x28: ffff000009bc1070 x27: ffff000009bc0ad8\n x26: ffff000009bc0900 x25: ffff00001ef647a8 x24: 0000000000000000\n x23: ffff000009bc0900 x22: ffff000009bc0900 x21: ffff00000ac0e000\n x20: ffff00000a279e00 x19: ffff00001ef646e8 x18: 0000000000000000\n x17: ffff800016468000 x16: ffff00001ef608c0 x15: 0010533c93f64f80\n x14: 0010395c9faa3946 x13: 0000000000000000 x12: 00000000fa83b2da\n x11: 000000012edeceea x10: ffff0000010fbe00 x9 : 0000000000895440\n x8 : 000000000010533c x7 : ffff00000ad8b740 x6 : ffff00000c350880\n x5 : 0000000000000007 x4 : 0000000000000001 x3 : 0000000000000000\n x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00000ac0e0e8\n Call trace:\n  queued_spin_lock_slowpath+0x58/0x2d0\n  ieee80211_tx+0x80/0x12c\n  ieee80211_tx_pending+0x110/0x278\n  tasklet_action_common.constprop.0+0x10c/0x144\n  tasklet_action+0x20/0x28\n  _stext+0x11c/0x284\n  ____do_softirq+0xc/0x14\n  call_on_irq_stack+0x24/0x34\n  do_softirq_own_stack+0x18/0x20\n  do_softirq+0x74/0x7c\n  __local_bh_enable_ip+0xa0/0xa4\n  _ieee80211_wake_txqs+0x3b0/0x4b8\n  __ieee80211_wake_queue+0x12c/0x168\n  ieee80211_add_pending_skbs+0xec/0x138\n  ieee80211_sta_ps_deliver_wakeup+0x2a4/0x480\n  ieee80211_mps_sta_status_update.part.0+0xd8/0x11c\n  ieee80211_mps_sta_status_update+0x18/0x24\n  sta_apply_parameters+0x3bc/0x4c0\n  ieee80211_change_station+0x1b8/0x2dc\n  nl80211_set_station+0x444/0x49c\n  genl_family_rcv_msg_doit.isra.0+0xa4/0xfc\n  genl_rcv_msg+0x1b0/0x244\n  netlink_rcv_skb+0x38/0x10c\n  genl_rcv+0x34/0x48\n  netlink_unicast+0x254/0x2bc\n  netlink_sendmsg+0x190/0x3b4\n  ____sys_sendmsg+0x1e8/0x218\n  ___sys_sendmsg+0x68/0x8c\n  __sys_sendmsg+0x44/0x84\n  __arm64_sys_sendmsg+0x20/0x28\n  do_el0_svc+0x6c/0xe8\n  el0_svc+0x14/0x48\n  el0t_64_sync_handler+0xb0/0xb4\n  el0t_64_sync+0x14c/0x150\n\nUsing spin_lock_bh()/spin_unlock_bh() instead prevents softirq to raise\non the same CPU that is holding the lock."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wifi: mac80211: corrige el punto muerto en ieee80211_sta_ps_deliver_wakeup() La funci\u00f3n ieee80211_sta_ps_deliver_wakeup() toma sta-\u0026gt;ps_lock para sincronizarse con ieee80211_tx_h_unicast_ps_buf() que se llama desde el contexto softirq. Sin embargo, usar solo spin_lock() para obtener sta-\u0026gt;ps_lock en ieee80211_sta_ps_deliver_wakeup() no impide que softirq se ejecute en esta misma CPU, ejecute ieee80211_tx_h_unicast_ps_buf() e intente tomar este mismo bloqueo que termina en punto muerto. A continuaci\u00f3n se muestra un ejemplo de bloqueo de rcu que surge en tal situaci\u00f3n. rcu: INFORMACI\u00d3N: rcu_sched autodetectado bloqueo en la CPU rcu: 2-....: (42413413 marca este GP) idle=b154/1/0x40000000000000000 softirq=1763/1765 fqs=21206996 rcu: (t=42586894 santiam\u00e9n g= 2057 q=362405 ncpus=4) CPU: 2 PID: 719 Comm: wpa_supplicant Contaminado: GW 6.4.0-02158-g1b062f552873 #742 Nombre de hardware: RPT (r1) (DT) pstate: 00000005 (nzcv daif -PAN -UAO - TCO -DIT -SSBS BTYPE=--) pc: queued_spin_lock_slowpath+0x58/0x2d0 lr: invoke_tx_handlers_early+0x5b4/0x5c0 sp: ffff00001ef64660 x29: ffff00001ef64660 x28: ffff000009bc1070 : ffff000009bc0ad8 x26: ffff000009bc0900 x25: ffff00001ef647a8 x24: 0000000000000000 x23: ffff000009bc0900 x22: ffff000009bc0900 x21: ffff00000ac0e000 x20: ffff00000a279e00 x19: ffff00001ef646e8 x18: 0000000000000000 x17: ffff800016468000 x16: 08c0 x15: 0010533c93f64f80 x14: 0010395c9faa3946 x13: 0000000000000000 x12: 00000000fa83b2da x11: 000000012edeceea x10: ffff0000010fbe00 0000000000895440 x8: 000000000010533c x7: ffff00000ad8b740 x6: ffff00000c350880 x5 : 0000000000000007 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00000ac0e0e8 Rastreo de llamadas: pin_lock_slowpath+0x58/0x2d0 ieee80211_tx+0x80/0x12c ieee80211_tx_pending+0x110/0x278 tasklet_action_common.constprop.0+0x10c/0x144 tasklet_action+0x20/0x28 _stext +0x11c/0x284 ____do_softirq+0xc/0x14 call_on_irq_stack+0x24/0x34 do_softirq_own_stack+0x18/0x20 do_softirq+0x74/0x7c __local_bh_enable_ip+0xa0/0xa4 _ieee80211_wake_txqs+0x3b0 /0x4b8 __ieee80211_wake_queue+0x12c/0x168 ieee80211_add_pending_skbs+0xec/0x138 ieee80211_sta_ps_deliver_wakeup+0x2a4/0x480 ieee80211_mps_sta_status_update .part.0+0xd8/0x11c ieee80211_mps_sta_status_update+0x18/0x24 sta_apply_parameters+0x3bc/0x4c0 ieee80211_change_station+0x1b8/0x2dc nl80211_set_station+0x444/0x49c genl_family_rcv_ms g_doit.isra.0+0xa4/0xfc genl_rcv_msg+0x1b0/0x244 netlink_rcv_skb+0x38/0x10c genl_rcv+0x34 /0x48 netlink_unicast+0x254/0x2bc netlink_sendmsg+0x190/0x3b4 ____sys_sendmsg+0x1e8/0x218 ___sys_sendmsg+0x68/0x8c __sys_sendmsg+0x44/0x84 __arm64_sys_sendmsg+0x 20/0x28 do_el0_svc+0x6c/0xe8 el0_svc+0x14/0x48 el0t_64_sync_handler+0xb0/0xb4 el0t_64_sync+0x14c /0x150 El uso de spin_lock_bh()/spin_unlock_bh() en su lugar evita que softirq se active en la misma CPU que mantiene el bloqueo."
    }
  ],
  "id": "CVE-2024-40912",
  "lastModified": "2025-11-03T22:17:13.290",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-12T13:15:14.363",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/28ba44d680a30c51cf485a2f5a3b680e66ed3932"
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    {
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    {
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    {
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    },
    {
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e7e916d693dcb5a297f40312600a82475f2e63bc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.