FKIE_CVE-2024-40980

Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2026-06-17 07:47
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: drop_monitor: replace spin_lock by raw_spin_lock trace_drop_common() is called with preemption disabled, and it acquires a spin_lock. This is problematic for RT kernels because spin_locks are sleeping locks in this configuration, which causes the following splat: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 449, name: rcuc/47 preempt_count: 1, expected: 0 RCU nest depth: 2, expected: 2 5 locks held by rcuc/47/449: #0: ff1100086ec30a60 ((softirq_ctrl.lock)){+.+.}-{2:2}, at: __local_bh_disable_ip+0x105/0x210 #1: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: rt_spin_lock+0xbf/0x130 #2: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: __local_bh_disable_ip+0x11c/0x210 #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x360/0xc70 #4: ff1100086ee07520 (&data->lock){+.+.}-{2:2}, at: trace_drop_common.constprop.0+0xb5/0x290 irq event stamp: 139909 hardirqs last enabled at (139908): [<ffffffffb1df2b33>] _raw_spin_unlock_irqrestore+0x63/0x80 hardirqs last disabled at (139909): [<ffffffffb19bd03d>] trace_drop_common.constprop.0+0x26d/0x290 softirqs last enabled at (139892): [<ffffffffb07a1083>] __local_bh_enable_ip+0x103/0x170 softirqs last disabled at (139898): [<ffffffffb0909b33>] rcu_cpu_kthread+0x93/0x1f0 Preemption disabled at: [<ffffffffb1de786b>] rt_mutex_slowunlock+0xab/0x2e0 CPU: 47 PID: 449 Comm: rcuc/47 Not tainted 6.9.0-rc2-rt1+ #7 Hardware name: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 04/15/2022 Call Trace: <TASK> dump_stack_lvl+0x8c/0xd0 dump_stack+0x14/0x20 __might_resched+0x21e/0x2f0 rt_spin_lock+0x5e/0x130 ? trace_drop_common.constprop.0+0xb5/0x290 ? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_drop_common.constprop.0+0xb5/0x290 ? preempt_count_sub+0x1c/0xd0 ? _raw_spin_unlock_irqrestore+0x4a/0x80 ? __pfx_trace_drop_common.constprop.0+0x10/0x10 ? rt_mutex_slowunlock+0x26a/0x2e0 ? skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_rt_mutex_slowunlock+0x10/0x10 ? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_kfree_skb_hit+0x15/0x20 trace_kfree_skb+0xe9/0x150 kfree_skb_reason+0x7b/0x110 skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10 ? mark_lock.part.0+0x8a/0x520 ... trace_drop_common() also disables interrupts, but this is a minor issue because we could easily replace it with a local_lock. Replace the spin_lock with raw_spin_lock to avoid sleeping in atomic context.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dacPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/07ea878684dfb78a9d4f564c39d07e855a9e242ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/594e47957f3fe034645e6885393ce96c12286334Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/76ce2f9125244e1708d29c1d3f9d1d50b347bda0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/96941f29ebcc1e9cbf570dc903f30374909562f5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b3722fb69468693555f531cddda5c30444726dacPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f1e197a665c2148ebc25fe09c53689e60afea195Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f251ccef1d864790e5253386e95544420b7cd8f3Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-265688.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-355557.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-613116.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrop_monitor: replace spin_lock by raw_spin_lock\n\ntrace_drop_common() is called with preemption disabled, and it acquires\na spin_lock. This is problematic for RT kernels because spin_locks are\nsleeping locks in this configuration, which causes the following splat:\n\nBUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 449, name: rcuc/47\npreempt_count: 1, expected: 0\nRCU nest depth: 2, expected: 2\n5 locks held by rcuc/47/449:\n #0: ff1100086ec30a60 ((softirq_ctrl.lock)){+.+.}-{2:2}, at: __local_bh_disable_ip+0x105/0x210\n #1: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: rt_spin_lock+0xbf/0x130\n #2: ffffffffb394a280 (rcu_read_lock){....}-{1:2}, at: __local_bh_disable_ip+0x11c/0x210\n #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x360/0xc70\n #4: ff1100086ee07520 (\u0026data-\u003elock){+.+.}-{2:2}, at: trace_drop_common.constprop.0+0xb5/0x290\nirq event stamp: 139909\nhardirqs last  enabled at (139908): [\u003cffffffffb1df2b33\u003e] _raw_spin_unlock_irqrestore+0x63/0x80\nhardirqs last disabled at (139909): [\u003cffffffffb19bd03d\u003e] trace_drop_common.constprop.0+0x26d/0x290\nsoftirqs last  enabled at (139892): [\u003cffffffffb07a1083\u003e] __local_bh_enable_ip+0x103/0x170\nsoftirqs last disabled at (139898): [\u003cffffffffb0909b33\u003e] rcu_cpu_kthread+0x93/0x1f0\nPreemption disabled at:\n[\u003cffffffffb1de786b\u003e] rt_mutex_slowunlock+0xab/0x2e0\nCPU: 47 PID: 449 Comm: rcuc/47 Not tainted 6.9.0-rc2-rt1+ #7\nHardware name: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 04/15/2022\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x8c/0xd0\n dump_stack+0x14/0x20\n __might_resched+0x21e/0x2f0\n rt_spin_lock+0x5e/0x130\n ? trace_drop_common.constprop.0+0xb5/0x290\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n trace_drop_common.constprop.0+0xb5/0x290\n ? preempt_count_sub+0x1c/0xd0\n ? _raw_spin_unlock_irqrestore+0x4a/0x80\n ? __pfx_trace_drop_common.constprop.0+0x10/0x10\n ? rt_mutex_slowunlock+0x26a/0x2e0\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n ? __pfx_rt_mutex_slowunlock+0x10/0x10\n ? skb_queue_purge_reason.part.0+0x1bf/0x230\n trace_kfree_skb_hit+0x15/0x20\n trace_kfree_skb+0xe9/0x150\n kfree_skb_reason+0x7b/0x110\n skb_queue_purge_reason.part.0+0x1bf/0x230\n ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10\n ? mark_lock.part.0+0x8a/0x520\n...\n\ntrace_drop_common() also disables interrupts, but this is a minor issue\nbecause we could easily replace it with a local_lock.\n\nReplace the spin_lock with raw_spin_lock to avoid sleeping in atomic\ncontext."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: drop_monitor: reemplaza spin_lock por raw_spin_lock Se llama a trace_drop_common() con la preferencia deshabilitada y adquiere un spin_lock. Esto es problem\u00e1tico para los kernels RT porque los spin_locks son bloqueos inactivos en esta configuraci\u00f3n, lo que provoca el siguiente s\u00edmbolo: ERROR: funci\u00f3n inactiva llamada desde un contexto no v\u00e1lido en kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1 , non_block: 0, pid: 449, nombre: rcuc/47 preempt_count: 1, esperado: 0 Profundidad del nido de RCU: 2, esperado: 2 5 bloqueos retenidos por rcuc/47/449: #0: ff1100086ec30a60 ((softirq_ctrl.lock) ){+.+.}-{2:2}, en: __local_bh_disable_ip+0x105/0x210 #1: fffffffffb394a280 (rcu_read_lock){....}-{1:2}, en: rt_spin_lock+0xbf/0x130 #2 : ffffffffb394a280 (rcu_read_lock){....}-{1:2}, en: __local_bh_disable_ip+0x11c/0x210 #3: ffffffffb394a160 (rcu_callback){....}-{0:0}, en: rcu_do_batch+0x360 /0xc70 #4: ff1100086ee07520 (\u0026amp;data-\u0026gt;lock){+.+.}-{2:2}, en: trace_drop_common.constprop.0+0xb5/0x290 sello de evento irq: 139909 hardirqs habilitado por \u00faltima vez en (139908): [ ] _raw_spin_unlock_irqrestore+0x63/0x80 hardirqs deshabilitado por \u00faltima vez en (139909): [] trace_drop_common.constprop.0+0x26d/0x290 softirqs habilitado por \u00faltima vez en (139892): [ ] __local_bh_enable_ip+0x103/0x170 softirqs \u00faltimamente deshabilitado en (139898): [] rcu_cpu_kthread+0x93/0x1f0 Prelaci\u00f3n deshabilitada en: [] rt_mutex_slowunlock+0xab/0x2e0 CPU: 47 PID: 449 Comm: rcuc/47 No contaminado 6.9.0-rc2 - rt1+ #7 Nombre del hardware: Dell Inc. PowerEdge R650/0Y2G81, BIOS 1.6.5 15/04/2022 Seguimiento de llamadas:  dump_stack_lvl+0x8c/0xd0 dump_stack+0x14/0x20 __might_resched+0x21e/0x2f0 rt_spin_lock+0x5e/0x130 ? trace_drop_common.constprop.0+0xb5/0x290? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_drop_common.constprop.0+0xb5/0x290 ? preempt_count_sub+0x1c/0xd0? _raw_spin_unlock_irqrestore+0x4a/0x80? __pfx_trace_drop_common.constprop.0+0x10/0x10? rt_mutex_slowunlock+0x26a/0x2e0? skb_queue_purge_reason.part.0+0x1bf/0x230? __pfx_rt_mutex_slowunlock+0x10/0x10? skb_queue_purge_reason.part.0+0x1bf/0x230 trace_kfree_skb_hit+0x15/0x20 trace_kfree_skb+0xe9/0x150 kfree_skb_reason+0x7b/0x110 skb_queue_purge_reason.part.0+0x1bf/0x230 ? __pfx_skb_queue_purge_reason.part.0+0x10/0x10 ? mark_lock.part.0+0x8a/0x520 ... trace_drop_common() tambi\u00e9n desactiva las interrupciones, pero este es un problema menor porque podr\u00edamos reemplazarlo f\u00e1cilmente con local_lock. Reemplace spin_lock con raw_spin_lock para evitar dormir en un contexto at\u00f3mico."
    }
  ],
  "id": "CVE-2024-40980",
  "lastModified": "2026-06-17T07:47:00.680",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-40980",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T17:02:23.500077Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-07-12T13:15:19.550",
  "references": [
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
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  "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.





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.