fkie_cve-2024-41081
Vulnerability from fkie_nvd
Published
2024-07-29 15:15
Modified
2025-10-09 18:02
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: ila: block BH in ila_output() As explained in commit 1378817486d6 ("tipc: block BH before using dst_cache"), net/core/dst_cache.c helpers need to be called with BH disabled. ila_output() is called from lwtunnel_output() possibly from process context, and under rcu_read_lock(). We might be interrupted by a softirq, re-enter ila_output() and corrupt dst_cache data structures. Fix the race by using local_bh_disable().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/522c3336c2025818fa05e9daf0ac35711e55e316Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7435bd2f84a25aba607030237261b3795ba782daPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96103371091c6476eb07f4c66624bdd1b42f758aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f9c79d8e527d867e0875868b14fb76e6011e70cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0cafb7b0b94d18e4813ee4b712a056f280e7b5aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4eb25a3d70df925a9fa4e82d17a958a0a228f5fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf28ff8e4c02e1ffa850755288ac954b6ff0db8cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/feac2391e26b086f73be30e9b1ab215eada8d830Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/522c3336c2025818fa05e9daf0ac35711e55e316Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7435bd2f84a25aba607030237261b3795ba782daPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/96103371091c6476eb07f4c66624bdd1b42f758aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9f9c79d8e527d867e0875868b14fb76e6011e70cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0cafb7b0b94d18e4813ee4b712a056f280e7b5aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b4eb25a3d70df925a9fa4e82d17a958a0a228f5fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cf28ff8e4c02e1ffa850755288ac954b6ff0db8cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/feac2391e26b086f73be30e9b1ab215eada8d830Patch
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


To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nila: block BH in ila_output()\n\nAs explained in commit 1378817486d6 (\"tipc: block BH\nbefore using dst_cache\"), net/core/dst_cache.c\nhelpers need to be called with BH disabled.\n\nila_output() is called from lwtunnel_output()\npossibly from process context, and under rcu_read_lock().\n\nWe might be interrupted by a softirq, re-enter ila_output()\nand corrupt dst_cache data structures.\n\nFix the race by using local_bh_disable()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ila: bloquear BH en ila_output() Como se explica en la confirmaci\u00f3n 1378817486d6 (\"tipc: bloquear BH antes de usar dst_cache\"), los ayudantes net/core/dst_cache.c deben llamarse con BH desactivado. ila_output() se llama desde lwtunnel_output() posiblemente desde el contexto del proceso y bajo rcu_read_lock(). Podr\u00edamos ser interrumpidos por un softirq, volver a ingresar a ila_output() y da\u00f1ar las estructuras de datos dst_cache. Arregle la carrera usando local_bh_disable()."
    }
  ],
  "id": "CVE-2024-41081",
  "lastModified": "2025-10-09T18:02:39.120",
  "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"
      }
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  },
  "published": "2024-07-29T15:15:15.593",
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
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}


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