fkie_cve-2024-50153
Vulnerability from fkie_nvd
Published
2024-11-07 10:15
Modified
2025-11-03 23:16
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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: scsi: target: core: Fix null-ptr-deref in target_alloc_device() There is a null-ptr-deref issue reported by KASAN: BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod] ... kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 ... entry_SYSCALL_64_after_hwframe+0x76/0x7e In target_alloc_device(), if allocing memory for dev queues fails, then dev will be freed by dev->transport->free_device(), but dev->transport is not initialized at that time, which will lead to a null pointer reference problem. Fixing this bug by freeing dev with hba->backend->ops->free_device().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033daddPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.10.180
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix null-ptr-deref in target_alloc_device()\n\nThere is a null-ptr-deref issue reported by KASAN:\n\nBUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod]\n...\n kasan_report+0xb9/0xf0\n target_alloc_device+0xbc4/0xbe0 [target_core_mod]\n core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod]\n target_core_init_configfs+0x205/0x420 [target_core_mod]\n do_one_initcall+0xdd/0x4e0\n...\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nIn target_alloc_device(), if allocing memory for dev queues fails, then\ndev will be freed by dev-\u003etransport-\u003efree_device(), but dev-\u003etransport\nis not initialized at that time, which will lead to a null pointer\nreference problem.\n\nFixing this bug by freeing dev with hba-\u003ebackend-\u003eops-\u003efree_device()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: core: Corregir null-ptr-deref en target_alloc_device() KASAN ha informado de un problema de null-ptr-deref: ERROR: KASAN: null-ptr-deref en target_alloc_device+0xbc4/0xbe0 [target_core_mod] ... kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 ... entry_SYSCALL_64_after_hwframe+0x76/0x7e En target_alloc_device(), si falla la asignaci\u00f3n de memoria para las colas dev, dev se liberar\u00e1 mediante dev-\u0026gt;transport-\u0026gt;free_device(), pero dev-\u0026gt;transport no se inicializa en ese momento, lo que generar\u00e1 un problema de referencia de puntero nulo. Se soluciona este error liberando dev con hba-\u0026gt;backend-\u0026gt;ops-\u0026gt;free_device()."
    }
  ],
  "id": "CVE-2024-50153",
  "lastModified": "2025-11-03T23:16:56.057",
  "metrics": {
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          "attackVector": "LOCAL",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2024-11-07T10:15:06.917",
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  "vulnStatus": "Modified",
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}


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