cve-2024-41096
Vulnerability from cvelistv5
Published
2024-07-29 15:48
Modified
2024-12-19 09:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI/MSI: Fix UAF in msi_capability_init KFENCE reports the following UAF: BUG: KFENCE: use-after-free read in __pci_enable_msi_range+0x2c0/0x488 Use-after-free read at 0x0000000024629571 (in kfence-#12): __pci_enable_msi_range+0x2c0/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 kfence-#12: 0x0000000008614900-0x00000000e06c228d, size=104, cache=kmalloc-128 allocated by task 81 on cpu 7 at 10.808142s: __kmem_cache_alloc_node+0x1f0/0x2bc kmalloc_trace+0x44/0x138 msi_alloc_desc+0x3c/0x9c msi_domain_insert_msi_desc+0x30/0x78 msi_setup_msi_desc+0x13c/0x184 __pci_enable_msi_range+0x258/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 freed by task 81 on cpu 7 at 10.811436s: msi_domain_free_descs+0xd4/0x10c msi_domain_free_locked.part.0+0xc0/0x1d8 msi_domain_alloc_irqs_all_locked+0xb4/0xbc pci_msi_setup_msi_irqs+0x30/0x4c __pci_enable_msi_range+0x2a8/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 Descriptor allocation done in: __pci_enable_msi_range msi_capability_init msi_setup_msi_desc msi_insert_msi_desc msi_domain_insert_msi_desc msi_alloc_desc ... Freed in case of failure in __msi_domain_alloc_locked() __pci_enable_msi_range msi_capability_init pci_msi_setup_msi_irqs msi_domain_alloc_irqs_all_locked msi_domain_alloc_locked __msi_domain_alloc_locked => fails msi_domain_free_locked ... That failure propagates back to pci_msi_setup_msi_irqs() in msi_capability_init() which accesses the descriptor for unmasking in the error exit path. Cure it by copying the descriptor and using the copy for the error exit path unmask operation. [ tglx: Massaged change log ]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ae40b2d0a5de6b045504098e365d4fdff5bbeba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45fc8d20e0768ab0a0ad054081d0f68aa3c83976Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff1121d2214b794dc1772081f27bdd90721a84bcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/45fc8d20e0768ab0a0ad054081d0f68aa3c83976Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ff1121d2214b794dc1772081f27bdd90721a84bcPatch
Impacted products
Vendor Product Version
Linux Linux Version: 5.17
Show details on NVD website

To clipboard 

{
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          "dateUpdated": "2024-08-02T04:46:52.351Z",
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                "id": "CVE-2024-41096",
                "options": [
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                    "Automatable": "no"
                  },
                  {
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                "timestamp": "2024-09-10T16:20:22.209715Z",
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "version": "0",
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              "versionType": "original_commit_for_fix"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/MSI: Fix UAF in msi_capability_init\n\nKFENCE reports the following UAF:\n\n BUG: KFENCE: use-after-free read in __pci_enable_msi_range+0x2c0/0x488\n\n Use-after-free read at 0x0000000024629571 (in kfence-#12):\n  __pci_enable_msi_range+0x2c0/0x488\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\n  pci_alloc_irq_vectors+0x18/0x28\n\n kfence-#12: 0x0000000008614900-0x00000000e06c228d, size=104, cache=kmalloc-128\n\n allocated by task 81 on cpu 7 at 10.808142s:\n  __kmem_cache_alloc_node+0x1f0/0x2bc\n  kmalloc_trace+0x44/0x138\n  msi_alloc_desc+0x3c/0x9c\n  msi_domain_insert_msi_desc+0x30/0x78\n  msi_setup_msi_desc+0x13c/0x184\n  __pci_enable_msi_range+0x258/0x488\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\n  pci_alloc_irq_vectors+0x18/0x28\n\n freed by task 81 on cpu 7 at 10.811436s:\n  msi_domain_free_descs+0xd4/0x10c\n  msi_domain_free_locked.part.0+0xc0/0x1d8\n  msi_domain_alloc_irqs_all_locked+0xb4/0xbc\n  pci_msi_setup_msi_irqs+0x30/0x4c\n  __pci_enable_msi_range+0x2a8/0x488\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\n  pci_alloc_irq_vectors+0x18/0x28\n\nDescriptor allocation done in:\n__pci_enable_msi_range\n    msi_capability_init\n        msi_setup_msi_desc\n            msi_insert_msi_desc\n                msi_domain_insert_msi_desc\n                    msi_alloc_desc\n                        ...\n\nFreed in case of failure in __msi_domain_alloc_locked()\n__pci_enable_msi_range\n    msi_capability_init\n        pci_msi_setup_msi_irqs\n            msi_domain_alloc_irqs_all_locked\n                msi_domain_alloc_locked\n                    __msi_domain_alloc_locked =\u003e fails\n                    msi_domain_free_locked\n                        ...\n\nThat failure propagates back to pci_msi_setup_msi_irqs() in\nmsi_capability_init() which accesses the descriptor for unmasking in the\nerror exit path.\n\nCure it by copying the descriptor and using the copy for the error exit path\nunmask operation.\n\n[ tglx: Massaged change log ]"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-41096",
    "datePublished": "2024-07-29T15:48:09.247Z",
    "dateReserved": "2024-07-12T12:17:45.637Z",
    "dateUpdated": "2024-12-19T09:11:56.250Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-41096\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-29T16:15:04.683\",\"lastModified\":\"2024-11-21T09:32:14.257\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nPCI/MSI: Fix UAF in msi_capability_init\\n\\nKFENCE reports the following UAF:\\n\\n BUG: KFENCE: use-after-free read in __pci_enable_msi_range+0x2c0/0x488\\n\\n Use-after-free read at 0x0000000024629571 (in kfence-#12):\\n  __pci_enable_msi_range+0x2c0/0x488\\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\\n  pci_alloc_irq_vectors+0x18/0x28\\n\\n kfence-#12: 0x0000000008614900-0x00000000e06c228d, size=104, cache=kmalloc-128\\n\\n allocated by task 81 on cpu 7 at 10.808142s:\\n  __kmem_cache_alloc_node+0x1f0/0x2bc\\n  kmalloc_trace+0x44/0x138\\n  msi_alloc_desc+0x3c/0x9c\\n  msi_domain_insert_msi_desc+0x30/0x78\\n  msi_setup_msi_desc+0x13c/0x184\\n  __pci_enable_msi_range+0x258/0x488\\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\\n  pci_alloc_irq_vectors+0x18/0x28\\n\\n freed by task 81 on cpu 7 at 10.811436s:\\n  msi_domain_free_descs+0xd4/0x10c\\n  msi_domain_free_locked.part.0+0xc0/0x1d8\\n  msi_domain_alloc_irqs_all_locked+0xb4/0xbc\\n  pci_msi_setup_msi_irqs+0x30/0x4c\\n  __pci_enable_msi_range+0x2a8/0x488\\n  pci_alloc_irq_vectors_affinity+0xec/0x14c\\n  pci_alloc_irq_vectors+0x18/0x28\\n\\nDescriptor allocation done in:\\n__pci_enable_msi_range\\n    msi_capability_init\\n        msi_setup_msi_desc\\n            msi_insert_msi_desc\\n                msi_domain_insert_msi_desc\\n                    msi_alloc_desc\\n                        ...\\n\\nFreed in case of failure in __msi_domain_alloc_locked()\\n__pci_enable_msi_range\\n    msi_capability_init\\n        pci_msi_setup_msi_irqs\\n            msi_domain_alloc_irqs_all_locked\\n                msi_domain_alloc_locked\\n                    __msi_domain_alloc_locked =\u003e fails\\n                    msi_domain_free_locked\\n                        ...\\n\\nThat failure propagates back to pci_msi_setup_msi_irqs() in\\nmsi_capability_init() which accesses the descriptor for unmasking in the\\nerror exit path.\\n\\nCure it by copying the descriptor and using the copy for the error exit path\\nunmask operation.\\n\\n[ tglx: Massaged change log ]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI/MSI: corrige UAF en msi_capability_init KFENCE informa el siguiente UAF: ERROR: KFENCE: lectura de uso despu\u00e9s de liberaci\u00f3n en __pci_enable_msi_range+0x2c0/0x488 Lectura de uso despu\u00e9s de liberaci\u00f3n en 0x0000000024629571 (en kfence-#12): __pci_enable_msi_range+0x2c0/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 kfence-#12: 0x0000000008614900-0x00000000e06c22 8d, tama\u00f1o=104, cach\u00e9=kmalloc-128 asignado por la tarea 81 en la CPU 7 en 10.808142 s: __kmem_cache_alloc_node+0x1f0/0x2bc kmalloc_trace+0x44/0x138 msi_alloc_desc+0x3c/0x9c msi_domain_insert_msi_desc+0x30/0x78 msi_setup_msi_desc+0x13c/0x184 __pci_enable_msi_range+0 x258/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 liberado por la tarea 81 en la CPU 7 en 10.811436s: msi_domain_free_descs+0xd4/0x10c msi_domain_free_locked.part.0+0xc0/0x1d8 msi_domain_alloc_irqs_all_locked+0xb4/0xbc pci_msi_setup_msi_irqs+0x30/0x4c __pci_enable_msi_range+ 0x2a8/0x488 pci_alloc_irq_vectors_affinity+0xec/0x14c pci_alloc_irq_vectors+0x18/0x28 Asignaci\u00f3n de descriptores realizada en: __pci_enable_msi_range msi_capability_init msi_setup_msi_desc msi_insert_msi_desc msi_domain_insert_msi_desc msi_alloc_desc ... Liberado en caso de fallo en __msi_domain_alloc_locked() __pci_enable_msi_range msi_capability_init pci_msi_setup_msi_irqs msi_domain_alloc_irqs_all_locked msi_domain_alloc_locked __msi_ domain_alloc_locked =\u0026gt; falla msi_domain_free_locked... Ese error se propaga nuevamente a pci_msi_setup_msi_irqs() en msi_capability_init() que accede al descriptor para desenmascarar en la salida de error camino. Sor\u00e9guelo copiando el descriptor y usando la copia para la operaci\u00f3n de desenmascarar la ruta de salida del error. [tglx: registro de cambios masajeado]\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.6.37\",\"matchCriteriaId\":\"4A068371-F559-419E-A5D4-13A6DB320A21\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.8\",\"matchCriteriaId\":\"E95105F2-32E3-4C5F-9D18-7AEFD0E6275C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0ae40b2d0a5de6b045504098e365d4fdff5bbeba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/45fc8d20e0768ab0a0ad054081d0f68aa3c83976\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ff1121d2214b794dc1772081f27bdd90721a84bc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/45fc8d20e0768ab0a0ad054081d0f68aa3c83976\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ff1121d2214b794dc1772081f27bdd90721a84bc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


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