cve-2022-48872
Vulnerability from cvelistv5
Published
2024-08-21 06:10
Modified
2024-11-04 12:18
Severity ?
Summary
misc: fastrpc: Fix use-after-free race condition for maps
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/556dfdb226ce1e5231d8836159b23f8bb0395bf4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39Patch
Impacted products
Vendor Product Version
Linux Linux Version: 5.1
Show details on NVD website

To clipboard 

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                "id": "CVE-2022-48872",
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                "timestamp": "2024-09-10T16:05:25.671974Z",
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          "product": "Linux",
          "programFiles": [
            "drivers/misc/fastrpc.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix use-after-free race condition for maps\n\nIt is possible that in between calling fastrpc_map_get() until\nmap-\u003efl-\u003elock is taken in fastrpc_free_map(), another thread can call\nfastrpc_map_lookup() and get a reference to a map that is about to be\ndeleted.\n\nRewrite fastrpc_map_get() to only increase the reference count of a map\nif it\u0027s non-zero. Propagate this to callers so they can know if a map is\nabout to be deleted.\n\nFixes this warning:\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate\n...\nCall trace:\n refcount_warn_saturate\n [fastrpc_map_get inlined]\n [fastrpc_map_lookup inlined]\n fastrpc_map_create\n fastrpc_internal_invoke\n fastrpc_device_ioctl\n __arm64_sys_ioctl\n invoke_syscall"
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    "datePublished": "2024-08-21T06:10:02.954Z",
    "dateReserved": "2024-07-16T11:38:08.921Z",
    "dateUpdated": "2024-11-04T12:18:14.434Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48872\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T07:15:04.267\",\"lastModified\":\"2024-09-06T14:30:06.730\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmisc: fastrpc: Fix use-after-free race condition for maps\\n\\nIt is possible that in between calling fastrpc_map_get() until\\nmap-\u003efl-\u003elock is taken in fastrpc_free_map(), another thread can call\\nfastrpc_map_lookup() and get a reference to a map that is about to be\\ndeleted.\\n\\nRewrite fastrpc_map_get() to only increase the reference count of a map\\nif it\u0027s non-zero. Propagate this to callers so they can know if a map is\\nabout to be deleted.\\n\\nFixes this warning:\\nrefcount_t: addition on 0; use-after-free.\\nWARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate\\n...\\nCall trace:\\n refcount_warn_saturate\\n [fastrpc_map_get inlined]\\n [fastrpc_map_lookup inlined]\\n fastrpc_map_create\\n fastrpc_internal_invoke\\n fastrpc_device_ioctl\\n __arm64_sys_ioctl\\n invoke_syscall\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: fastrpc: corrige la condici\u00f3n de ejecuci\u00f3n de use-after-free para mapas. Es posible que entre llamadas a fastrpc_map_get() hasta que se tome map-\u0026gt;fl-\u0026gt;lock en fastrpc_free_map() , otro hilo puede llamar a fastrpc_map_lookup() y obtener una referencia a un mapa que est\u00e1 a punto de ser eliminado. Vuelva a escribir fastrpc_map_get() para aumentar solo el recuento de referencias de un mapa si no es cero. Propague esto a las personas que llaman para que puedan saber si un mapa est\u00e1 a punto de ser eliminado. Corrige esta advertencia: refcount_t: adici\u00f3n en 0; use-after-free. ADVERTENCIA: CPU: 5 PID: 10100 en lib/refcount.c:25 refcount_warn_saturate... Rastreo de llamadas: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __arm64_sys_ioctl invoke_sy llamar\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"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\":\"5.1\",\"versionEndExcluding\":\"5.4.230\",\"matchCriteriaId\":\"D5DAF18C-BC5F-4D9D-A710-21074AD7750B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.165\",\"matchCriteriaId\":\"C6002D5B-9B6A-4788-B943-E3EE01E01303\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.90\",\"matchCriteriaId\":\"E995CDA5-7223-4FDB-BAD3-81B22C763A43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.2\",\"matchCriteriaId\":\"CDB2EE10-7AC0-4F90-BC35-A5139EEE551B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF501633-2F44-4913-A8EE-B021929F49F6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"2BDA597B-CAC1-4DF0-86F0-42E142C654E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"725C78C9-12CE-406F-ABE8-0813A01D66E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A127C155-689C-4F67-B146-44A57F4BFD85\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/556dfdb226ce1e5231d8836159b23f8bb0395bf4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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