cve-2021-47456
Vulnerability from cvelistv5
Published
2024-05-22 06:19
Modified
2024-12-19 07:42
Severity ?
8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: can: peak_pci: peak_pci_remove(): fix UAF When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF. Fix this by releasing 'dev' later. The following log reveals it: [ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537 [ 35.965513 ] Call Trace: [ 35.965718 ] dump_stack_lvl+0xa8/0xd1 [ 35.966028 ] print_address_description+0x87/0x3b0 [ 35.966420 ] kasan_report+0x172/0x1c0 [ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170 [ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967945 ] __asan_report_load8_noabort+0x14/0x20 [ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.968752 ] pci_device_remove+0xa9/0x250
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9
Impacted products
Vendor Product Version
Linux Linux Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
Version: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd
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   Linux Linux Version: 3.4
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{
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\nreleasing \u0027dev\u0027 will cause UAF.\n\nFix this by releasing \u0027dev\u0027 later.\n\nThe following log reveals it:\n\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[   35.965513 ] Call Trace:\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\n[   35.966028 ]  print_address_description+0x87/0x3b0\n[   35.966420 ]  kasan_report+0x172/0x1c0\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.968752 ]  pci_device_remove+0xa9/0x250"
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "can: peak_pci: peak_pci_remove(): fix UAF",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47456",
    "datePublished": "2024-05-22T06:19:45.363Z",
    "dateReserved": "2024-05-21T14:58:30.833Z",
    "dateUpdated": "2024-12-19T07:42:44.887Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47456\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-22T07:15:10.627\",\"lastModified\":\"2024-11-21T06:36:10.987\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: peak_pci: peak_pci_remove(): fix UAF\\n\\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\\nreleasing \u0027dev\u0027 will cause UAF.\\n\\nFix this by releasing \u0027dev\u0027 later.\\n\\nThe following log reveals it:\\n\\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\\n[   35.965513 ] Call Trace:\\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\\n[   35.966028 ]  print_address_description+0x87/0x3b0\\n[   35.966420 ]  kasan_report+0x172/0x1c0\\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.968752 ]  pci_device_remove+0xa9/0x250\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: pico_pci: pico_pci_remove(): arreglar UAF Cuando se elimina el m\u00f3dulo peek_pci, hacer referencia a \u0027chan\u0027 nuevamente despu\u00e9s de liberar \u0027dev\u0027 causar\u00e1 UAF. Solucione este problema lanzando \u0027dev\u0027 m\u00e1s tarde. El siguiente registro lo revela: [35.961814] ERROR: KASAN: uso despu\u00e9s de liberar en pico_pci_remove+0x16f/0x270 [peak_pci] [35.963414] Lectura de tama\u00f1o 8 en addr ffff888136998ee8 por tarea modprobe/5537 [35.965513] Seguimiento de llamadas: [3 5.965718 ] dump_stack_lvl+0xa8/0xd1 [35.966028] print_address_description+0x87/0x3b0 [35.966420] kasan_report+0x172/0x1c0 [35.966725]? pico_pci_remove+0x16f/0x270 [pico_pci] [35.967137]? trace_irq_enable_rcuidle+0x10/0x170 [35.967529]? pico_pci_remove+0x16f/0x270 [pico_pci] [ 35.967945 ] __asan_report_load8_noabort+0x14/0x20 [ 35.968346 ] pico_pci_remove+0x16f/0x270 [pico_pci] [ 35.968752 ] ve+0xa9/0x250\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"},{\"lang\":\"en\",\"value\":\"CWE-467\"}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d\", \"tags\": [\"x_transferred\"]}, {\"url\": 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[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"e6d9c80b7ca1\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.4\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.4.290\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.9.288\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.14.253\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.19.214\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.4.156\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.10.76\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.14.15\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.15\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-467\", \"description\": \"CWE-467 Use of sizeof() on a Pointer Type\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-22T14:56:11.841Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"can: peak_pci: peak_pci_remove(): fix UAF\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"1c616528ba4aeb1125a06b407572ab7b56acae38\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"447d44cd2f67a20b596ede3ca3cd67086dfd9ca9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"34914971bb3244db4ce2be44e9438a9b30c56250\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"adbda14730aacce41c0d3596415aa39ad63eafd9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"1248582e47a9f7ce0ecd156c39fc61f8b6aa3699\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"28f28e4bc3a5e0051faa963f10b778ab38c1db69\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"0e5afdc2315b0737edcf55bede4ee1640d2d464d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd\", \"lessThan\": \"949fe9b35570361bc6ee2652f89a0561b26eec98\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/can/sja1000/peak_pci.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.290\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.288\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.253\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.214\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.156\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.76\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.14.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/can/sja1000/peak_pci.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38\"}, {\"url\": \"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9\"}, {\"url\": \"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250\"}, {\"url\": \"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9\"}, {\"url\": \"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699\"}, {\"url\": \"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69\"}, {\"url\": \"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d\"}, {\"url\": \"https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: peak_pci: peak_pci_remove(): fix UAF\\n\\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\\nreleasing \u0027dev\u0027 will cause UAF.\\n\\nFix this by releasing \u0027dev\u0027 later.\\n\\nThe following log reveals it:\\n\\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\\n[   35.965513 ] Call Trace:\\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\\n[   35.966028 ]  print_address_description+0x87/0x3b0\\n[   35.966420 ]  kasan_report+0x172/0x1c0\\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\\n[   35.968752 ]  pci_device_remove+0xa9/0x250\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T07:42:44.887Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47456\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T07:42:44.887Z\", \"dateReserved\": \"2024-05-21T14:58:30.833Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-22T06:19:45.363Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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