cve-2021-47073
Vulnerability from cvelistv5
Published
2024-03-01 21:15
Modified
2024-08-04 05:24
Severity
Summary
platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website


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      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-smbios-wmi.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios\n\ninit_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems\nwhere the Dell WMI interface is supported. While exit_dell_smbios_wmi()\nunregisters it unconditionally, this leads to the following oops:\n\n[  175.722921] ------------[ cut here ]------------\n[  175.722925] Unexpected driver unregister!\n[  175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40\n...\n[  175.723089] Call Trace:\n[  175.723094]  cleanup_module+0x5/0xedd [dell_smbios]\n...\n[  175.723148] ---[ end trace 064c34e1ad49509d ]---\n\nMake the unregister happen on the same condition the register happens\nto fix this."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47073",
    "datePublished": "2024-03-01T21:15:11.466Z",
    "dateReserved": "2024-02-29T22:33:44.297Z",
    "dateUpdated": "2024-08-04T05:24:39.704Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47073\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-01T22:15:47.060\",\"lastModified\":\"2024-03-01T22:22:25.913\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nplatform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios\\n\\ninit_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systems\\nwhere the Dell WMI interface is supported. While exit_dell_smbios_wmi()\\nunregisters it unconditionally, this leads to the following oops:\\n\\n[  175.722921] ------------[ cut here ]------------\\n[  175.722925] Unexpected driver unregister!\\n[  175.722939] WARNING: CPU: 1 PID: 3630 at drivers/base/driver.c:194 driver_unregister+0x38/0x40\\n...\\n[  175.723089] Call Trace:\\n[  175.723094]  cleanup_module+0x5/0xedd [dell_smbios]\\n...\\n[  175.723148] ---[ end trace 064c34e1ad49509d ]---\\n\\nMake the unregister happen on the same condition the register happens\\nto fix this.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: plataforma/x86: dell-smbios-wmi: se corrigi\u00f3 Ups en rmmod dell_smbios init_dell_smbios_wmi() solo registra dell_smbios_wmi_driver en sistemas donde se admite la interfaz Dell WMI. Si bien exit_dell_smbios_wmi() lo cancela del registro incondicionalmente, esto genera lo siguiente: [175.722921] ------------[ cortar aqu\u00ed ]------------ [ 175.722925] Inesperado \u00a1Dar de baja al conductor! [175.722939] ADVERTENCIA: CPU: 1 PID: 3630 en drivers/base/driver.c:194 driver_unregister+0x38/0x40... [175.723089] Seguimiento de llamadas: [175.723094] cleanup_module+0x5/0xedd [dell_smbios]... [ 175.723148] ---[ end trace 064c34e1ad49509d ]--- Haga que la cancelaci\u00f3n del registro se realice en las mismas condiciones que el registro para solucionar este problema.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0cf036a0d325200e6c27b90908e51195bbc557b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3a53587423d25c87af4b4126a806a0575104b45e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6fa78a6b9a3beb676a010dc489c1257f7e432525\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/75cfc833da4a2111106d4c134e93e0c7f41e35e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8d746ea7c687bab060a2c05a35c449302406cd52\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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