cve-2021-47101
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-08-04 05:24
Severity
Summary
asix: fix uninit-value in asix_mdio_read()
References
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497"
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"title": "asix: fix uninit-value in asix_mdio_read()",
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"nvd": "{\"cve\":{\"id\":\"CVE-2021-47101\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-04T18:15:08.450\",\"lastModified\":\"2024-03-05T13:41:01.900\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nasix: fix uninit-value in asix_mdio_read()\\n\\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\\nsmsr will be uninitialized.\\n\\nFail log:\\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: asix: corrige el valor uninit en asix_mdio_read() asix_read_cmd() puede leer menos que sizeof(smsr) bytes y en este caso smsr no estar\u00e1 inicializado. Registro de errores: ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 [en l\u00ednea] ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 controladores [en l\u00ednea] /net/usb/asix_common.c:497 ERROR: KMSAN: valor uninit en asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/ usb/asix_common.c:82 [en l\u00ednea] controladores asix_check_host_enable/net/usb/asix_common.c:82 [en l\u00ednea] controladores/net/usb/asix_common.c:497 controladores asix_mdio_read+0x3c1/0xb00/net/usb/asix_common.c :497 controladores/net/usb/asix_common.c:497\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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