CVE-2021-47236
Vulnerability from cvelistv5
Published
2024-05-21 14:19
Modified
2024-11-04 12:02
Severity ?
Summary
net: cdc_eem: fix tx fixup skb leak
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47236",
    "datePublished": "2024-05-21T14:19:37.724Z",
    "dateReserved": "2024-04-10T18:59:19.531Z",
    "dateUpdated": "2024-11-04T12:02:03.125Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47236\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:12.857\",\"lastModified\":\"2024-05-21T16:54:26.047\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: cdc_eem: fix tx fixup skb leak\\n\\nwhen usbnet transmit a skb, eem fixup it in eem_tx_fixup(),\\nif skb_copy_expand() failed, it return NULL,\\nusbnet_start_xmit() will have no chance to free original skb.\\n\\nfix it by free orginal skb in eem_tx_fixup() first,\\nthen check skb clone status, if failed, return NULL to usbnet.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: cdc_eem: corrige la fuga de skb de reparaci\u00f3n de tx cuando usbnet transmite un skb, eem lo repara en eem_tx_fixup(), si skb_copy_expand() falla, devuelve NULL, usbnet_start_xmit() No tendr\u00e1  posibilidad de liberar el skb original. solucionelo primero con skb original gratuito en eem_tx_fixup(), luego verifique el estado del clon de skb, si falla, devuelva NULL a usbnet.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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