ghsa-3w59-vx6f-4274
Vulnerability from github
Published
2024-05-21 15:31
Modified
2024-05-21 15:31
Details
In the Linux kernel, the following vulnerability has been resolved:
net: cdc_eem: fix tx fixup skb leak
when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb.
fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet.
{
"affected": [],
"aliases": [
"CVE-2021-47236"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:12Z",
"severity": null
},
"details": "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.",
"id": "GHSA-3w59-vx6f-4274",
"modified": "2024-05-21T15:31:40Z",
"published": "2024-05-21T15:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47236"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d"
}
],
"schema_version": "1.4.0",
"severity": []
}
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