GHSA-J53W-25V4-J86P
Vulnerability from github – Published: 2024-07-16 12:30 – Updated: 2024-08-21 18:31In the Linux kernel, the following vulnerability has been resolved:
net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change
The refcount leak issues take place in an error handling path. When the 3rd argument buf doesn't match with "offline", "online" or "remove", the function simply returns -EINVAL and forgets to decrease the reference count of a rpc_xprt object and a rpc_xprt_switch object increased by rpc_sysfs_xprt_kobj_get_xprt() and rpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of both unused objects.
Fix this issue by jumping to the error handling path labelled with out_put when buf matches none of "offline", "online" or "remove".
{
"affected": [],
"aliases": [
"CVE-2021-47624"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-16T12:15:02Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change\n\nThe refcount leak issues take place in an error handling path. When the\n3rd argument buf doesn\u0027t match with \"offline\", \"online\" or \"remove\", the\nfunction simply returns -EINVAL and forgets to decrease the reference\ncount of a rpc_xprt object and a rpc_xprt_switch object increased by\nrpc_sysfs_xprt_kobj_get_xprt() and\nrpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of\nboth unused objects.\n\nFix this issue by jumping to the error handling path labelled with\nout_put when buf matches none of \"offline\", \"online\" or \"remove\".",
"id": "GHSA-j53w-25v4-j86p",
"modified": "2024-08-21T18:31:26Z",
"published": "2024-07-16T12:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47624"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4b22aa42bd4d2d630ef1854c139275c3532937cb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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