ghsa-f8jx-pmvg-jgfh
Vulnerability from github
Published
2024-03-03 00:30
Modified
2024-11-06 21:30
Severity ?
Details
In the Linux kernel, the following vulnerability has been resolved:
net: fix possible store tearing in neigh_periodic_work()
While looking at a related syzbot report involving neigh_periodic_work(), I found that I forgot to add an annotation when deleting an RCU protected item from a list.
Readers use rcu_deference(*np), we need to use either rcu_assign_pointer() or WRITE_ONCE() on writer side to prevent store tearing.
I use rcu_assign_pointer() to have lockdep support, this was the choice made in neigh_flush_dev().
{
"affected": [],
"aliases": [
"CVE-2023-52522"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-02T22:15:48Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix possible store tearing in neigh_periodic_work()\n\nWhile looking at a related syzbot report involving neigh_periodic_work(),\nI found that I forgot to add an annotation when deleting an\nRCU protected item from a list.\n\nReaders use rcu_deference(*np), we need to use either\nrcu_assign_pointer() or WRITE_ONCE() on writer side\nto prevent store tearing.\n\nI use rcu_assign_pointer() to have lockdep support,\nthis was the choice made in neigh_flush_dev().",
"id": "GHSA-f8jx-pmvg-jgfh",
"modified": "2024-11-06T21:30:53Z",
"published": "2024-03-03T00:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52522"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/147d89ee41434b97043c2dcb17a97dc151859baa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/25563b581ba3a1f263a00e8c9a97f5e7363be6fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2ea52a2fb8e87067e26bbab4efb8872639240eb0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95eabb075a5902f4c0834ab1fb12dc35730c05af"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a75152d233370362eebedb2643592e7c883cc9fc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f82aac8162871e87027692b36af335a2375d4580"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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