GHSA-7GXW-6Q7R-Q63R
Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2024-07-03 18:42In the Linux kernel, the following vulnerability has been resolved:
pipe: wakeup wr_wait after setting max_usage
Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1].
The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write.
Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue.
[Christian Brauner brauner@kernel.org: rewrite to account for watch queues]
{
"affected": [],
"aliases": [
"CVE-2023-52672"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T14:15:10Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npipe: wakeup wr_wait after setting max_usage\n\nCommit c73be61cede5 (\"pipe: Add general notification queue support\") a\nregression was introduced that would lock up resized pipes under certain\nconditions. See the reproducer in [1].\n\nThe commit resizing the pipe ring size was moved to a different\nfunction, doing that moved the wakeup for pipe-\u003ewr_wait before actually\nraising pipe-\u003emax_usage. If a pipe was full before the resize occured it\nwould result in the wakeup never actually triggering pipe_write.\n\nSet @max_usage and @nr_accounted before waking writers if this isn\u0027t a\nwatch queue.\n\n[Christian Brauner \u003cbrauner@kernel.org\u003e: rewrite to account for watch queues]",
"id": "GHSA-7gxw-6q7r-q63r",
"modified": "2024-07-03T18:42:22Z",
"published": "2024-05-17T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52672"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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