GHSA-WV5G-RV8W-9X7P
Vulnerability from github – Published: 2024-03-11 18:31 – Updated: 2024-12-12 18:30In the Linux kernel, the following vulnerability has been resolved:
PM: sleep: Fix possible deadlocks in core system-wide PM code
It is reported that in low-memory situations the system-wide resume core code deadlocks, because async_schedule_dev() executes its argument function synchronously if it cannot allocate memory (and not only in that case) and that function attempts to acquire a mutex that is already held. Executing the argument function synchronously from within dpm_async_fn() may also be problematic for ordering reasons (it may cause a consumer device's resume callback to be invoked before a requisite supplier device's one, for example).
Address this by changing the code in question to use async_schedule_dev_nocall() for scheduling the asynchronous execution of device suspend and resume functions and to directly run them synchronously if async_schedule_dev_nocall() returns false.
{
"affected": [],
"aliases": [
"CVE-2023-52498"
],
"database_specific": {
"cwe_ids": [
"CWE-667"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-11T18:15:17Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: sleep: Fix possible deadlocks in core system-wide PM code\n\nIt is reported that in low-memory situations the system-wide resume core\ncode deadlocks, because async_schedule_dev() executes its argument\nfunction synchronously if it cannot allocate memory (and not only in\nthat case) and that function attempts to acquire a mutex that is already\nheld. Executing the argument function synchronously from within\ndpm_async_fn() may also be problematic for ordering reasons (it may\ncause a consumer device\u0027s resume callback to be invoked before a\nrequisite supplier device\u0027s one, for example).\n\nAddress this by changing the code in question to use\nasync_schedule_dev_nocall() for scheduling the asynchronous\nexecution of device suspend and resume functions and to directly\nrun them synchronously if async_schedule_dev_nocall() returns false.",
"id": "GHSA-wv5g-rv8w-9x7p",
"modified": "2024-12-12T18:30:50Z",
"published": "2024-03-11T18:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52498"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7839d0078e0d5e6cc2fa0b0dfbee71de74f1e557"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9bd3dce27b01c51295b60e1433e1dadfb16649f7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a1d62c775b07213c73f81ae842424c74dd14b5f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e1c9d32c98309ae764893a481552d3f99d46cb34"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e681e29d1f59a04ef773296e4bebb17b1b79f8fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f46eb832389f162ad13cb780d0b8cde93641990d"
},
{
"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:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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|---|
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