GHSA-2J3V-48PV-MVCJ
Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2025-09-23 21:30In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: protect device queue against concurrent access
In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses.
Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path.
{
"affected": [],
"aliases": [
"CVE-2023-52774"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:16Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: protect device queue against concurrent access\n\nIn dasd_profile_start() the amount of requests on the device queue are\ncounted. The access to the device queue is unprotected against\nconcurrent access. With a lot of parallel I/O, especially with alias\ndevices enabled, the device queue can change while dasd_profile_start()\nis accessing the queue. In the worst case this leads to a kernel panic\ndue to incorrect pointer accesses.\n\nFix this by taking the device lock before accessing the queue and\ncounting the requests. Additionally the check for a valid profile data\npointer can be done earlier to avoid unnecessary locking in a hot path.",
"id": "GHSA-2j3v-48pv-mvcj",
"modified": "2025-09-23T21:30:53Z",
"published": "2024-05-21T18:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52774"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458"
}
],
"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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