ghsa-6w2x-xmw9-v3hc
Vulnerability from github
Published
2025-03-12 00:31
Modified
2025-03-12 00:31
Severity ?
VLAI Severity ?
Details
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec_minmax().
A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing.
This patch changes proc_douintvec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
{ "affected": [], "aliases": [ "CVE-2022-49640" ], "database_specific": { "cwe_ids": [ "CWE-362" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2025-02-26T07:01:39Z", "severity": "MODERATE" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysctl: Fix data races in proc_douintvec_minmax().\n\nA sysctl variable is accessed concurrently, and there is always a chance\nof data-race. So, all readers and writers need some basic protection to\navoid load/store-tearing.\n\nThis patch changes proc_douintvec_minmax() to use READ_ONCE() and\nWRITE_ONCE() internally to fix data-races on the sysctl side. For now,\nproc_douintvec_minmax() itself is tolerant to a data-race, but we still\nneed to add annotations on the other subsystem\u0027s side.", "id": "GHSA-6w2x-xmw9-v3hc", "modified": "2025-03-12T00:31:48Z", "published": "2025-03-12T00:31:48Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49640" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/2d3b559df3ed39258737789aae2ae7973d205bc1" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/40e0477a7371d101c55b69d9c32a7a1ed82ab5ea" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/b60eddf98b9716651069dfda296c91311a7a6293" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/e3a2144b3b6bf9ecafd91087c8b8b48171ec19df" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "type": "CVSS_V3" } ] }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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