ghsa-5293-cf37-fxqw
Vulnerability from github
Published
2024-09-13 06:30
Modified
2024-09-13 18:31
Severity ?
Details
In the Linux kernel, the following vulnerability has been resolved:
firmware: qcom: scm: Mark get_wq_ctx() as atomic call
Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock.
To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.
{ "affected": [], "aliases": [ "CVE-2024-46692" ], "database_specific": { "cwe_ids": [ "CWE-667" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-09-13T06:15:14Z", "severity": "MODERATE" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Mark get_wq_ctx() as atomic call\n\nCurrently get_wq_ctx() is wrongly configured as a standard call. When two\nSMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to\nresume the corresponding sleeping thread. But if get_wq_ctx() is\ninterrupted, goes to sleep and another SMC call is waiting to be allocated\na waitq context, it leads to a deadlock.\n\nTo avoid this get_wq_ctx() must be an atomic call and can\u0027t be a standard\nSMC call. Hence mark get_wq_ctx() as a fast call.", "id": "GHSA-5293-cf37-fxqw", "modified": "2024-09-13T18:31:46Z", "published": "2024-09-13T06:30:43Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46692" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/9960085a3a82c58d3323c1c20b991db6045063b0" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/cdf7efe4b02aa93813db0bf1ca596ad298ab6b06" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/e40115c33c0d79c940545b6b12112aace7acd9f5" } ], "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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