ghsa-fpr7-5xj6-wq2c
Vulnerability from github
Published
2024-05-21 18:31
Modified
2024-05-21 18:31
Details
In the Linux kernel, the following vulnerability has been resolved:
pwm: Fix double shift bug
These enums are passed to set/test_bit(). The set/test_bit() functions take a bit number instead of a shifted value. Passing a shifted value is a double shift bug like doing BIT(BIT(1)). The double shift bug doesn't cause a problem here because we are only checking 0 and 1 but if the value was 5 or above then it can lead to a buffer overflow.
{ "affected": [], "aliases": [ "CVE-2023-52756" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-05-21T16:15:15Z", "severity": null }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npwm: Fix double shift bug\n\nThese enums are passed to set/test_bit(). The set/test_bit() functions\ntake a bit number instead of a shifted value. Passing a shifted value\nis a double shift bug like doing BIT(BIT(1)). The double shift bug\ndoesn\u0027t cause a problem here because we are only checking 0 and 1 but\nif the value was 5 or above then it can lead to a buffer overflow.", "id": "GHSA-fpr7-5xj6-wq2c", "modified": "2024-05-21T18:31:20Z", "published": "2024-05-21T18:31:20Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52756" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/1fb3a9c59e7f7d2b1d737a0d6e02e31d5b516455" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/45d0a298e05adee521f6fe605d6a88341ba07edd" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/a7ee519e8095d9c834086d0ff40da11415e1e4d7" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/a98ff250b5af87f92f17bb9725cb21de1931ee57" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/bce1f7c7e9812da57de1dda293cba87c693e9958" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/c19a8794bf4fe45cff997f07a75ea84cc9e5d89c" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/d27abbfd4888d79dd24baf50e774631046ac4732" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/e52518b9cb9fc98fc043c8fb2b8cfc619ca8a88b" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/eca19db60f99925461f49c3fd743733881395728" } ], "schema_version": "1.4.0", "severity": [] }
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