ghsa-xfvp-h462-p6q2
Vulnerability from github
Published
2024-02-23 15:30
Modified
2024-06-25 21:31
Severity ?
Details
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache
There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes.
Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.
{ "affected": [], "aliases": [ "CVE-2024-26598" ], "database_specific": { "cwe_ids": [ "CWE-416" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-02-23T15:15:09Z", "severity": "HIGH" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache\n\nThere is a potential UAF scenario in the case of an LPI translation\ncache hit racing with an operation that invalidates the cache, such\nas a DISCARD ITS command. The root of the problem is that\nvgic_its_check_cache() does not elevate the refcount on the vgic_irq\nbefore dropping the lock that serializes refcount changes.\n\nHave vgic_its_check_cache() raise the refcount on the returned vgic_irq\nand add the corresponding decrement after queueing the interrupt.", "id": "GHSA-xfvp-h462-p6q2", "modified": "2024-06-25T21:31:11Z", "published": "2024-02-23T15:30:38Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26598" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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