ghsa-3f3q-cv7c-w6c7
Vulnerability from github
Published
2024-03-04 18:30
Modified
2024-03-04 18:30
Details
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.
{ "affected": [], "aliases": [ "CVE-2021-47088" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-03-04T18:15:07Z", "severity": null }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/dbgfs: protect targets destructions with kdamond_lock\n\nDAMON debugfs interface iterates current monitoring targets in\n\u0027dbgfs_target_ids_read()\u0027 while holding the corresponding\n\u0027kdamond_lock\u0027. However, it also destructs the monitoring targets in\n\u0027dbgfs_before_terminate()\u0027 without holding the lock. This can result in\na use_after_free bug. This commit avoids the race by protecting the\ndestruction with the corresponding \u0027kdamond_lock\u0027.", "id": "GHSA-3f3q-cv7c-w6c7", "modified": "2024-03-04T18:30:37Z", "published": "2024-03-04T18:30:37Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47088" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/330c6117a82c16a9a365a51cec5c9ab30b13245c" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/34796417964b8d0aef45a99cf6c2d20cebe33733" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.