ghsa-mxxf-4gg8-94vw
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix overflow in get_free_elt()
"tracing_map->next_elt" in get_free_elt() is at risk of overflowing.
Once it overflows, new elements can still be inserted into the tracing_map
even though the maximum number of elements (max_elts) has been reached.
Continuing to insert elements after the overflow could result in the
tracing_map containing "tracing_map->max_size" elements, leaving no empty
entries.
If any attempt is made to insert an element into a full tracing_map using
__tracing_map_insert(), it will cause an infinite loop with preemption
disabled, leading to a CPU hang problem.
Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".
{
"affected": [],
"aliases": [
"CVE-2024-43890"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-26T11:15:04Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix overflow in get_free_elt()\n\n\"tracing_map-\u003enext_elt\" in get_free_elt() is at risk of overflowing.\n\nOnce it overflows, new elements can still be inserted into the tracing_map\neven though the maximum number of elements (`max_elts`) has been reached.\nContinuing to insert elements after the overflow could result in the\ntracing_map containing \"tracing_map-\u003emax_size\" elements, leaving no empty\nentries.\nIf any attempt is made to insert an element into a full tracing_map using\n`__tracing_map_insert()`, it will cause an infinite loop with preemption\ndisabled, leading to a CPU hang problem.\n\nFix this by preventing any further increments to \"tracing_map-\u003enext_elt\"\nonce it reaches \"tracing_map-\u003emax_elt\".",
"id": "GHSA-mxxf-4gg8-94vw",
"modified": "2024-09-05T21:31:33Z",
"published": "2024-08-26T12:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43890"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a"
}
],
"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"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.