ghsa-9ffw-88h4-2w7x
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
The nouveau_dmem_copy_one function ensures that the copy push command is
sent to the device firmware but does not track whether it was executed
successfully.
In the case of a copy error (e.g., firmware or hardware failure), the
copy push command will be sent via the firmware channel, and
nouveau_dmem_copy_one will likely report success, leading to the
migrate_to_ram function returning a dirty HIGH_USER page to the user.
This can result in a security vulnerability, as a HIGH_USER page that may contain sensitive or corrupted data could be returned to the user.
To prevent this vulnerability, we allocate a zero page. Thus, in case of an error, a non-dirty (zero) page will be returned to the user.
{
"affected": [],
"aliases": [
"CVE-2024-50096"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-05T17:15:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error\n\nThe `nouveau_dmem_copy_one` function ensures that the copy push command is\nsent to the device firmware but does not track whether it was executed\nsuccessfully.\n\nIn the case of a copy error (e.g., firmware or hardware failure), the\ncopy push command will be sent via the firmware channel, and\n`nouveau_dmem_copy_one` will likely report success, leading to the\n`migrate_to_ram` function returning a dirty HIGH_USER page to the user.\n\nThis can result in a security vulnerability, as a HIGH_USER page that may\ncontain sensitive or corrupted data could be returned to the user.\n\nTo prevent this vulnerability, we allocate a zero page. Thus, in case of\nan error, a non-dirty (zero) page will be returned to the user.",
"id": "GHSA-9ffw-88h4-2w7x",
"modified": "2024-11-12T18:30:51Z",
"published": "2024-11-05T18:32:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50096"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/835745a377a4519decd1a36d6b926e369b3033e2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c3de9282dde21ce3c1bf1bde3166a4510547aa9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab4d113b6718b076046018292f821d5aa4b844f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fd9bb7e996bab9b9049fffe3f3d3b50dee191d27"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- 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.