ghsa-767c-45p6-hv5q
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - resolve race condition during AER recovery
During the PCI AER system's error recovery process, the kernel driver may encounter a race condition with freeing the reset_data structure's memory. If the device restart will take more than 10 seconds the function scheduling that restart will exit due to a timeout, and the reset_data structure will be freed. However, this data structure is used for completion notification after the restart is completed, which leads to a UAF bug.
This results in a KFENCE bug notice.
BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat] Use-after-free read at 0x00000000bc56fddf (in kfence-#142): adf_device_reset_worker+0x38/0xa0 [intel_qat] process_one_work+0x173/0x340
To resolve this race condition, the memory associated to the container of the work_struct is freed on the worker if the timeout expired, otherwise on the function that schedules the worker. The timeout detection can be done by checking if the caller is still waiting for completion or not by using completion_done() function.
{
"affected": [],
"aliases": [
"CVE-2024-26974"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-01T06:15:14Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - resolve race condition during AER recovery\n\nDuring the PCI AER system\u0027s error recovery process, the kernel driver\nmay encounter a race condition with freeing the reset_data structure\u0027s\nmemory. If the device restart will take more than 10 seconds the function\nscheduling that restart will exit due to a timeout, and the reset_data\nstructure will be freed. However, this data structure is used for\ncompletion notification after the restart is completed, which leads\nto a UAF bug.\n\nThis results in a KFENCE bug notice.\n\n BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat]\n Use-after-free read at 0x00000000bc56fddf (in kfence-#142):\n adf_device_reset_worker+0x38/0xa0 [intel_qat]\n process_one_work+0x173/0x340\n\nTo resolve this race condition, the memory associated to the container\nof the work_struct is freed on the worker if the timeout expired,\notherwise on the function that schedules the worker.\nThe timeout detection can be done by checking if the caller is\nstill waiting for completion or not by using completion_done() function.",
"id": "GHSA-767c-45p6-hv5q",
"modified": "2024-06-27T12:30:45Z",
"published": "2024-05-01T06:31:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26974"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
- 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.