Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.17, < 4.19.312 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0bePatch
- https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7Patch
- https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4fPatch
- https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210cPatch
- https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcPatch
- https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81Patch
- https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828Patch
- https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71Patch
- https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7Patch
- https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0bePatch
- https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7Patch
- https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4fPatch
- https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210cPatch
- https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcPatch
- https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81Patch
FAQ
What is CVE-2024-26974?
CVE-2024-26974 is a vulnerability with a CVSS score of 7.0 (HIGH). 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...
How severe is CVE-2024-26974?
CVE-2024-26974 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-26974?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.