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.
Metrics
Affected Vendors & Products
References
History
Fri, 22 Nov 2024 12:00:00 +0000
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Tue, 05 Nov 2024 10:45:00 +0000
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Wed, 18 Sep 2024 06:45:00 +0000
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CPEs | cpe:/a:redhat:rhel_eus:9.2 cpe:/a:redhat:rhel_eus:9.2::nfv |
Fri, 06 Sep 2024 14:00:00 +0000
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First Time appeared |
Redhat rhel Eus
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CPEs | cpe:/o:redhat:rhel_eus:8.8 | |
Vendors & Products |
Redhat rhel Eus
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-05-01T05:20:14.163Z
Updated: 2024-11-05T09:19:13.670Z
Reserved: 2024-02-19T14:20:24.203Z
Link: CVE-2024-26974
Vulnrichment
Updated: 2024-08-02T00:21:05.752Z
NVD
Status : Awaiting Analysis
Published: 2024-05-01T06:15:14.313
Modified: 2024-11-21T09:03:31.677
Link: CVE-2024-26974
Redhat