CVE-2024-26974

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < daba62d9eeddcc5b1081be7d348ca836c83c59d7affected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 8e81cd58aee14a470891733181a47d123193ba81affected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < d03092550f526a79cf1ade7f0dfa74906f39eb71affected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 4ae5a97781ce7d6ecc9c7055396535815b64ca4faffected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7affected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcaffected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 0c2cf5142bfb634c0ef0a1a69cdf37950747d0beaffected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < bb279ead42263e9fb09480f02a4247b2c287d828affected
LinuxLinuxd8cba25d2c68992a6e7c1d329b690a9ebe01167d < 7d42e097607c4d246d99225bf2b195b6167a210caffected
LinuxLinux3.17affected
LinuxLinux0 < 3.17unaffected
LinuxLinux4.19.312 <= 4.19.*unaffected
LinuxLinux5.4.274 <= 5.4.*unaffected
LinuxLinux5.10.215 <= 5.10.*unaffected
LinuxLinux5.15.154 <= 5.15.*unaffected
LinuxLinux6.1.84 <= 6.1.*unaffected
LinuxLinux6.6.24 <= 6.6.*unaffected
LinuxLinux6.7.12 <= 6.7.*unaffected
LinuxLinux6.8.3 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

Additional References

References