Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2024-26974

crypto: qat - resolve race condition during AER recovery

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, and 3 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in daba62d9eeddcc5b1081be7d348ca836c83c59d7; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 8e81cd58aee14a470891733181a47d123193ba81; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in d03092550f526a79cf1ade7f0dfa74906f39eb71; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 4ae5a97781ce7d6ecc9c7055396535815b64ca4f; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 0c2cf5142bfb634c0ef0a1a69cdf37950747d0be; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in bb279ead42263e9fb09480f02a4247b2c287d828; From d8cba25d2c68992a6e7c1d329b690a9ebe01167d · fixed in 7d42e097607c4d246d99225bf2b195b6167a210c

  • Linux Linux

    3.17

  • KernelLinux

    From 3.17.0 · fixed in 4.19.312; From 4.20.0 · fixed in 5.4.274; From 5.5.0 · fixed in 5.10.215; From 5.11.0 · fixed in 5.15.154; From 5.16.0 · fixed in 6.1.84; From 6.2.0 · fixed in 6.6.24; From 6.7.0 · fixed in 6.7.12; From 6.8.0 · fixed in 6.8.3

References 9

git.kernel.org