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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < daba62d9eeddcc5b1081be7d348ca836c83c59d7affectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 8e81cd58aee14a470891733181a47d123193ba81affectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < d03092550f526a79cf1ade7f0dfa74906f39eb71affectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 4ae5a97781ce7d6ecc9c7055396535815b64ca4faffectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7affectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcaffectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 0c2cf5142bfb634c0ef0a1a69cdf37950747d0beaffectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < bb279ead42263e9fb09480f02a4247b2c287d828affectedd8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 7d42e097607c4d246d99225bf2b195b6167a210caffected
Linux Linux
Default version status: affected
3.17affected0 to < 3.17unaffected4.19.312 to ≤ 4.19.*unaffected5.4.274 to ≤ 5.4.*unaffected5.10.215 to ≤ 5.10.*unaffected5.15.154 to ≤ 5.15.*unaffected6.1.84 to ≤ 6.1.*unaffected6.6.24 to ≤ 6.6.*unaffected6.7.12 to ≤ 6.7.*unaffected6.8.3 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/daba62d9eeddcc5b1081be7d348ca836c83c59d7 ↗
- https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81 ↗
- https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71 ↗
- https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f ↗
- https://git.kernel.org/stable/c/226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7 ↗
- https://git.kernel.org/stable/c/8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc ↗
- https://git.kernel.org/stable/c/0c2cf5142bfb634c0ef0a1a69cdf37950747d0be ↗
- https://git.kernel.org/stable/c/bb279ead42263e9fb09480f02a4247b2c287d828 ↗
- https://git.kernel.org/stable/c/7d42e097607c4d246d99225bf2b195b6167a210c ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗