Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989256)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989256 advisory. In the Linux kernel, the following vulnerability has been resolved: bfq: Avoid merging queues with different parents It can happen that the parent of a bfqq changes...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987375)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987375 advisory. In the Linux kernel, the following vulnerability has been resolved: bfq: Avoid merging queues with different parents It can happen that the parent of a bfqq changes...

DEBIAN-CVE-2022-49412

In the Linux kernel, the following vulnerability has been resolved: bfq: Avoid merging queues with different parents It can happen that the parent of a bfqq changes between the moment we decide two queues are worth to merge and set bic-stablemergebfqq and the moment bfqsetupmerge is called. This...

UBUNTU-CVE-2024-47706

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible UAF for bfqq-bic with merge chain 1 initial state, three tasks: Process 1 Process 2 Process 3 BIC1 BIC2 BIC3 | Λ | Λ | Λ | | | | | | V | V | V | bfqq1 bfqq2 bfqq3 process ref: 1 1 1 2 bfqq1 merged to bfqq...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ubi: Fix race condition between ctrlcdevioctl and ubicdevioctl CVE-2021-47634 In the Linux kernel, the following vulnerability has been resolved: Revert "Revert "block, bfq: honor already-setup queue merges""...

kernel: block, bfq: fix possible uaf for 'bfqq->bic'

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible uaf for 'bfqq-bic' Our test report a uaf for 'bfqq-bic' in 5.10: ================================================================== BUG: KASAN: use-after-free in bfqselectqueue+0x378/0xa30 CPU: 6 PID:...