CVE-2023-54242

In the Linux kernel, the following vulnerability has been resolved: block, bfq: Fix division by zero error on zero wsum When the weighted sum is zero the calculation of limit causes a division by zero error. Fix this by continuing to the next level. This was discovered by running as root: stress-...

Linux Distros Unpatched Vulnerability : CVE-2022-50488

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - block, bfq: fix possible uaf for 'bfqq-bic' Our test report a uaf for 'bfqq-bic' in 5.10: ================================================================== BUG...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987315)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987315 advisory. In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO schedule...

EUVD-2022-55526

Malicious code in bioql PyPI...

The vulnerability of the bfq_setup_merge() function in the block/bfq-iosched.c module exposes the block-level kernel support of the Linux operating system, allowing attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the bfqsetupmerge function in the block/bfq-iosched.c module related to Linux kernel’s block-level support involves the reutilization of previously freed memory. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibilit...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: block, bfq: Fixed a potential UAF issue for bfqq-bic when using the 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 referenc...

DEBIAN-CVE-2025-21631

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix wakerbfqq UAF after bfqsplitbfqq Our syzkaller report a following UAF for v6.6: BUG: KASAN: slab-use-after-free in bfqinitrq+0x175d/0x17a0 block/bfq-iosched.c:6958 Read of size 8 at addr ffff8881b57147d8 by task...

AZL-56315 CVE-2025-21631 affecting package kernel for versions less than 6.6.76.1-1

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix wakerbfqq UAF after bfqsplitbfqq Our syzkaller report a following UAF for v6.6: BUG: KASAN: slab-use-after-free in bfqinitrq+0x175d/0x17a0 block/bfq-iosched.c:6958 Read of size 8 at addr ffff8881b57147d8 by task...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates in the block, bfq module where the bfqlimitdepth function accesses bfqq unlocked, which could lead to reuse...

An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

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The vulnerability of the `bfq_idle_slice_timer_body` function in the Linux kernel allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the bfqidleslicetimerbody function in the Linux kernel’s block/bfq-iosched.c file relates to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...