UBUNTU-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...

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...

CVE-2025-21631 block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()

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...

CVE-2025-21631 block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()

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...

CVE-2025-21631

CVE-2025-21631 is a Linux kernel UAF issue in the bfq I/O scheduler. The vulnerability arises from a use-after-free involving waker_bfqq after bfq_split_bfqq, leading to slab-use-after-free in bfq_init_rq as shown by the KASAN report. Affected code paths include bfq-iosched.c: bfq_init_rq/bfq_ins...

CVE-2025-21631 block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()

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...

CVE-2024-53182

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

DEBIAN-CVE-2024-53182

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

AZL-55706 CVE-2024-53166 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix bfqq uaf in bfqlimitdepth Set new allocated bfqq to bic or remove freed bfqq from bic are both protected by bfqd-lock, however bfqlimitdepth is deferencing bfqq from bic without the lock, this can lead to UAF if t...

DEBIAN-CVE-2024-53166

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix bfqq uaf in bfqlimitdepth Set new allocated bfqq to bic or remove freed bfqq from bic are both protected by bfqd-lock, however bfqlimitdepth is deferencing bfqq from bic without the lock, this can lead to UAF if t...

UBUNTU-CVE-2024-53182

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

CVE-2024-53182

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

CVE-2024-53182 Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

CVE-2024-53182

The CVE-2024-53182 issue affects the Linux kernel BFQ Scheduler. A revert of the patch that merged bfq_release_process_ref() into bfq_put_cooperator() caused bic_set_bfqq to operate on a freed bic data structure, yielding a slab-use-after-free detected by KASAN in bic_set_bfqq+0x200/0x230. Impact...

CVE-2024-53182 Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"

In the Linux kernel, the following vulnerability has been resolved: Revert "block, bfq: merge bfqreleaseprocessref into bfqputcooperator" This reverts commit bc3b1e9e7c50e1de0f573eea3871db61dd4787de. The bic is associated with syncbfqq, and bfqreleaseprocessref cannot be put into bfqputcooperator...

CVE-2024-53166

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix bfqq uaf in bfqlimitdepth Set new allocated bfqq to bic or remove freed bfqq from bic are both protected by bfqd-lock, however bfqlimitdepth is deferencing bfqq from bic without the lock, this can lead to UAF if t...

CVE-2024-53166 block, bfq: fix bfqq uaf in bfq_limit_depth()

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix bfqq uaf in bfqlimitdepth Set new allocated bfqq to bic or remove freed bfqq from bic are both protected by bfqd-lock, however bfqlimitdepth is deferencing bfqq from bic without the lock, this can lead to UAF if t...

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 stems from an issue with the merging of bfqreleaseprocessref and bfqputcooperator in the block, bfq subsystem...

CBL Mariner 2.0 Security Update: kernel (CVE-2024-49854)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-49854 advisory. - In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for accessing...

SUSE-SU-2024:4103-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP2 LTSS kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2021-47589: igbvf: fix double free in igbvfprobe bsc1226557. - CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1231893. - CVE-2022-48960: net:...