CVE-2023-54242 block, bfq: Fix division by zero error on zero wsum

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-...

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-...

CVE-2023-54242

CVE-2023-54242 affects the Linux kernel in the block bfq I/O elevator. The issue is a division by zero when the weighted sum (wsum) equals zero, causing an invalid calculation of the limit during bfq_limit_depth. The vulnerability could trigger a divide error as observed in a stress-ng stress tes...

CVE-2023-54227 blk-mq: fix tags leak when shrink nr_hw_queues

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

CVE-2023-54227

CVE-2023-54227 affects the Linux kernel blk-mq by leaking tags during shrink_nr_hw_queues. Reproduction shows 9 tags allocated for 8 submit queues + 1 poll queue, but when nr_hw_queues shrinks to 5, only 5 tags are freed, leaking the other 4. The issue is addressed in kernel patches; multiple OS ...

CVE-2023-54227

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

CVE-2023-54227 blk-mq: fix tags leak when shrink nr_hw_queues

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

CVE-2023-54209

In the Linux kernel, the following vulnerability has been resolved: block: fix blktrace debugfs entries leakage Commit 99d055b4fd4b "block: remove per-disk debugfs files in blkunregisterqueue" moves blktraceshutdown from blkreleasequeue to blkunregisterqueue, this is safe if blktrace is created...

CVE-2023-54209

CVE-2023-54209 — In the Linux kernel, a leak of debugfs entries for blktrace could occur when a disk is closed after del_gendisk() if blktrace remained enabled via an ioctl opened before del_gendisk. The fix moves blktrace shutdown to disk_release() and relies on the reentrancy of blk_trace_remov...

CVE-2023-54203

Summary: CVE-2023-54203 affects the Linux kernel ksmbd path in SMB2/SMB1 negotiation handling. When an SMB1 mount negotiation is processed as SMB2, KASAN detects a slab-out-of-bounds in init_smb2_rsp_hdr, leading to a potential crash or memory access issue. The fix adds explicit SMB1 server opera...

CVE-2023-54193 net/sched: cls_api: remove block_cb from driver_list before freeing

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: remove blockcb from driverlist before freeing Error handler of tcfblockbind frees the whole bo-cblist on error. However, by that time the flowblockcb instances are already in the driver list because driver...

CVE-2023-54193

CVE-2023-54193 affects the Linux kernel net/sched cls_api flow: when tcf_block_bind() errors, flow_block_cb objects were still in the driver_list, causing use-after-free. The fix removes flow_block_cb entries from driver_list before deallocation (the patch references show the changes). Affected: ...

CVE-2023-54193 net/sched: cls_api: remove block_cb from driver_list before freeing

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: remove blockcb from driverlist before freeing Error handler of tcfblockbind frees the whole bo-cblist on error. However, by that time the flowblockcb instances are already in the driver list because driver...

CVE-2023-54192

CVE-2023-54192 affects the Linux kernel (f2fs). The vulnerability is a null pointer dereference panic in the tracepoint path for __replace_atomic_write_block, leading to kernel panic during f2fs_commit_atomic_write and ioctl handling when old_addr is NULL. A fix was released to address this null ...

CVE-2023-54192 f2fs: fix null pointer panic in tracepoint in __replace_atomic_write_block

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null pointer panic in tracepoint in replaceatomicwriteblock We got a kernel panic if oldaddr is NULL. https://bugzilla.kernel.org/showbug.cgi?id=217266 BUG: kernel NULL pointer dereference, address: 0000000000000000 Cal...

CVE-2025-69026

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Roxnor PopupKit popup-builder-block allows Retrieve Embedded Sensitive Data.This issue affects PopupKit: from n/a through = 2.1.5...

CVE-2025-69026 WordPress PopupKit plugin <= 2.1.5 - Sensitive Data Exposure vulnerability

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Roxnor PopupKit popup-builder-block allows Retrieve Embedded Sensitive Data.This issue affects PopupKit: from n/a through = 2.1.5...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

Microsoft Windows SMBGhost Vulnerability Checker - CVE-2020-07...

PT-2025-54022

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the net/sched subsystem related to the handling of traffic control blocks. Specifically, the error handler in tcf block bind frees the cb list without...

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 Linux kernel, which stems from the installation of blkgpolicydata in blk-cgroup before initialization, which could lead to a null pointer...