kernel: Linux kernel: Denial of Service in erofs due to memory leak

A flaw was found in the Linux kernel's erofs filesystem. A local user can trigger a memory leak by exploiting a condition in the zerofsregisterpcluster function where a pcluster's block address is zero, leading to an unreleased reference count. This vulnerability can result in resource exhaustion...

kernel: smb: client: fix possible double free in smb2_set_ea()

A doubly freeing memory vulnerability exists in the Linux kernel smb client. After the first successful memory allocation for 'ea', the second memory release for 'ea' will result in double free, leading to loss of availability of the system...

kernel: block: fix potential invalid pointer dereference in blk_add_partition

In the Linux kernel, the following vulnerability has been resolved: block: fix potential invalid pointer dereference in blkaddpartition The blkaddpartition function initially used a single if-condition ISERRpart to check for errors when adding a partition. This was modified to handle the specific...

kernel: brd: defer automatic disk creation until module initialization succeeds

In the Linux kernel, the following vulnerability has been resolved: brd: defer automatic disk creation until module initialization succeeds My colleague Wupeng found the following problems during fault injection: BUG: unable to handle page fault for address: fffffbfff809d073 PGD 6e648067 P4D...

kernel: s390/dcssblk: fix kernel crash with list_add corruption

A kernel crash vulnerability was found in the Linux kernel's s390 dcssblk driver. Missing daxremovehost calls in the device removal path, combined with broken error handling in the device add path, cause stale xarray entries and listadd corruption. When a previously used gendisk pointer is reused...

kernel: 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...

kernel: pmdomain: imx8mp-blk-ctrl: add missing loop break condition

In the Linux kernel, the following vulnerability has been resolved: pmdomain: imx8mp-blk-ctrl: add missing loop break condition Currently imx8mpblkctrlremove will continue the for loop until an out-of-bounds exception occurs. pstate: 60000005 nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=-- pc :...

kernel: block: fix deadlock between sd_remove & sd_release

In the Linux kernel, the following vulnerability has been resolved: block: fix deadlock between sdremove & sdrelease Our test report the following hung task: 2538.459400 INFO: task "kworker/0:0":7 blocked for more than 188 seconds. 2538.459427 Call trace: 2538.459430 switchto+0x174/0x338...

kernel: blk-mq: setup queue ->tag_set before initializing hctx

In the Linux kernel, the following vulnerability has been resolved: blk-mq: setup queue -tagset before initializing hctx Commit 7b815817aa58 "blk-mq: add helper for checking if one CPU is mapped to specified hctx" needs to check queue mapping via tag set in hctx's cpuhp handler. However, q-tagset...

kernel: net/sched: sch_api: fix xa_insert() error path in tcf_block_get_ext()

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

Microsoft Windows SMB Client 安全漏洞

Microsoft Windows SMB Client is an application from Microsoft Corporation USA. An SMB client. A security vulnerability exists in Microsoft Windows SMB Client. An attacker exploiting this vulnerability could gain access to sensitive information. The following products and editions are...

Lightweight Hybrid Block-Stream Cryptographic Algorithm for the Internet of Things

In this thesis, a novel lightweight hybrid encryption algorithm named SEPAR is proposed, featuring a 16-bit block length and a 128-bit initialization vector. The algorithm is designed specifically for application in Internet of Things IoT technology devices. The design concept of this algorithm i...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifsdumpfullkey CVE-2024-35866 In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: Fully initialize struct nfconncounttuple in inserttree...

A week in security (May 4 – May 10)

Last week on Malwarebytes Labs: The AI chatbot cop squad is here Lock and Code S06E09 Android fixes 47 vulnerabilities, including one zero-day. Update as soon as you can! "Your privacy is a promise we don’t break": Dating app Raw exposes sensitive user data FBI issues warning as scammers target...

PT-2025-33: Security restriction bypass in macOS Shortcuts

The vulnerability was identified in macOS Shortcuts, versions to macOS Sequoia 15.5. The discovered vulnerability allows an attacker to bypass security restrictions and execute arbitrary code delivered via an FTP or SMB server. Vulnerability status: Confirmed by vendor Date of vulnerability...

CVE-2025-47484

Server-Side Request Forgery SSRF vulnerability in Oliver Campion Display Remote Posts Block display-remote-posts-block allows Server Side Request Forgery.This issue affects Display Remote Posts Block: from n/a through = 1.1.0...

AZL-70141 CVE-2025-37856 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: harden blockgroup::bglist against listdel races As far as I can tell, these calls of listdelinit on bglist cannot run concurrently with btrfsmarkbgunused or btrfsmarkbgtoreclaim, as they are in transaction error paths and...

AZL-62738 CVE-2025-37856 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: btrfs: harden blockgroup::bglist against listdel races As far as I can tell, these calls of listdelinit on bglist cannot run concurrently with btrfsmarkbgunused or btrfsmarkbgtoreclaim, as they are in transaction error paths and...

DEBIAN-CVE-2025-37856

In the Linux kernel, the following vulnerability has been resolved: btrfs: harden blockgroup::bglist against listdel races As far as I can tell, these calls of listdelinit on bglist cannot run concurrently with btrfsmarkbgunused or btrfsmarkbgtoreclaim, as they are in transaction error paths and...

CVE-2025-37856

In the Linux kernel, the following vulnerability has been resolved: btrfs: harden blockgroup::bglist against listdel races As far as I can tell, these calls of listdelinit on bglist cannot run concurrently with btrfsmarkbgunused or btrfsmarkbgtoreclaim, as they are in transaction error paths and...