CVE-2026-53062

A flaw was found in the Linux kernel's device-mapper dm cache policy, specifically within the smq module. In passthrough mode, the invalidatemapping operation lacks proper locking, allowing for concurrent access. This can lead to data races, resulting in data corruption or use-after-free issues,...

Linux Distros Unpatched Vulnerability : CVE-2026-53062

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - dm cache policy smq: fix missing locks in invalidating cache blocks In passthrough mode, the policy invalidatemapping operation is called simultaneously from...

CVE-2026-53062

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: fix missing locks in invalidating cache blocks In passthrough mode, the policy invalidatemapping operation is called simultaneously from multiple workers, thus it should be protected by a lock. Otherwise, we...

CVE-2026-53062 dm cache policy smq: fix missing locks in invalidating cache blocks

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: fix missing locks in invalidating cache blocks In passthrough mode, the policy invalidatemapping operation is called simultaneously from multiple workers, thus it should be protected by a lock. Otherwise, we...

CVE-2026-53062

The CVE-2026-53062 entry describes a Linux kernel flaw in the dm-cache policy smq in passthrough mode where invalidate_mapping is invoked concurrently by multiple workers without proper locking. This race can cause data races on the allocated blocks counter and potential use-after-free issues in ...

PT-2026-51956

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In passthrough mode, the invalidate mapping operation within the dm cache policy smq is called simultaneously by multiple workers without proper lock protection. This lack of...

Improper Locking

Overview Affected versions of this package are vulnerable to Improper Locking in the releasewritelock and releasereadlock functions. An attacker can disrupt synchronization guarantees and exploit data races or cause denial of service by invoking these functions from unauthorized threads or withou...

Wrap-around Error

Overview Affected versions of this package are vulnerable to Wrap-around Error in ReentrantReadWriteLock that causes incorrect write locks. An attacker can cause a thread to incorrectly obtain a write lock without exclusivity by repeatedly acquiring the read lock 32,768 times, which overflows the...

Astra Linux – Vulnerability in RustC

crossbeam-utils provides atomic operations, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. Prior to version 0.8.7, crossbeam-utils incorrectly assumed that the alignment of i,u64 was always the same as AtomicI,U64. However, the alignment of i,u...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sysctl: Data race issues in procdouintvecminmax have been fixed. A sysctl variable is accessed concurrently, and there is always a risk of data races. Therefore, both readers and writers require some basic protection to avoid dat...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fixed data races related to sysctlfibmultipathhashpolicy. When reading sysctlfibmultipathhashpolicy, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv6/sit: Use DEVSTATSINC to avoid data races. syzbot/KCSAN reported that multiple CPUs are updating dev-stats.txerror concurrently. This occurs because sit tunnels use NETIFFLLTX, which means their ndostartxmit function is not...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcpmtuprobing. When reading sysctltcpmtuprobing, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcpminsndmss. When reading sysctltcpminsndmss, it can be changed concurrently. Therefore, we need to add READONCE to its readers...

Concurrent Ruby - ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Summary Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from accessing the devicefolio after calling the foliofree function, potentially leading to data races...

pam_usb 代码问题漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.9.1 contained code vulnerabilities. This vulnerability stemmed from the fact that the src/log.c file contained a process-level static pointer; each PAM ca...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ip: Fixed data races related to sysctlipfwdusepmtu. When reading from sysctlipfwdusepmtu, it can be changed concurrently. Therefore, we need to add a READONCE call to its readers...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Fixed issues related to data races around sk-skforwardalloc. Syzkaller reported this warning: ------------------ WARNING: CPU: 0 PID: 16 at net/ipv4/afinet.c:156 inetsockdestruct+0x1c5/0x1e0 Modules linked in: CPU: 0 UID:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed issues related to data races around sysctltcpfastopenblackholetimeout. When reading sysctltcpfastopenblackholetimeout, it can be changed concurrently. Therefore, we need to add READONCE to its readers...