Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: perf/core: Fixed the refcount bug and potential UAF in perfmmap. Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf/core: The handling of buffer mapping failures in perfmmap is incorrect. After a buffer is successfully allocated or attached to an existing buffer, perfmmap attempts to map the buffer into the page table in read-only mode. I...

CLSA-2026-1777614769 kernel: Fix of 13 CVEs

crypto: algifaead - Fix minimum RX size check for decryption - crypto: afalg - Fix page reassignment overflow in afalgpulltsgl - crypto: authencesn - Fix src offset when decrypting in-place - crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption - crypto: authenc - use...

CLSA-2026-1775831524 Fix of 8 CVEs

CVE-2024-56640 - net/smc: fix LGR and link use-after-free issue CVE-2024-56640 CVE-2026-23209 - macvlan: fix error recovery in macvlancommonnewlink CVE-2026-23209 CVE-2026-23193 - scsi: target: iscsi: Fix use-after-free in iscsitdecsessionusagecount CVE-2026-23193 CVE-2026-23204 - net/sched:...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-006569)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006569 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/core: Exit early on perfmmap fail When perfmmap fails to allocate a buffer, it still invokes...

SUSE CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248 perf/core: Fix refcount bug and potential UAF in perf_mmap

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248

CVE-2026-23248 affects the Linux kernel perf/core component, specifically the perf_mmap path that initializes a ring_buffer. The issue is a race between a failing mmap() setup and a concurrent mmap() on a dependent event (e.g., due to output redirection). The ring_buffer pointer (event->rb) is...

CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

CVE-2026-23248 perf/core: Fix refcount bug and potential UAF in perf_mmap

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

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 a race condition in the perfmmap function. This condition may lead to improper reuse after...

SUSE CVE-2026-23127

In the Linux kernel, the following vulnerability has been resolved: perf: Fix refcount warning on event-mmapcount increment When calling refcountinc&event-mmapcount inside perfmmaprb, the following warning is triggered: refcountt: addition on 0; use-after-free. WARNING: lib/refcount.c:25 PoC:...

Linux Distros Unpatched Vulnerability : CVE-2026-23127

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: perf: Fix refcount warning on event-mmapcount increment When calling...

PT-2026-8120

In the Linux kernel, the following vulnerability has been resolved: perf: Fix refcount warning on event-mmap count increment When calling refcount inc&event-mmap count inside perf mmap rb, the following warning is triggered: refcount t: addition on 0; use-after-free. WARNING: lib/refcount.c:25 Po...

PT-2026-26051

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Linux kernel perf event subsystem during ring buffer management. The issue occurs in the perf mmap function when a mmap setup fails and a concurrent mmap i...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990473)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990473 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large A...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: perf/core: Early exit occurs when perfmmap fails. When perfmmap fails to allocate a buffer, it still invokes the eventmapped callback of the related event. On X86 architecture, this may increase the perfrdpmcallowed reference...