CVE-2026-53174

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

UBUNTU-CVE-2026-53174

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53174 ovl: keep err zero after successful ovl_cache_get()

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

EUVD-2026-39265

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53174

CVE-2026-53174 affects the Linux kernel overlay filesystem (ovl). The bug in ovl_iterate_merged() stores PTR_ERR(cache) in err before validating the cache with IS_ERR(cache), so on success err may hold a truncated cache pointer and be returned as a bogus non-zero error. The repro path goes throug...

CVE-2026-53174

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53174 ovl: keep err zero after successful ovl_cache_get()

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

RLSA-2026:27812 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 For more details about the security issues, including the...

kernel security update

An update is available for kernel. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

PT-2026-52270

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ovl iterate merged function where the err variable is assigned the value of PTR ERRcache before verifying if cache is an error using IS ERRcache. When the operatio...

Malicious code in syco1 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e43be65a0930b121cf4d610c70b2d07165e4d335dece4344590b471d078fa5b5 Package self-describes as a 'System binary configuration tool' but ships a covert screen and clipboard surveillance overlay. pointer.py captures...

MAL-2026-6406 Malicious code in syspo (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 6f89c590b7c90182cb86bc3e45f71f2357003f4359b6e94818fc996951762f5c The package is published as a 'System binary configuration tool' but its actual behavior is a covert clipboard/screen-capture overlay. On invocation...

MAL-2026-6404 Malicious code in syco1 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e43be65a0930b121cf4d610c70b2d07165e4d335dece4344590b471d078fa5b5 Package self-describes as a 'System binary configuration tool' but ships a covert screen and clipboard surveillance overlay. pointer.py captures...

MAL-2026-6405 Malicious code in sypoi1 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector b22a9450e70ba1095097d2779ad6da01c111c37e940d890fbfc21d1aeb6a0f11 On require, index.js silently bootstraps a full Python runtime on the installer's machine — first via winget install -e --id Python.Python.3.12...

Astra Linux – Vulnerability in libheif

libheif is a decoder and encoder for HEIF and AVIF file formats. Prior to version 1.21.0, a crafted HEIF file that used overlay image item paths triggered a heap buffer overflow in HeifPixelImage::overlay. This function calculated a negative row length likely derived from an unclipped overlay...

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

A flaw was found in the Linux kernel's SELinux security module when handling overlayfs. The existing security model for overlayfs does not properly enforce access controls for mmap and mprotect operations. This oversight could allow a local attacker to bypass intended security policies, potential...

Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : libheif vulnerabilities (USN-8454-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8454-1 advisory. Elhanan Haenel discovered that libheif incorrectly handled certain malformed HEIF sequence files...

Astra Linux – Vulnerability in Linux 6.1

On Ubuntu kernels that carry both c914c0e27eb0 and “UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs. xattrs”, a non-privileged user may set privileged extended attributes on mounted files, causing those attributes to be applied to the upper files without the appropriate...

USN-8454-1: libheif vulnerabilities

Elhanan Haenel discovered that libheif incorrectly handled certain malformed HEIF sequence files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 25.10 and Ubuntu 26.04 LTS. CVE-2026-32738 Elhanan Haenel discovered that libheif incorrectly...

CVE-2026-9125

The Presto Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'linkurl' parameter of the prestoplayeroverlay shortcode in versions up to, and including, 4.2.0 This is due to insufficient input sanitization and output escaping in the getOverlays function, which copies...