AlmaLinux 9.2 [TuxCare] Security Update: bsdcat / bsdcpio / bsdtar / libarchive / libarchive-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1777365744)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1777365744 advisory. - A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper...

Rocky Linux 9.6 [TuxCare] Security Update: bsdcat / bsdcpio / bsdtar / libarchive / libarchive-devel (ALMALINUX9.6:CLSA-2026:1777366496)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1777366496 advisory. - A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic....

AZL-102995 CVE-2026-90434 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: isofs: release zisofs block pointer buffer head zisofsfillpages reads the compressed block pointer table. The error paths release the current bufferhead, the loop also releases the old bufferhead when it advances. However, the...

PT-2026-94782

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the zisofs fill pages function where the compressed block pointer table is read. While error paths and loop advancements correctly release the buffer head, the success...

DEBIAN-CVE-2026-89778

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

CVE-2026-89778

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

CVE-2026-89778

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

CVE-2026-89778

CVE-2026-89778 is an out-of-bounds page array access in the Linux kernel's zisofs (compressed ISO9660) filesystem. The root cause is in zisofs_uncompress_block()'s empty-block fast path, which returns pcount <

EUVD-2026-80299

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

CVE-2026-89778

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

CVE-2026-89778 isofs: fix out-of-bounds page array access on empty zisofs block

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

PT-2026-93384

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds page array access exists in the zisofs component of the ISO9660 file system. The issue occurs in the zisofs uncompress block function's empty-block fast path, which fail...

CVE-2026-89778: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: isofs: fix out-of-bounds page array access on empty zisofs block zisofsuncompressblock's empty-block fast path returns pcount 17, so a crafted "ZF" Rock Ridge record can set it below PAGESHIFT; the bug is reached by an ordinary...

EulerOS 2.0 SP11 : libarchive (EulerOS-SA-2026-3129)

According to the versions of the libarchive packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of...

EulerOS Virtualization 2.12.1 (EulerOS-SA-2026-2733)

According to the versions of the package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation...

EulerOS Virtualization 2.12.0 : libarchive (EulerOS-SA-2026-2779)

According to the versions of the libarchive package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper...

EulerOS 2.0 SP12 : libarchive (EulerOS-SA-2026-2598)

According to the versions of the libarchive packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of...

EulerOS 2.0 SP12 : libarchive (EulerOS-SA-2026-2538)

According to the versions of the libarchive packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of...

EulerOS 2.0 SP15 : libarchive (EulerOS-SA-2026-2445)

According to the versions of the libarchive packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of...

Security update for libarchive

This update for libarchive fixes the following issues CVE-2025-60753: bsdtar hangs and OOMs with zero-length pattern matches bsc1253088. CVE-2026-4111: logical deadlock the RAR5 filter subsystem and the half-window output limiter leads to infinite loop and DoS bsc1259635. CVE-2026-4424: informati...