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kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

🗓️ 25 Feb 2026 04:10:15Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 17 Views

Local attacker can mount Squashfs and trigger corruption via ioctl from block size miscalculation.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-1080)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1111)
4 Aug 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2025-3013 (ALAS-2025-3013)
30 Sep 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2025-098 (ALASKERNEL-5.10-2025-098)
4 Aug 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-082 (ALASKERNEL-5.15-2025-082)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-104 (ALASKERNEL-5.4-2025-104)
10 Jul 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2026:1661)
2 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2026:1662)
2 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2026:2212)
12 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:2282)
12 Feb 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8ppc64lebpftool0:4.18.0-477.130.1.el8_8bpftool-0:4.18.0-477.130.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64bpftool0:4.18.0-477.130.1.el8_8bpftool-0:4.18.0-477.130.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lebpftool-debuginfo0:4.18.0-477.130.1.el8_8bpftool-debuginfo-0:4.18.0-477.130.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64bpftool-debuginfo0:4.18.0-477.130.1.el8_8bpftool-debuginfo-0:4.18.0-477.130.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lekernel0:4.18.0-477.130.1.el8_8kernel-0:4.18.0-477.130.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64kernel0:4.18.0-477.130.1.el8_8kernel-0:4.18.0-477.130.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8noarchkernel-abi-stablelists0:4.18.0-477.130.1.el8_8kernel-abi-stablelists-0:4.18.0-477.130.1.el8_8.noarch.rpm
Red Hat Enterprise Linux8.8ppc64lekernel-core0:4.18.0-477.130.1.el8_8kernel-core-0:4.18.0-477.130.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64kernel-core0:4.18.0-477.130.1.el8_8kernel-core-0:4.18.0-477.130.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8ppc64lekernel-debug0:4.18.0-477.130.1.el8_8kernel-debug-0:4.18.0-477.130.1.el8_8.ppc64le.rpm
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30 Jun 2026 04:33Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.8
EPSS0.00181
SSVC
CWE-252
Squashfs vulnerabilitymemory corruptionblock size miscalculationioctl attacklocal attackerdenial of service
17