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kernel: ext4: fix off-by-one error in do_split

🗓️ 23 Jun 2025 07:46:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

Kernel ext4 fixes off-by-one in do_split to prevent use-after-free in ext4_insert_dentry.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1050)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-995)
12 Jun 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2025-2944 (ALAS-2025-2944)
31 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2025-094 (ALASKERNEL-5.10-2025-094)
9 Jun 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-073 (ALASKERNEL-5.15-2025-073)
9 Jun 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-079)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-102 (ALASKERNEL-5.4-2025-102)
29 May 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2025:11298)
16 Jul 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2025:11299)
16 Jul 202500:00
–nessus
Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2025:9302)
3 Jul 202500:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.0aarch64kernel0:6.12.0-55.18.1.el10_0kernel-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lekernel0:6.12.0-55.18.1.el10_0kernel-0:6.12.0-55.18.1.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xkernel0:6.12.0-55.18.1.el10_0kernel-0:6.12.0-55.18.1.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64kernel0:6.12.0-55.18.1.el10_0kernel-0:6.12.0-55.18.1.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k0:6.12.0-55.18.1.el10_0kernel-64k-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k-core0:6.12.0-55.18.1.el10_0kernel-64k-core-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k-debug0:6.12.0-55.18.1.el10_0kernel-64k-debug-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k-debug-core0:6.12.0-55.18.1.el10_0kernel-64k-debug-core-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k-debug-debuginfo0:6.12.0-55.18.1.el10_0kernel-64k-debug-debuginfo-0:6.12.0-55.18.1.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0aarch64kernel-64k-debug-devel0:6.12.0-55.18.1.el10_0kernel-64k-debug-devel-0:6.12.0-55.18.1.el10_0.aarch64.rpm
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6.5Medium risk
Vulners AI Score6.5
CVSS 3.15.5
EPSS0.00171
SSVC
CWE-416
ext4do splituse after freeext4 insert dentrykernel fix
5