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kernel: Linux kernel ext4: Information Disclosure via uninitialized memory leak in fast-commit journal

🗓️ 09 May 2023 10:04:02Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 9 Views

The Linux kernel ext4 fast-commit journal leaks uninitialized memory to disk, enabling local disclosure.

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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-013 (ALASKERNEL-5.15-2023-013)
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Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1212)
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Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1224)
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Tenable Nessus		EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2026-1629)
18 Mar 202600:00
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Tenable Nessus		Photon OS 4.0: Linux PHSA-2021-4.0-0065
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Tenable Nessus		SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2025:03615-1)
21 Oct 202500:00
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Tenable Nessus		Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005641)
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2aarch64bpftool7.0.0-284.11.1.el9_2bpftool-7.0.0-284.11.1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lebpftool7.0.0-284.11.1.el9_2bpftool-7.0.0-284.11.1.el9_2.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xbpftool7.0.0-284.11.1.el9_2bpftool-7.0.0-284.11.1.el9_2.s390x.rpm
Red Hat Enterprise Linux9.2x86_64bpftool7.0.0-284.11.1.el9_2bpftool-7.0.0-284.11.1.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64bpftool-debuginfo7.0.0-284.11.1.el9_2bpftool-debuginfo-7.0.0-284.11.1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lebpftool-debuginfo7.0.0-284.11.1.el9_2bpftool-debuginfo-7.0.0-284.11.1.el9_2.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xbpftool-debuginfo7.0.0-284.11.1.el9_2bpftool-debuginfo-7.0.0-284.11.1.el9_2.s390x.rpm
Red Hat Enterprise Linux9.2x86_64bpftool-debuginfo7.0.0-284.11.1.el9_2bpftool-debuginfo-7.0.0-284.11.1.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64kernel5.14.0-284.11.1.el9_2kernel-5.14.0-284.11.1.el9_2.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lekernel5.14.0-284.11.1.el9_2kernel-5.14.0-284.11.1.el9_2.ppc64le.rpm
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08 Jul 2026 12:28Current
7High risk
Vulners AI Score7
CVSS 3.15.5
EPSS0.00146
CWE-909
linux kernelext4 filesystemfast-commit journaluninitialized memoryinformation disclosurelocal attacker
9