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kernel: ext4: regenerate buddy after block freeing failed if under fc replay

🗓️ 04 Dec 2024 00:56:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 13 Views

Ext4 fast commit replay can re-mark free blocks, corrupting the buddy bitmap and risking data loss; mb_regenerate_buddy is reintroduced.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2024-549)
6 Mar 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-052)
1 Apr 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2024-076 (ALASKERNEL-5.10-2024-076)
23 Dec 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.15-2024-040)
1 Apr 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2024-058 (ALASKERNEL-5.15-2024-058)
23 Dec 202400:00
–nessus
Tenable Nessus		Debian dla-3842 : linux-config-5.10 - security update
27 Jun 202400:00
–nessus
Tenable Nessus		Debian dsa-5658 : affs-modules-6.1.0-11-4kc-malta-di - security update
13 Apr 202400:00
–nessus
Tenable Nessus		Debian dsa-5681 : affs-modules-5.10.0-29-4kc-malta-di - security update
6 May 202400:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.11.1 : kernel (EulerOS-SA-2024-1734)
29 May 202400:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.11.0 : kernel (EulerOS-SA-2024-1735)
29 May 202400:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4aarch64bpftool7.3.0-427.47.1.el9_4bpftool-7.3.0-427.47.1.el9_4.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lebpftool7.3.0-427.47.1.el9_4bpftool-7.3.0-427.47.1.el9_4.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xbpftool7.3.0-427.47.1.el9_4bpftool-7.3.0-427.47.1.el9_4.s390x.rpm
Red Hat Enterprise Linux9.4x86_64bpftool7.3.0-427.47.1.el9_4bpftool-7.3.0-427.47.1.el9_4.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64bpftool-debuginfo7.3.0-427.47.1.el9_4bpftool-debuginfo-7.3.0-427.47.1.el9_4.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lebpftool-debuginfo7.3.0-427.47.1.el9_4bpftool-debuginfo-7.3.0-427.47.1.el9_4.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xbpftool-debuginfo7.3.0-427.47.1.el9_4bpftool-debuginfo-7.3.0-427.47.1.el9_4.s390x.rpm
Red Hat Enterprise Linux9.4x86_64bpftool-debuginfo7.3.0-427.47.1.el9_4bpftool-debuginfo-7.3.0-427.47.1.el9_4.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64kernel5.14.0-427.47.1.el9_4kernel-5.14.0-427.47.1.el9_4.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lekernel5.14.0-427.47.1.el9_4kernel-5.14.0-427.47.1.el9_4.ppc64le.rpm
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21 Jul 2026 20:54Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.15.5
EPSS0.00278
SSVC
CWE-118
ext filesystemlinux kernelfast commit replaybuddy bitmapdata lossregenerate buddy
13