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kernel: NULL pointer dereference in ext4/mballoc.c:ext4_process_freed_data() when mounting crafted ext4 image

🗓️ 30 Oct 2018 10:04:28Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 11 Views

Kernel null pointer dereference in ext4_process_freed_data when mounting a crafted ext4 image causes a kernel panic.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 8 package kernel-image-std-pae version 1:4.4.129-alt0.M80P.1
26 Apr 201800:00
–altlinux
IBM Security Bulletins		Security Bulletin: IBM QRadar Network Security is affected by Linux kernel vulnerabilities
27 Jun 201908:40
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in the Linux Kernel affect PowerKVM
17 May 201916:05
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in the Linux kernel affect PowerKVM
26 Sep 201819:00
–ibm
BDU FSTEC		The vulnerability of the ext4_iget function in the Linux operating system’s kernel allows a hacker to cause a service failure.
25 May 201800:00
–bdu_fstec
Tenable Nessus		CentOS 7 : kernel (CESA-2018:3083)
16 Nov 201800:00
–nessus
Tenable Nessus		Debian DLA-1369-1 : linux security update (Spectre)
3 May 201800:00
–nessus
Tenable Nessus		Debian DSA-4187-1 : linux - security update (Spectre)
2 May 201800:00
–nessus
Tenable Nessus		Debian DSA-4188-1 : linux - security update (Spectre)
2 May 201800:00
–nessus
Tenable Nessus		EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1432)
28 Dec 201800:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64bpftool0:3.10.0-957.el7bpftool-0:3.10.0-957.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64kernel0:3.10.0-957.el7kernel-0:3.10.0-957.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel0:3.10.0-957.el7kernel-0:3.10.0-957.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xkernel0:3.10.0-957.el7kernel-0:3.10.0-957.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64kernel0:3.10.0-957.el7kernel-0:3.10.0-957.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-abi-whitelists0:3.10.0-957.el7.noarchkernel-abi-whitelists-0:3.10.0-957.el7.noarch.noarch.rpm
Red Hat Enterprise Linux7ppc64kernel-bootwrapper0:3.10.0-957.el7kernel-bootwrapper-0:3.10.0-957.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel-bootwrapper0:3.10.0-957.el7kernel-bootwrapper-0:3.10.0-957.el7.ppc64le.rpm
Red Hat Enterprise Linux7ppc64kernel-debug0:3.10.0-957.el7kernel-debug-0:3.10.0-957.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug0:3.10.0-957.el7kernel-debug-0:3.10.0-957.el7.ppc64le.rpm
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30 Jun 2026 11:35Current
6.7Medium risk
Vulners AI Score6.7
CVSS 35.5
CVSS 27.1
EPSS0.01999
CWE-476
Null pointerExt4 freed dataCrafted ext4 imageKernel panicMounting ext4 vulnerability
11