Unrated severityNVD Advisory· Published Feb 27, 2009· Updated Jun 16, 2026
CVE-2009-0747
CVE-2009-0747
Description
The ext4_isize function in fs/ext4/ext4.h in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 uses the i_size_high structure member during operations on arbitrary types of files, which allows local users to cause a denial of service (CPU consumption and error-message flood) by attempting to mount a crafted ext4 filesystem.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
43cpe:2.3:o:linux:linux_kernel:2.6.27:*:*:*:*:*:*:*+ 41 more
- cpe:2.3:o:linux:linux_kernel:2.6.27:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.14:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.15:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.16:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.17:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.18:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc8:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.27:rc9:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.28:rc7:*:*:*:*:*:*
- Range: <2.6.27.19, <2.6.28.7
Patches
Vulnerability mechanics
References
16- bugzilla.kernel.org/show_bug.cginvdPatch
- www.vupen.com/english/advisories/2009/0509nvdVendor Advisory
- git.kernel.orgnvd
- kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19nvd
- kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7nvd
- rhn.redhat.com/errata/RHSA-2009-1243.htmlnvd
- secunia.com/advisories/34394nvd
- secunia.com/advisories/36562nvd
- secunia.com/advisories/37471nvd
- www.debian.org/security/2009/dsa-1749nvd
- www.securityfocus.com/archive/1/507985/100/0/threadednvd
- www.ubuntu.com/usn/usn-751-1nvd
- www.vmware.com/security/advisories/VMSA-2009-0016.htmlnvd
- www.vupen.com/english/advisories/2009/3316nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8585nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9200nvd
News mentions
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