The make_indexed_dir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate…

Description

The make_indexed_dir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate a certain rec_len field, which allows local users to cause a denial of service (OOPS) by attempting to mount a crafted ext4 filesystem.

Scores

EPSS (exploitation in 30 days)

0.75% · top 45% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (18)

• oval:org.mitre.oval:def:8039 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19 (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2009-0509 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 37471 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2009:1243 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• linux-kernel-makeindexeddir-ext4-dos(48872) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• DSA-1749 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 52202 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• USN-751-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• http://bugzilla.kernel.org/show_bug.cgi?id=12430 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 36562 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 34394 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7 (opens in a new tab)x_refsource_CONFIRMx_transferred
• oval:org.mitre.oval:def:10342 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• ADV-2009-3316 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2009-0746](https://trackcve.app/badge/CVE-2009-0746.svg)](https://trackcve.app/cve/CVE-2009-0746)

Record last updated 7 Aug 2024, 04:48 UTC.