The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before…
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 2.6.19; 2.6.27 to before 2.6.27.24; 2.6.29 to before 2.6.29.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:* | 2.6.30 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:* | 2.6.30 rc2 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* | 8.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* | 8.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* | 9.04 | Vulnerable | Canonical |
| cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:* | 10.3 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:* | 11.1 | Vulnerable | openSUSE |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.19; 2.6.27 to before 2.6.27.24; 2.6.29 to before 2.6.29.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:* Versions 2.6.30 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:* Versions 2.6.30 rc2 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* Versions 9.04 Vulnerable ·Canonical
- cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:* Versions 10.3 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:* Versions 11.1 Vulnerable ·openSUSE
Remediation
Red Hat 1 advisory
- RHSA-2009:1157 Released 2009-07-14 · Red Hat rating Importantkernel-rt security and bug fix update
- MRG Realtime for RHEL 5 Server kernel-rt-2.6.24.7-126.el5rt, kernel-rt-debug-2.6.24.7-126.el5rt, kernel-rt-debug-devel-2.6.24.7-126.el5rt +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| MRG Realtime for RHEL 5 Server | Fixed | RHSA-2009:1157 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1961
- 2026-10-03 Alias added: GHSA-53cw-7857-2j7g
References
Exploit 3
Advisory 7
Sources
- CVE-2009-1961 · CVE Program
- CVE-2009-1961 · NVD
- FIRST EPSS
- GHSA-53cw-7857-2j7g · GitHub Advisory Database · CC BY 4.0
- CVE-2009-1961 · Red Hat security data · CC BY 4.0
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