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CVE-2012-0879
The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows…
Medium5.5EPSS 0.47%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (18)
- RHSA-2012:0531 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=61cc74fbb87af6aa551a06a370590c9bc07e29d9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1408-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20120223 Re: CVE request -- kernel: block: CLONE_IO io_context refcounting issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1027086 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-2469 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2012:0481 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=796829 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2012:0616 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 48545 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-1411-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/torvalds/linux/commit/b69f2292063d2caf37ca9aec7d63ded203701bf3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 48842 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://github.com/torvalds/linux/commit/61cc74fbb87af6aa551a06a370590c9bc07e29d9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.33 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1410-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- HPSBGN02970 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b69f2292063d2caf37ca9aec7d63ded203701bf3 (opens in a new tab)x_refsource_CONFIRMx_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
[](https://cveledger.app/cve/CVE-2012-0879)Record last updated .