kernel: v4l: videobuf: hotfix a bug on multiple calls to mmap()
Published Apr 24, 2017
4.3
MEDIUMCVSS 3.1
EPSS 0.40%
Description
Memory leak in drivers/media/video/videobuf-core.c in the videobuf subsystem in the Linux kernel 2.6.x through 4.x allows local users to cause a denial of service (memory consumption) by leveraging /dev/video access for a series of mmap calls that require new allocations, a different vulnerability than CVE-2007-6761. NOTE: as of 2016-06-18, this affects only 11 drivers that have not been updated to use videobuf2 instead of videobuf.
Affected products
No data.
- ≥ 2.6.0 · ≤ 4.20.15
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. Based on the absence of upstream patch addressing this issue in VIDEOBUF (newer drivers using VIDEOBUF2 are not affected) implementation and that Red Hat Product Security has rated this issue as having Low security impact, this issue is not currently planned to be addressed in future kernel updates for the respective releases. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.40% (0.00401) | 32.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00401) | 31.66th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00030) | 5.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 13, 2023 | 0.95% (0.00950) | 31.86th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.03% (0.01034) | 40.96th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (8)
- http://linuxtv.org/irc/v4l/index.php?date=2010-07-29 x_refsource_MISCNot Applicable
- http://www.openwall.com/lists/oss-security/2015/02/08/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2010-5321 Vendor Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827340 x_refsource_MISCIssue TrackingMailing ListThird Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=120571 x_refsource_MISCIssue TrackingThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=620629 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2010-5321
- https://www.cve.org/CVERecord?id=CVE-2010-5321
| Link | Providers | Tags |
|---|---|---|
| http://linuxtv.org/irc/v4l/index.php?date=2010-07-29 | x_refsource_MISCNot Applicable | |
| http://www.openwall.com/lists/oss-security/2015/02/08/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2010-5321 | Vendor Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827340 | x_refsource_MISCIssue TrackingMailing ListThird Party Advisory | |
| https://bugzilla.kernel.org/show_bug.cgi?id=120571 | x_refsource_MISCIssue TrackingThird Party AdvisoryVDB Entry | |
| https://bugzilla.redhat.com/show_bug.cgi?id=620629 | x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-5321 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-5321 |
Change history (0)
No recorded changes yet.