The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
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Score 7.1 from GitHub Security Advisory published 2022-05-02. NVD baseline CVSS 7.1; sources differ by 0.0.
A fix is available — apply it.
The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
November 16, 2009
April 23, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: kernel security and bug fix update
Red Hat Security Advisory: kernel security and bug fix update
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-2.6.28-17-lpia (2.6.28-17.58) @ jaunty | 2026-05-30 | ubuntu |
| redhat | kernel-0:2.6.9-89.0.20.EL | 2010-02-02 | redhat |
| redhat | kernel-0:2.6.18-164.11.1.el5 | 2010-01-19 | redhat |
| redhat | kernel-rt-0:2.6.24.7-139.el5rt | 2009-12-03 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Explore the affected products and dependency analysis for CVE-2009-3939
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redhat
CWE-732