Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | linux-2.6 | 2.6.26-21lenny3 | DSA-1996-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +11 | 2.6.18-164.11.1.el5 | RHSA-2010:0046 |
| RHEL 4 | kernel +10 | 2.6.9-89.0.20.EL | RHSA-2010:0076 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-139.el5rt | RHSA-2009:1635 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 4.8.13-1.1 | openSUSE-SU-2024:10128-1 |
Advisories 5
- RHSA-2010:0046 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0076 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2009:1635 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-1996-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10128-1 kernel-debug-4.8.13-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 38276 third-party-advisory
- SUSE-SA:2009:061 vendor-advisory
- USN-864-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=526068
- SUSE-SA:2010:001 vendor-advisory
- 38779 third-party-advisory
- 37019 vdb-entry
- http://support.avaya.com/css/P8/documents/100073666
- SUSE-SA:2010:012 vendor-advisory
- 37909 third-party-advisory
- SUSE-SA:2010:014 vendor-advisory
- SUSE-SA:2009:064 vendor-advisory
- DSA-1996 vendor-advisory
- [oss-security] 20091113 CVE request: kernel: bad permissions on megaraid_sas sysfs files mailing-list
- oval:org.mitre.oval:def:10310 vdb-entry signature
- RHSA-2010:0095 vendor-advisory
- SUSE-SA:2010:005 vendor-advisory
- 60201 vdb-entry
- RHSA-2010:0046 vendor-advisory
- oval:org.mitre.oval:def:7540 vdb-entry signature
- SUSE-SA:2010:010 vendor-advisory
- 38017 third-party-advisory
- 38492 third-party-advisory