Description
The snd_hdspm_hwdep_ioctl function in sound/pci/rme9652/hdspm.c in the Linux kernel before 2.6.36-rc6 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via an SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO ioctl call.
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 | 2.6.26-26lenny1 | DSA-2126-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +14 | 2.6.32-71.14.1.el6 | RHSA-2011:0007 |
| RHEL 5 | kernel +12 | 2.6.18-238.el5 | RHSA-2011:0017 |
Advisories 3
- RHSA-2011:0007 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:0017 Red Hat Security Advisory: Red Hat Enterprise Linux 5.6 kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2126-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- [oss-security] 20100925 CVE request: multiple kernel stack memory disclosures mailing-list
- 42778 third-party-advisory
- 42801 third-party-advisory
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- RHSA-2011:0017 vendor-advisory
- 46397 third-party-advisory
- SUSE-SA:2011:002 vendor-advisory
- [oss-security] 20101006 Re: CVE request: multiple kernel stack memory disclosures mailing-list
- SUSE-SA:2011:001 vendor-advisory
- [linux-kernel] 20100925 [PATCH] sound/pci/rme9652: prevent reading uninitialized stack memory mailing-list
- RHSA-2011:0007 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=648670
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e68d3b316ab7b02a074edc4f770e6a746390cb7d
- SUSE-SA:2011:007 vendor-advisory
- SUSE-SA:2010:060 vendor-advisory
- ADV-2011-0298 vdb-entry
- [oss-security] 20101006 Re: CVE request: multiple kernel stack memory disclosures mailing-list
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- 42884 third-party-advisory
- ADV-2011-0375 vdb-entry
- 42890 third-party-advisory
- ADV-2011-0012 vdb-entry
- SUSE-SA:2011:008 vendor-advisory
- [oss-security] 20101025 Re: CVE request: multiple kernel stack memory disclosures mailing-list
- 45063 vdb-entry
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc6
- 43291 third-party-advisory
- DSA-2126 vendor-advisory