Hide Forgot
Description of problem: The SNDRV_HDSP_IOCTL_GET_CONFIG_INFO ioctl in hdsp.c allows unprivileged users to read uninitialized kernel stack memory, because several fields of the hdspm_config_info structs declared on the stack are not altered or zeroed before being copied back to the user. Reference: http://www.openwall.com/lists/oss-security/2010/10/06/6 http://lkml.org/lkml/2010/9/25/41 Acknowledgements: Red Hat would like to thank Dan Rosenberg for reporting this issue.
Statement: This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3 as it did not include support for RME Hammerfall DSP Audio.
Upstream commit: http://git.kernel.org/linus/e68d3b316ab7b02a074edc4f770e6a746390cb7d
This issue has been addressed in following products: MRG for RHEL-5 Via RHSA-2010:0958 https://rhn.redhat.com/errata/RHSA-2010-0958.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Via RHSA-2011:0162 https://rhn.redhat.com/errata/RHSA-2011-0162.html