Description
The osf_getsysinfo function in arch/alpha/kernel/osf_sys.c in the Linux kernel before 2.6.39.4 on the Alpha platform does not properly restrict the data size for GSI_GET_HWRPB operations, which allows local users to obtain sensitive information from kernel memory via a crafted call.
References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
- [oss-security] 20110615 Re: CVE request: kernel: alpha: fix several security issues mailing-list
- https://github.com/torvalds/linux/commit/21c5977a836e399fc710ff2c5367845ed5c2527f
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=21c5977a836e399fc710ff2c5367845ed5c2527f