Description
The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.
References
- [oss-security] 20100925 CVE request: multiple kernel stack memory disclosures mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d281da7ff6f70efca0553c288bb883e8605b3862
- [oss-security] 20101006 Re: CVE request: multiple kernel stack memory disclosures mailing-list
- [linux-kernel] 20100915 [PATCH] drivers/char/amiserial.c: prevent reading uninitialized stack memory mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=648661
- [oss-security] 20101006 Re: CVE request: multiple kernel stack memory disclosures mailing-list
- [oss-security] 20101025 Re: CVE request: multiple kernel stack memory disclosures mailing-list