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KernelTrap: Auditing Kernel Code

Jan 18, 2005, 23:30 (0 Talkback[s])

"Following the recent string of security-related kernel issues, the question was raised on the lkml what formal effort is being made to audit new patches. Long time Linux kernel guru Alan Cox noted two trends that he considers positive. First, that 'tools like coverity and sparse are significantly increasing the number of flaws found,' often finding flaws that have been in the code a long time. Second, Alan noted that security holes tend to come in bursts all related to the same type of problem. He explains, 'if you plot things like 'buffer overflow' 'structure passed to user space not cleaned' 'maths overflow check error' against time you'll see they show definite patterns with spikes decaying at different rates towards zero.' Alan added, 'there are also people other than Linus who read every single changeset. I do for one...'"

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