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2.4.36-pre1, Preventing NULL Dereferences

Sep 10, 2007, 14:00 (0 Talkback[s])


Desktop-as-a-Service Designed for Any Cloud ? Nutanix Frame

"'I've just released Linux 2.4.36-pre1,' announced 2.4 maintainer Willy Tarreau. He described a new feature found in the first pre-release:

"'In private discussions, Solar Designer proposed to restrict the ability to map the NULL address to CAP_RAW_IO capable processes only. The idea behind this was to prevent 'normal' users from trying to exploit NULL dereferences in the kernel which have not been discovered yet. This is purely a preventive measure...'"

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