tree 912aa24f162342bffae86a0c3e4713700a9e5c66
parent 12b5989be10011387a9da5dee82e5c0d6f9d02e7
author Chris Wright <chrisw@sous-sol.org> 1143284861 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1143303776 -0800

[PATCH] make cap_ptrace enforce PTRACE_TRACME checks

PTRACE_TRACEME doesn't have proper capabilities validation when parent is
less privileged than child.  Issue pointed out by Ram Gupta
<ram.gupta5@gmail.com>.

Note: I haven't identified a strong security issue, and it's a small ABI
change that could break apps that rely on existing behaviour (which allows
parent that is less privileged than child to ptrace when child does
PTRACE_TRACEME).

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Ram Gupta <ram.gupta5@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>