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[PATCH] PR_GET_DUMPABLE returns incorrect info
authorMichael Kerrisk <mtk-lkml@gmx.net>
Sat, 17 Sep 2005 02:28:02 +0000 (19:28 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sat, 17 Sep 2005 18:50:01 +0000 (11:50 -0700)
commit2030c0fd3db3332378f95f479c286181e3920644
tree3e281950e61e4659c0ca2cb04e63aa8d510013b8
parentafeda2c24e74cbddde376e06fdd82c215f9cb637
[PATCH] PR_GET_DUMPABLE returns incorrect info

2.6.13 incorporated Alan Cox's patch for /proc/sys/fs/suid_dumpable (one
version of this patch can be found here
http://marc.theaimsgroup.com/?l=linux-kernel&m=109647550421014&w=2 ).

This patch also made corresponding changes in kernel/sys.c to change the
prctl() PR_SET_DUMPABLE operation so that the permitted range of 'arg2' was
modified from 0..1 to 0..2.

However, a corresponding change was not made for PR_GET_DUMPABLE: if the
dumpable flag is non-zero, then PR_GET_DUMPABLE always returns 1, so that
the caller can't determine the true setting of this flag.

Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/sys.c