]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
prctl: use CAP_SYS_RESOURCE for PR_SET_MM option
authorCyrill Gorcunov <gorcunov@openvz.org>
Thu, 15 Mar 2012 22:17:10 +0000 (15:17 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 16 Mar 2012 00:03:03 +0000 (17:03 -0700)
commit79f0713d403c800db9d89134e2fd7f846e68d6ee
tree0c59c69742d70080f08d3c42febdf51b8db236ad
parent9bbad7da76b3dd578fb55c862624366a8c9ccd22
prctl: use CAP_SYS_RESOURCE for PR_SET_MM option

CAP_SYS_ADMIN is already overloaded left and right, so to have more
fine-grained access control use CAP_SYS_RESOURCE here.

The CAP_SYS_RESOUCE is chosen because this prctl option allows a current
process to adjust some fields of memory map descriptor which rather
represents what the process owns: pointers to code, data, stack
segments, command line, auxiliary vector data and etc.

Suggested-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/sys.c