diff options
| author | Oren Laadan <orenl@cs.columbia.edu> | 2006-01-08 01:03:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:14:00 -0800 |
| commit | 9a5d3023e626a0baf86ac6b892c983b3db13f22b (patch) | |
| tree | 41d1be6513fc3a5367414654eeaf11bbb12d4814 /kernel/sys.c | |
| parent | fb86a35b9ded8a7e53a432cbf28df603cdd4849c (diff) | |
[PATCH] fork: fix race in setting child's pgrp and tty
In fork, child should recopy parent's pgrp/tty after it has tasklist_lock.
Otherwise following a setpgid() on the parent, *after* copy_signal(), the
child will own a stale pgrp (which may be reused); (eg. if copy_mm()
sleeps a long while due to memory pressure). Similar issue for the tty.
Signed-off-by: Oren Laadan <orenl@cs.columbia.edu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions