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| author | Kirill Korotaev <dev@sw.ru> | 2006-08-13 23:24:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-08-14 12:54:29 -0700 |
| commit | 6997a6faaa129a1c91775f7344c8d371a05178ea (patch) | |
| tree | d1dbf57afc7d561620ad1b192ae031fd234b085a /mm/fadvise.c | |
| parent | 012c437d03cb299814e58ac8d574f7510f5989a5 (diff) | |
| download | linux-6997a6faaa129a1c91775f7344c8d371a05178ea.tar.gz linux-6997a6faaa129a1c91775f7344c8d371a05178ea.tar.bz2 linux-6997a6faaa129a1c91775f7344c8d371a05178ea.zip | |
[PATCH] sys_getppid oopses on debug kernel
sys_getppid() optimization can access a freed memory. On kernels with
DEBUG_SLAB turned ON, this results in Oops. As Dave Hansen noted, this
optimization is also unsafe for memory hotplug.
So this patch always takes the lock to be safe.
[oleg@tv-sign.ru: simplifications]
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Cc: <stable@kernel.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/fadvise.c')
0 files changed, 0 insertions, 0 deletions