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| author | Chris Wright <chrisw@sous-sol.org> | 2007-06-01 07:46:39 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-01 15:18:28 (GMT) |
| commit | 0939c17c7bcf1c838bea4445b80a6966809a438f (patch) | |
| tree | 3d93789babaab344aa9c6840e267ffe34caadc6c /kernel/rwsem.c | |
| parent | 24faa9eef876d39e0826a36f31ae0e8b0eeb9835 (diff) | |
| download | linux-fsl-qoriq-0939c17c7bcf1c838bea4445b80a6966809a438f.tar.xz | |
x86: fix oprofile double free
Chuck reports that the recent fix from Andi to oprofile
6c977aad03a18019015035958c65b6729cd0574c introduces a double free. Each
cpu's cpu_msrs is setup to point to cpu 0's, which causes free_msrs to free
cpu 0's pointers for_each_possible_cpu. Rather than copy the pointers, do
a deep copy instead.
[acme@redhat.com: allocate_msrs() was using for_each_online_cpu()]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dave Jones <davej@redhat.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rwsem.c')
0 files changed, 0 insertions, 0 deletions