| commit | 5af759176cc767e7426f89764bde4996ebaaf419 | [log] [tgz] |
|---|---|---|
| author | Mike Galbraith <efault@gmx.de> | Wed Feb 11 10:53:37 2009 +0100 |
| committer | Ingo Molnar <mingo@elte.hu> | Wed Feb 11 11:30:10 2009 +0100 |
| tree | 0dcd0dafb569755f96fc6ee99db83259ecf5442c | |
| parent | ffc046729381ec039a87dc2c00d2899fcc8785e3 [diff] |
perfcounters: fix use after free in perf_release()
running...
while true; do
foo -d 1 -f 1 -c 100000 & sleep 1
kerneltop -d 1 -f 1 -e 1 -c 25000 -p `pidof foo`
done
while true; do
killall foo; killall kerneltop; sleep 2
done
...in two shells with SLUB_DEBUG enabled produces flood of:
BUG task_struct: Poison overwritten.
Fix the use-after-free bug in perf_release().
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>