diff options
| author | Jack Steiner <[email protected]> | 2009-06-17 16:28:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2009-06-18 13:04:04 -0700 |
| commit | 1926ee85a903d189c5702eed6531be321e33eb47 (patch) | |
| tree | 1ae951591d3be09b86479800e2a4f03f119f4d78 /net/lapb/lapb_timer.c | |
| parent | b1b19fcfa417cf62447413d6e8b9b6598adf00b9 (diff) | |
gru: fix potential use-after-free when purging GRU tlbs
Fix potential SGI GRU bug that could cause a use-after-free. If one
thread in a task is flushing the GRU and another thread destroys the GRU
context, there is the potential to access a table after it has been freed.
Copy the gms pointer to a local variable before unlocking the gts table.
Note that no refcnt is needed for the gms - the reference is held
indirectly by the task's mm_struct.
Signed-off-by: Jack Steiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions