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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-07-14 13:45:34 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-07-16 20:00:20 +0200 |
| commit | c6742b14fe7352059cd4954a356a8105757af31b (patch) | |
| tree | eae15d976e0f23a28cc004a44ca863ed440cb888 /crypto/cipher-nettle.c | |
| parent | 24b41d66c8ad8f77839fca777b92e365dad0cf5c (diff) | |
| download | qemu-c6742b14fe7352059cd4954a356a8105757af31b.tar.gz qemu-c6742b14fe7352059cd4954a356a8105757af31b.tar.bz2 qemu-c6742b14fe7352059cd4954a356a8105757af31b.zip | |
memory: fix refcount leak in memory_region_present
memory_region_present() leaks a reference to a MemoryRegion in the
case "mr == container". While fixing it, avoid reference counting
altogether for memory_region_present(), by using RCU only.
The return value could in principle be already invalid immediately
after memory_region_present returns, but presumably the caller knows
that and it's using memory_region_present to probe for devices that
are unpluggable, or something like that. The RCU critical section
is needed anyway, because it protects as->current_map.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'crypto/cipher-nettle.c')
0 files changed, 0 insertions, 0 deletions