mirror of https://github.com/acidanthera/audk.git
5ece2ad36c
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3666 Currently, CoreLocateHandleBuffer() follows three steps: 1) get the size of protocol database firstly 2) allocate the buffer based on the size 3) get the protocol database into the buffer There is no lock protection for the whole three steps. If a new protocol added in step 2) by other task, e.g. (event timer handle USB device hotplug). The size of protocol database may be increased and cannot fit into the previous buffer in step 3). The protocol database cannot be returned successfully, EFI_BUFFER_TOO_SMALL error will be returned. This patch adds the lock to protect the whole three steps. It can make sure the correct protocol database be returned. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Dandan Bi <dandan.bi@intel.com> Signed-off-by: Hua Ma <hua.ma@intel.com> Reviewed-by: Dandan Bi dandan.bi@intel.com Reviewed-by: Liming Gao gaoliming@byosoft.com.cn |
||
|---|---|---|
| .. | ||
| Dxe | ||
| DxeIplPeim | ||
| Pei | ||
| PiSmmCore | ||
| RuntimeDxe | ||