Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
Fix unsafe access to BufferDescriptors
When considering a local buffer, the GetBufferDescriptor() call in
BufferGetLSNAtomic() would be retrieving a shared buffer with a bad
buffer ID. Since the code checks whether the buffer is shared before
using the retrieved BufferDesc, this issue did not lea
