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GB28181: Fix memory overlap for small packets. v5.0.111 (#3315)

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Winlin 2022-12-17 15:05:10 +08:00 • committed by GitHub
parent a36cb57949
commit 56040cab42
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3 changed files with 5 additions and 3 deletions
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5
trunk/src/app/srs_app_gb28181.cpp
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@ -1444,8 +1444,9 @@ srs_error_t SrsLazyGbMediaTcpConn::do_cycle()
string bytes = srs_string_dumps_hex(b.head(), reserved, 16);
srs_trace("PS: Reserved bytes for next loop, pos=%d, left=%d, total=%d, bytes=[%s]",
b.pos(), b.left(), b.size(), bytes.c_str());
// Copy the bytes left to the start of buffer.
b.read_bytes((char*)buffer_, reserved);
// Copy the bytes left to the start of buffer. Note that the left(reserved) bytes might be overlapped with
// buffer, so we must use memmove not memcpy, see https://github.com/ossrs/srs/issues/3300#issuecomment-1352907075
memmove(buffer_, b.head(), reserved);
pack_->media_reserved_++;
}
}

2
trunk/src/core/srs_core_version5.hpp
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@ -9,6 +9,6 @@
#define VERSION_MAJOR 5
#define VERSION_MINOR 0
#define VERSION_REVISION 110
#define VERSION_REVISION 111
#endif