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libbacktrace: Fix uninitialized variable #39509

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Feb 5, 2017
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libbacktrace: Fix uninitialized variable #39509

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4 changes: 3 additions & 1 deletion src/libbacktrace/pecoff.c
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Original file line number Diff line number Diff line change
Expand Up @@ -607,7 +607,9 @@ coff_add (struct backtrace_state *state, int descriptor,
// against the upstream libbacktrace, that's what's going on.
uint32_t str_size;
off_t str_off;
struct backtrace_view syms_view;
// NOTE: upstream doesn't have `{0}`, this is a fix for Rust issue #39468.
// If syms_view is not initialized, then `free(syms_view.base)` may segfault later.
struct backtrace_view syms_view = {0};
off_t syms_off;
size_t syms_size;
int syms_view_valid;
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