Branch: refs/heads/master
Home: https://github.com/tianocore/edk2-libc
Commit: d3dea661da9ae4a3421a80905e75a8dc77aa980e
https://github.com/tianocore/edk2-libc/commit/d3dea661da9ae4a3421a80905e75a8dc77aa980e
Author: Jayaprakash, N <[email protected]>
Date: 2023-07-31 (Mon, 31 Jul 2023)
Changed paths:
M StdLib/BsdSocketLib/res_init.c
Log Message:
-----------
edk2-libc/StdLib: Fix uninitialized global variable
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4506
res_init() is called from different places in sockets library. It depends
on global _res variable containing a state.
The problem is that if __BIND_RES_TEXT macro is not defined, _res is not
initialized.
Depending on compiler and build optimization this can fill the
variable with garbage that is later used by res_init().
Fix is trivial - explicitly initialize _res.
Cc: Rebecca Cran <[email protected]>
Cc: Michael D Kinney <[email protected]>
Cc: Jayaprakash Nevara <[email protected]>
Signed-off-by: Kloper Dimitry <[email protected]>
Reviewed-by: Jayaprakash Nevara <[email protected]>
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