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 <rebe...@nuviainc.com> Cc: Michael D Kinney <michael.d.kin...@intel.com> Co-authored-by: Kloper Dimitry <dimitry.klo...@intel.com> Signed-off-by: Jayaprakash N <n.jayaprak...@intel.com> --- StdLib/BsdSocketLib/res_init.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/StdLib/BsdSocketLib/res_init.c b/StdLib/BsdSocketLib/res_init.c index 613a76a..6421d9a 100644 --- a/StdLib/BsdSocketLib/res_init.c +++ b/StdLib/BsdSocketLib/res_init.c @@ -122,9 +122,10 @@ static u_int32_t net_mask __P((struct in_addr)); struct __res_state _res # if defined(__BIND_RES_TEXT) - = { RES_TIMEOUT, } /* Motorola, et al. */ -# endif - ; + = { RES_TIMEOUT, }; /* Motorola, et al. */ +#else + = {0}; +#endif /* -- 2.40.0.windows.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#107130): https://edk2.groups.io/g/devel/message/107130 Mute This Topic: https://groups.io/mt/100279095/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-