s4:torture:basic: fix valgrind 'Syscall param writev(vector[...])' error

running smbtorture test base.aliases.FINDFIRST aliases.FINDFIRST aliases
results in the following valgrind trace

==22639== Syscall param writev(vector[...]) points to uninitialised byte(s)
==22639==    at 0xFBA2C87: writev (in /lib64/libc-2.19.so)
==22639==    by 0x106CB033: writev_handler (async_sock.c:340)
==22639==    by 0xF67812A: ??? (in /usr/lib64/libtevent.so.0.9.26)
==22639==    by 0xF6765F6: ??? (in /usr/lib64/libtevent.so.0.9.26)
==22639==    by 0xF6727FC: _tevent_loop_once (in /usr/lib64/libtevent.so.0.9.26)
==22639==    by 0x5AE3400: smbcli_request_receive (rawrequest.c:416)
==22639==    by 0x5AE6019: smb_raw_write_recv (rawreadwrite.c:303)
==22639==    by 0x5AE63FD: smb_raw_write (rawreadwrite.c:344)
==22639==    by 0x9BE50CA: smbcli_write (clireadwrite.c:118)
==22639==    by 0x423672: findfirst_aliases (aliases.c:213)
==22639==    by 0x16B21D: wrap_simple_1smb_test (util_smb.c:856)
==22639==    by 0x955368F: internal_torture_run_test (torture.c:442)
==22639==    by 0x9553A6B: torture_run_test_restricted (torture.c:542)
==22639==    by 0x2600A4: run_matching (smbtorture.c:110)
==22639==    by 0x25FF66: run_matching (smbtorture.c:95)
==22639==    by 0x25FF66: run_matching (smbtorture.c:95)
==22639==    by 0x2601C5: torture_run_named_tests (smbtorture.c:143)
==22639==    by 0x261E44: main (smbtorture.c:665)
==22639==  Address 0x187dfd26 is 598 bytes inside a block of size 1,325 alloc'd
==22639==    at 0x4C29110: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==22639==    by 0xF464A73: _talloc_pooled_object (in /usr/lib64/libtalloc.so.2.1.5)
==22639==    by 0xF67366D: _tevent_req_create (in /usr/lib64/libtevent.so.0.9.26)
==22639==    by 0xB0D49FF: smb1cli_req_create (smbXcli_base.c:1322)
==22639==    by 0x5ADFAB7: smbcli_transport_setup_subreq (clitransport.c:254)
==22639==    by 0x5ADFC37: smbcli_transport_send (clitransport.c:326)
==22639==    by 0x5AE33C3: smbcli_request_send (rawrequest.c:400)
==22639==    by 0x5AE5FDD: smb_raw_write_send (rawreadwrite.c:289)
==22639==    by 0x5AE63E6: smb_raw_write (rawreadwrite.c:343)
==22639==    by 0x9BE50CA: smbcli_write (clireadwrite.c:118)
==22639==    by 0x423672: findfirst_aliases (aliases.c:213)
==22639==    by 0x16B21D: wrap_simple_1smb_test (util_smb.c:856)
==22639==    by 0x955368F: internal_torture_run_test (torture.c:442)
==22639==    by 0x9553A6B: torture_run_test_restricted (torture.c:542)
==22639==    by 0x2600A4: run_matching (smbtorture.c:110)
==22639==    by 0x25FF66: run_matching (smbtorture.c:95)
==22639==    by 0x25FF66: run_matching (smbtorture.c:95)
==22639==    by 0x2601C5: torture_run_named_tests (smbtorture.c:143)
==22639==    by 0x261E44: main (smbtorture.c:665)

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

diff --git a/source4/torture/basic/aliases.c b/source4/torture/basic/aliases.c
index 40a22a79cafefcc35eda015d9f5019f23946120a..3e829ac15c511038eee2c9e2701906250ee11328 100644 (file)
--- a/source4/torture/basic/aliases.c
+++ b/source4/torture/basic/aliases.c
@@ -192,6 +192,7 @@ static bool findfirst_aliases(struct torture_context *tctx, struct smbcli_state
        const char *fname = "\\findfirst_aliases.txt";
        int fnum;
 
+       ZERO_STRUCT(t2);
        t2.in.max_param = 16;
        t2.in.max_data = UINT16_MAX;
        t2.in.max_setup = 0;
@@ -201,7 +202,6 @@ static bool findfirst_aliases(struct torture_context *tctx, struct smbcli_state
        t2.in.setup = &setup;
        t2.in.params = data_blob_talloc_zero(tctx, 12);
        t2.in.data = data_blob(NULL, 0);
-       ZERO_STRUCT(t2.out);
 
        smbcli_unlink(cli->tree, fname);
        fnum = create_complex_file(cli, cli, fname);