git: c88c1f23a898 - main - Allow ssp_test:read to pass more reliably

[Alex Richardson]

The branch main has been updated by arichardson:

URL: https://cgit.FreeBSD.org/src/commit/?id=c88c1f23a8989b881a5ca51223289ddb4ce74277

commit c88c1f23a8989b881a5ca51223289ddb4ce74277
Author:     Alex Richardson <arichardson at FreeBSD.org>
AuthorDate: 2021-03-01 19:50:38 +0000
Commit:     Alex Richardson <arichardson at FreeBSD.org>
CommitDate: 2021-03-01 19:56:05 +0000

    Allow ssp_test:read to pass more reliably
    
    It appears that the stackframe layout can be slightly different depending on
    compiler and target architecture. For example, when using CHERI LLVM for RISC-V
    we can actually overflow the buffer by up to 8 bytes without SSP detecting it.
    Fix this by increasing the overflow to 15 bytes.
    
    Reviewed By:    ngie, emaste
    Differential Revision: https://reviews.freebsd.org/D28997
---
 contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh b/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh
index 7b963d18e3f7..b9d07b1804b1 100755
--- a/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh
+++ b/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh
@@ -390,7 +390,7 @@ read_body()
 	if true; then
 	MAX_PATH=$(getconf _XOPEN_PATH_MAX) || atf_fail "getconf failed"
 	h_pass "$prog $MAX_PATH" "echo foo |"
-	h_fail "$prog $(( $MAX_PATH + 3 ))" "echo bar |"
+	h_fail "$prog $(( $MAX_PATH + 15 ))" "echo bar |"
 	else
 	# End FreeBSD
 	h_pass "$prog 1024" "echo foo |"