Thomas Weißschuh 447e56023f selftests/nolibc: avoid buffer underrun in space printing ... If the test description is longer than the status alignment the parameter 'n' to putcharn() would lead to a signed underflow that then gets converted to a very large unsigned value. This in turn leads out-of-bound writes in memset() crashing the application. The failure case of EXPECT_PTRER() used in "mmap_bad" exhibits this exact behavior. Fixes: 29f5540be3 ("selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Willy Tarreau <w@1wt.eu>		2023-08-23 05:17:07 +02:00
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.gitignore	tools/nolibc: add libc-test binary	2023-06-09 11:33:05 -07:00
Makefile	selftests/nolibc: allow test -include /path/to/nolibc.h	2023-08-23 04:40:22 +02:00
nolibc-test.c	selftests/nolibc: avoid buffer underrun in space printing	2023-08-23 05:17:07 +02:00