Andrey Zhizhikin e44b48f5bb tools lib api fs: Fix gcc9 stringop-truncation compilation error ... [ Upstream commit 6794200fa3 ] GCC9 introduced string hardening mechanisms, which exhibits the error during fs api compilation: error: '__builtin_strncpy' specified bound 4096 equals destination size [-Werror=stringop-truncation] This comes when the length of copy passed to strncpy is is equal to destination size, which could potentially lead to buffer overflow. There is a need to mitigate this potential issue by limiting the size of destination by 1 and explicitly terminate the destination with NULL. Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andriin@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: bpf@vger.kernel.org Cc: netdev@vger.kernel.org Link: http://lore.kernel.org/lkml/20191211080109.18765-1-andrey.zhizhikin@leica-geosystems.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-24 08:36:43 +01:00
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api	tools lib api fs: Fix gcc9 stringop-truncation compilation error	2020-02-24 08:36:43 +01:00
bpf	libbpf: Fix realloc usage in bpf_core_find_cands	2020-02-11 04:35:29 -08:00
lockdep	lockdep/lib/tests: Test dynamic key registration	2019-02-28 07:55:48 +01:00
subcmd	libsubcmd: Use -O0 with DEBUG=1	2019-12-31 16:44:56 +01:00
symbol	tools perf: Move from sane_ctype.h obtained from git to the Linux's original	2019-06-25 21:02:47 -03:00
traceevent	tools lib traceevent: Fix memory leakage in filter_event	2020-02-05 21:22:43 +00:00
argv_split.c	tools lib: Move argv_{split,free} from tools/perf/util/	2019-07-01 22:50:40 -03:00
bitmap.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230	2019-06-19 17:09:06 +02:00
ctype.c	tools perf: Move from sane_ctype.h obtained from git to the Linux's original	2019-06-25 21:02:47 -03:00
find_bit.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
hweight.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rbtree.c	rbtree: avoid generating code twice for the cached versions (tools copy)	2019-09-25 17:51:39 -07:00
str_error_r.c	objtool, perf: Fix GCC 8 -Wrestrict error	2018-03-19 13:51:54 -03:00
string.c	tools lib: Fix builds when glibc contains strlcpy()	2020-02-05 21:22:40 +00:00
vsprintf.c	perf script: Pad DSO name for --call-trace	2019-05-28 18:37:44 -03:00
zalloc.c	tools lib: Adopt zalloc()/zfree() from tools/perf	2019-07-09 10:13:26 -03:00