Andrey Zhizhikin bad8bb7a59 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 08:34:45 +01:00
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Build	tools lib api fs: Remove debugfs, tracefs and findfs objects	2015-09-14 12:50:15 -03:00
fs.c	tools lib api fs: Fix gcc9 stringop-truncation compilation error	2020-02-24 08:34:45 +01:00
fs.h	tools lib api fs: Add sysfs__read_xll function	2018-02-16 10:09:23 -03:00
tracing_path.c	perf tools: Fix tracing_path_mount proper path	2018-10-16 12:27:46 -03:00
tracing_path.h	tools lib api fs tracing_path: Make tracing_events_path private	2018-05-17 14:51:23 -03:00