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authorNamhyung Kim2021-02-24 16:14:38 +0900
committerArnaldo Carvalho de Melo2021-03-06 16:54:31 -0300
commitbd57a9f33abc0adede5bafa06b2f1af3de03190d (patch)
treebd0e8106719620bc2ecf9ea084e8b4feafe77d8f /Documentation/admin-guide/mm/soft-dirty.rst
parent513068f2b1fe39a60d89f6f8afbdd79c2534889c (diff)
perf daemon: Fix compile error with Asan
I'm seeing a build failure when build with address sanitizer. It seems we could write to the name[100] if the var is longer. $ make EXTRA_CFLAGS=-fsanitize=address ... CC builtin-daemon.o In function ‘get_session_name’, inlined from ‘session_config’ at builtin-daemon.c:164:6, inlined from ‘server_config’ at builtin-daemon.c:223:10: builtin-daemon.c:155:11: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=] 155 | *session = 0; | ~~~~~~~~~^~~ builtin-daemon.c: In function ‘server_config’: builtin-daemon.c:162:7: note: at offset 100 to object ‘name’ with size 100 declared here 162 | char name[100]; | ^~~~ Fixes: c0666261ff38 ("perf daemon: Add config file support") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210224071438.686677-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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