Beau Belgrave 0489c2b2c3 tracing/user_events: Ensure write index cannot be negative ... [ Upstream commit cd98c93286 ] The write index indicates which event the data is for and accesses a per-file array. The index is passed by user processes during write() calls as the first 4 bytes. Ensure that it cannot be negative by returning -EINVAL to prevent out of bounds accesses. Update ftrace self-test to ensure this occurs properly. Link: https://lkml.kernel.org/r/20230425225107.8525-2-beaub@linux.microsoft.com Fixes: 7f5a08c79d ("user_events: Add minimal support for trace_event into ftrace") Reported-by: Doug Cook <dcook@linux.microsoft.com> Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-05-11 23:03:32 +09:00
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Makefile	selftests: user_events: Fix incorrect kernel headers search path	2023-03-10 09:34:17 +01:00
dyn_test.c	…
ftrace_test.c	tracing/user_events: Ensure write index cannot be negative	2023-05-11 23:03:32 +09:00
perf_test.c	tracing/user_events: Use bits vs bytes for enabled status page data	2022-09-29 10:17:37 -04:00
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