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| author |  Steven Rostedt (VMware) <rostedt@goodmis.org>
| 2019-08-30 16:30:01 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org>
| 2019-08-30 16:30:01 -0400 |
| commit | 372e0d01da71c84dcecf7028598a33813b0d5256 (patch) | |
| tree | 3aa1bf6e2a344b91cc5078abc4fa982f479e914a /kernel/iomem.c | |
| parent | ftrace: Fix NULL pointer dereference in t_probe_next() (diff) | |
| download | linux-372e0d01da71c84dcecf7028598a33813b0d5256.tar.gz linux-372e0d01da71c84dcecf7028598a33813b0d5256.tar.bz2 linux-372e0d01da71c84dcecf7028598a33813b0d5256.zip | |
ftrace: Check for empty hash and comment the race with registering probes
The race between adding a function probe and reading the probes that exist
is very subtle. It needs a comment. Also, the issue can also happen if the
probe has has the EMPTY_HASH as its func_hash.
Cc: stable@vger.kernel.org
Fixes: 7b60f3d876156 ("ftrace: Dynamically create the probe ftrace_ops for the trace_array")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/iomem.c')
0 files changed, 0 insertions, 0 deletions