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| author |   Masami Hiramatsu <mhiramat@kernel.org> | 2021-11-13 01:02:08 +0900 |
|---|---|---|
| committer |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-11-12 15:48:46 -0500 |
| commit | 63f84ae6b82bb4dff672f76f30c6fd7b9d3766bc (patch) | |
| tree | fb646bd1bb322d521f83f081f635e9b4fac7747c /drivers/fpga/fpga-mgr.c | |
| parent | tracing/osnoise: Make osnoise_instances static (diff) | |
| download | linux-dev-63f84ae6b82bb4dff672f76f30c6fd7b9d3766bc.tar.xz linux-dev-63f84ae6b82bb4dff672f76f30c6fd7b9d3766bc.zip | |
tracing/histogram: Do not copy the fixed-size char array field over the field size
Do not copy the fixed-size char array field of the events over
the field size. The histogram treats char array as a string and
there are 2 types of char array in the event, fixed-size and
dynamic string. The dynamic string (__data_loc) field must be
null terminated, but the fixed-size char array field may not
be null terminated (not a string, but just a data).
In that case, histogram can copy the data after the field.
This uses the original field size for fixed-size char array
field to restrict the histogram not to access over the original
field size.
Link: https://lkml.kernel.org/r/163673292822.195747.3696966210526410250.stgit@devnote2
Fixes: 02205a6752f2 (tracing: Add support for 'field variables')
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions