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| author | Steven Rostedt (Google) <[email protected]> | 2023-09-06 22:47:13 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <[email protected]> | 2023-09-07 16:38:53 -0400 |
| commit | 7d660c9b2bc95107f90a9f4c4759be85309a6550 (patch) | |
| tree | 7464736c2035613262ca7055990daa8384baf5d0 /lib/test_fortify/write_overflow-strncpy-src.c | |
| parent | f5ca233e2e66dc1c249bf07eefa37e34a6c9346a (diff) | |
tracing: Have tracing_max_latency inc the trace array ref count
The tracing_max_latency file points to the trace_array max_latency field.
For an instance, if the file is opened and the instance is deleted,
reading or writing to the file will cause a use after free.
Up the ref count of the trace_array when tracing_max_latency is opened.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lore.kernel.org/all/[email protected]/
Cc: [email protected]
Cc: Masami Hiramatsu <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Zheng Yejian <[email protected]>
Fixes: 8530dec63e7b4 ("tracing: Add tracing_check_open_get_tr()")
Tested-by: Linux Kernel Functional Testing <[email protected]>
Tested-by: Naresh Kamboju <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
Diffstat (limited to 'lib/test_fortify/write_overflow-strncpy-src.c')
0 files changed, 0 insertions, 0 deletions