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| author | Masami Ichikawa <[email protected]> | 2020-01-16 13:12:36 +0000 |
|---|---|---|
| committer | Steven Rostedt (VMware) <[email protected]> | 2020-01-20 21:18:14 +0000 |
| commit | bf24daac8f2bd5b8affaec03c2be1d20bcdd6837 (patch) | |
| tree | 16b6d0565a085fced05d766e68c2fc503fc58447 /lib/strncpy_from_user.c | |
| parent | tracing: Fix histogram code when expression has same var as value (diff) | |
| download | kernel-bf24daac8f2bd5b8affaec03c2be1d20bcdd6837.tar.gz kernel-bf24daac8f2bd5b8affaec03c2be1d20bcdd6837.zip | |
tracing: Do not set trace clock if tracefs lockdown is in effect
When trace_clock option is not set and unstable clcok detected,
tracing_set_default_clock() sets trace_clock(ThinkPad A285 is one of
case). In that case, if lockdown is in effect, null pointer
dereference error happens in ring_buffer_set_clock().
Link: http://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Fixes: 17911ff38aa58 ("tracing: Add locked_down checks to the open calls of files created for tracefs")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1788488
Signed-off-by: Masami Ichikawa <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Diffstat (limited to 'lib/strncpy_from_user.c')
0 files changed, 0 insertions, 0 deletions