tracing/uprobe_event: Fix strncpy corner case

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commit 50268a3d26 upstream.

Fix string fetch function to terminate with NUL.
It is OK to drop the rest of string.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: security@kernel.org
Cc: 范龙飞 <long7573@126.com>
Fixes: 5baaa59ef0 ("tracing/probes: Implement 'memory' fetch method for uprobes")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Masami Hiramatsu 2018-04-10 21:20:08 +09:00 • committed by Greg Kroah-Hartman

parent bb0b090d83

commit bd05324cdd

1 changed files with 2 additions and 0 deletions

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kernel/trace/trace_uprobe.c

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