]> git.karo-electronics.de Git - linux-beck.git/commit
tracing: Verify target file before registering a uprobe event
authorJovi Zhang <bookjovi@gmail.com>
Wed, 18 Jul 2012 10:16:44 +0000 (18:16 +0800)
committerSteven Rostedt <rostedt@goodmis.org>
Mon, 21 Jan 2013 18:22:31 +0000 (13:22 -0500)
commitd24d7dbf3cc49b00a152e55e24f0eeb173c7a971
tree9438ef9d1b6123f5d0b5f66e99a1f3774bce274f
parentd8a0349c0cea477322c66ea9362f10c62fad5f62
tracing: Verify target file before registering a uprobe event

Without this patch, we can register a uprobe event for a directory.
Enabling such a uprobe event would anyway fail.

Example:
$ echo 'p /bin:0x4245c0' > /sys/kernel/debug/tracing/uprobe_events

However dirctories cannot be valid targets for uprobe.
Hence verify if the target is a regular file during the probe
registration.

Link: http://lkml.kernel.org/r/20130103004212.690763002@goodmis.org
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Jovi Zhang <bookjovi@gmail.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ cleaned up whitespace and removed redundant IS_DIR() check ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
kernel/trace/trace_uprobe.c