diff options
| author | Marcin Nowakowski <marcin.nowakowski@imgtec.com> | 2017-06-08 15:20:32 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2017-09-15 18:30:06 +0100 |
| commit | d13206fb3c79c2378a51dc131577d253b1782e96 (patch) | |
| tree | 47dadde3b908c14ef6b81a29b5c0e1d9960cf237 /include/linux | |
| parent | f44699a847f0b1bf28938e9d3dd753e1bb6d11ca (diff) | |
MIPS: kprobes: flush_insn_slot should flush only if probe initialised
commit 698b851073ddf5a894910d63ca04605e0473414e upstream.
When ftrace is used with kprobes, it is possible for a kprobe to contain
an invalid location (ie. only initialised to 0 and not to a specific
location in the code). Trying to perform a cache flush on such location
leads to a crash r4k_flush_icache_range().
Fixes: c1bf207d6ee1 ("MIPS: kprobe: Add support.")
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16296/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions