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| author | Masami Hiramatsu <[email protected]> | 2020-12-03 04:50:37 +0000 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-12-06 08:58:13 +0000 |
| commit | 4e9a5ae8df5b3365183150f6df49e49dece80d8c (patch) | |
| tree | 3f10655b516680582aceaaae84846f4e53465d26 /tools/perf/python/tracepoint.py | |
| parent | x86/platform/uv: Fix UV4 hub revision adjustment (diff) | |
| download | kernel-4e9a5ae8df5b3365183150f6df49e49dece80d8c.tar.gz kernel-4e9a5ae8df5b3365183150f6df49e49dece80d8c.zip | |
x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes
Since insn.prefixes.nbytes can be bigger than the size of
insn.prefixes.bytes[] when a prefix is repeated, the proper check must
be
insn.prefixes.bytes[i] != 0 and i < 4
instead of using insn.prefixes.nbytes.
Introduce a for_each_insn_prefix() macro for this purpose. Debugged by
Kees Cook <[email protected]>.
[ bp: Massage commit message, sync with the respective header in tools/
and drop "we". ]
Fixes: 2b1444983508 ("uprobes, mm, x86: Add the ability to install and remove uprobes breakpoints")
Reported-by: [email protected]
Signed-off-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Srikar Dronamraju <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/160697103739.3146288.7437620795200799020.stgit@devnote2
Diffstat (limited to 'tools/perf/python/tracepoint.py')
0 files changed, 0 insertions, 0 deletions