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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 20:50:15 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2023-09-26 00:33:12 +0300 |
| commit | 49f33846efc079eb94b044bf897e90909fd3aa11 (patch) | |
| tree | 5a92dcd09ecdc1640517e78103880722bbacd014 /drivers/i3c | |
| parent | 014c9a0e6f9ff573099051e1e2ff6efc3470d02d (diff) | |
| download | linux-49f33846efc079eb94b044bf897e90909fd3aa11.tar.xz | |
i3c: master: cdns: Annotate struct cdns_i3c_xfer with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct cdns_i3c_xfer.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: "Przemysław Gaj" <pgaj@cadence.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-i3c@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175014.work.637-kees@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/i3c')
| -rw-r--r-- | drivers/i3c/master/i3c-master-cdns.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c index 8f1fda3c7ac5..bcbe8f914149 100644 --- a/drivers/i3c/master/i3c-master-cdns.c +++ b/drivers/i3c/master/i3c-master-cdns.c @@ -387,7 +387,7 @@ struct cdns_i3c_xfer { struct completion comp; int ret; unsigned int ncmds; - struct cdns_i3c_cmd cmds[]; + struct cdns_i3c_cmd cmds[] __counted_by(ncmds); }; struct cdns_i3c_data { |