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authorKees Cook <keescook@chromium.org>2023-09-22 20:53:35 +0300
committerTakashi Sakamoto <o-takashi@sakamocchi.jp>2023-11-05 15:15:17 +0300
commitc12d7aa7ffa4c61443241fbc1ee405acf4aa17de (patch)
treed5b3d9545cdbdc1bee20c2a96331d9d40b79b91a /drivers
parentffc253263a1375a65fa6c9f62a893e9767fbebfa (diff)
downloadlinux-c12d7aa7ffa4c61443241fbc1ee405acf4aa17de.tar.xz
firewire: Annotate struct fw_node 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 fw_node. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: linux1394-devel@lists.sourceforge.net Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20230922175334.work.335-kees@kernel.org Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/firewire/core.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index 2a05f411328f..95c10f3d2282 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -191,7 +191,7 @@ struct fw_node {
/* Upper layer specific data. */
void *data;
- struct fw_node *ports[];
+ struct fw_node *ports[] __counted_by(port_count);
};
static inline struct fw_node *fw_node_get(struct fw_node *node)