* [PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr
@ 2026-06-11 21:55 Thorsten Blum
2026-06-16 22:18 ` Andi Shyti
0 siblings, 1 reply; 2+ messages in thread
From: Thorsten Blum @ 2026-06-11 21:55 UTC (permalink / raw)
To: Tomi Valkeinen, Luca Ceresoli, Kees Cook, Gustavo A. R. Silva
Cc: Thorsten Blum, linux-i2c, linux-kernel, linux-hardening
Add the __counted_by_ptr() compiler attribute to ->aliases to improve
bounds checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
include/linux/i2c-atr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/i2c-atr.h b/include/linux/i2c-atr.h
index 2bb54dc87c8e..b52a7b9ec536 100644
--- a/include/linux/i2c-atr.h
+++ b/include/linux/i2c-atr.h
@@ -71,7 +71,7 @@ struct i2c_atr_adap_desc {
struct device *parent;
struct fwnode_handle *bus_handle;
size_t num_aliases;
- u16 *aliases;
+ u16 *aliases __counted_by_ptr(num_aliases);
};
/**
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr
2026-06-11 21:55 [PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr Thorsten Blum
@ 2026-06-16 22:18 ` Andi Shyti
0 siblings, 0 replies; 2+ messages in thread
From: Andi Shyti @ 2026-06-16 22:18 UTC (permalink / raw)
To: Thorsten Blum
Cc: Tomi Valkeinen, Luca Ceresoli, Kees Cook, Gustavo A. R. Silva,
linux-i2c, linux-kernel, linux-hardening
Hi Thorsten,
On Thu, Jun 11, 2026 at 11:55:02PM +0200, Thorsten Blum wrote:
> Add the __counted_by_ptr() compiler attribute to ->aliases to improve
> bounds checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
>
> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
> Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
merged in i2c/i2c-host.
Thanks,
Andi
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2026-06-11 21:55 [PATCH RESEND] i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr Thorsten Blum
2026-06-16 22:18 ` Andi Shyti
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