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authorKees Cook <keescook@chromium.org>2023-09-22 19:52:50 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2023-09-27 12:13:18 +0200
commit45492b13453f9862abff6f9d7af5e8116849a9c9 (patch)
tree9cf43a9df100486ee17b543a8708e614b37f833d /drivers/memstick
parentmmc: starfive: Change tuning implementation (diff)
downloadlinux-45492b13453f9862abff6f9d7af5e8116849a9c9.tar.xz
linux-45492b13453f9862abff6f9d7af5e8116849a9c9.zip
memstick: jmb38x_ms: Annotate struct jmb38x_ms 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 jmb38x_ms. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Alex Dubov <oakad@yahoo.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Tom Rix <trix@redhat.com> Cc: Len Baker <len.baker@gmx.com> Cc: Dan Carpenter <error27@gmail.com> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: linux-mmc@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230922175249.work.593-kees@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/memstick')
-rw-r--r--drivers/memstick/host/jmb38x_ms.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c
index 21cb2a786058..e77eb8b0eb12 100644
--- a/drivers/memstick/host/jmb38x_ms.c
+++ b/drivers/memstick/host/jmb38x_ms.c
@@ -66,7 +66,7 @@ struct jmb38x_ms_host {
struct jmb38x_ms {
struct pci_dev *pdev;
int host_cnt;
- struct memstick_host *hosts[];
+ struct memstick_host *hosts[] __counted_by(host_cnt);
};
#define BLOCK_COUNT_MASK 0xffff0000