Messages in this thread Patch in this message |  | | From | Kees Cook <> | Subject | [PATCH v2 12/16] devres: Use kmalloc_size_roundup() to match ksize() usage | Date | Fri, 23 Sep 2022 13:28:18 -0700 |
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Round up allocations with kmalloc_size_roundup() so that devres's use of ksize() is always accurate and no special handling of the memory is needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> --- drivers/base/devres.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 864d0b3f566e..7db20ce7ea8a 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -101,6 +101,9 @@ static bool check_dr_size(size_t size, size_t *tot_size) size, tot_size))) return false; + /* Actually allocate the full kmalloc bucket size. */ + *tot_size = kmalloc_size_roundup(*tot_size); + return true; } -- 2.34.1
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