Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 6.1 14/26] devres: Use kmalloc_size_roundup() to match ksize() usage | Date | Fri, 23 Dec 2022 20:29:18 -0500 |
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From: Kees Cook <keescook@chromium.org>
[ Upstream commit 6fcd7e702d3d91cc2c3194acffd7d67b2c10b81f ]
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> Link: https://lore.kernel.org/r/20221018090406.never.856-kees@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/base/devres.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 4ab2b50ee38f..c0e100074aa3 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; } -- 2.35.1
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