[PATCH bpf-next v2 0/3] bpf/verifier: Use kmalloc_size_roundup() to match ksize() usage

From: Kees Cook
Date: Fri Oct 28 2022 - 23:09:27 EST


v2:
- split up patch into logical changes
- simplify copy_array, which can use ksize() directly
v1: https://lore.kernel.org/all/20221018090550.never.834-kees@xxxxxxxxxx/

Hi,

Here's the next version of removing the BPF verifier's dependency on the
side-effects of ksize(), so we can remove the special handling needed
for KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE in ksize().

Thanks,

-Kees

Kees Cook (3):
bpf/verifier: Fix potential memory leak in array reallocation
bpf/verifier: Use kmalloc_size_roundup() to match ksize() usage
bpf/verifier: Take advantage of full allocation sizes

kernel/bpf/verifier.c | 44 ++++++++++++++++++++++++++++---------------
1 file changed, 29 insertions(+), 15 deletions(-)

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2.34.1