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Message-Id: <20220923202822.2667581-1-keescook@chromium.org> Date: Fri, 23 Sep 2022 13:28:06 -0700 From: Kees Cook <keescook@...omium.org> To: Vlastimil Babka <vbabka@...e.cz> Cc: Kees Cook <keescook@...omium.org>, "Ruhl, Michael J" <michael.j.ruhl@...el.com>, Hyeonggon Yoo <42.hyeyoo@...il.com>, Christoph Lameter <cl@...ux.com>, Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>, Joonsoo Kim <iamjoonsoo.kim@....com>, Andrew Morton <akpm@...ux-foundation.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Alex Elder <elder@...nel.org>, Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>, Sumit Semwal <sumit.semwal@...aro.org>, Christian König <christian.koenig@....com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Daniel Micay <danielmicay@...il.com>, Yonghong Song <yhs@...com>, Marco Elver <elver@...gle.com>, Miguel Ojeda <ojeda@...nel.org>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, netdev@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org, linux-fsdevel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org, dev@...nvswitch.org, x86@...nel.org, llvm@...ts.linux.dev, linux-hardening@...r.kernel.org Subject: [PATCH v2 00/16] slab: Introduce kmalloc_size_roundup() Hi, The main details on this series are in patch #2's commit log. It's long, so I won't repeat it again here for the v2. As before, I've tried to trim the CC list. v2: - _keep_ ksize(), but remove instrumentation (makes patch series smaller) - reorganized skbuff logic to avoid yet more copy/paste code - added a WARN to a separate skbuff ksize usage - add new refactorings: bpf, openvswitch, devres, mempool, kasan - dropped "independent" patches: iwlwifi, x86/microcode/AMD (sent separately) v1: https://lore.kernel.org/lkml/20220922031013.2150682-1-keescook@chromium.org Notes: Originally when I was going to entirely remove ksize(), there were a handful for refactorings that just needed to do ksize -> __ksize. In the end, it was cleaner to actually leave ksize() as a real function, just without the kasan instrumentation. I wonder, however, if it should be converted into a static inline now? I dropped Jakub's Ack because I refactored that code a bunch more. The 2 patches that didn't need to call kmalloc_size_roundup() don't need to be part of this series. (One is already in -next, actually.) I'd like to land at least the first two patches in the coming v6.1 merge window so that the per-subsystem patches can be sent to their various subsystems directly. Vlastimil, what you think? Thanks! -Kees Kees Cook (16): slab: Remove __malloc attribute from realloc functions slab: Introduce kmalloc_size_roundup() skbuff: Proactively round up to kmalloc bucket size skbuff: Phase out ksize() fallback for frag_size net: ipa: Proactively round up to kmalloc bucket size igb: Proactively round up to kmalloc bucket size btrfs: send: Proactively round up to kmalloc bucket size dma-buf: Proactively round up to kmalloc bucket size coredump: Proactively round up to kmalloc bucket size openvswitch: Use kmalloc_size_roundup() to match ksize() usage bpf: Use kmalloc_size_roundup() to match ksize() usage devres: Use kmalloc_size_roundup() to match ksize() usage mempool: Use kmalloc_size_roundup() to match ksize() usage kasan: Remove ksize()-related tests mm: Make ksize() a reporting-only function slab: Restore __alloc_size attribute to __kmalloc_track_caller drivers/base/devres.c | 3 + drivers/dma-buf/dma-resv.c | 9 ++- drivers/net/ethernet/intel/igb/igb_main.c | 5 +- drivers/net/ipa/gsi_trans.c | 7 +- fs/btrfs/send.c | 11 +-- fs/coredump.c | 7 +- include/linux/compiler_types.h | 13 ++-- include/linux/skbuff.h | 5 +- include/linux/slab.h | 46 +++++++++++-- kernel/bpf/verifier.c | 49 +++++++++----- lib/test_kasan.c | 42 ------------ mm/kasan/shadow.c | 4 +- mm/mempool.c | 2 +- mm/slab.c | 9 ++- mm/slab_common.c | 62 ++++++++++------- net/core/skbuff.c | 82 ++++++++++++----------- net/openvswitch/flow_netlink.c | 2 +- 17 files changed, 192 insertions(+), 166 deletions(-) -- 2.34.1
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