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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id t2-20020aa79462000000b0053639773ad8sm6832080pfq.119.2022.09.23.13.28.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Sep 2022 13:28:25 -0700 (PDT) From: Kees Cook To: Vlastimil Babka Cc: Kees Cook , "Ruhl, Michael J" , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Greg Kroah-Hartman , Nick Desaulniers , Alex Elder , Josef Bacik , David Sterba , Sumit Semwal , =?UTF-8?q?Christian=20K=C3=B6nig?= , Jesse Brandeburg , Daniel Micay , Yonghong Song , Marco Elver , Miguel Ojeda , linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-fsdevel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, dev@openvswitch.org, x86@kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: [PATCH v2 00/16] slab: Introduce kmalloc_size_roundup() Date: Fri, 23 Sep 2022 13:28:06 -0700 Message-Id: <20220923202822.2667581-1-keescook@chromium.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Developer-Signature: v=1; a=openpgp-sha256; l=3290; h=from:subject; bh=6t8CTnxnusXxlhLGNxOhRs5l2789SVRbReUcmZgsVm4=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBjLhbjKWBYYij171TDp3TdZmoZXSs7dXXkRN1eGod1 9RjCiP+JAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYy4W4wAKCRCJcvTf3G3AJnMrD/ 9AYEfZWXDOv2krdFVvtjQthCuAcgKZVOWzfaX/ZBtQRlYjuppFlG2ED1IEpuIhD0Ir80c5xPT0sC6o NsiMZw3mMRacDRN1JKTgZIg3s63bBHGPVJzr9Ms7LrhbLULxcInTn8Kmx1m+j/SOpIaVQbOz2eMMkZ hq15TaNyE7pBLM9SdfCtAyTs9eRAtVTuYrwZqvgSDjZ61SXuxi2k37cjMCmPHUTq/sIlGgP+BbmYVU h4TXPtyeel8GsxvMTh+ZJLwcMIm74VL8RdFIlqhUbTT1t2IHy48AtxwQQhaVX0FoQuaeRVIHGZ6W3H G8nJ1wcWlIzz3bYBH022dj7eQTsTkVCk6mdVQzd0tBA9yKVcNDoLBacX1DCakWCtJtW9hB3nI7wGSo dddWD44+KFc7CqbVkUJUBWKf0KFDD+RBxraKtYUvKQrLMx0oq545fsuTe+Wx85iePymCMknPsuIu7T RqpkKnn423yOsp7n6oWGz2jCxpOIGyTubVpWH5O/cuXKNmrDFZz8jsL8Js/2Of2DYZ5nq9YGQsiXeg 2S+DEM7sXnFtd9YfGznNOceTXn0B6askh1+E8cTpDv624NJQscze/0hYjyKnnV10f4gf0FRf/X6SzA azwQEVgyfXgzY00yn92DXcmjocb95A4MMqEAG/m2SLnjQl6aJMp6R561rcig== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org 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