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Date: Wed, 28 Dec 2022 15:41:54 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: stable@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, patches@...ts.linux.dev, Rasesh Mody <rmody@...vell.com>, GR-Linux-NIC-Dev@...vell.com, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org, Kees Cook <keescook@...omium.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 6.1 0975/1146] bnx2: Use kmalloc_size_roundup() to match ksize() usage From: Kees Cook <keescook@...omium.org> [ Upstream commit d6dd508080a3cdc0ab34ebf66c3734f2dff907ad ] Round up allocations with kmalloc_size_roundup() so that build_skb()'s use of ksize() is always accurate and no special handling of the memory is needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE. Cc: Rasesh Mody <rmody@...vell.com> Cc: GR-Linux-NIC-Dev@...vell.com Cc: "David S. Miller" <davem@...emloft.net> Cc: Eric Dumazet <edumazet@...gle.com> Cc: Jakub Kicinski <kuba@...nel.org> Cc: Paolo Abeni <pabeni@...hat.com> Cc: netdev@...r.kernel.org Signed-off-by: Kees Cook <keescook@...omium.org> Link: https://lore.kernel.org/r/20221022021004.gonna.489-kees@kernel.org Signed-off-by: Paolo Abeni <pabeni@...hat.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/ethernet/broadcom/bnx2.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index fec57f1982c8..dbe310144780 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -5415,8 +5415,9 @@ bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size) bp->rx_buf_use_size = rx_size; /* hw alignment + build_skb() overhead*/ - bp->rx_buf_size = SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) + - NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + bp->rx_buf_size = kmalloc_size_roundup( + SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) + + NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))); bp->rx_jumbo_thresh = rx_size - BNX2_RX_OFFSET; bp->rx_ring_size = size; bp->rx_max_ring = bnx2_find_max_ring(size, BNX2_MAX_RX_RINGS); -- 2.35.1
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