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Message-Id: <20230811201512.461657-4-thinhtr@linux.vnet.ibm.com> Date: Fri, 11 Aug 2023 15:15:11 -0500 From: Thinh Tran <thinhtr@...ux.vnet.ibm.com> To: kuba@...nel.org Cc: aelior@...vell.com, davem@...emloft.net, edumazet@...gle.com, manishc@...vell.com, netdev@...r.kernel.org, pabeni@...hat.com, skalluru@...vell.com, VENKATA.SAI.DUGGI@....com, Thinh Tran <thinhtr@...ux.vnet.ibm.com> Subject: [Patch v5 3/4] bnx2x: Prevent access to a freed page in page_pool Signed-off-by: Thinh Tran <thinhtr@...ux.vnet.ibm.com> --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 0ad879a5af95..ca3ab06206b3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -1016,6 +1016,9 @@ static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, { int i; + if (!fp->page_pool.page) + return; + if (fp->mode == TPA_MODE_DISABLED) return; -- 2.27.0
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