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bnx2x: fix potential memory leak in bnx2x_tpa_stop()

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bnx2x_tpa_stop() allocates a memory chunk from new_data with
bnx2x_frag_alloc(). The new_data should be freed when gets some error.
But when "pad + len > fp->rx_buf_size" is true, bnx2x_tpa_stop() returns
without releasing the new_data, which will lead to a memory leak.

We should free the new_data with bnx2x_frag_free() when "pad + len >
fp->rx_buf_size" is true.

Fixes: 07b0f00964 ("bnx2x: fix possible panic under memory stress")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jianglei Nie 2022-09-30 14:28:43 +08:00 committed by David S. Miller
parent cb4b12071a
commit b43f9acbb8
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
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@ -789,6 +789,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
BNX2X_ERR("skb_put is about to fail... pad %d len %d rx_buf_size %d\n",
pad, len, fp->rx_buf_size);
bnx2x_panic();
bnx2x_frag_free(fp, new_data);
return;
}
#endif