brcmfmac: Fix use after free in brcmf_sdio_readframes()

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[ Upstream commit 216b44000a ]

The brcmu_pkt_buf_free_skb() function frees "pkt" so it leads to a
static checker warning:

    drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:1974 brcmf_sdio_readframes()
    error: dereferencing freed memory 'pkt'

It looks like there was supposed to be a continue after we free "pkt".

Fixes: 4754fceeb9 ("brcmfmac: streamline SDIO read frame routine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Dan Carpenter 2019-12-03 12:58:55 +03:00 • committed by Greg Kroah-Hartman

parent 9f969d4a56

commit fa0c8172a9

1 changed files with 1 additions and 0 deletions

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drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c

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