Re: [PATCH net] net: phy: micrel: Fix potential null pointer dereference
From: Andrew Lunn <andrew@lunn.ch>
Date: 2024-03-30 16:53:08
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On Fri, Mar 29, 2024 at 09:16:31AM +0300, Aleksandr Mishin wrote:
In lan8814_get_sig_rx() and lan8814_get_sig_tx() ptp_parse_header() may
return NULL as ptp_header due to abnormal packet type or corrupted packet.
Fix this bug by adding ptp_header check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: ece19502834d ("net: phy: micrel: 1588 support for LAN8814 phy")
Signed-off-by: Aleksandr Mishin <redacted>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew