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Heiner Kallweit ae59ec969c net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect

commit e88fbc30dd upstream.

After the call to phy_disconnect() netdev->phydev is reset to NULL.
So fixed_phy_unregister() would be called with a NULL pointer as argument.
Therefore cache the phy_device before this call.

Fixes: e24a6c8746 ("net: ftgmac100: Get link speed and duplex for NC-SI")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Dawid Osuchowski <dawid.osuchowski@linux.intel.com>
Link: https://patch.msgid.link/2b80a77a-06db-4dd7-85dc-3a8e0de55a1d@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-08-20 18:30:13 +02:00

ftgmac100.c

net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect

2025-08-20 18:30:13 +02:00

ftgmac100.h

net: ftgmac100: Enable TX interrupt to avoid TX timeout

2024-09-10 12:50:07 +02:00

ftmac100.c

net: annotate writes on dev->mtu from ndo_change_mtu()

2024-05-07 16:19:14 -07:00

ftmac100.h

net: ftmac100: fix endianness-related issues from 'sparse'