net: dpaa: Pad packets to ETH_ZLEN

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[ Upstream commit cbd7ec0834 ]

When sending packets under 60 bytes, up to three bytes of the buffer
following the data may be leaked. Avoid this by extending all packets to
ETH_ZLEN, ensuring nothing is leaked in the padding. This bug can be
reproduced by running

	$ ping -s 11 destination

Fixes: 9ad1a37493 ("dpaa_eth: add support for DPAA Ethernet")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240910143144.1439910-1-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Sean Anderson 2024-09-10 10:31:44 -04:00 • committed by Greg Kroah-Hartman

parent 33c2258bf8

commit f43190e332

1 changed files with 8 additions and 1 deletions

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drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

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