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| author |   Srujana Challa <schalla@marvell.com> | 2026-03-26 19:53:44 +0530 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2026-04-01 19:47:44 -0700 |
| commit | b4e5f04c58a29c499faa85d12952ca9a4faf1cb9 (patch) | |
| tree | f55984db1d7e5a726b25fd45895af57cf8b1a63c /rust/kernel/ssh:/git@git.zx2c4.com | |
| parent | net/sched: sch_netem: fix out-of-bounds access in packet corruption (diff) | |
virtio_net: clamp rss_max_key_size to NETDEV_RSS_KEY_LEN
rss_max_key_size in the virtio spec is the maximum key size supported by
the device, not a mandatory size the driver must use. Also the value 40
is a spec minimum, not a spec maximum.
The current code rejects RSS and can fail probe when the device reports a
larger rss_max_key_size than the driver buffer limit. Instead, clamp the
effective key length to min(device rss_max_key_size, NETDEV_RSS_KEY_LEN)
and keep RSS enabled.
This keeps probe working on devices that advertise larger maximum key sizes
while respecting the netdev RSS key buffer size limit.
Fixes: 3f7d9c1964fc ("virtio_net: Add hash_key_length check")
Cc: stable@vger.kernel.org
Signed-off-by: Srujana Challa <schalla@marvell.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20260326142344.1171317-1-schalla@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'rust/kernel/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions