Eric Dumazet 4f9e6ff631 nbd: restrict sockets to TCP and UDP ...

[ Upstream commit 9f7c02e031570e8291a63162c6c046dc15ff85b0 ]

Recently, syzbot started to abuse NBD with all kinds of sockets.

Commit cf1b2326b7 ("nbd: verify socket is supported during setup")
made sure the socket supported a shutdown() method.

Explicitely accept TCP and UNIX stream sockets.

Fixes: cf1b2326b7 ("nbd: verify socket is supported during setup")
Reported-by: syzbot+e1cd6bd8493060bd701d@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/CANn89iJ+76eE3A_8S_zTpSyW5hvPRn6V57458hCZGY5hbH_bFA@mail.gmail.com/T/#m081036e8747cd7e2626c1da5d78c8b9d1e55b154
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Richard W.M. Jones <rjones@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Yu Kuai <yukuai1@huaweicloud.com>
Cc: linux-block@vger.kernel.org
Cc: nbd@other.debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-10-15 11:57:52 +02:00

..

aoe

aoe: defer rexmit timer downdev work to workqueue

2025-07-10 16:03:16 +02:00

drbd

drbd: add missing kref_get in handle_write_conflicts

2025-08-28 16:28:15 +02:00

mtip32xx

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

null_blk

null_blk: Fix the description of the cache_size module argument

2025-10-15 11:57:52 +02:00

rnbd

block/rnbd-srv: Check for unlikely string overflow

2024-02-05 20:14:22 +00:00

xen-blkback

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

zram

zram: fix NULL pointer in comp_algorithm_show()

2025-03-22 12:50:37 -07:00

amiflop.c

amiflop: don't call fsync_bdev in FDFMTBEG

2023-08-21 14:35:31 +02:00

ataflop.c

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

brd.c

brd: defer automatic disk creation until module initialization succeeds

2024-12-09 10:31:43 +01:00

floppy.c

floppy: call disk_force_media_change when changing the format

2023-08-21 14:35:31 +02:00

Kconfig

block: ublk: switch to ioctl command encoding

2023-04-18 20:13:30 -06:00

loop.c

loop: Avoid updating block size under exclusive owner

2025-10-02 13:42:54 +02:00

Makefile

Revert "pktcdvd: remove driver."

2023-01-04 14:44:13 -07:00

n64cart.c

block: remove blk_cleanup_disk

2022-06-28 06:33:15 -06:00

nbd.c

nbd: restrict sockets to TCP and UDP

2025-10-15 11:57:52 +02:00

pktcdvd.c

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

ps3disk.c

block: remove blk_cleanup_disk

2022-06-28 06:33:15 -06:00

ps3vram.c

ps3vram: remove bio splitting

2023-01-29 15:18:35 -07:00

rbd_types.h

libceph, rbd: replace zero-length array with flexible-array

2020-06-01 13:22:53 +02:00

rbd.c

rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings

2024-08-03 08:54:32 +02:00

sunvdc.c

sunvdc: Balance device refcount in vdc_port_mpgroup_check

2025-08-28 16:28:11 +02:00

swim3.c

swim3: mark swim3_init() static

2023-08-10 08:32:59 -06:00

swim_asm.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

swim.c

swim: fix a missing FMODE_ -> BLK_OPEN_ conversion in floppy_open

2023-06-20 07:16:04 -06:00

ublk_drv.c

ublk: use vmalloc for ublk_device's __queues

2025-08-15 12:08:40 +02:00

virtio_blk.c

virtio-blk: don't keep queue frozen during system suspend

2025-01-02 10:32:06 +01:00

xen-blkfront.c

Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux

2023-06-26 12:47:20 -07:00

z2ram.c

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00