Mikhail Lobanov df6a82a6b0 drbd: Add NULL check for net_conf to prevent dereference in state validation ...

commit a5e61b50c9 upstream.

If the net_conf pointer is NULL and the code attempts to access its
fields without a check, it will lead to a null pointer dereference.
Add a NULL check before dereferencing the pointer.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 44ed167da7 ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf")
Cc: stable@vger.kernel.org
Signed-off-by: Mikhail Lobanov <m.lobanov@rosalinux.ru>
Link: https://lore.kernel.org/r/20240909133740.84297-1-m.lobanov@rosalinux.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-10-04 16:29:52 +02:00

..

drbd_actlog.c

drbd: Pass a peer device to the resync and online verify functions

2023-04-01 20:27:55 -06:00

drbd_bitmap.c

drbd: use __bio_add_page to add page to bio

2023-05-31 09:50:02 -06:00

drbd_buildtag.c

drbd: split off drbd_config into separate file

2023-01-29 15:18:33 -07:00

drbd_debugfs.c

drbd: drop API_VERSION define

2023-01-29 15:18:33 -07:00

drbd_debugfs.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_int.h

drbd: Pass a peer device to the resync and online verify functions

2023-04-01 20:27:55 -06:00

drbd_interval.c

drbd: drbd_insert_interval(): Clarify comment

2023-01-29 15:18:33 -07:00

drbd_interval.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_main.c

drbd: Fix atomicity violation in drbd_uuid_set_bm()

2024-10-04 16:29:52 +02:00

drbd_nl.c

genetlink: remove userhdr from struct genl_info

2023-08-15 14:54:44 -07:00

drbd_nla.c

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_nla.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_polymorph_printk.h

drbd: add context parameter to expect() macro

2022-12-01 11:33:49 -07:00

drbd_proc.c

drbd: drop API_VERSION define

2023-01-29 15:18:33 -07:00

drbd_protocol.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_receiver.c

drbd: stop defining __KERNEL_SYSCALLS__

2023-06-05 10:45:25 -06:00

drbd_req.c

drbd: Pass a peer device to the resync and online verify functions

2023-04-01 20:27:55 -06:00

drbd_req.h

drbd: pass drbd_peer_device to __req_mod

2023-04-01 20:27:55 -06:00

drbd_state_change.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_state.c

drbd: Add NULL check for net_conf to prevent dereference in state validation

2024-10-04 16:29:52 +02:00

drbd_state.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_strings.c

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_strings.h

drbd: use consistent license

2022-11-22 19:38:39 -07:00

drbd_vli.h

drbd: remove unnecessary assignment in vli_encode_bits

2023-01-29 15:18:33 -07:00

drbd_worker.c

drbd: Pass a peer device to the resync and online verify functions

2023-04-01 20:27:55 -06:00

Kconfig

drbd: use consistent license

2022-11-22 19:38:39 -07:00

Makefile

drbd: split off drbd_buildtag into separate file

2023-01-29 15:18:33 -07:00