Ksawlii/kernel_samsung_a53x
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4 commits

Author SHA1 Message Date
Thinh Nguyen
9a69d662c2 usb: core: Track SuperSpeed Plus GenXxY 
[ Upstream commit 0299809be415567366b66f248eed93848b8dc9f3 ]

Introduce ssp_rate field to usb_device structure to capture the
connected SuperSpeed Plus signaling rate generation and lane count with
the corresponding usb_ssp_rate enum.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/b7805d121e5ae4ad5ae144bd860b6ac04ee47436.1615432770.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: f74a7afc224a ("usb: hub: Guard against accesses to uninitialized BOS descriptors")
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2024-11-08 11:26:12 +01:00
Ricardo Cañuelo
b6aff6cd9b usb: hub: Guard against accesses to uninitialized BOS descriptors 
commit f74a7afc224acd5e922c7a2e52244d891bbe44ee upstream.

Many functions in drivers/usb/core/hub.c and drivers/usb/core/hub.h
access fields inside udev->bos without checking if it was allocated and
initialized. If usb_get_bos_descriptor() fails for whatever
reason, udev->bos will be NULL and those accesses will result in a
crash:

BUG: kernel NULL pointer dereference, address: 0000000000000018
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 5 PID: 17818 Comm: kworker/5:1 Tainted: G W 5.15.108-18910-gab0e1cb584e1 #1 <HASH:1f9e 1>
Hardware name: Google Kindred/Kindred, BIOS Google_Kindred.12672.413.0 02/03/2021
Workqueue: usb_hub_wq hub_event
RIP: 0010:hub_port_reset+0x193/0x788
Code: 89 f7 e8 20 f7 15 00 48 8b 43 08 80 b8 96 03 00 00 03 75 36 0f b7 88 92 03 00 00 81 f9 10 03 00 00 72 27 48 8b 80 a8 03 00 00 <48> 83 78 18 00 74 19 48 89 df 48 8b 75 b0 ba 02 00 00 00 4c 89 e9
RSP: 0018:ffffab740c53fcf8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffa1bc5f678000 RCX: 0000000000000310
RDX: fffffffffffffdff RSI: 0000000000000286 RDI: ffffa1be9655b840
RBP: ffffab740c53fd70 R08: 00001b7d5edaa20c R09: ffffffffb005e060
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffffab740c53fd3e R14: 0000000000000032 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffffa1be96540000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 000000022e80c005 CR4: 00000000003706e0
Call Trace:
hub_event+0x73f/0x156e
? hub_activate+0x5b7/0x68f
process_one_work+0x1a2/0x487
worker_thread+0x11a/0x288
kthread+0x13a/0x152
? process_one_work+0x487/0x487
? kthread_associate_blkcg+0x70/0x70
ret_from_fork+0x1f/0x30

Fall back to a default behavior if the BOS descriptor isn't accessible
and skip all the functionalities that depend on it: LPM support checks,
Super Speed capabilitiy checks, U1/U2 states setup.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230830100418.1952143-1-ricardo.canuelo@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-11-08 11:26:08 +01:00
Daniel Micay
27a7d44ba5 drivers: usb: add toggle for disabling newly added USB devices 
Based on the public grsecurity patches.

Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
 2024-10-04 20:09:29 -03:00
Gabriel2392
7ed7ee9edf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00