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Code Issues Releases Packages Activity
linux/drivers/usb
History
Alan Stern 43f569fd06 USB: sisusbvga: Add endpoint checks 
commit df05a9b05e upstream.

The syzbot fuzzer was able to provoke a WARNING from the sisusbvga driver:

------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 1 PID: 26 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
Modules linked in:
CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.2.0-rc5-syzkaller-00199-g5af6ce704936 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
Code: 7c 24 18 e8 6c 50 80 fb 48 8b 7c 24 18 e8 62 1a 01 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 60 b1 fa 8a e8 84 b0 be 03 <0f> 0b e9 58 f8 ff ff e8 3e 50 80 fb 48 81 c5 c0 05 00 00 e9 84 f7
RSP: 0018:ffffc90000a1ed18 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888012783a80 RSI: ffffffff816680ec RDI: fffff52000143d95
RBP: ffff888079020000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000003
R13: ffff888017d33370 R14: 0000000000000003 R15: ffff888021213600
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005592753a60b0 CR3: 0000000022899000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sisusb_bulkout_msg drivers/usb/misc/sisusbvga/sisusbvga.c:224 [inline]
 sisusb_send_bulk_msg.constprop.0+0x904/0x1230 drivers/usb/misc/sisusbvga/sisusbvga.c:379
 sisusb_send_bridge_packet drivers/usb/misc/sisusbvga/sisusbvga.c:567 [inline]
 sisusb_do_init_gfxdevice drivers/usb/misc/sisusbvga/sisusbvga.c:2077 [inline]
 sisusb_init_gfxdevice+0x87b/0x4000 drivers/usb/misc/sisusbvga/sisusbvga.c:2177
 sisusb_probe+0x9cd/0xbe2 drivers/usb/misc/sisusbvga/sisusbvga.c:2869
...

The problem was caused by the fact that the driver does not check
whether the endpoints it uses are actually present and have the
appropriate types.  This can be fixed by adding a simple check of
the endpoints.

Link: https://syzkaller.appspot.com/bug?extid=23be03b56c5259385d79
Reported-and-tested-by: syzbot+23be03b56c5259385d79@syzkaller.appspotmail.com
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/48ef98f7-51ae-4f63-b8d3-0ef2004bb60a@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-05-30 13:55:31 +01:00
..
atm usb: atm: cxacru: Fix typo in comment 2021-05-21 20:05:40 +02:00
c67x00 usb/c67x00: Replace tasklet with work 2021-01-26 18:36:37 +01:00
cdns3 usb: cdnsp: Fixes error: uninitialized symbol 'len' 2023-04-13 16:48:20 +02:00
chipidea usb: chipidea: fix missing goto in ci_hdrc_probe 2023-05-11 23:00:33 +09:00
class USB: usbtmc: Fix direction for 0-length ioctl control messages 2023-05-24 17:36:52 +01:00
common Revert "usb: ulpi: defer ulpi_register on ulpi_read_id timeout" 2023-01-18 11:48:58 +01:00
core USB: core: Add routines for endpoint checks in old drivers 2023-05-30 13:55:31 +01:00
dwc2 usb: dwc2: fix a devres leak in hw_enable upon suspend resume 2023-03-30 12:47:55 +02:00
dwc3 usb: dwc3: fix gadget mode suspend interrupt handler issue 2023-05-30 13:55:29 +01:00
early usb: early: xhci-dbc: Fix a potential out-of-bound memory access 2023-03-10 09:39:39 +01:00
gadget usb: gadget: Properly configure the device for remote wakeup 2023-05-30 13:55:29 +01:00
host xhci: Fix incorrect tracking of free space on transfer rings 2023-05-24 17:36:53 +01:00
image USB: microtek: use set_host_byte() 2020-09-16 12:42:10 +02:00
isp1760 usb: isp1760: Fix out-of-bounds array access 2022-06-09 10:22:27 +02:00
misc USB: sisusbvga: Add endpoint checks 2023-05-30 13:55:31 +01:00
mon usb: mon: make mmapped memory read only 2022-10-12 09:53:28 +02:00
mtu3 usb: mtu3: fix kernel panic at qmu transfer done irq handler 2023-05-11 23:00:33 +09:00
musb usb: musb: mediatek: don't unregister something that wasn't registered 2023-03-10 09:39:40 +01:00
phy extcon: Fix extcon_get_extcon_dev() error handling 2022-06-14 18:36:21 +02:00
renesas_usbhs usb: renesas: Fix refcount leak bug 2022-08-25 11:40:33 +02:00
roles usb: roles: fix of node refcount leak in usb_role_switch_is_parent() 2022-12-31 13:14:30 +01:00
serial USB: serial: option: add UNISOC vendor and TOZED LT70C product 2023-05-01 08:23:23 +09:00
storage usb-storage: fix deadlock when a scsi command timeouts more than once 2023-05-24 17:36:52 +01:00
typec usb: typec: altmodes/displayport: fix pin_assignment_show 2023-05-24 17:36:53 +01:00
usbip usb: usbip: add missing device lock on tweak configuration cmd 2022-06-14 18:36:04 +02:00
Kconfig usb: remove reference to deleted config STB03xxx 2021-08-18 15:32:19 +02:00
Makefile usb: host: remove line for obsolete config USB_HWA_HCD 2021-08-18 15:32:19 +02:00
usb-skeleton.c USB: usb-skeleton: drop redundant in-urb check 2019-10-10 12:41:19 +02:00