8d59fba493
In the parse_adv_monitor_pattern() function, the value of
the 'length' variable is currently limited to HCI_MAX_EXT_AD_LENGTH(251).
The size of the 'value' array in the mgmt_adv_pattern structure is 31.
If the value of 'pattern[i].length' is set in the user space
and exceeds 31, the 'patterns[i].value' array can be accessed
out of bound when copied.
Increasing the size of the 'value' array in
the 'mgmt_adv_pattern' structure will break the userspace.
Considering this, and to avoid OOB access revert the limits for 'offset'
and 'length' back to the value of HCI_MAX_AD_LENGTH.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Fixes:
|
||
|---|---|---|
| .. | ||
| bluetooth.h | ||
| coredump.h | ||
| hci.h | ||
| hci_core.h | ||
| hci_drv.h | ||
| hci_mon.h | ||
| hci_sock.h | ||
| hci_sync.h | ||
| iso.h | ||
| l2cap.h | ||
| mgmt.h | ||
| rfcomm.h | ||
| sco.h | ||