diff options
| author | Vladis Dronov <[email protected]> | 2019-07-30 11:33:45 +0200 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-07-31 13:17:33 -0700 |
| commit | b36a1552d7319bbfd5cf7f08726c23c5c66d4f73 (patch) | |
| tree | 591549f6646a88adedd924b4611ce6c514df17d6 /tools/perf/util/trace-event-scripting.c | |
| parent | 1b7e816fc80e668f0ccc8542cec20b9259abace1 (diff) | |
Bluetooth: hci_uart: check for missing tty operations
Certain ttys operations (pty_unix98_ops) lack tiocmget() and tiocmset()
functions which are called by the certain HCI UART protocols (hci_ath,
hci_bcm, hci_intel, hci_mrvl, hci_qca) via hci_uart_set_flow_control()
or directly. This leads to an execution at NULL and can be triggered by
an unprivileged user. Fix this by adding a helper function and a check
for the missing tty operations in the protocols code.
This fixes CVE-2019-10207. The Fixes: lines list commits where calls to
tiocm[gs]et() or hci_uart_set_flow_control() were added to the HCI UART
protocols.
Link: https://syzkaller.appspot.com/bug?id=1b42faa2848963564a5b1b7f8c837ea7b55ffa50
Reported-by: [email protected]
Cc: [email protected] # v2.6.36+
Fixes: b3190df62861 ("Bluetooth: Support for Atheros AR300x serial chip")
Fixes: 118612fb9165 ("Bluetooth: hci_bcm: Add suspend/resume PM functions")
Fixes: ff2895592f0f ("Bluetooth: hci_intel: Add Intel baudrate configuration support")
Fixes: 162f812f23ba ("Bluetooth: hci_uart: Add Marvell support")
Fixes: fa9ad876b8e0 ("Bluetooth: hci_qca: Add support for Qualcomm Bluetooth chip wcn3990")
Signed-off-by: Vladis Dronov <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Reviewed-by: Yu-Chen, Cho <[email protected]>
Tested-by: Yu-Chen, Cho <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions