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| author | RD Babiera <[email protected]> | 2025-06-18 22:49:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2025-06-24 14:42:55 +0000 |
| commit | af4db5a35a4ef7a68046883bfd12468007db38f1 (patch) | |
| tree | 07a620a10bee33b4292d9feb8bbb6d3433c6eb33 /drivers/fpga/altera-fpga2sdram.c | |
| parent | usb: cdnsp: Fix issue with CV Bad Descriptor test (diff) | |
| download | kernel-af4db5a35a4ef7a68046883bfd12468007db38f1.tar.gz kernel-af4db5a35a4ef7a68046883bfd12468007db38f1.zip | |
usb: typec: altmodes/displayport: do not index invalid pin_assignments
A poorly implemented DisplayPort Alt Mode port partner can indicate
that its pin assignment capabilities are greater than the maximum
value, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show
will cause a BRK exception due to an out of bounds array access.
Prevent for loop in pin_assignment_show from accessing
invalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX
value in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop
condition.
Fixes: 0e3bb7d6894d ("usb: typec: Add driver for DisplayPort alternate mode")
Cc: stable <[email protected]>
Signed-off-by: RD Babiera <[email protected]>
Reviewed-by: Badhri Jagan Sridharan <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/fpga/altera-fpga2sdram.c')
0 files changed, 0 insertions, 0 deletions