diff options
| author | Johan Hovold <[email protected]> | 2021-09-06 14:45:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-09-14 09:18:18 +0200 |
| commit | 92dc0b1f46e12cfabd28d709bb34f7a39431b44f (patch) | |
| tree | 2394c04a918fd9ad43d0f8c10678735cfb83d9f6 /drivers/fpga/fpga-bridge.c | |
| parent | 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff) | |
staging: greybus: uart: fix tty use after free
User space can hold a tty open indefinitely and tty drivers must not
release the underlying structures until the last user is gone.
Switch to using the tty-port reference counter to manage the life time
of the greybus tty state to avoid use after free after a disconnect.
Fixes: a18e15175708 ("greybus: more uart work")
Cc: [email protected] # 4.9
Reviewed-by: Alex Elder <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions