[SRU][F][PATCH 0/1] CVE-2024-40967

[Yuxuan Luo]

[Impact]
A potential deadlock might occur if too much time were spent for serial
IMX subsystem, leading to denial of service.

[Backport]
Two conflicts occur when backporting the fix commit.
1. Declaration for usr2 variable: it is merely the order of declaration
   of variables, apply it manually.

2. The conflict at read_poll_timeout_atomic: this function is not
   introduced until 57a29df34146 (“iopoll: Introduce
   read_poll_timeout_atomic macro”), which is not a clean cherry pick;
   however, readx_poll_timeout_atomic() can be used interchangeably
   since readx_poll_timeout_atomic becomes an alias of read_poll_...
   after that commit.

[Test]
Compile and boot tested only due to lack of arm64 hardware.

[Where problems could occur]
Regression might occur on all IMX CPU users.

Esben Haabendal (1):
  serial: imx: Introduce timeout when waiting on transmitter empty

 drivers/tty/serial/imx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

-- 
2.43.0