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| author | Ian Abbott <[email protected]> | 2020-07-17 15:52:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-07-20 10:19:03 +0200 |
| commit | 926234f1b8434c4409aa4c53637aa3362ca07cea (patch) | |
| tree | dc236450840de8b3b5af4f66237e5488528e5968 /lib/mpi/mpi-bit.c | |
| parent | fc846e9db67c7e808d77bf9e2ef3d49e3820ce5d (diff) | |
staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift
The `INSN_CONFIG` comedi instruction with sub-instruction code
`INSN_CONFIG_DIGITAL_TRIG` includes a base channel in `data[3]`. This is
used as a right shift amount for other bitmask values without being
checked. Shift amounts greater than or equal to 32 will result in
undefined behavior. Add code to deal with this.
Fixes: 1e15687ea472 ("staging: comedi: addi_apci_1564: add Change-of-State interrupt subdevice and required functions")
Cc: <[email protected]> #3.17+
Signed-off-by: Ian Abbott <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-bit.c')
0 files changed, 0 insertions, 0 deletions