21cb1e63a5
The TPM backend processing thread has common shared variable race issues. (they should not be so easy to reach since guest interaction with the device is slow compared to host emulation) An obvious one is setting op_cancelled from device thread after calling write(cancel_fd). The backend thread may return before the device thread has set the variable. Instead set it before cancellation. Even if the write() failed, the end result is command get possibly cancelled (even if cancellation came from external sources it doesn't matter much). It's worth to consider removing the backend processing thread for now. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> |
||
---|---|---|
.. | ||
Makefile.objs | ||
tpm_emulator.c | ||
tpm_int.h | ||
tpm_ioctl.h | ||
tpm_passthrough.c | ||
tpm_tis.c | ||
tpm_util.c | ||
tpm_util.h |