12.1.0: Difference between revisions
| Line 51: | Line 51: | ||
The remaining changes fixed IPC cmd [[Switch_System_Flaws|vulns]]. | The remaining changes fixed IPC cmd [[Switch_System_Flaws|vulns]]. | ||
===[[Internet_Browser|Web-applets]]=== | |||
The [[11.0.0|CFI]] code was updated. | |||
The add/sub instruction was replaced with eor. Hence, the additional code at func entry/exit is now identical. The code now does: | |||
* The low 40-bits of x30 are extracted, then multiplied with x18. | |||
* <code>crc32x w17, w16, x17</code> (which uses the above value - x16 was set to sp after the above bitfield-extract) | |||
* x17 is multiplied with x18 again. | |||
* <code>crc32x w17, wzr, x17</code> | |||
* Then lastly the eor instruction is used with x30, with x17 shifted to bit40. | |||
==See Also== | ==See Also== | ||