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The Switch 12.1.0 system update was released on July 6, 2021 (UTC). This Switch update was released for the following regions: ALL.
The Switch 12.1.0 system update was released on July 6, 2021 (UTC). This Switch update was released for the following regions: ALL.
Security flaws fixed: <fill this in manually later, see the updatedetails page from the ninupdates-report page(s) once available for now>.
Security flaws fixed: yes.
==Change-log==
==Change-log==
===BootImagePackage===
===BootImagePackage===
All files in RomFS were updated.
All files in RomFS were updated.
===[[USB_services|usb]]===
The only change was updating the [[USB_services#HidGamepad|json]].
===[[Bluetooth_Driver_services|bluetooth]]===
===[[Bluetooth_Driver_services|bluetooth]]===
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.
A vuln with RNG was [[Switch_System_Flaws|fixed]].
==See Also==
==See Also==