Description: fbcon: always restore the old font data in fbcon_do_set_font()
References:
Notes:
 carnil> Introduced in a5a923038d70 ("fbdev: fbcon: Properly revert changes when
 carnil> vc_resize() failed"). Vulnerable versions: 5.15.64 5.19.6 6.0-rc3.
Bugs:
upstream: released (6.8-rc7) [00d6a284fcf3fad1b7e1b5bc3cd87cbfb60ce03f]
6.7-upstream-stable: released (6.7.9) [a2c881413dcc5d801bdc9535e51270cc88cb9cd8]
6.6-upstream-stable: released (6.6.21) [73a6bd68a1342f3a44cac9dffad81ad6a003e520]
6.1-upstream-stable: released (6.1.81) [2f91a96b892fab2f2543b4a55740c5bee36b1a6b]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.7.9-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"