Description: mm: migrate: fix getting incorrect page mapping during page migration
References:
Notes:
 carnil> Introduced in 64c8902ed441 ("migrate_pages: split unmap_and_move() to _unmap()
 carnil> and _move()"). Vulnerable versions: 6.3-rc1.
Bugs:
upstream: released (6.8-rc1) [d1adb25df7111de83b64655a80b5a135adbded61]
6.7-upstream-stable: released (6.7.3) [3889a418b6eb9a1113fb989aaadecf2f64964767]
6.6-upstream-stable: released (6.6.15) [9128bfbc5c80d8f4874dd0a0424d1f5fb010df1b]
6.1-upstream-stable: N/A "Vulnerable code not present"
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.6.15-1)
6.1-bookworm-security: N/A "Vulnerable code not present"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"