I have a similar (same?) problem with my system.
apt list -a --upgradable
Listing... Done
linux-image-amd64/oldstable 4.19+105+deb10u17 amd64 [upgradable from:
4.19+105+deb10u16]
linux-image-amd64/oldstable,now 4.19+105+deb10u16 amd64
[installed,upgradable to: 4.19+105+deb10u17]
dpkg -l | grep linux-image
rc linux-image-4.19.0-13-amd64 4.19.160-2
amd64 Linux 4.19 for 64-bit PCs (signed)
rc linux-image-4.19.0-14-amd64 4.19.171-2
amd64 Linux 4.19 for 64-bit PCs (signed)
rc linux-image-4.19.0-16-amd64 4.19.181-1
amd64 Linux 4.19 for 64-bit PCs (signed)
rc linux-image-4.19.0-17-amd64 4.19.194-3
amd64 Linux 4.19 for 64-bit PCs (signed)
rc linux-image-4.19.0-18-amd64 4.19.208-1
amd64 Linux 4.19 for 64-bit PCs (signed)
rc linux-image-4.19.0-19-amd64 4.19.232-1
amd64 Linux 4.19 for 64-bit PCs (signed)
ii linux-image-4.19.0-20-amd64 4.19.235-1
amd64 Linux 4.19 for 64-bit PCs (signed)
ii linux-image-4.19.0-21-amd64 4.19.249-2
amd64 Linux 4.19 for 64-bit PCs (signed)
ii linux-image-amd64 4.19+105+deb10u16
amd64 Linux for 64-bit PCs (meta-package)
When I try either an "apt upgrade" or "apt full-upgrade", the package is
not upgraded to "4.19+105+deb10u17".
Could this be a result of there being no more updates to buster?
--
Regards,
John Boxall