as the ACCEPTED messages should tell you 2.4.27-4 has been uploaded.
This should not require a rebuild at all; however, if you have
CONFIG_TIGON3 in your config, it may be best to rebuild if users are
reporting weird problems with it. (pci_name(&tp->pdev) was used instead
of pci_name(tp->pdev). Ugh.)
It seems that hppa, i386 (which I'll deal with shortly, it warrants a
rebuild anyway for some possible USB fixes that a user is having),
alpha, and ia64 might be affected by this bug.
Really, though, it should only affect people who use the tg3 firmware,
as far as I can tell. The error was in tg3_request_firmware.
So rebuild and reupload against kernel-tree-2.4.27-4 as you see fit,
maintainers. Sorry for this inconvenience. 
Note that the firmwareless tg3 patch applied in 2.4.26-6 is not affected
at all, it was detected and fix before the package got uploaded.
 May i note that mips does not yet use kernel-tree-2.4.xx-n for their
Build-Depends.. you should do so soon.. ;)