Searched hist:145025 (Results 1 - 2 of 2) sorted by relevance
/freebsd-11-stable/sys/i386/i386/ | ||
H A D | vm86bios.s | diff 145025 Wed Apr 13 16:13:40 MDT 2005 peter Fix an evil bug that appeared in September 2003. VM86 bios calls use two of the __pcb_spare longs. Except that fields were changed and one of the spare values was used and the __pcb_spare field was reduced from two to one long. Now VM86 bios calls can trash the first 4 bytes of the next page following the kernel stack/pcb. This Is Bad(TM). This bug has been present in 5.2-release and onwards, and is still in RELENG_5. Instead of tempting fate and trying to use "spare" fields, explicitly reserve them. |
H A D | genassym.c | diff 145025 Wed Apr 13 16:13:40 MDT 2005 peter Fix an evil bug that appeared in September 2003. VM86 bios calls use two of the __pcb_spare longs. Except that fields were changed and one of the spare values was used and the __pcb_spare field was reduced from two to one long. Now VM86 bios calls can trash the first 4 bytes of the next page following the kernel stack/pcb. This Is Bad(TM). This bug has been present in 5.2-release and onwards, and is still in RELENG_5. Instead of tempting fate and trying to use "spare" fields, explicitly reserve them. |
Completed in 89 milliseconds