Module Name: src
Committed By: ad
Date: Tue Mar 17 22:37:05 UTC 2020
Modified Files:
src/sys/arch/x86/x86: pmap.c
Log Message:
- pmap_enter(): under low memory conditions, if PTP allocation succeeded and
then PV entry allocation failed, PTP pages were being freed without their
struct pmap_page being reset back to the non-PTP setup, which then caused
havoc with pmap_page_removed(). Fix it.
- pmap_enter_pv(): don't do the PV check if memory allocation failed.
Reported-by: syzbot+d9b42238107c155ca...@syzkaller.appspotmail.com
Reported-by: syzbot+80cf4850dc1cf2990...@syzkaller.appspotmail.com
To generate a diff of this commit:
cvs rdiff -u -r1.374 -r1.375 src/sys/arch/x86/x86/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
