Author: markj Date: Wed Oct 23 18:00:22 2019 New Revision: 353957 URL: https://svnweb.freebsd.org/changeset/base/353957
Log: Check for bogus_page in vnode_pager_generic_getpages_done(). We now assert that a page is busy when updating its validity-tracking state, but bogus_page is not busied during a getpages operation. Reported by: syzkaller Reviewed by: alc, kib Discussed with: jeff MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D22124 Modified: head/sys/vm/vnode_pager.c Modified: head/sys/vm/vnode_pager.c ============================================================================== --- head/sys/vm/vnode_pager.c Wed Oct 23 17:58:19 2019 (r353956) +++ head/sys/vm/vnode_pager.c Wed Oct 23 18:00:22 2019 (r353957) @@ -1149,6 +1149,8 @@ vnode_pager_generic_getpages_done(struct buf *bp) nextoff = tfoff + PAGE_SIZE; mt = bp->b_pages[i]; + if (mt == bogus_page) + continue; if (nextoff <= object->un_pager.vnp.vnp_size) { /* _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
