Author: kib Date: Tue Sep 22 21:54:30 2020 New Revision: 366015 URL: https://svnweb.freebsd.org/changeset/base/366015
Log: Improve comment above nameicap_check_dotdot(). Explain why tracker is needed at all. Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D25886 Modified: head/sys/kern/vfs_lookup.c Modified: head/sys/kern/vfs_lookup.c ============================================================================== --- head/sys/kern/vfs_lookup.c Tue Sep 22 21:43:43 2020 (r366014) +++ head/sys/kern/vfs_lookup.c Tue Sep 22 21:54:30 2020 (r366015) @@ -215,7 +215,11 @@ nameicap_cleanup(struct nameidata *ndp, bool clean_lat /* * For dotdot lookups in capability mode, only allow the component * lookup to succeed if the resulting directory was already traversed - * during the operation. Also fail dotdot lookups for non-local + * during the operation. This catches situations where already + * traversed directory is moved to different parent, and then we walk + * over it with dotdots. + * + * Also allow to force failure of dotdot lookups for non-local * filesystems, where external agents might assist local lookups to * escape the compartment. */ _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
