Date: Fri, 29 Jan 2010 15:14:59 +0300 (MSK) From: Dmitry Morozovsky <marck@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/143343: ZFS: bug in sunlink flag on directories Message-ID: <201001291214.o0TCExr0012468@woozle.rinet.ru> Resent-Message-ID: <201001291220.o0TCKAbx045049@freefall.freebsd.org>
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>Number: 143343 >Category: kern >Synopsis: ZFS: bug in sunlink flag on directories >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jan 29 12:20:09 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Dmitry Morozovsky >Release: FreeBSD 8-STABLE >Organization: Cronyx Plus LLC (RiNet ISP) >Environment: System: FreeBSD 8-STABLE >Description: On UFS, [s]unlink flag set on a directory does NOT prevent from changing its content, like creating new files or renaming existing. On ZFS, these flags are effectively equivalent to immutable. >How-To-Repeat: Script started on Fri Jan 29 15:02:57 2010 root@hamster:/var/tmp# echo this is ZFS this is ZFS root@hamster:/var/tmp# mkdir sunlnk-test root@hamster:/var/tmp# cd !$ cd sunlnk-test root@hamster:/var/tmp/sunlnk-test# mkdir test root@hamster:/var/tmp/sunlnk-test# chflags sunlnk test root@hamster:/var/tmp/sunlnk-test# echo 123 >test/testfile root@hamster:/var/tmp/sunlnk-test# mv test/testfile test/testfile.new mv: rename test/testfile to test/testfile.new: Operation not permitted root@hamster:/var/tmp/sunlnk-test# exit exit Script done on Fri Jan 29 15:03:52 2010 Script started on Fri Jan 29 15:04:10 2010 root@hamster:/tmp# echo this is UFS this is UFS root@hamster:/tmp# mkdir test root@hamster:/tmp# chflags sunlnk test root@hamster:/tmp# echo 123 >test/testfile root@hamster:/tmp# mv test/testfile test/testfile.new root@hamster:/tmp# rm -rf test rm: test: Operation not permitted root@hamster:/tmp# ls -lao test total 4 drwxr-xr-x 2 root wheel sunlnk 512 Jan 29 15:04 ./ drwxrwxrwt 8 root wheel - 512 Jan 29 15:04 ../ root@hamster:/tmp# exit exit Script done on Fri Jan 29 15:05:11 2010 >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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