Date: Sun, 23 Oct 2016 03:48:33 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 213714] getcwd(3) returns EACCES on ZFS when normalization is not none and any parent dir does not have read permission Message-ID: <bug-213714-6@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213714 Bug ID: 213714 Summary: getcwd(3) returns EACCES on ZFS when normalization is not none and any parent dir does not have read permission Product: Base System Version: 11.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: cynix@me.com CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org On 11.0-RELEASE-p1, getcwd(3) returns EACCES under the following conditions: * Current directory is under a ZFS filesystem (seems to also affect other filesystems mounted under ZFS root). * The ZFS dataset's "normalization" property is not "none" (can be any of formC/formD/formKC/formKD). * Any parent directory in the path does not have read permission for the us= er. Whereas on 10.3 (I have tested 10.3-RELEASE-p5 and earlier) it would succeed and populate the correct full path. For example: # zfs create -o normalization=3DformD z/test1 # mkdir -m711 /test1/foo # mkdir /test1/foo/bar # chown nobody /test1/foo/bar # cd /test1/foo/bar # su -m nobody % /bin/pwd pwd: .: Permission denied The problem does not occur if normoalization is none: # zfs create -o normalization=3Dnone z/test2 # mkdir -m711 /test2/foo # mkdir /test2/foo/bar # chown nobody /test2/foo/bar # cd /test2/foo/bar # su -m nobody % /bin/pwd /test2/foo/bar It seems that zfs_acl_next_ace() for the parent dir returns an access_mask = of 0x1200af when normalization is none, and 0x1200a8 otherwise, all else being equal. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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