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d4e0a94511
Currently the wutmp abstraction has the following rules:
/var/log/lastlog rwk,
/var/log/wtmp wk,
@{run}/utmp rwk,
According to what I see in my apparmor profiles, just a few apps want
to interact with the files listed above, especially with the
/var/log/wtmp . But when the apps do this, they sometimes want the
read access to this file. An example could be the last command. Is
there any reason for not having the r in the rule? The second thing
is the file /var/log/btmp (which isn't included in the
abstracion). Whenever I see an app, which wants to access the
/var/log/wtmp file, it also tries to interact with the /var/log/btmp
file, for instance lightdm/sddm or su . Most of the time they need
just wk permissions, but sometimes apps need also r on this file, an
example could be the lastb command, which is just a link to last.
Fixes: https://gitlab.com/apparmor/apparmor/-/issues/152
MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/724
Signed-off-by: John Johansen <john.johansen@canonical.com>
22 lines
711 B
Text
22 lines
711 B
Text
# ------------------------------------------------------------------
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#
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# Copyright (C) 2002-2009 Novell/SUSE
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# Copyright (C) 2009 Canonical Ltd.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of version 2 of the GNU General Public
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# License published by the Free Software Foundation.
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#
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# ------------------------------------------------------------------
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abi <abi/3.0>,
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# some services update wtmp, utmp, and lastlog with per-user
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# connection information
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/var/log/lastlog rwk,
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/var/log/wtmp rwk,
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/var/log/btmp rwk,
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@{run}/utmp rwk,
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# Include additions to the abstraction
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include if exists <abstractions/wutmp.d>
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