On 07/04/2009 10:55 AM, Kévin GUERIN wrote:
winbindd is running with no MCS categories and tries to access a file with
c0.c0123.
Access will be granted only if winbindd runs with all the categories that
has the file it wants to interact with.
Kévin
2009/7/4 Vadym Chepkov<chepkov@xxxxxxxxx>
Ok, I am lost
I clearly allowed this.
allow winbind_t crond_t:fifo_file write;
I can see it in the policy:
sesearch --all --source winbind_t --target crond_t
Found 3 semantic av rules:
allow winbind_t crond_t : process sigchld ;
allow winbind_t crond_t : fd use ;
allow winbind_t crond_t : fifo_file { ioctl read write getattr lock
append open } ;
Why do I get denial anyway?
time->Sat Jul 4 10:28:01 2009
type=SYSCALL msg=audit(1246717681.676:10436): arch=40000003 syscall=11
success=yes exit=0 a0=9073c10 a1=9073358 a2=90732a8 a3=9073358 items=0
ppid=20323 pid=20324 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
fsgid=0 tty=(none) ses=777 comm="winbindd" exe="/usr/sbin/winbindd"
subj=system_u:system_r:winbind_t:s0 key=(null)
type=AVC msg=audit(1246717681.676:10436): avc: denied { write } for
pid=20324 comm="winbindd" path="pipe:[611496]" dev=pipefs ino=611496
scontext=system_u:system_r:winbind_t:s0
tcontext=unconfined_u:system_r:crond_t:s0-s0:c0.c1023 tclass=fifo_file
Sincerely yours,
Vadym Chepkov
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I would just change your allow rules to dontaudit, since winbind does
not need access to the fifo_file
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