58189f4965
On Debian, haveged fails to start with "haveged: Couldn't open random
device: Permission denied". strace shows:
openat(AT_FDCWD, "/dev/random", O_RDWR) = -1 EACCES (Permission denied)
audit.log has:
type=AVC msg=audit(1566048720.132:1338): avc: denied { search }
for pid=20235 comm="haveged" name="/" dev="tmpfs" ino=76666
scontext=system_u:system_r:entropyd_t
tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=0
With systemd, /dev is a temporary filesystem (tmpfs_t), so haveged needs
the search permission to it in order to open /dev/random. Use the
newly-added interface to allow this access.
Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
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