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d6ea83ec68
We know that some yum operation is causing CAP_MAC_ADMIN failures. This
implies that an RPM is laying down (or attempting to lay down) a file with
an invalid label. The problem is that we don't have any information to
track down the cause. This patch will cause such a failure to report the
failed label in an SELINUX_ERR audit message. This is similar to the
SELINUX_ERR reports on invalid transitions and things like that. It should
help run down problems on what is trying to set invalid labels in the
future.
Resulting records look something like:
type=AVC msg=audit(1319659241.138:71): avc: denied { mac_admin } for pid=2594 comm="chcon" capability=33 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=capability2
type=SELINUX_ERR msg=audit(1319659241.138:71): op=setxattr invalid_context=unconfined_u:object_r:hello:s0
type=SYSCALL msg=audit(1319659241.138:71): arch=c000003e syscall=188 success=no exit=-22 a0=a2c0e0 a1=390341b79b a2=a2d620 a3=1f items=1 ppid=2519 pid=2594 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="chcon" exe="/usr/bin/chcon" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=CWD msg=audit(1319659241.138:71): cwd="/root" type=PATH msg=audit(1319659241.138:71): item=0 name="test" inode=785879 dev=fc:03 mode=0100644 ouid=0 ogid=0 rdev=00:00 obj=unconfined_u:object_r:admin_home_t:s0
Signed-off-by: Eric Paris <eparis@redhat.com>
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|---|---|---|
| .. | ||
| apparmor | ||
| integrity | ||
| keys | ||
| selinux | ||
| smack | ||
| tomoyo | ||
| yama | ||
| capability.c | ||
| commoncap.c | ||
| device_cgroup.c | ||
| inode.c | ||
| Kconfig | ||
| lsm_audit.c | ||
| Makefile | ||
| min_addr.c | ||
| security.c | ||