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Alistair Delva 1560763677 block: Check ADMIN before NICE for IOPRIO_CLASS_RT 
commit 94c4b4fd25e6c3763941bdec3ad54f2204afa992 upstream.

Booting to Android userspace on 5.14 or newer triggers the following
SELinux denial:

avc: denied { sys_nice } for comm="init" capability=23
     scontext=u:r:init:s0 tcontext=u:r:init:s0 tclass=capability
     permissive=0

Init is PID 0 running as root, so it already has CAP_SYS_ADMIN. For
better compatibility with older SEPolicy, check ADMIN before NICE.

Fixes: 9d3a39a5f1 ("block: grant IOPRIO_CLASS_RT to CAP_SYS_NICE")
Signed-off-by: Alistair Delva <adelva@google.com>
Cc: Khazhismel Kumykov <khazhy@google.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Paul Moore <paul@paul-moore.com>
Cc: selinux@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: kernel-team@android.com
Cc: stable@vger.kernel.org # v5.14+
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Serge Hallyn <serge@hallyn.com>
Link: https://lore.kernel.org/r/20211115181655.3608659-1-adelva@google.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-25 09:48:45 +01:00
..
partitions
block: fix incorrect references to disk objects
2021-10-18 11:20:38 -06:00
badblocks.c
…
bdev.c
block: genhd: fix double kfree() in __alloc_disk_node()
2021-10-02 07:29:20 -06:00
bfq-cgroup.c
block, bfq: reset last_bfqq_created on group change
2021-10-17 07:03:02 -06:00
bfq-iosched.c
Revert "block, bfq: honor already-setup queue merges"
2021-09-28 06:33:15 -06:00
bfq-iosched.h
block, bfq: cleanup the repeated declaration
2021-08-25 06:45:33 -06:00
bfq-wf2q.c
block: Introduce IOPRIO_NR_LEVELS
2021-08-18 07:21:12 -06:00
bio-integrity.c
block: use bvec_virt in bio_integrity_{process,free}
2021-08-16 10:50:32 -06:00
bio.c
block: don't call rq_qos_ops->done_bio if the bio isn't tracked
2021-09-24 11:04:39 -06:00
blk-cgroup-rwstat.c
…
blk-cgroup-rwstat.h
…
blk-cgroup.c
blk-cgroup: fix missing put device in error path from blkg_conf_pref()
2021-11-25 09:48:41 +01:00
blk-core.c
blkcg: Remove extra blkcg_bio_issue_init
2021-11-25 09:48:32 +01:00
blk-crypto-fallback.c
…
blk-crypto-internal.h
…
blk-crypto.c
blk-crypto: fix check for too-large dun_bytes
2021-08-25 06:45:00 -06:00
blk-exec.c
block: return errors from blk_execute_rq()
2021-06-30 15:35:45 -06:00
blk-flush.c
blk-mq: fix is_flush_rq
2021-08-17 20:17:34 -06:00
blk-integrity.c
block: flush the integrity workqueue in blk_integrity_unregister
2021-09-14 20:03:30 -06:00
blk-ioc.c
…
blk-iocost.c
Merge tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block
2021-08-30 18:52:11 -07:00
blk-iolatency.c
Merge tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block
2021-08-30 18:52:11 -07:00
blk-ioprio.c
…
blk-ioprio.h
…
blk-lib.c
…
blk-map.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
blk-merge.c
Merge tag 'io_uring-bio-cache.5-2021-08-30' of git://git.kernel.dk/linux-block
2021-08-30 19:30:30 -07:00
blk-mq-cpumap.c
…
blk-mq-debugfs-zoned.c
…
blk-mq-debugfs.c
block: decode QUEUE_FLAG_HCTX_ACTIVE in debugfs output
2021-10-04 06:58:39 -06:00
blk-mq-debugfs.h
…
blk-mq-pci.c
…
blk-mq-rdma.c
…
blk-mq-sched.c
blk-mq-sched: Fix blk_mq_sched_alloc_tags() error handling
2021-07-27 16:44:38 -06:00
blk-mq-sched.h
…
blk-mq-sysfs.c
block: remove blk-mq-sysfs dead code
2021-08-02 13:37:29 -06:00
blk-mq-tag.c
blk-mq: avoid to iterate over stale request
2021-09-12 19:32:43 -06:00
blk-mq-tag.h
…
blk-mq-virtio.c
…
blk-mq.c
block: remove inaccurate requeue check
2021-11-18 19:16:17 +01:00
blk-mq.h
…
blk-pm.c
…
blk-pm.h
…
blk-rq-qos.c
…
blk-rq-qos.h
…
blk-settings.c
block: Fix partition check for host-aware zoned block devices
2021-10-27 06:58:01 -06:00
blk-stat.c
…
blk-stat.h
…
blk-sysfs.c
block: call blk_register_queue earlier in device_add_disk
2021-08-23 12:55:45 -06:00
blk-throttle.c
blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()
2021-09-07 08:36:56 -06:00
blk-timeout.c
…
blk-wbt.c
blk-wbt: prevent NULL pointer dereference in wb_timer_fn
2021-11-18 19:16:34 +01:00
blk-wbt.h
…
blk-zoned.c
block: Hold invalidate_lock in BLKRESETZONE ioctl
2021-11-18 19:17:15 +01:00
blk.h
block: bump max plugged deferred size from 16 to 32
2021-11-18 19:16:16 +01:00
bounce.c
block: use memcpy_from_bvec in __blk_queue_bounce
2021-08-02 13:37:28 -06:00
bsg-lib.c
scsi: bsg-lib: Fix commands without data transfer in bsg_transport_sg_io_fn()
2021-08-01 13:21:40 -04:00
bsg.c
scsi: bsg: Fix device unregistration
2021-09-14 00:22:15 -04:00
disk-events.c
block: return errors from disk_alloc_events
2021-08-23 12:55:45 -06:00
elevator.c
block: return ELEVATOR_DISCARD_MERGE if possible
2021-08-09 14:37:47 -06:00
fops.c
block: hold ->invalidate_lock in blkdev_fallocate
2021-09-24 11:06:58 -06:00
genhd.c
block: fix device_add_disk() kobject_create_and_add() error handling
2021-11-18 19:17:08 +01:00
holder.c
block: add back the bd_holder_dir reference in bd_link_disk_holder
2021-08-20 21:14:26 -06:00
ioctl.c
block: Hold invalidate_lock in BLKZEROOUT ioctl
2021-11-18 19:17:15 +01:00
ioprio.c
block: Check ADMIN before NICE for IOPRIO_CLASS_RT
2021-11-25 09:48:45 +01:00
Kconfig
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2021-09-02 15:09:46 -07:00
Kconfig.iosched
Revert "block/mq-deadline: Add cgroup support"
2021-08-11 13:47:26 -06:00
keyslot-manager.c
…
kyber-iosched.c
kyber: avoid q->disk dereferences in trace points
2021-10-15 21:02:57 -06:00
Makefile
Merge tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block
2021-09-11 10:19:51 -07:00
mq-deadline.c
block/mq-deadline: Move dd_queued() to fix defined but not used warning
2021-09-02 06:34:45 -06:00
opal_proto.h
…
sed-opal.c
…
t10-pi.c
block: use bvec_kmap_local in t10_pi_type1_{prepare,complete}
2021-08-02 13:37:28 -06:00