linux_dsm_epyc7002/drivers/block
Jan Beulich 00805af45a xen-blkback: fix error handling in xen_blkbk_map()
commit 871997bc9e423f05c7da7c9178e62dde5df2a7f8 upstream.

The function uses a goto-based loop, which may lead to an earlier error
getting discarded by a later iteration. Exit this ad-hoc loop when an
error was encountered.

The out-of-memory error path additionally fails to fill a structure
field looked at by xen_blkbk_unmap_prepare() before inspecting the
handle which does get properly set (to BLKBACK_INVALID_HANDLE).

Since the earlier exiting from the ad-hoc loop requires the same field
filling (invalidation) as that on the out-of-memory path, fold both
paths. While doing so, drop the pr_alert(), as extra log messages aren't
going to help the situation (the kernel will log oom conditions already
anyway).

This is XSA-365.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-23 15:53:24 +01:00
..
aoe block: lift setting the readahead size into the block layer 2020-09-24 13:43:39 -06:00
drbd block-5.10-2020-10-12 2020-10-13 12:12:44 -07:00
mtip32xx blk-mq: move failure injection out of blk_mq_complete_request 2020-06-24 09:15:57 -06:00
paride paride/pcd: use bdev_check_media_change 2020-09-10 09:32:31 -06:00
rnbd block/rnbd-clt: avoid module unload race with close confirmation 2021-01-17 14:17:05 +01:00
rsxx rsxx: Use fallthrough pseudo-keyword 2020-10-02 17:54:45 -06:00
xen-blkback xen-blkback: fix error handling in xen_blkbk_map() 2021-02-23 15:53:24 +01:00
zram block-5.10-2020-10-24 2020-10-24 12:46:42 -07:00
amiflop.c amiflop: use bdev_check_media_change 2020-09-10 09:32:30 -06:00
ataflop.c ataflop: use bdev_check_media_change 2020-09-10 09:32:30 -06:00
brd.c bdi: remove BDI_CAP_SYNCHRONOUS_IO 2020-09-24 13:43:39 -06:00
cryptoloop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 30 2019-05-24 17:27:10 +02:00
floppy.c floppy: use bdev_check_media_change 2020-09-10 09:32:30 -06:00
Kconfig block: rsxx: select CONFIG_CRC32 2021-01-17 14:17:03 +01:00
loop.c loop: Fix occasional uevent drop 2020-11-12 13:59:04 -07:00
loop.h
Makefile block/rnbd: include client and server modules into kernel compilation 2020-05-17 18:57:17 -03:00
nbd.c nbd: freeze the queue while we're adding connections 2021-02-03 23:28:36 +01:00
null_blk_main.c null_blk: add support for max open/active zone limit for zoned devices 2020-09-29 08:12:48 -06:00
null_blk_trace.c null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_trace.h null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_zoned.c null_blk: Fail zone append to conventional zones 2020-12-30 11:54:29 +01:00
null_blk.h null_blk: Fix scheduling in atomic with zoned mode 2020-11-06 09:36:42 -07:00
pktcdvd.c pktcdvd: use blkdev_get_by_dev instead of open coding it 2020-09-23 10:43:19 -06:00
ps3disk.c ps3disk: use the default segment boundary 2020-05-19 00:10:35 +10:00
ps3vram.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
rbd_types.h libceph, rbd: replace zero-length array with flexible-array 2020-06-01 13:22:53 +02:00
rbd.c We have: 2020-10-21 10:34:10 -07:00
skd_main.c skd_main: remove unused including <linux/version.h> 2020-10-17 08:11:14 -06:00
skd_s1120.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
sunvdc.c compat_ioctl: block: handle cdrom compat ioctl in non-cdrom drivers 2020-01-03 09:33:15 +01:00
swim3.c swim3: use bdev_check_media_changed 2020-09-10 09:32:31 -06:00
swim_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
swim.c swim: simplify media change handling 2020-09-10 09:32:30 -06:00
sx8.c
umem.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
umem.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348 2019-06-05 17:37:08 +02:00
virtio_blk.c block: add a new revalidate_disk_size helper 2020-09-02 08:00:07 -06:00
xen-blkfront.c xen-blkfront: allow discard-* nodes to be optional 2021-02-03 23:28:44 +01:00
xsysace.c xsysace: use platform_get_resource() and platform_get_irq_optional() 2020-10-29 08:22:33 -06:00
z2ram.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00