joy/android_kernel_sony_sdm845
Watch
1
Fork
You've already forked android_kernel_sony_sdm845
 0
Code Issues Pull requests Projects Releases Wiki Activity
android_kernel_sony_sdm845/drivers/s390/block
History
Exact
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Stefan Haberland d86b426783 s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup 
commit db7ba07108a48c0f95b74fabbfd5d63e924f992d upstream.

Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup
pointer being NULL.

The pavgroup pointer is checked on the entrance of the function but
without the lcu->lock being held. Therefore there is a race window
between dasd_alias_get_start_dev() and _lcu_update() which sets
pavgroup to NULL with the lcu->lock held.

Fix by checking the pavgroup pointer with lcu->lock held.

Cc: <stable@vger.kernel.org> # 2.6.25+
Fixes: 8e09f21574 ("[S390] dasd: add hyper PAV support to DASD device driver, part 1")
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20220919154931.4123002-2-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-28 10:55:46 +02:00
..
dasd.c s390/dasd: fix hanging DASD driver unbind 2021-03-17 16:10:15 +01:00
dasd_3990_erp.c
dasd_alias.c s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup 2022-09-28 10:55:46 +02:00
dasd_devmap.c
dasd_diag.c
dasd_diag.h
dasd_eckd.c s390/dasd: Fix capacity calculation for large volumes 2019-05-16 19:43:41 +02:00
dasd_eckd.h
dasd_eer.c
dasd_erp.c
dasd_fba.c
dasd_fba.h
dasd_genhd.c
dasd_int.h
dasd_ioctl.c
dasd_proc.c
dcssblk.c
Kconfig
Makefile
scm_blk.c
scm_blk.h
scm_blk_cluster.c
scm_drv.c
xpram.c