Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 05:02:12 +00:00
Code Issues Packages Projects Releases Wiki Activity
d4c5da5049
linux/drivers
History
Adrian Huang d4c5da5049 dax: Fix stack overflow when mounting fsdax pmem device 
When mounting fsdax pmem device, commit 6180bb446a ("dax: fix
detection of dax support for non-persistent memory block devices")
introduces the stack overflow [1][2]. Here is the call path for
mounting ext4 file system:
  ext4_fill_super
    bdev_dax_supported
      __bdev_dax_supported
        dax_supported
          generic_fsdax_supported
            __generic_fsdax_supported
              bdev_dax_supported

The call path leads to the infinite calling loop, so we cannot
call bdev_dax_supported() in __generic_fsdax_supported(). The sanity
checking of the variable 'dax_dev' is moved prior to the two
bdev_dax_pgoff() checks [3][4].

[1] https://lore.kernel.org/linux-nvdimm/1420999447.1004543.1600055488770.JavaMail.zimbra@redhat.com/
[2] https://lore.kernel.org/linux-nvdimm/alpine.LRH.2.02.2009141131220.30651@file01.intranet.prod.int.rdu2.redhat.com/
[3] https://lore.kernel.org/linux-nvdimm/CA+RJvhxBHriCuJhm-D8NvJRe3h2MLM+ZMFgjeJjrRPerMRLvdg@mail.gmail.com/
[4] https://lore.kernel.org/linux-nvdimm/20200903160608.GU878166@iweiny-DESK2.sc.intel.com/

Fixes: 6180bb446a ("dax: fix detection of dax support for non-persistent memory block devices")
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: Ritesh Harjani <riteshh@linux.ibm.com>
Cc: Coly Li <colyli@suse.de>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: John Pittman <jpittman@redhat.com>
Link: https://lore.kernel.org/r/20200917111549.6367-1-adrianhuang0701@gmail.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-20 08:57:36 -07:00
..
accessibility Char/Misc driver fixes for 5.9-rc3 2020-08-26 10:50:50 -07:00
acpi Merge branch 'acpi-mm' 2020-08-28 21:17:56 +02:00
amba
android
ata libata-5.9-2020-09-04 2020-09-04 13:19:19 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
auxdisplay A trivial patch for auxdisplay: 2020-09-05 14:22:46 -07:00
base Driver core fixes for 5.9-rc5 2020-09-13 09:02:59 -07:00
bcma bcma: gpio: Use irqchip template 2020-08-02 18:26:51 +03:00
block rbd: require global CAP_SYS_ADMIN for mapping and unmapping 2020-09-07 13:14:30 +02:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
bus treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cdrom
char Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-08-30 15:53:44 -07:00
clk More ACPI updates for 5.9-rc1 2020-08-15 08:18:22 -07:00
clocksource treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
connector
counter counter: microchip-tcb-capture: check the correct variable 2020-08-22 11:38:42 +01:00
cpufreq cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled 2020-09-01 21:15:00 +02:00
cpuidle cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic 2020-08-26 12:41:53 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-08-30 15:53:44 -07:00
dax dax: Fix stack overflow when mounting fsdax pmem device 2020-09-20 08:57:36 -07:00
dca
devfreq PM / devfreq: Fix the wrong end with semicolon 2020-07-30 17:22:58 +09:00
dio
dma dmaengine fixes for v5.9-rc4 2020-09-04 12:12:39 -07:00
dma-buf dma-buf: fence-chain: Document missing dma_fence_chain_init() parameter in kerneldoc 2020-09-03 17:47:02 +05:30
edac A fix to properly clear ghes_edac driver state on driver remove so that 2020-08-30 10:47:23 -07:00
eisa
extcon
firewire treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
firmware Driver core fixes for 5.9-rc5 2020-09-13 09:02:59 -07:00
fpga
fsi
gnss
gpio treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
gpu drm-misc-fixes for v5.9-rc5: 2020-09-11 09:49:23 +10:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2020-09-02 12:55:46 -07:00
hsi treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hv hyperv-fixes for 5.9-rc3 2020-08-26 10:44:15 -07:00
hwmon hwmon fixes for v5.9-rc3 2020-08-29 12:37:00 -07:00
hwspinlock
hwtracing treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
i2c i2c: algo: pca: Reapply i2c bus settings after reset 2020-09-09 10:22:40 +02:00
i3c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ide treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
idle cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic 2020-08-26 12:41:53 +02:00
iio Staging / IIO driver fixes for 5.9-rc5 2020-09-13 09:15:20 -07:00
infiniband RDMA second 5.9-rc pull request 2020-09-11 10:02:36 -07:00
input treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
interconnect interconnect: qcom: Fix small BW votes being truncated to zero 2020-09-04 00:07:12 +03:00
iommu iommu/vt-d: Handle 36bit addressing for x86-32 2020-09-04 12:14:28 +02:00
ipack
irqchip A set of fixes for interrupt chip drivers: 2020-08-30 11:56:54 -07:00
isdn treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
leds LEDs changes for 5.9-rc1. 2020-08-05 19:24:27 -07:00
lightnvm treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
macintosh treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mailbox iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
mcb
md dm: Call proper helper to determine dax support 2020-09-20 08:55:09 -07:00
media media fixes for v5.9-rc4 2020-09-03 08:22:16 -07:00
memory treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
memstick treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
message treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mfd - Bug Fixes 2020-08-28 10:15:33 -07:00
misc Char / Misc driver fixes for 5.9-rc5 2020-09-13 08:52:21 -07:00
mmc mmc: sdio: Use mmc_pre_req() / mmc_post_req() 2020-09-07 08:57:44 +02:00
most drivers: most: add USB adapter driver 2020-07-31 14:38:12 +02:00
mtd This pull request contains changes for JFFS2, UBI and UBIFS 2020-08-10 18:20:04 -07:00
mux treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
ntb treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nubus
nvdimm libnvdimm: KASAN: global-out-of-bounds Read in internal_create_group 2020-08-17 14:47:38 -06:00
nvme - Fix a regression in bdev partition locking (Christoph) 2020-09-11 11:55:28 -07:00
nvmem
of of: address: Work around missing device_type property in pcie nodes 2020-08-19 16:30:57 -06:00
opp Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2020-09-01 19:44:20 +02:00
oprofile
parisc Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-08-12 12:41:15 -07:00
parport treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pci treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pcmcia treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
perf treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
phy phy: fixes for 5.9 2020-09-04 12:41:55 +02:00
pinctrl This is the bulk of the pin control changes for the v5.9 2020-08-09 12:52:28 -07:00
platform treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pnp
power treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
powercap powercap/intel_rapl: add support for AlderLake 2020-09-10 19:17:29 +02:00
pps
ps3 treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ptp ptp: ptp_clockmatrix: use i2c_master_send for i2c write 2020-08-19 16:23:22 -07:00
pwm pwm: Changes for v5.9-rc1 2020-08-14 16:00:09 -07:00
rapidio rapidio: Replace 'select' DMAENGINES 'with depends on' 2020-09-05 19:52:54 +03:00
ras
regulator regulator: Fixes for v5.9 2020-09-11 11:25:55 -07:00
remoteproc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
reset treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rpmsg treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rtc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
s390 treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sbus
scsi SCSI fixes on 20200908 2020-09-08 11:42:58 -07:00
sfi
sh iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
siox
slimbus
soc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
soundwire soundwire: fix double free of dangling pointer 2020-09-03 14:10:19 +05:30
spi spi: Fixes for v5.9 2020-09-11 11:35:55 -07:00
spmi
ssb treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
staging Staging / IIO driver fixes for 5.9-rc5 2020-09-13 09:15:20 -07:00
target SCSI fixes on 20200908 2020-09-08 11:42:58 -07:00
tc
tee
thermal - Fix bogus thermal shutdowns for omap4430 where bogus values 2020-09-04 12:49:03 -07:00
thunderbolt thunderbolt: Fixes for v5.9-rc4 2020-09-01 09:48:28 +02:00
tty TTY/Serial fixes for 5.9-rc3 2020-08-26 10:58:20 -07:00
uio
usb USB-serial fixes for 5.9-rc5 2020-09-08 17:50:58 +02:00
vdpa vdpa/mlx5: Avoid warnings about shifts on 32-bit platforms 2020-08-26 08:13:59 -04:00
vfio treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
video video: fbdev: fix OOB read in vga_8planes_imageblit() 2020-09-04 17:27:10 +02:00
virt
virtio virtio: pci: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
visorbus
vlynq
vme
w1
watchdog treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xen xen: branch for v5.9-rc4 2020-09-06 09:59:27 -07:00
zorro
Kconfig
Makefile