Tetsuo Handa bb27aecf06 misc: vmw_vmci: explicitly initialize vmci_datagram payload ... commit b2192cfeba8481224da0a4ec3b4a7ccd80b1623b upstream. KMSAN complains that vmci_check_host_caps() left the payload part of check_msg uninitialized. ===================================================== BUG: KMSAN: uninit-value in kmsan_check_memory+0xd/0x10 CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.11.0-rc7+ #4 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 02/27/2020 Call Trace: dump_stack+0x21c/0x280 kmsan_report+0xfb/0x1e0 kmsan_internal_check_memory+0x202/0x520 kmsan_check_memory+0xd/0x10 iowrite8_rep+0x86/0x380 vmci_guest_probe_device+0xf0b/0x1e70 pci_device_probe+0xab3/0xe70 really_probe+0xd16/0x24d0 driver_probe_device+0x29d/0x3a0 device_driver_attach+0x25a/0x490 __driver_attach+0x78c/0x840 bus_for_each_dev+0x210/0x340 driver_attach+0x89/0xb0 bus_add_driver+0x677/0xc40 driver_register+0x485/0x8e0 __pci_register_driver+0x1ff/0x350 vmci_guest_init+0x3e/0x41 vmci_drv_init+0x1d6/0x43f do_one_initcall+0x39c/0x9a0 do_initcall_level+0x1d7/0x259 do_initcalls+0x127/0x1cb do_basic_setup+0x33/0x36 kernel_init_freeable+0x29a/0x3ed kernel_init+0x1f/0x840 ret_from_fork+0x1f/0x30 Uninit was created at: kmsan_internal_poison_shadow+0x5c/0xf0 kmsan_slab_alloc+0x8d/0xe0 kmem_cache_alloc+0x84f/0xe30 vmci_guest_probe_device+0xd11/0x1e70 pci_device_probe+0xab3/0xe70 really_probe+0xd16/0x24d0 driver_probe_device+0x29d/0x3a0 device_driver_attach+0x25a/0x490 __driver_attach+0x78c/0x840 bus_for_each_dev+0x210/0x340 driver_attach+0x89/0xb0 bus_add_driver+0x677/0xc40 driver_register+0x485/0x8e0 __pci_register_driver+0x1ff/0x350 vmci_guest_init+0x3e/0x41 vmci_drv_init+0x1d6/0x43f do_one_initcall+0x39c/0x9a0 do_initcall_level+0x1d7/0x259 do_initcalls+0x127/0x1cb do_basic_setup+0x33/0x36 kernel_init_freeable+0x29a/0x3ed kernel_init+0x1f/0x840 ret_from_fork+0x1f/0x30 Bytes 28-31 of 36 are uninitialized Memory access of size 36 starts at ffff8881675e5f00 ===================================================== Fixes: 1f16643991 ("VMCI: guest side driver implementation.") Cc: <stable@vger.kernel.org> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: https://lore.kernel.org/r/20210402121742.3917-2-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-14 09:49:59 +02:00
..
altera-stapl
c2port
cardreader	misc: rtsx: init of rts522a add OCP power off when no card is present	2021-03-04 11:38:32 +01:00
cb710
cxl
echo
eeprom	misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom	2021-03-11 14:17:27 +01:00
genwqe
habanalabs	habanalabs: Call put_pid() when releasing control device	2021-03-30 14:31:50 +02:00
ibmasm
lis3lv02d	misc: lis3lv02d: Fix false-positive WARN on various HP models	2021-05-14 09:49:58 +02:00
lkdtm	lkdtm: don't move ctors to .rodata	2021-02-17 11:02:24 +01:00
mei	mei: me: add Alder Lake P device id.	2021-05-02 11:06:09 +02:00
ocxl	powerpc updates for 5.10	2020-10-16 12:21:15 -07:00
sgi-gru
sgi-xp
ti-st
uacce	Char/Misc driver patches for 5.10-rc1	2020-10-15 10:01:51 -07:00
vmw_vmci	misc: vmw_vmci: explicitly initialize vmci_datagram payload	2021-05-14 09:49:59 +02:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
atmel_tclib.c
atmel-ssc.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c
fastrpc.c	misc: fastrpc: restrict user apps from sending kernel RPC messages	2021-03-17 17:06:31 +01:00
hisi_hikey_usb.c
hmc6352.c
hpilo.c
hpilo.h
ibmvmc.c
ibmvmc.h
ics932s401.c
isl29003.c
isl29020.c
Kconfig	misc: mic: remove the MIC drivers	2020-10-28 19:12:03 +01:00
kgdbts.c
lattice-ecp3-config.c
Makefile	misc: mic: remove the MIC drivers	2020-10-28 19:12:03 +01:00
pch_phub.c
pci_endpoint_test.c	misc: pci_endpoint_test: fix return value of error branch	2020-12-30 11:53:45 +01:00
phantom.c
pti.c
pvpanic.c	misc/pvpanic: Export module FDT device table	2021-03-17 17:06:31 +01:00
qcom-coincell.c
sram-exec.c
sram.c
sram.h
tifm_7xx1.c
tifm_core.c
tsl2550.c
vmw_balloon.c
xilinx_sdfec.c