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Helge Deller 8778f3e6e3 parisc: Fix out of array access in match_pci_device() 
commit 615b2665fd upstream.

As found by the ubsan checker, the value of the 'index' variable can be
out of range for the bc[] array:

UBSAN: Undefined behaviour in arch/parisc/kernel/drivers.c:655:21
index 6 is out of range for type 'char [6]'
Backtrace:
 [<104fa850>] __ubsan_handle_out_of_bounds+0x68/0x80
 [<1019d83c>] check_parent+0xc0/0x170
 [<1019d91c>] descend_children+0x30/0x6c
 [<1059e164>] device_for_each_child+0x60/0x98
 [<1019cd54>] parse_tree_node+0x40/0x54
 [<1019d86c>] check_parent+0xf0/0x170
 [<1019d91c>] descend_children+0x30/0x6c
 [<1059e164>] device_for_each_child+0x60/0x98
 [<1019d938>] descend_children+0x4c/0x6c
 [<1059e164>] device_for_each_child+0x60/0x98
 [<1019cd54>] parse_tree_node+0x40/0x54
 [<1019cffc>] hwpath_to_device+0xa4/0xc4

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-24 09:32:03 +02:00
..
.gitignore
asm-offsets.c parisc: Unbreak handling exceptions from kernel modules 2016-04-20 15:41:52 +09:00
audit.c parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
binfmt_elf32.c parisc: fix redefinition of SET_PERSONALITY 2013-03-02 20:15:28 +01:00
cache.c parisc: Fix TLB related boot crash on SMP machines 2016-12-15 08:49:22 -08:00
compat_audit.c parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
drivers.c parisc: Fix out of array access in match_pci_device() 2018-04-24 09:32:03 +02:00
entry.S parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel 2018-01-10 09:27:12 +01:00
firmware.c parisc: delete __cpuinit usage from all users 2013-07-14 19:36:51 -04:00
ftrace.c parisc: ftrace: Remove check of obsolete variable function_trace_stop 2014-07-18 13:57:05 -04:00
hardware.c parisc: add serial ports of C8000/1GHz machine to hardware database 2014-07-13 15:51:58 +02:00
head.S parisc: Increase initial kernel mapping to 32MB on 64bit kernel 2015-11-22 12:22:53 +01:00
hpmc.S parisc: fix partly 16/64k PAGE_SIZE boot 2013-05-06 23:08:32 +02:00
inventory.c parisc: Fix interrupt routing for C8000 serial ports 2013-07-31 23:42:32 +02:00
irq.c parisc: Filter out spurious interrupts in PA-RISC irq handler 2015-09-08 15:31:16 +02:00
Makefile parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
module.c mm: vmalloc: pass additional vm_flags to __vmalloc_node_range() 2015-02-13 21:21:42 -08:00
pa7300lc.c
pacache.S parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel 2018-01-10 09:27:12 +01:00
parisc_ksyms.c parisc: Avoid function pointers for kernel exception routines 2016-04-20 15:41:52 +09:00
pci-dma.c parisc: Fix race in pci-dma.c 2016-12-02 09:09:01 +01:00
pci.c parisc: Remove unused pcibios_init_bus() 2015-12-12 16:07:35 +01:00
pdc_chassis.c parisc: single_open() leaks 2013-05-05 00:10:41 -04:00
pdc_cons.c parisc: don't use module_init for non-modular core pdc_cons code 2015-06-16 14:12:30 -04:00
perf.c parisc: perf: Fix potential NULL pointer dereference 2017-10-08 10:14:19 +02:00
perf_asm.S
perf_images.h
process.c parisc: copy_thread(): rename 'arg' argument to 'kthread_arg' 2015-04-24 13:45:55 +02:00
processor.c parisc: delete __cpuinit usage from all users 2013-07-14 19:36:51 -04:00
ptrace.c parisc: Fix ptrace syscall number and return value modification 2016-03-09 15:34:50 -08:00
real2.S
setup.c parisc: Fix races in parisc_setup_cache_timing() 2016-12-02 09:09:01 +01:00
signal.c parisc: Fix syscall restarts 2015-12-21 10:16:18 +01:00
signal32.c constify copy_siginfo_to_user{,32}() 2013-11-09 00:16:29 -05:00
signal32.h constify copy_siginfo_to_user{,32}() 2013-11-09 00:16:29 -05:00
smp.c parisc: Remove unused function 2015-02-17 10:41:19 +01:00
stacktrace.c
sys_parisc.c mm: larger stack guard gap, between vmas 2017-06-26 07:13:11 +02:00
sys_parisc32.c parisc: drop unused defines and header includes 2014-07-13 15:56:12 +02:00
syscall.S parisc: Fix validity check of pointer size argument in new CAS implementation 2017-11-30 08:37:24 +00:00
syscall_table.S parisc: use compat_sys_keyctl() 2017-07-21 07:44:56 +02:00
time.c parisc: Use platform_device_register_simple("rtc-generic") 2015-09-08 17:53:48 +02:00
topology.c
traps.c parisc: Fix kernel crash with reversed copy_from_user() 2016-04-20 15:41:52 +09:00
unaligned.c parisc: Fix pagefault crash in unaligned __get_user() call 2016-06-24 10:18:20 -07:00
unwind.c parisc: use kernel_text_address() in unwind functions 2013-11-30 22:08:54 +01:00
vmlinux.lds.S parisc: Fix kernel memory layout regarding position of __gp 2016-10-28 03:01:27 -04:00