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e0baa01438
linux/arch/xtensa/include/asm
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Max Filippov e0baa01438 xtensa: use __memset in __xtensa_clear_user 
memset on xtensa is capable of accessing user memory, but KASAN checks
if memset function is actually used for that and reports it as an error:

 ==================================================================
 BUG: KASAN: user-memory-access in padzero+0x4d/0x58
 Write of size 519 at addr 0049ddf9 by task init/1

 Call Trace:
  [<b0189978>] kasan_report+0x160/0x238
  [<b0188818>] check_memory_region+0xf8/0x100
  [<b018891c>] memset+0x20/0x34
  [<b0238b71>] padzero+0x4d/0x58
 ==================================================================

Use __memset in __xtensa_clear_user to avoid that.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2017-12-16 22:37:13 -08:00
..
asm-offsets.h
asm-uaccess.h uaccess: move VERIFY_{READ,WRITE} definitions to linux/uaccess.h 2017-03-05 20:40:25 -05:00
asmmacro.h xtensa: clean up word alignment macros in assembly code 2017-12-10 14:48:53 -08:00
atomic.h locking/atomic: Remove linux/atomic.h:atomic_fetch_or() 2016-06-16 10:48:32 +02:00
barrier.h xtensa: define __smp_xxx 2016-01-12 20:46:58 +02:00
bitops.h xtensa: fix __ffs result type 2016-07-24 06:33:29 +03:00
bootparam.h xtensa: split bootparam and kernel meminfo 2014-04-02 01:35:51 +04:00
bugs.h
cache.h dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
cacheasm.h xtensa: define ___unlock_[di]cache_all unconditionally 2016-06-29 04:18:45 +03:00
cacheflush.h xtensa: support DMA to high memory 2015-11-09 01:25:37 +03:00
checksum.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cmpxchg.h xtensa: implement fake NMI 2015-08-17 07:33:39 +03:00
coprocessor.h xtensa: reorganize SR referencing 2012-10-15 21:48:08 -07:00
current.h xtensa: consolidate kernel stack size related definitions 2017-12-10 14:48:55 -08:00
delay.h xtensa: implement ndelay 2014-01-15 00:28:11 +04:00
dma-mapping.h xtensa: remove DMA_ERROR_CODE 2017-06-20 11:13:07 +02:00
dma.h Fix common misspellings 2011-03-31 11:26:23 -03:00
elf.h xtensa: add support for TLS 2013-02-23 19:35:57 -08:00
fixmap.h xtensa: move fixmap and kmap just above the KSEG 2017-12-16 22:37:12 -08:00
flat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ftrace.h ftrace: Make CALLER_ADDRx macros more generic 2014-05-21 03:10:32 -04:00
futex.h futex: Remove duplicated code and fix undefined behaviour 2017-08-25 22:49:59 +02:00
highmem.h xtensa: move fixmap and kmap just above the KSEG 2017-12-16 22:37:12 -08:00
hw_breakpoint.h xtensa: support hardware breakpoints/watchpoints 2016-03-11 08:53:32 +00:00
hw_irq.h
initialize_mmu.h xtensa: cleanup MMU setup and kernel layout macros 2016-07-24 06:33:58 +03:00
io.h xtensa: support ioremap for memory outside KIO region 2016-01-11 17:37:36 +03:00
irq.h xtensa: don't use linux IRQ #0 2017-06-05 16:53:10 -07:00
irqflags.h xtensa: support hardware breakpoints/watchpoints 2016-03-11 08:53:32 +00:00
kasan.h xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
Kbuild xtensa: remove wrapper header for asm/param.h 2017-07-21 03:13:29 -07:00
kmem_layout.h xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
linkage.h xtensa: clean up functions in assembly code 2017-12-10 14:48:54 -08:00
mmu_context.h xtensa: extract init_kio 2017-12-16 22:37:10 -08:00
mmu.h xtensa: add SMP support 2014-01-14 10:19:58 -08:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mxregs.h xtensa: add MX irqchip 2014-01-14 10:19:58 -08:00
nommu_context.h xtensa: extract init_kio 2017-12-16 22:37:10 -08:00
page.h xtensa: move fixmap and kmap just above the KSEG 2017-12-16 22:37:12 -08:00
pci-bridge.h xtensa: clean up files to make them code-style compliant 2012-12-18 21:10:25 -08:00
pci.h PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space 2017-04-18 13:02:26 -05:00
perf_event.h xtensa: enable HAVE_PERF_EVENTS 2014-01-15 00:27:03 +04:00
pgalloc.h tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
pgtable.h xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
platform.h xtensa: extract common CPU reset code into separate function 2016-09-11 23:53:22 -07:00
processor.h arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
ptrace.h xtensa: clean up exception handling structure 2017-12-16 22:37:09 -08:00
regs.h xtensa: clean up exception handling structure 2017-12-16 22:37:09 -08:00
segment.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
serial.h
shmparam.h
signal.h consolidate kernel-side struct sigaction declarations 2013-02-03 15:09:22 -05:00
smp.h xtensa: implement CPU hotplug 2014-01-14 10:19:59 -08:00
spinlock_types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spinlock.h arch: Remove spin_unlock_wait() arch-specific definitions 2017-08-17 08:08:59 -07:00
stackprotector.h xtensa: enable stack protector 2017-12-16 22:37:07 -08:00
stacktrace.h xtensa: move oprofile stack tracing to stacktrace.c 2015-08-17 07:32:49 +03:00
string.h xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
switch_to.h Disintegrate asm/system.h for Xtensa 2012-03-28 18:30:03 +01:00
syscall.h xtensa: switch to generic sigaltstack 2013-02-03 18:16:27 -05:00
sysmem.h xtensa: drop sysmem and switch to memblock 2016-07-24 06:34:00 +03:00
thread_info.h xtensa: consolidate kernel stack size related definitions 2017-12-10 14:48:55 -08:00
timex.h xtensa: use XTENSA_INT_LEVEL macro in asm/timex.h 2016-01-11 17:32:40 +03:00
tlb.h
tlbflush.h xtensa: optimize local_flush_tlb_kernel_range 2014-04-06 21:29:17 +04:00
traps.h xtensa: implement early_trap_init 2017-12-16 22:37:09 -08:00
types.h UAPI: (Scripted) Disintegrate arch/xtensa/include/asm 2012-10-15 21:48:53 -07:00
uaccess.h xtensa: use __memset in __xtensa_clear_user 2017-12-16 22:37:13 -08:00
ucontext.h
unaligned.h
unistd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user.h
vectors.h xtensa: allow merging vectors into .text section 2017-03-01 12:32:50 -08:00
vga.h