Mark Rutland 1d08a044cf arm64: fix CONFIG_DEBUG_WX address reporting ...

In ptdump_check_wx(), we pass walk_pgd() a start address of 0 (rather
than VA_START) for the init_mm. This means that any reported W&X
addresses are offset by VA_START, which is clearly wrong and can make
them appear like userspace addresses.

Fix this by telling the ptdump code that we're walking init_mm starting
at VA_START. We don't need to update the addr_markers, since these are
still valid bounds regardless.

Cc: <stable@vger.kernel.org>
Fixes: 1404d6f13e47 ("arm64: dump: Add checking for writable and exectuable pages")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Reported-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

2017-12-14 10:18:23 +00:00

..

cache.S

arm64: Implement pmem API support

2017-08-09 12:15:45 +01:00

context.c

arm64: context: Fix comments and remove pointless smp_wmb()

2017-12-01 13:05:08 +00:00

copypage.c

arm64: Defer dcache flush in __cpu_copy_user_page

2015-12-17 11:07:13 +00:00

dma-mapping.c

dma mapping : export caller to vmallocinfo

2017-10-04 13:43:00 +01:00

dump.c

arm64: fix CONFIG_DEBUG_WX address reporting

2017-12-14 10:18:23 +00:00

extable.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fault.c

arm64: fault: avoid send SIGBUS two times

2017-12-13 09:58:13 +00:00

flush.c

arm64: fix pmem interface definition

2017-08-10 18:13:59 +01:00

hugetlbpage.c

arm64: hugetlb: Cleanup setup_hugepagesz

2017-08-22 17:47:12 +01:00

init.c

arm64: Initialise high_memory global variable earlier

2017-12-11 16:13:10 +00:00

ioremap.c

arm64: use is_vmalloc_addr

2017-02-09 13:47:56 +00:00

kasan_init.c

arm64/mm/kasan: don't use vmemmap_populate() to initialize shadow

2017-11-15 18:21:05 -08:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mmap.c

arm64/mmap: properly account for stack randomization in mmap_base

2017-07-12 16:26:03 -07:00

mmu.c

arm64: mm: Remove arch_apei_flush_tlb_one()

2017-11-07 12:13:33 +01:00

numa.c

arm64/numa: Drop duplicate message

2017-07-20 17:03:53 +01:00

pageattr.c

arm64: use set_memory.h header

2017-05-08 17:15:13 -07:00

pgd.c

arm64: pgd: Mark pgd_cache as __ro_after_init

2017-12-01 13:05:04 +00:00

physaddr.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

proc.S

arm64: explicitly mask all exceptions

2017-11-02 15:55:40 +00:00

ptdump_debugfs.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00