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linux/arch/x86/mm
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Michael Kelley 4dbd6a3e90 x86/ioremap: Fix page aligned size calculation in __ioremap_caller() 
Current code re-calculates the size after aligning the starting and
ending physical addresses on a page boundary. But the re-calculation
also embeds the masking of high order bits that exceed the size of
the physical address space (via PHYSICAL_PAGE_MASK). If the masking
removes any high order bits, the size calculation results in a huge
value that is likely to immediately fail.

Fix this by re-calculating the page-aligned size first. Then mask any
high order bits using PHYSICAL_PAGE_MASK.

Fixes: ffa71f33a820 ("x86, ioremap: Fix incorrect physical address handling in PAE mode")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/1668624097-14884-2-git-send-email-mikelley@microsoft.com
2022-11-22 12:21:16 +01:00
..
pat
x86/mm: Do not verify W^X at boot up
2022-10-24 18:05:27 -07:00
amdtopology.c
x86/mm: Replace nodes_weight() with nodes_empty() where appropriate
2022-04-10 22:35:38 +02:00
cpu_entry_area.c
x86/sev: Make the #VC exception stacks part of the default stacks storage
2021-10-06 21:48:27 +02:00
debug_pagetables.c
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
dump_pagetables.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
extable.c
x86: simplify load_unaligned_zeropad() implementation
2022-08-16 11:03:38 -07:00
fault.c
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
highmem_32.c
x86/mm/highmem: Use generic kmap atomic implementation
2020-11-06 23:14:55 +01:00
hugetlbpage.c
arch/x86/mm/hugetlbpage.c: pud_huge() returns 0 when using 2-level paging
2022-11-08 15:57:25 -08:00
ident_map.c
x86/mm/ident_map: Check for errors from ident_pud_init()
2020-10-28 14:48:30 +01:00
init_32.c
x86: mm: rename __is_kernel_text() to is_x86_32_kernel_text()
2021-11-09 10:02:51 -08:00
init_64.c
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
init.c
mm/swap: cache maximum swapfile size when init swap
2022-09-26 19:46:05 -07:00
iomap_32.c
io-mapping: Cleanup atomic iomap
2020-11-06 23:14:58 +01:00
ioremap.c
x86/ioremap: Fix page aligned size calculation in __ioremap_caller()
2022-11-22 12:21:16 +01:00
kasan_init_64.c
memblock: use memblock_free for freeing virtual pointers
2021-11-06 13:30:41 -07:00
kaslr.c
x86: Fix various typos in comments
2021-03-18 15:31:53 +01:00
kmmio.c
x86: Fix various typos in comments
2021-03-18 15:31:53 +01:00
kmsan_shadow.c
x86: kmsan: handle CPU entry area
2022-10-03 14:03:26 -07:00
maccess.c
x86: Share definition of __is_canonical_address()
2022-02-02 13:11:42 +01:00
Makefile
x86: kmsan: handle CPU entry area
2022-10-03 14:03:26 -07:00
mem_encrypt_amd.c
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
2022-08-05 16:32:45 -07:00
mem_encrypt_boot.S
objtool: Update Retpoline validation
2022-06-27 10:33:59 +02:00
mem_encrypt_identity.c
x86/sev: Add SEV-SNP feature detection/setup
2022-04-07 16:47:11 +02:00
mem_encrypt.c
virtio: replace arch_has_restricted_virtio_memory_access()
2022-06-06 08:22:01 +02:00
mm_internal.h
x86/mm: thread pgprot_t through init_memory_mapping()
2020-04-10 15:36:21 -07:00
mmap.c
x86/mm/mmap: Fix -Wmissing-prototypes warnings
2020-04-22 20:19:48 +02:00
mmio-mod.c
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
2022-04-10 22:35:38 +02:00
numa_32.c
x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit
2020-05-28 18:34:30 +02:00
numa_64.c
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
numa_emulation.c
x86/mm: Replace nodes_weight() with nodes_empty() where appropriate
2022-04-10 22:35:38 +02:00
numa_internal.h
…
numa.c
x86/numa: Use cpumask_available instead of hardcoded NULL check
2022-08-03 11:44:57 +02:00
pf_in.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pf_in.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pgprot.c
x86/mm: move protection_map[] inside the platform
2022-07-17 17:14:38 -07:00
pgtable_32.c
mm: remove unneeded includes of <asm/pgalloc.h>
2020-08-07 11:33:26 -07:00
pgtable.c
mm: x86: add CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
2022-09-26 19:46:08 -07:00
physaddr.c
mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions
2019-12-10 10:12:55 +01:00
physaddr.h
…
pkeys.c
x86/pkeys: Clarify PKRU_AD_KEY macro
2022-06-07 16:06:33 -07:00
pti.c
randstruct: Reorganize Kconfigs and attribute macros
2022-05-08 01:33:06 -07:00
srat.c
…
testmmiotrace.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
tlb.c
x86/mm/tlb: Ignore f->new_tlb_gen when zero
2022-07-19 09:04:52 -07:00