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| author | Christoph Hellwig <hch@lst.de> | 2021-09-07 19:56:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-08 11:50:24 -0700 |
| commit | 8491502f787c4a902bd4f223b578ef47d3490264 (patch) | |
| tree | fb17f5e99a94cd457c73f7cb7e74c9272c5df8a1 /mm | |
| parent | 82a70ce0426dd7c4099516175019dccbd18cebf9 (diff) | |
| download | linux-stable-8491502f787c4a902bd4f223b578ef47d3490264.tar.gz linux-stable-8491502f787c4a902bd4f223b578ef47d3490264.tar.bz2 linux-stable-8491502f787c4a902bd4f223b578ef47d3490264.zip | |
mm: don't allow executable ioremap mappings
There is no need to execute from iomem (and most platforms it is
impossible anyway), so add the pgprot_nx() call similar to vmap.
Link: https://lkml.kernel.org/r/20210824091259.1324527-3-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmalloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index e44983fb2d15..3055f04b486b 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -316,7 +316,7 @@ int ioremap_page_range(unsigned long addr, unsigned long end, { int err; - err = vmap_range_noflush(addr, end, phys_addr, prot, + err = vmap_range_noflush(addr, end, phys_addr, pgprot_nx(prot), ioremap_max_page_shift); flush_cache_vmap(addr, end); return err; |