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authorChristoph Hellwig <hch@lst.de>2021-09-07 19:56:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 11:50:24 -0700
commit8491502f787c4a902bd4f223b578ef47d3490264 (patch)
treefb17f5e99a94cd457c73f7cb7e74c9272c5df8a1 /mm
parent82a70ce0426dd7c4099516175019dccbd18cebf9 (diff)
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.c2
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;