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| author | David S. Miller <davem@davemloft.net> | 2016-09-23 06:46:57 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-23 06:46:57 -0400 |
| commit | d6989d4bbe6c4d1c2a76696833a07f044e85694d (patch) | |
| tree | 2d9a70d0feee4d4a20568be1b39a961fa0d27d81 /mm/usercopy.c | |
| parent | 0364a8824c020f12e2d5e9fad963685b58f7574e (diff) | |
| parent | b1f2beb87bb034bb209773807994279f90cace78 (diff) | |
| download | linux-d6989d4bbe6c4d1c2a76696833a07f044e85694d.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'mm/usercopy.c')
| -rw-r--r-- | mm/usercopy.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/usercopy.c b/mm/usercopy.c index 089328f2b920..3c8da0af9695 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -207,8 +207,11 @@ static inline const char *check_heap_object(const void *ptr, unsigned long n, * Some architectures (arm64) return true for virt_addr_valid() on * vmalloced addresses. Work around this by checking for vmalloc * first. + * + * We also need to check for module addresses explicitly since we + * may copy static data from modules to userspace */ - if (is_vmalloc_addr(ptr)) + if (is_vmalloc_or_module_addr(ptr)) return NULL; if (!virt_addr_valid(ptr)) |