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mm/vmalloc: do not call kmemleak_free() on not yet accounted memory

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__vmalloc_area_node() calls vfree() on error path, which in turn calls
kmemleak_free(), but area is not yet accounted by kmemleak_vmalloc().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Roman Penyaev <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: "Luis R. Rodriguez" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Roman Penyaev 2019-03-05 15:43:24 -08:00 • committed by Linus Torvalds
commit c67dc62475
1 changed files with 11 additions and 5 deletions
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16
mm/vmalloc.c
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@ -1565,6 +1565,14 @@ void vfree_atomic(const void *addr)
__vfree_deferred(addr);
}
static void __vfree(const void *addr)
{
if (unlikely(in_interrupt()))
__vfree_deferred(addr);
else
__vunmap(addr, 1);
}
/**
* vfree - release memory allocated by vmalloc()
* @addr: memory base address
@ -1591,10 +1599,8 @@ void vfree(const void *addr)
if (!addr)
return;
if (unlikely(in_interrupt()))
__vfree_deferred(addr);
else
__vunmap(addr, 1);
__vfree(addr);
}
EXPORT_SYMBOL(vfree);
@ -1709,7 +1715,7 @@ fail:
warn_alloc(gfp_mask, NULL,
"vmalloc: allocation failure, allocated %ld of %ld bytes",
(area->nr_pages*PAGE_SIZE), area->size);
vfree(area->addr);
__vfree(area->addr);
return NULL;
}