This is a note to let you know that I've just added the patch titled devm_memremap_release(): fix memremap'd addr handling to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: devm_memremap_release-fix-memremap-d-addr-handling.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9273a8bbf58a15051e53a777389a502420ddc60e Mon Sep 17 00:00:00 2001 From: Toshi Kani <toshi.kani@xxxxxxx> Date: Wed, 17 Feb 2016 13:11:29 -0800 Subject: devm_memremap_release(): fix memremap'd addr handling From: Toshi Kani <toshi.kani@xxxxxxx> commit 9273a8bbf58a15051e53a777389a502420ddc60e upstream. The pmem driver calls devm_memremap() to map a persistent memory range. When the pmem driver is unloaded, this memremap'd range is not released so the kernel will leak a vma. Fix devm_memremap_release() to handle a given memremap'd address properly. Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx> Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/memremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -111,7 +111,7 @@ EXPORT_SYMBOL(memunmap); static void devm_memremap_release(struct device *dev, void *res) { - memunmap(res); + memunmap(*(void **)res); } static int devm_memremap_match(struct device *dev, void *res, void *match_data) Patches currently in stable-queue which might be from toshi.kani@xxxxxxx are queue-4.4/x86-uaccess-64-handle-the-caching-of-4-byte-nocache-copies-properly-in-__copy_user_nocache.patch queue-4.4/devm_memremap_release-fix-memremap-d-addr-handling.patch queue-4.4/x86-mm-fix-vmalloc_fault-to-handle-large-pages-properly.patch queue-4.4/x86-uaccess-64-make-the-__copy_user_nocache-assembly-code-more-readable.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html