This is a note to let you know that I've just added the patch titled efi/esrt: Use memunmap() instead of kfree() to free the remapping to the 4.9-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: efi-esrt-use-memunmap-instead-of-kfree-to-free-the-remapping.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 89c5a2d34bda58319e3075e8e7dd727ea25a435c Mon Sep 17 00:00:00 2001 From: Pan Bian <bianpan2016@xxxxxxx> Date: Wed, 6 Dec 2017 09:50:09 +0000 Subject: efi/esrt: Use memunmap() instead of kfree() to free the remapping From: Pan Bian <bianpan2016@xxxxxxx> commit 89c5a2d34bda58319e3075e8e7dd727ea25a435c upstream. The remapping result of memremap() should be freed with memunmap(), not kfree(). Signed-off-by: Pan Bian <bianpan2016@xxxxxxx> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: linux-efi@xxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/20171206095010.24170-3-ard.biesheuvel@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/firmware/efi/esrt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/firmware/efi/esrt.c +++ b/drivers/firmware/efi/esrt.c @@ -428,7 +428,7 @@ err_remove_group: err_remove_esrt: kobject_put(esrt_kobj); err: - kfree(esrt); + memunmap(esrt); esrt = NULL; return error; } Patches currently in stable-queue which might be from bianpan2016@xxxxxxx are queue-4.9/efi-esrt-use-memunmap-instead-of-kfree-to-free-the-remapping.patch