This is a note to let you know that I've just added the patch titled
MIPS: ath25: Check for kzalloc allocation failure
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: mips-ath25-check-for-kzalloc-allocation-failure.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@vger.kernel.org know about it.
From 1b22b4b28fd5fbc51855219e3238b3ab81da8466 Mon Sep 17 00:00:00 2001
From: Colin Ian King colin.king@canonical.com Date: Thu, 22 Feb 2018 17:50:12 +0000 Subject: MIPS: ath25: Check for kzalloc allocation failure
From: Colin Ian King colin.king@canonical.com
commit 1b22b4b28fd5fbc51855219e3238b3ab81da8466 upstream.
Currently there is no null check on a failed allocation of board_data, and hence a null pointer dereference will occurr. Fix this by checking for the out of memory null pointer.
Fixes: a7473717483e ("MIPS: ath25: add board configuration detection") Signed-off-by: Colin Ian King colin.king@canonical.com Cc: Ralf Baechle ralf@linux-mips.org Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # 3.19+ Patchwork: https://patchwork.linux-mips.org/patch/18657/ Signed-off-by: James Hogan jhogan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/mips/ath25/board.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/mips/ath25/board.c +++ b/arch/mips/ath25/board.c @@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t }
board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL); + if (!board_data) + goto error; ath25_board.config = (struct ath25_boarddata *)board_data; memcpy_fromio(board_data, bcfg, 0x100); if (broken_boarddata) {
Patches currently in stable-queue which might be from colin.king@canonical.com are
queue-4.4/mips-ath25-check-for-kzalloc-allocation-failure.patch queue-4.4/mips-octeon-irq-check-for-null-return-on-kzalloc-allocation.patch