The patch titled Subject: rapidio: fix an API misues when rio_add_net() fails has been added to the -mm mm-hotfixes-unstable branch. Its filename is rapidio-fix-an-api-misues-when-rio_add_net-fails.patch
This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...
This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------ From: Haoxiang Li haoxiang_li2024@163.com Subject: rapidio: fix an API misues when rio_add_net() fails Date: Thu, 27 Feb 2025 15:34:09 +0800
rio_add_net() calls device_register() and fails when device_register() fails. Thus, put_device() should be used rather than kfree(). Add "mport->net = NULL;" to avoid a use after free issue.
Link: https://lkml.kernel.org/r/20250227073409.3696854-1-haoxiang_li2024@163.com Fixes: e8de370188d0 ("rapidio: add mport char device driver") Signed-off-by: Haoxiang Li haoxiang_li2024@163.com Reviewed-by: Dan Carpenter dan.carpenter@linaro.org Cc: Alexandre Bounine alex.bou9@gmail.com Cc: Matt Porter mporter@kernel.crashing.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
drivers/rapidio/devices/rio_mport_cdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/rapidio/devices/rio_mport_cdev.c~rapidio-fix-an-api-misues-when-rio_add_net-fails +++ a/drivers/rapidio/devices/rio_mport_cdev.c @@ -1742,7 +1742,8 @@ static int rio_mport_add_riodev(struct m err = rio_add_net(net); if (err) { rmcd_debug(RDEV, "failed to register net, err=%d", err); - kfree(net); + put_device(&net->dev); + mport->net = NULL; goto cleanup; } } _
Patches currently in -mm which might be from haoxiang_li2024@163.com are
m68k-sun3-add-check-for-__pgd_alloc.patch rapidio-fix-an-api-misues-when-rio_add_net-fails.patch