Re: [PATCH 5.10 1/1] i40e: Add checking for null for nlmsg_find_attr()

On Thu, Jan 26, 2023 at 04:55:55PM +0300, Natalia Petrova wrote:

The result of nlmsg_find_attr() 'br_spec' is dereferenced in nla_for_each_nested(), but it can take null value in nla_find() function, which will result in an error.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 51616018dd1b ("i40e: Add support for getlink, setlink ndo ops") Signed-off-by: Natalia Petrova n.petrova@fintech.ru

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drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++ 1 file changed, 2 insertions(+)

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This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.

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