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(parent: 32fecc7) | patch
Smack: prevent underflow in smk_set_cipso()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 23 Jul 2020 15:23:05 +0000 (18:23 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Aug 2020 06:24:01 +0000 (08:24 +0200)
commit9ef3fc00dd90ac22decc6b9065c3c90f412f62e7
treee300320060081d35a3c04f54e836e1a663589d94tree
parent32fecc76dfdda9f134de11c3f2df3338a6d3abf6commit | diff
Smack: prevent underflow in smk_set_cipso()

[ Upstream commit 42a2df3e829f3c5562090391b33714b2e2e5ad4a ]

We have an upper bound on "maplevel" but forgot to check for negative
values.

Fixes: e114e473771c ("Smack: Simplified Mandatory Access Control Kernel")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
security/smack/smackfs.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)