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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2021-06-07 16:21:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-19 10:44:49 +0300 |
| commit | 57f7ed25bd1672a51c2d9cd15c9714c0dfc56062 (patch) | |
| tree | 880e7a81709b96ad064b2191ba19723b5c5379ec /net/xfrm | |
| parent | a5f8862967c453aff5b32883d1b6be8e2009e4f0 (diff) | |
| download | linux-57f7ed25bd1672a51c2d9cd15c9714c0dfc56062.tar.xz | |
xfrm: Fix error reporting in xfrm_state_construct.
[ Upstream commit 6fd06963fa74197103cdbb4b494763127b3f2f34 ]
When memory allocation for XFRMA_ENCAP or XFRMA_COADDR fails,
the error will not be reported because the -ENOMEM assignment
to the err variable is overwritten before. Fix this by moving
these two in front of the function so that memory allocation
failures will be reported.
Reported-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_user.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index d0c32a8fcc4a..45f86a97eaf2 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -580,6 +580,20 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, copy_from_user_state(x, p); + if (attrs[XFRMA_ENCAP]) { + x->encap = kmemdup(nla_data(attrs[XFRMA_ENCAP]), + sizeof(*x->encap), GFP_KERNEL); + if (x->encap == NULL) + goto error; + } + + if (attrs[XFRMA_COADDR]) { + x->coaddr = kmemdup(nla_data(attrs[XFRMA_COADDR]), + sizeof(*x->coaddr), GFP_KERNEL); + if (x->coaddr == NULL) + goto error; + } + if (attrs[XFRMA_SA_EXTRA_FLAGS]) x->props.extra_flags = nla_get_u32(attrs[XFRMA_SA_EXTRA_FLAGS]); @@ -600,23 +614,9 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, attrs[XFRMA_ALG_COMP]))) goto error; - if (attrs[XFRMA_ENCAP]) { - x->encap = kmemdup(nla_data(attrs[XFRMA_ENCAP]), - sizeof(*x->encap), GFP_KERNEL); - if (x->encap == NULL) - goto error; - } - if (attrs[XFRMA_TFCPAD]) x->tfcpad = nla_get_u32(attrs[XFRMA_TFCPAD]); - if (attrs[XFRMA_COADDR]) { - x->coaddr = kmemdup(nla_data(attrs[XFRMA_COADDR]), - sizeof(*x->coaddr), GFP_KERNEL); - if (x->coaddr == NULL) - goto error; - } - xfrm_mark_get(attrs, &x->mark); xfrm_smark_init(attrs, &x->props.smark); |