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author | 2015-10-19 15:57:07 +0200 | |
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committer | 2015-11-06 15:23:36 +0000 | |
commit | ede19ea0c47fb23f3fc779833d1e57cf76f3371e (patch) | |
tree | 47d6fae2283c54def1871aaf2a73828ac68b1b34 /meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch | |
parent | 1cd8ab18abca96e4ee108f80225058d875b28347 (diff) |
kernel: smack security backport from kernel 4
Here is the backport of all patches relating to smack support
on kernel side. For more details, see file:
meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/README
Please note that patches are applied only if "smack" is in the
ditro features. Here are the 2 lines to add in the local.conf
OVERRIDES .= ":smack"
DISTRO_FEATURES_append = " smack"
Change-Id: I147a3532aec531f977d6ec34c576261835711f1e
Signed-off-by: Yannick GICQUEL <yannick.gicquel@iot.bzh>
Signed-off-by: José Bollo <jose.bollo@iot.bzh>
Diffstat (limited to 'meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch')
-rw-r--r-- | meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch new file mode 100644 index 0000000..6df1e69 --- /dev/null +++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch @@ -0,0 +1,40 @@ +From 8f134ed7adfba222fc1ea182accc95e7fb8e2be3 Mon Sep 17 00:00:00 2001 +From: Zbigniew Jasinski <z.jasinski@samsung.com> +Date: Mon, 29 Dec 2014 15:34:58 +0100 +Subject: [PATCH 48/54] smack: Fix a bidirectional UDS connect check typo + +The 54e70ec5eb090193b03e69d551fa6771a5a217c4 commit introduced a +bidirectional check that should have checked for mutual WRITE access +between two labels. Due to a typo subject's OUT label is checked with +object's OUT. Should be OUT to IN. + +Signed-off-by: Zbigniew Jasinski <z.jasinski@samsung.com> +--- + security/smack/smack_lsm.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c +index bc43227..c6f8664 100644 +--- a/security/smack/smack_lsm.c ++++ b/security/smack/smack_lsm.c +@@ -3313,7 +3313,7 @@ static int smack_unix_stream_connect(struct sock *sock, + + if (!smack_privileged(CAP_MAC_OVERRIDE)) { + skp = ssp->smk_out; +- okp = osp->smk_out; ++ okp = osp->smk_in; + #ifdef CONFIG_AUDIT + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); + smk_ad_setfield_u_net_sk(&ad, other); +@@ -3321,6 +3321,8 @@ static int smack_unix_stream_connect(struct sock *sock, + rc = smk_access(skp, okp, MAY_WRITE, &ad); + rc = smk_bu_note("UDS connect", skp, okp, MAY_WRITE, rc); + if (rc == 0) { ++ okp = osp->smk_out; ++ skp = ssp->smk_in; + rc = smk_access(okp, skp, MAY_WRITE, NULL); + rc = smk_bu_note("UDS connect", okp, skp, + MAY_WRITE, rc); +-- +2.1.4 + |