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apparmor: fail unpack if profile mode is unknown

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Profile unpack should fail if the profile mode is not a mode that the
kernel understands.

Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen 2019-12-19 15:55:39 -08:00
parent 3ed4aaa94f
commit f05841a940
1 changed files with 4 additions and 0 deletions
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4
security/apparmor/policy_unpack.c
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@ -748,10 +748,14 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
goto fail;
if (tmp == PACKED_MODE_COMPLAIN || (e->version & FORCE_COMPLAIN_FLAG))
profile->mode = APPARMOR_COMPLAIN;
else if (tmp == PACKED_MODE_ENFORCE)
profile->mode = APPARMOR_ENFORCE;
else if (tmp == PACKED_MODE_KILL)
profile->mode = APPARMOR_KILL;
else if (tmp == PACKED_MODE_UNCONFINED)
profile->mode = APPARMOR_UNCONFINED;
else
goto fail;
if (!unpack_u32(e, &tmp, NULL))
goto fail;
if (tmp)