From: John Johansen Date: Sat, 7 May 2022 01:57:12 +0000 (-0700) Subject: apparmor: Fix abi check to include v8 abi X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1b5a6198f5a9d0aa5497da0dc4bcd4fc166ee516;p=linux.git apparmor: Fix abi check to include v8 abi The v8 abi is supported by the kernel but the userspace supported version check does not allow for it. This was missed when v8 was added due to a bug in the userspace compiler which was setting an older abi version for v8 encoding (which is forward compatible except on the network encoding). However it is possible to detect the network encoding by checking the policydb network support which the code does. The end result was that missing the abi flag worked until userspace was fixed and began correctly checking for the v8 abi version. Fixes: 56974a6fcfef ("apparmor: add base infastructure for socket mediation") Signed-off-by: John Johansen --- diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 3ea591d31be7e..0203e43460b66 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -1183,7 +1183,7 @@ static int verify_header(struct aa_ext *e, int required, const char **ns) * if not specified use previous version * Mask off everything that is not kernel abi version */ - if (VERSION_LT(e->version, v5) || VERSION_GT(e->version, v7)) { + if (VERSION_LT(e->version, v5) || VERSION_GT(e->version, v8)) { audit_iface(NULL, NULL, NULL, "unsupported interface version", e, error); return error;