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{ "id": 2223412, "url": "http://patchwork.ozlabs.org/api/covers/2223412/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/20260415094014.88977-1-mehmet.basaran@canonical.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/projects/15/?format=api", "name": "Ubuntu Kernel", "link_name": "ubuntu-kernel", "list_id": "kernel-team.lists.ubuntu.com", "list_email": "kernel-team@lists.ubuntu.com", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260415094014.88977-1-mehmet.basaran@canonical.com>", "list_archive_url": null, "date": "2026-04-15T09:40:13", "name": "[REGRESSION,N,0/1] Fix Upstream stable v6.6.122, v6.12.67, v6.12.68", "submitter": { "id": 89305, "url": "http://patchwork.ozlabs.org/api/people/89305/?format=api", "name": "Mehmet Basaran", "email": "mehmet.basaran@canonical.com" }, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/20260415094014.88977-1-mehmet.basaran@canonical.com/mbox/", "series": [ { "id": 499950, "url": "http://patchwork.ozlabs.org/api/series/499950/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=499950", "date": "2026-04-15T09:40:13", "name": "Fix Upstream stable v6.6.122, v6.12.67, v6.12.68", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499950/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2223412/comments/", "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=EypBhq7p;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "== Justification ==\n\nImpact:\nThe upstream stable v6.6.122, v6.12.67, v6.12.68 update included a \nchange to __ip6_tnl_rcv() which does not work for kernels <v6.13 \n(this might be important if the following is ever picked):\n\nf842901be344 \"ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()\"\n\nAbove patch replaces pskb_inet_may_pull() with skb_vlan_inet_prepare().\nThe problem is that around v6.13 there was\n\n\"net: tunnel: make skb_vlan_inet_prepare() return drop reasons\"\n\nwhich changes return values of skb_vlan_inet_prepare(). Before a non\nzero return code meant success while after it is the opposite.\n\nFix:\nInstead of pulling another dependency the proposed fix changes usage to\nother callers of skb_vlan_inet_prepare() in v6.8 \n(bareudp.c/geneve.c/vxlan_core.c).\n\nTestcase:\nRunning the ubuntu_kselftests_net:net:l2_tos_ttl_inherit.sh fail (timeout)\nwithout the fix. After applying the test passes again.\n\nMehmet Basaran (1):\n UBUNTU: SAUCE: Fix skb_vlan_inet_prepare() usage\n\n net/ipv6/ip6_tunnel.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)" }