From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AFF6F37E5DF for ; Fri, 9 Oct 2026 19:27:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791574061; cv=none; b=om/nKEMyZEBhRJKuS1HBd6eZayeyRuDOrGHP5JIm14Rid31Ykd20UXikXFjaCF2tixKOK0wsQupd4iCKBP+BeudNvHtMwnTXui11VW90NpZhYpHE0AAl4BV/tzInFB9e8TXbjdoYXec5mADQIChfOdjbkAqR/3n6iwm6e85VhMs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791574061; c=relaxed/simple; bh=L8gg4Kq6W+Ym35JCXkVX26+OXcaYYuFc4zMgWgsCAEc=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=L/4ew6GnnOPsJgcsAqtEM7poXH5B1qYyRJf5CpSrJQsj20OWGGhEUA0PPyXDrVpDdUMit0lIhxvqsCI3lHTzIw4vtZG8G4/blDbznvLb1i3PyTARDEYzxCM8NpxSbfRt7bBQ7CJ3s41/o6SQqiIj1GO7C6Upi8zc35Bo3ujAQdE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-4a41f46d629so251963b6e.3 for ; Fri, 09 Oct 2026 12:27:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791574055; x=1792178855; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=AEDJMcpb2PLOS4ggAtHpAOc7GocOBl+0xfRC3Z6ZkJI=; b=23Bf0J9M9AVO81hHNOqaNLZQsiIrAYJ+k3TG4BUa67VWbY4b4OzRrjNP0cqabBFwS5 KB7IiaWC4r3DTJc0w9zlEgZaXtKXfzd3dBPl9sB3Oj+s9pu8wu6dKmIv9cCBzCioV/gu YImWsS9ZAgnFvLHeDbKvuPJ/p9Z4QoCo0GiVgVlt+cDUQR5WWMWiyFuF5kbOK3iftFno /IZKXddNtwarAi2QeOSpaO4YCYm9hn9kjsISmt3IDs0pMDlMEKoafJ2No/USJJGMc3gK bwiUWodDwTROWKBLDFQcQt4K2q678uBo9ohZgvY0MXRdFwaYWHlolpzYSVYwRXWo7dYv jnCA== X-Forwarded-Encrypted: i=1; AKwUvBwPzW40+s86Og2ZKzN0AC4sHvhwEeRUKLMC+hmg2d+VQ88yqPE3XShPl6wSWG6Y7iuESH5MOlOFyTJ71V8=@vger.kernel.org X-Gm-Message-State: AFuF++k56HDD/2N6Y6Br6oj+j6xwg+aLIz2KO6LJ4kZcABCoCjrTPD2I RiOWKXjuaemNAu37oY7OZFfC+cNxk9Jt38GuBFBWxp9jmY14cMYW26rUoK5DyL5QJyqlJOppDSj 9t6qWRUFfaQHx6nWu7jcOTqw1hykX/xyyL5g+S+vp2/1EGb3DZbwj1K863/I= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:19a9:b0:4b9:e65b:8c33 with SMTP id 5614622812f47-50c54177b94mr2989175b6e.33.1791574055178; Fri, 09 Oct 2026 12:27:35 -0700 (PDT) Date: Fri, 09 Oct 2026 12:27:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ac94027.70ed5d86.2ac85.0078.GAE@google.com> Subject: [syzbot] [sctp?] kernel panic: corrupted stack end in sctp_setsockopt From: syzbot To: davem@davemloft.net, edumazet@kernel.org, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, lucien.xin@gmail.com, marcelo.leitner@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 71c3e5409eef Merge remote-tracking branch 'will/for-next/p.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=11a360a5580000 kernel config: https://syzkaller.appspot.com/x/.config?x=42bd821301b42742 dashboard link: https://syzkaller.appspot.com/bug?extid=107afda010b4507a5c80 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7596ece97a32/disk-71c3e540.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4d2c36351098/vmlinux-71c3e540.xz kernel image: https://storage.googleapis.com/syzbot-assets/396ce0b85b3c/Image-71c3e540.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+107afda010b4507a5c80@syzkaller.appspotmail.com Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 UID: 0 PID: 10678 Comm: syz.6.1395 Tainted: G M L syzkaller #0 PREEMPT Tainted: [M]=MACHINE_CHECK, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0x30/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 vpanic+0x594/0xaf8 kernel/panic.c:651 vpanic+0x0/0xaf8 kernel/panic.c:788 schedule_debug kernel/sched/core.c:6103 [inline] __schedule+0x18a0/0x2b00 kernel/sched/core.c:7133 __schedule_loop kernel/sched/core.c:7361 [inline] schedule+0x13c/0x20c kernel/sched/core.c:7376 __lock_sock+0x124/0x260 net/core/sock.c:3245 lock_sock_nested+0xd4/0x110 net/core/sock.c:3858 lock_sock include/net/sock.h:1713 [inline] sctp_setsockopt+0x1d4/0xe70 net/sctp/socket.c:4609 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:4050 do_sock_setsockopt+0x1f0/0x330 net/socket.c:2397 __sys_setsockopt+0x104/0x170 net/socket.c:2422 __do_sys_setsockopt net/socket.c:2428 [inline] __se_sys_setsockopt net/socket.c:2425 [inline] __arm64_sys_setsockopt+0xc8/0xe4 net/socket.c:2425 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 Kernel Offset: disabled CPU features: 0x0,50000000,00f00020,9c080a02,a84ff6a7 Memory Limit: none Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup