Path: csiph.com!fu-berlin.de!bofh.it!news.nic.it!robomod From: Andrey Konovalov Newsgroups: linux.kernel Subject: net/can: trying to register non-static key in can_rx_register Date: Thu, 08 Jun 2017 17:20:03 +0200 Message-ID: Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=Ot7ggTJfRfvLAicXSqiw/u5JbXpQ7e8XmJEo87nL7Rw=; b=WTiWEH7Wy0vwV5msV9pjbLkUoTZaIFUJ09RsNk+gQJkJkwOE+QBD17cAspXIW+MuaL T/Oks04CXcH4ypFQ5H+YCxFpfpv3UxdpapUivlnGz/drLyiEybsApi/Twgxmi/u8bBBi DNBEt8/Tey0BftHVMtXa5mJKnEvQ1FHPfC35J993GFFTpGrJpYkNwkNvZRb8+NIrDy3p ZX3O+0slQvxxOt08tKYAzSJdLES4Eo8nl40pOxUW6Yt1LsQSeiKWQYpj8Ym3pTWHAIIA QtoAcXt7im2i2Af5OQDvFuo/68jIprW/Gt1AyMCc1EFeNd6GfX9j/QRbTkcK0g0SAYZg V6VA== X-Google-Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=Ot7ggTJfRfvLAicXSqiw/u5JbXpQ7e8XmJEo87nL7Rw=; b=Yy8bZAsfn5nhIGDfzLvKpLH2Ch+ufP1ofmdND8loovUC3t6LsjGNvzZijGLPDjYJt7 BkfqfBshkAyQW48XSzbcpR8dO1NPclI7PnqUB4cpdmM7VZKObHBXA6FwuOH4inQhhoeW dYzXOiihx3fiPtbfaXvyArj8C7NORpIwvCY2kxVv3jIudqSMLcpi01Mn2VFJLoI2cyaq yHwZY9ZMQPXn8gs9f8f7SQaeFqcbahu1pqAVHP7gLdwaDXbGVdNahfdwr7N1StFuQJNo hJ4A0efc9IvcDMjjt55Or/zFXIWpIeA8K6YJPWDwRuQIqsWO8AYXObqpvMT7DnaGhcmX mCPA== X-Gm-Message-State: AODbwcA98hocF14UggXVMODpst4SAdyhhkITTeIukYWeR+ic/6KBXi1a QuOg3dnOYb8fyprmUrGQHfBJeqbI6Tdy X-Received: by 10.37.179.206 with SMTP id x14mr11527355ybf.105.1496934982513; Thu, 08 Jun 2017 08:16:22 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 35 Organization: linux.* mail to news gateway X-Original-Cc: Dmitry Vyukov , Kostya Serebryany , syzkaller X-Original-Date: Thu, 8 Jun 2017 17:16:22 +0200 X-Original-Message-ID: X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1661370 Hi, I've got the following error report while fuzzing the kernel with syzkaller. On commit b29794ec95c6856b316c2295904208bf11ffddd9 (4.12-rc4+). INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 2 PID: 17404 Comm: syz-executor1 Not tainted 4.12.0-rc4+ #15 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x292/0x395 lib/dump_stack.c:52 register_lock_class+0x717/0x1aa0 kernel/locking/lockdep.c:755 __lock_acquire+0x269/0x3690 kernel/locking/lockdep.c:3255 ? 0xffffffffa0000000 lock_acquire+0x22d/0x560 kernel/locking/lockdep.c:3855 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:299 [inline] can_rx_register+0x4f3/0x700 net/can/af_can.c:483 raw_enable_filters+0xd7/0x1e0 net/can/raw.c:192 raw_enable_allfilters+0x8a/0x1e0 net/can/raw.c:258 raw_bind+0x244/0x830 net/can/raw.c:435 SYSC_bind+0x20e/0x4c0 net/socket.c:1422 SyS_bind+0x29/0x30 net/socket.c:1408 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x446389 RSP: 002b:00007fa1efda2c08 EFLAGS: 00000292 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 0000000000000220 RCX: 0000000000446389 RDX: 0000000000000060 RSI: 0000000020001fa0 RDI: 0000000000000017 RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000017 R13: 0000000000003770 R14: 00000000006e4830 R15: 0000000000c13000