From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5169710F0 for ; Wed, 29 Nov 2023 03:06:30 -0800 (PST) Received: by mail-pf1-f200.google.com with SMTP id d2e1a72fcca58-6cdce6455c5so1160983b3a.2 for ; Wed, 29 Nov 2023 03:06:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701255990; x=1701860790; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=FNcMZRfK5zgSkYRxKm3IWkMVA602J70U7t3gF/kWgv4=; b=QtZCpPm6TIX3BfngIsLBbGV0XH37SdpUyvplRNKfKLiXqktiWfEK7o3E2FjJDUo3ZJ FItJ9xRCBMLiAF8422VgflLRlsT+OKxFimmbusoN//COsngND0vz5843BfIE1+LnP8mQ c4yG5Mj4MFXO+5GY4qpJCielYSWlqIUd0pIvLPUQrrCqvkbAWqOHC+7+eEtdR6WTLmQn X2nyaZ7dXVVArWIFDrNTuJaq2PIyPZj0bd8jlYFTdbGLDi7Hf5+v9WtWqmFn0XFbbAf9 dLopGV7UR/Cy678zwIaljsfTEzsApzuzOQvIsZsDoF233vwaJMYUtJ2we+Prl6dOW02B mt0w== X-Gm-Message-State: AOJu0YyMoj+okNmbrOoXGRIbhe8fhjQKsA+b6HnGg9E0Xk5bkL45bm2s xj+PnfzmNIIzB7OOCpK+HVh/0yBFmafQN0wYPztUbOejipbN X-Google-Smtp-Source: AGHT+IHLfffse4jQx6iaFyv9C9sBzR07d1OYb6/VHpbXbAfl3ZqbHaYlCF1JQUmbinqk2/Pj5vL7v1xqWzSgyXkJlzUltP9FsDHe Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6a00:3929:b0:6c6:aaa4:5da8 with SMTP id fh41-20020a056a00392900b006c6aaa45da8mr5057045pfb.3.1701255989866; Wed, 29 Nov 2023 03:06:29 -0800 (PST) Date: Wed, 29 Nov 2023 03:06:29 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f2b6b0060b488674@google.com> Subject: [syzbot] [net?] general protection fault in page_pool_unlist From: syzbot To: almasrymina@google.com, davem@davemloft.net, edumazet@google.com, hawk@kernel.org, ilias.apalodimas@linaro.org, kuba@kernel.org, linux-kernel@vger.kernel.org, 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: a379972973a8 Merge branch 'net-page_pool-add-netlink-based.. git tree: net-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=1421b7ece80000 kernel config: https://syzkaller.appspot.com/x/.config?x=abf6d5a82dab01fe dashboard link: https://syzkaller.appspot.com/bug?extid=f9f8efb58a4db2ca98d0 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117d9e64e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16826ec4e80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fc5f22d6faa1/disk-a3799729.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e535e5c28162/vmlinux-a3799729.xz kernel image: https://storage.googleapis.com/syzbot-assets/32eefbbcadbb/bzImage-a3799729.xz The issue was bisected to: commit 083772c9f972dcc248913b52a0dec1025baa1e16 Author: Jakub Kicinski Date: Sun Nov 26 23:07:30 2023 +0000 net: page_pool: record pools per netdev bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10c72162e80000 final oops: https://syzkaller.appspot.com/x/report.txt?x=12c72162e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=14c72162e80000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f9f8efb58a4db2ca98d0@syzkaller.appspotmail.com Fixes: 083772c9f972 ("net: page_pool: record pools per netdev") Illegal XDP return value 4294946546 on prog (id 2) dev N/A, expect packet loss! general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5064 Comm: syz-executor391 Not tainted 6.7.0-rc2-syzkaller-00533-ga379972973a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__hlist_del include/linux/list.h:988 [inline] RIP: 0010:hlist_del include/linux/list.h:1002 [inline] RIP: 0010:page_pool_unlist+0xd1/0x170 net/core/page_pool_user.c:342 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 90 00 00 00 4c 8b a3 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 68 48 85 ed 49 89 2c 24 74 24 e8 1b ca 07 f9 48 8d RSP: 0018:ffffc900039ff768 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88814ae02000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88814ae026f0 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d57fdc R10: ffffffff8eabfee3 R11: ffffffff8aa0008b R12: 0000000000000000 R13: ffff88814ae02000 R14: dffffc0000000000 R15: 0000000000000001 FS: 000055555717a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002555398 CR3: 0000000025044000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __page_pool_destroy net/core/page_pool.c:851 [inline] page_pool_release+0x507/0x6b0 net/core/page_pool.c:891 page_pool_destroy+0x1ac/0x4c0 net/core/page_pool.c:956 xdp_test_run_teardown net/bpf/test_run.c:216 [inline] bpf_test_run_xdp_live+0x1578/0x1af0 net/bpf/test_run.c:388 bpf_prog_test_run_xdp+0x827/0x1530 net/bpf/test_run.c:1254 bpf_prog_test_run kernel/bpf/syscall.c:4041 [inline] __sys_bpf+0x11bf/0x4920 kernel/bpf/syscall.c:5402 __do_sys_bpf kernel/bpf/syscall.c:5488 [inline] __se_sys_bpf kernel/bpf/syscall.c:5486 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5486 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f616195a4a9 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe858ce5c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ffe858ce798 RCX: 00007f616195a4a9 RDX: 0000000000000048 RSI: 0000000020000340 RDI: 000000000000000a RBP: 00007f61619cd610 R08: 0000000000000000 R09: 00007ffe858ce798 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe858ce788 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__hlist_del include/linux/list.h:988 [inline] RIP: 0010:hlist_del include/linux/list.h:1002 [inline] RIP: 0010:page_pool_unlist+0xd1/0x170 net/core/page_pool_user.c:342 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 90 00 00 00 4c 8b a3 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 68 48 85 ed 49 89 2c 24 74 24 e8 1b ca 07 f9 48 8d RSP: 0018:ffffc900039ff768 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88814ae02000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88814ae026f0 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d57fdc R10: ffffffff8eabfee3 R11: ffffffff8aa0008b R12: 0000000000000000 R13: ffff88814ae02000 R14: dffffc0000000000 R15: 0000000000000001 FS: 000055555717a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2640df1b10 CR3: 0000000025044000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df 48 89 fisttps -0x77(%rax) 3: fa cli 4: 48 c1 ea 03 shr $0x3,%rdx 8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) c: 0f 85 90 00 00 00 jne 0xa2 12: 4c 8b a3 f0 06 00 00 mov 0x6f0(%rbx),%r12 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 75 68 jne 0x98 30: 48 85 ed test %rbp,%rbp 33: 49 89 2c 24 mov %rbp,(%r12) 37: 74 24 je 0x5d 39: e8 1b ca 07 f9 call 0xf907ca59 3e: 48 rex.W 3f: 8d .byte 0x8d --- 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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