From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f77.google.com (mail-oa1-f77.google.com [209.85.160.77]) (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 1E1C0264614 for ; Sat, 1 Aug 2026 00:12:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785543146; cv=none; b=XzhXA7jan1HSQ00pccpyTVQFue16BjKoZHNF/PMKabfcYi/iybZ9paIuvqhsW+3YL4bC9bYifbAI8SNy1Mra3ynCnq6J/ttOBRYffplqr1gYnD0xx3aoyzApj+rLc8rLAaXwDSc4Gke6MNvUBj3H1Q3LuBdLzycIUQaqMgq4DDc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785543146; c=relaxed/simple; bh=w4Gf0Oi8oLHLr8WMFMmtEBIFvNGvAtEbopMHFcRkT3Q=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=KJ/CzYFEzlYUTGY/Dm9N1zcLmkibErvEAZWn+XZlcW5fkCnOHfwzm8H0VcfeMRDMQKkEtm01gfsQoSmQKU04kHZ0ucvAQWBXiR2Aduai33XgA6kGC2nIT8PScQ1bJ9k01VD1tGUiS7kZO9uHC5kM6pPuVBUGADL4/0mQUYYdcMA= 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=209.85.160.77 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-oa1-f77.google.com with SMTP id 586e51a60fabf-44d0960fb5bso1214980fac.2 for ; Fri, 31 Jul 2026 17:12:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785543143; x=1786147943; 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=MXgOcXPNnQ3xzqWo+dwxHto1GQpPYlWGt2X6T3gWApQ=; b=SvaFps5arun1vYYy65CqPCfTjd8RWVA3ndNg6S8lPSk1BJjyq4u32CpzFEWnzrIuV0 w228cQ03Ik7pi6ygY9turox9U9nMqvf5Jw6cldGul3FtSuVD7kbXKvtW8ht09NV4TkAZ vkh6zkoisVj0+TR8ZmHWWwsISZOCjpO8A1caxi5rmPC/ICKYptj7R1jdBQUyCAww4A4X 9wqc+OHhzwh5rtYk/sZ7J5TxnqaPclPw7p4j8CkwflI0hq+o8GD6a1Nc0vXYxoLyX2oO UqdUXjHscxgocggdl33TSQIgxACwP0x+f0nuDPH3KM5rZYMBJeklra61QudMAqq00bDy 0xiA== X-Forwarded-Encrypted: i=1; AHgh+RqTZQWE2UKC6yahcdP/9W8gHjsnsHUajppvbgM1EBJ/wT87Y+lwczhGqpR5YVBRboAB+qa2Drs=@vger.kernel.org X-Gm-Message-State: AOJu0YwDFGsW2pdcYRIA7c5otiID73AsjFaAAkhzuPNQ65lZoDQXKmU0 OkPcgdFZLtFBoHhx6XwvlcUxO1iBPcYWQjJboZxGLV8AKHZhxKZS0ITupV6PCteEQNrF0UeQvZc Shxyx4cEMuwWuxAiyGeCMWZ/nCw/qVP3a8CvhzZCZeGPKBaRMzlYHPfuq2bk= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:c3ee:b0:496:11f1:f2b5 with SMTP id 5614622812f47-4af5e1b817bmr4405907b6e.10.1785543142970; Fri, 31 Jul 2026 17:12:22 -0700 (PDT) Date: Fri, 31 Jul 2026 17:12:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a6d39e6.f794c993.27aeb.0008.GAE@google.com> Subject: [syzbot] [wireless?] BUG: unable to handle kernel paging request in trace_event_raw_event_drv_net_setup_tc From: syzbot To: johannes@sipsolutions.net, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8ba098e6b6ff Merge tag 'v7.2-rc5-smb3-client-fixes' of git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10f84c9e580000 kernel config: https://syzkaller.appspot.com/x/.config?x=145fa60d73086782 dashboard link: https://syzkaller.appspot.com/bug?extid=f1ba58d6b55abd13239e compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/db1d2f27959e/disk-8ba098e6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2eacbf7835c3/vmlinux-8ba098e6.xz kernel image: https://storage.googleapis.com/syzbot-assets/de833d39bd28/bzImage-8ba098e6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f1ba58d6b55abd13239e@syzkaller.appspotmail.com BUG: unable to handle page fault for address: fffffffffffffc10 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD e997067 P4D e997067 PUD e999067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 15892 Comm: syz.5.2483 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:strnlen+0x4b/0x80 lib/string.c:414 Code: 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 0f b6 14 1a 38 ca 7f 04 84 d2 75 15 <80> 38 00 75 d9 4c 29 e0 48 83 c4 08 5b 5d 41 5c e9 40 87 07 00 48 RSP: 0018:ffffc900071ef120 EFLAGS: 00010246 RAX: fffffffffffffc10 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: fffffffffffffc10 RBP: fffffffffffffc20 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffc10 R13: ffff88801bcc3e00 R14: 0000000000000006 R15: 0000000000000010 FS: 00007faa1ab866c0(0000) GS:ffff888123dda000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffc10 CR3: 0000000025e0b000 CR4: 00000000003526f0 Call Trace: strnlen include/linux/fortify-string.h:183 [inline] __fortify_strlen include/linux/fortify-string.h:219 [inline] trace_event_get_offsets_drv_net_setup_tc net/mac80211/trace.h:2539 [inline] do_trace_event_raw_event_drv_net_setup_tc net/mac80211/trace.h:2539 [inline] trace_event_raw_event_drv_net_setup_tc+0x100/0x5d0 net/mac80211/trace.h:2539 __do_trace_drv_net_setup_tc net/mac80211/trace.h:2539 [inline] trace_drv_net_setup_tc net/mac80211/trace.h:2539 [inline] drv_net_setup_tc net/mac80211/driver-ops.h:1706 [inline] ieee80211_netdev_setup_tc+0x2c6/0x3e0 net/mac80211/iface.c:938 tcf_block_offload_cmd.isra.0+0x1c4/0x310 net/sched/cls_api.c:838 tcf_block_offload_bind net/sched/cls_api.c:875 [inline] tcf_block_get_ext+0x7ed/0x1950 net/sched/cls_api.c:1498 tcf_block_get+0xa8/0x100 net/sched/cls_api.c:1543 hfsc_init_qdisc+0x154/0x420 net/sched/sch_hfsc.c:1413 qdisc_create+0x47b/0x1060 net/sched/sch_api.c:1337 __tc_modify_qdisc net/sched/sch_api.c:1771 [inline] tc_modify_qdisc+0xdcf/0x2120 net/sched/sch_api.c:1835 rtnetlink_rcv_msg+0x3c9/0xe90 net/core/rtnetlink.c:7085 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faa19d9e019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faa1ab86028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007faa1a025fa0 RCX: 00007faa19d9e019 RDX: 0000000000000000 RSI: 00002000000008c0 RDI: 0000000000000004 RBP: 00007faa19e3500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faa1a026038 R14: 00007faa1a025fa0 R15: 00007ffd20378ea8 Modules linked in: CR2: fffffffffffffc10 ---[ end trace 0000000000000000 ]--- RIP: 0010:strnlen+0x4b/0x80 lib/string.c:414 Code: 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 0f b6 14 1a 38 ca 7f 04 84 d2 75 15 <80> 38 00 75 d9 4c 29 e0 48 83 c4 08 5b 5d 41 5c e9 40 87 07 00 48 RSP: 0018:ffffc900071ef120 EFLAGS: 00010246 RAX: fffffffffffffc10 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: fffffffffffffc10 RBP: fffffffffffffc20 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffc10 R13: ffff88801bcc3e00 R14: 0000000000000006 R15: 0000000000000010 FS: 00007faa1ab866c0(0000) GS:ffff888123dda000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffc10 CR3: 0000000025e0b000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 49 89 fc mov %rdi,%r12 3: 48 89 f8 mov %rdi,%rax 6: eb 09 jmp 0x11 8: 48 83 c0 01 add $0x1,%rax c: 48 39 e8 cmp %rbp,%rax f: 74 1e je 0x2f 11: 48 89 c2 mov %rax,%rdx 14: 48 89 c1 mov %rax,%rcx 17: 48 c1 ea 03 shr $0x3,%rdx 1b: 83 e1 07 and $0x7,%ecx 1e: 0f b6 14 1a movzbl (%rdx,%rbx,1),%edx 22: 38 ca cmp %cl,%dl 24: 7f 04 jg 0x2a 26: 84 d2 test %dl,%dl 28: 75 15 jne 0x3f * 2a: 80 38 00 cmpb $0x0,(%rax) <-- trapping instruction 2d: 75 d9 jne 0x8 2f: 4c 29 e0 sub %r12,%rax 32: 48 83 c4 08 add $0x8,%rsp 36: 5b pop %rbx 37: 5d pop %rbp 38: 41 5c pop %r12 3a: e9 40 87 07 00 jmp 0x7877f 3f: 48 rex.W --- 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