From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8043CA for ; Tue, 12 Dec 2023 05:32:34 -0800 (PST) Received: by mail-oa1-f72.google.com with SMTP id 586e51a60fabf-1fb2b95e667so10675658fac.3 for ; Tue, 12 Dec 2023 05:32:34 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702387954; x=1702992754; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=PiUMOSfB7TGElnVi94lRD1/E9g74PJg+G3h2QqiiwOI=; b=UmlEQKs9npTs3/KkeKj5XWSk0oKQ76XnLAXCThh7TdOK5QakuAQL6KOP4GgSY4HZ2z Yhmi8KfXgME68ub/JBrZHI5SHHlgYMiBLPMt/TyNYGUfAG0loL9H8pcBYWU8JgYWPt1n U91LoHs9KJsJd222BjLPcj3PbkOrlrMmyIyF4JWbN6FCUzIZ0U0IxMIZzXZXhegovhv0 Q8alSIqi9bfRj9r4iCW4rW35QWaB9uhN3hlHPXSxxRMkrh5optih+MbN2vWXp9tz21/8 sfQIwgaHUXdk4XhBqfiONPXqzrXP+BCVh2BgEwGW0RGOGDOSoEYUr+2nCZMMq3u9zdBZ VRqg== 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following issue on: HEAD commit: 36b0bdb6d330 Merge branch 'net-selftests-unique-namespace' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1317a8b6e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=c8b9f7eef8021c3a dashboard link: https://syzkaller.appspot.com/bug?extid=caa85c9208da01314296 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2203b492b321/disk-36b0bdb6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/94047f2e6d6b/vmlinux-36b0bdb6.xz kernel image: https://storage.googleapis.com/syzbot-assets/1a4bb64744b6/bzImage-36b0bdb6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+caa85c9208da01314296@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 48 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990 Modules linked in: CPU: 0 PID: 48 Comm: kworker/u4:3 Not tainted 6.7.0-rc4-syzkaller-00835-g36b0bdb6d330 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:990 Code: 88 5d 01 00 00 be 04 00 00 00 48 c7 c7 c0 6a 80 92 e8 e0 57 6d 00 b8 01 00 00 00 87 05 d5 48 0f 11 85 c0 0f 85 39 01 00 00 90 <0f> 0b 90 48 81 fd c0 6f fb 8c 48 c7 c3 f8 2e 19 8f 74 5a 48 b8 00 RSP: 0018:ffffc90000007df0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff817121e0 RDX: fffffbfff2500d58 RSI: 0000000000000004 RDI: ffffffff92806ac0 RBP: ffffffff8cfb6fc0 R08: 0000000000000001 R09: fffffbfff2500d58 R10: 0000000000000003 R11: 0000000000000005 R12: 1ffffffff1981e40 R13: 0000000000000246 R14: ffffffff8cfb6fc0 R15: ffff8880b983d612 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005625fd4c8000 CR3: 000000000cd77000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_check_gp_start_stall kernel/rcu/tree_stall.h:953 [inline] rcu_core+0x4e1/0x1680 kernel/rcu/tree.c:2426 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__sanitizer_cov_trace_pc+0x34/0x60 kernel/kcov.c:207 Code: bc 03 00 65 8b 05 f4 26 7c 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00 00 <83> f8 02 75 20 48 8b 8a e0 15 00 00 8b 92 dc 15 00 00 48 8b 01 48 RSP: 0018:ffffc90000b8f928 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8880b9941a60 RCX: ffffffff817bd538 RDX: ffff8880136ebb80 RSI: ffffffff817bd512 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000006 R12: ffffed101732834d R13: 0000000000000001 R14: ffff8880b9941a68 R15: ffff8880b983d8c0 rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline] cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] csd_lock_wait kernel/smp.c:311 [inline] smp_call_function_many_cond+0x4e2/0x1550 kernel/smp.c:855 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2006 [inline] text_poke_bp_batch+0x22b/0x750 arch/x86/kernel/alternative.c:2216 text_poke_flush arch/x86/kernel/alternative.c:2407 [inline] text_poke_flush arch/x86/kernel/alternative.c:2404 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2414 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x1d7/0x400 kernel/jump_label.c:829 static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate mm/kfence/core.c:830 [inline] toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:822 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627 process_scheduled_works kernel/workqueue.c:2700 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 ---------------- Code disassembly (best guess): 0: bc 03 00 65 8b mov $0x8b650003,%esp 5: 05 f4 26 7c 7e add $0x7e7c26f4,%eax a: a9 00 01 ff 00 test $0xff0100,%eax f: 48 8b 34 24 mov (%rsp),%rsi 13: 74 0f je 0x24 15: f6 c4 01 test $0x1,%ah 18: 74 35 je 0x4f 1a: 8b 82 fc 15 00 00 mov 0x15fc(%rdx),%eax 20: 85 c0 test %eax,%eax 22: 74 2b je 0x4f 24: 8b 82 d8 15 00 00 mov 0x15d8(%rdx),%eax * 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction 2d: 75 20 jne 0x4f 2f: 48 8b 8a e0 15 00 00 mov 0x15e0(%rdx),%rcx 36: 8b 92 dc 15 00 00 mov 0x15dc(%rdx),%edx 3c: 48 8b 01 mov (%rcx),%rax 3f: 48 rex.W --- This report is generated by a bot. 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