netlink: 88 bytes leftover after parsing attributes in process `syz-executor.3'. kmemleak: 1112 new suspected memory leaks (see /sys/kernel/debug/kmemleak) watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:3:12794] Modules linked in: irq event stamp: 62833122 hardirqs last enabled at (62833121): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (62833121): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (62833122): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (500244): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (500203): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 12794 Comm: kworker/1:3 Not tainted 5.10.166 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events rtc_timer_do_work RIP: 0010:lock_is_held_type+0xd2/0x110 kernel/locking/lockdep.c:5609 Code: 31 c0 41 f6 47 22 03 0f 95 c0 45 31 c0 44 39 f0 41 0f 94 c0 b8 ff ff ff ff 65 0f c1 05 87 c4 20 7c 83 f8 01 75 27 ff 34 24 9d <48> 83 c4 08 44 89 c0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 a8 84 3e 00 RSP: 0018:ffff8880208dfb40 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 0000000000000003 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff84ff89a0 RDI: ffff8880494f22c8 RBP: ffffffff84ff89a0 R08: 0000000000000000 R09: ffffffff8567240f R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880494f19c0 R13: ffff8880494f2278 R14: 00000000ffffffff R15: ffff8880494f22c8 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d522000 CR3: 0000000004e26000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_is_held include/linux/lockdep.h:282 [inline] rcu_read_lock_sched_held+0x3e/0x80 kernel/rcu/update.c:123 trace_rtc_timer_dequeue include/trace/events/rtc.h:189 [inline] trace_rtc_timer_dequeue include/trace/events/rtc.h:189 [inline] rtc_timer_do_work+0x56f/0xe00 drivers/rtc/interface.c:924 process_one_work+0x9a9/0x1590 kernel/workqueue.c:2279 worker_thread+0x61d/0x1310 kernel/workqueue.c:2425 kthread+0x38f/0x470 kernel/kthread.c:313 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16884 Comm: syz-executor Not tainted 5.10.166 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lookup_object mm/kmemleak.c:386 [inline] RIP: 0010:scan_block+0xe5/0x3a0 mm/kmemleak.c:1266 Code: b8 9b 03 77 53 4c 39 2d 69 8a 45 05 76 4a 48 8b 05 a0 8b 45 05 48 85 c0 74 3e 48 8d 78 30 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 <0f> 85 df 01 00 00 48 8b 50 30 49 39 d5 73 49 48 8d 78 10 48 89 fa RSP: 0018:ffff88804991fba0 EFLAGS: 00000046 RAX: ffff88801ce74a88 RBX: ffff88807f966048 RCX: ffffffff816e9875 RDX: 1ffff110039ce957 RSI: 0000000000000008 RDI: ffff88801ce74ab8 RBP: ffff88807f966ff9 R08: 1ffff11001a70a9c R09: ffff88800d758007 R10: ffffed1001aeb000 R11: 0000000000000001 R12: ffff88800d758000 R13: ffffea0001b66048 R14: 0000000000000086 R15: dffffc0000000000 FS: 000055555661a400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b2b062000 CR3: 000000000d7e6000 CR4: 0000000000350ef0 Call Trace: scan_object mm/kmemleak.c:1348 [inline] scan_gray_list+0x1c5/0x3b0 mm/kmemleak.c:1386 kmemleak_scan+0x522/0x1210 mm/kmemleak.c:1495 kmemleak_write+0x55c/0x660 mm/kmemleak.c:1826 full_proxy_write+0x11d/0x190 fs/debugfs/file.c:236 vfs_write+0x29a/0xa30 fs/read_write.c:603 ksys_write+0x12d/0x260 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f6b2aafc5c3 Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 RSP: 002b:00007fffd0d474d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fffd0d47b18 RCX: 00007f6b2aafc5c3 RDX: 0000000000000004 RSI: 00007f6b2abb2ed9 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000c17 R09: 00007fffd0d8e080 R10: 00007fffd0d474a0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd0d475b0 R14: 0000000000000000 R15: 0000000000000003 hpet: Lost 2 RTC interrupts kmemleak: 981 new suspected memory leaks (see /sys/kernel/debug/kmemleak) ---------------- Code disassembly (best guess): 0: 31 c0 xor %eax,%eax 2: 41 f6 47 22 03 testb $0x3,0x22(%r15) 7: 0f 95 c0 setne %al a: 45 31 c0 xor %r8d,%r8d d: 44 39 f0 cmp %r14d,%eax 10: 41 0f 94 c0 sete %r8b 14: b8 ff ff ff ff mov $0xffffffff,%eax 19: 65 0f c1 05 87 c4 20 xadd %eax,%gs:0x7c20c487(%rip) # 0x7c20c4a8 20: 7c 21: 83 f8 01 cmp $0x1,%eax 24: 75 27 jne 0x4d 26: ff 34 24 pushq (%rsp) 29: 9d popfq * 2a: 48 83 c4 08 add $0x8,%rsp <-- trapping instruction 2e: 44 89 c0 mov %r8d,%eax 31: 5b pop %rbx 32: 5d pop %rbp 33: 41 5c pop %r12 35: 41 5d pop %r13 37: 41 5e pop %r14 39: 41 5f pop %r15 3b: e9 a8 84 3e 00 jmpq 0x3e84e8