general protection fault in rb

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in rb_next (3) kernel	syz	done	done	1	1770d	1768d	12/26	fixed on 2019/08/27 17:15
upstream	general protection fault in rb_next (2) kernel				2	1929d	1936d	0/26	closed as dup on 2018/12/31 07:15

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.18.0-rc3+ #56 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rb_next+0xd7/0x140 lib/rbtree.c:541 Code: 49 89 dc 4c 89 eb 48 83 e3 fc 48 89 d8 75 c8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 48 89 d0 48 8d 78 10 48 89 fa 48 c1 ea 03 <80> 3c 1a 00 75 1a 48 8b 50 10 48 85 d2 75 e3 48 83 c4 08 5b 41 5c RSP: 0018:ffff8801d9af7ae0 EFLAGS: 00010007 RAX: 23b1e8c689c389ff RBX: dffffc0000000000 RCX: ffffffff8792d801 RDX: 04763d18d1387141 RSI: ffffffff8792d890 RDI: 23b1e8c689c38a0f RBP: ffff8801d9af7b08 R08: ffff8801d9ae8380 R09: fffffbfff156f2e9 R10: fffffbfff156f2e9 R11: ffffffff8ab7974b R12: ffff8801daf26560 R13: ffff8801ca0878c1 R14: dffffc0000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f80ca03ddb8 CR3: 00000001a2003000 CR4: 00000000001406e0 DR0: 00000000200001c0 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: timerqueue_del+0xd8/0x150 lib/timerqueue.c:83 __remove_hrtimer+0xa8/0x1b0 kernel/time/hrtimer.c:984 remove_hrtimer kernel/time/hrtimer.c:1023 [inline] hrtimer_try_to_cancel+0x2b8/0x670 kernel/time/hrtimer.c:1150 hrtimer_cancel+0x20/0x40 kernel/time/hrtimer.c:1170 tick_nohz_restart kernel/time/tick-sched.c:625 [inline] tick_nohz_restart_sched_tick kernel/time/tick-sched.c:841 [inline] __tick_nohz_idle_restart_tick+0xe5/0x3c0 kernel/time/tick-sched.c:1115 tick_nohz_idle_exit+0x21f/0x290 kernel/time/tick-sched.c:1156 do_idle+0x167/0x570 kernel/sched/idle.c:275 cpu_startup_entry+0x10c/0x120 kernel/sched/idle.c:368 start_secondary+0x433/0x5d0 arch/x86/kernel/smpboot.c:265 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:242 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 0097653b69becc82 ]--- RIP: 0010:rb_next+0xd7/0x140 lib/rbtree.c:541 Code: 49 89 dc 4c 89 eb 48 83 e3 fc 48 89 d8 75 c8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 48 89 d0 48 8d 78 10 48 89 fa 48 c1 ea 03 <80> 3c 1a 00 75 1a 48 8b 50 10 48 85 d2 75 e3 48 83 c4 08 5b 41 5c RSP: 0018:ffff8801d9af7ae0 EFLAGS: 00010007 RAX: 23b1e8c689c389ff RBX: dffffc0000000000 RCX: ffffffff8792d801 RDX: 04763d18d1387141 RSI: ffffffff8792d890 RDI: 23b1e8c689c38a0f RBP: ffff8801d9af7b08 R08: ffff8801d9ae8380 R09: fffffbfff156f2e9 R10: fffffbfff156f2e9 R11: ffffffff8ab7974b R12: ffff8801daf26560 R13: ffff8801ca0878c1 R14: dffffc0000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f80ca03ddb8 CR3: 00000001a2003000 CR4: 00000000001406e0 DR0: 00000000200001c0 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600