TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
WARNING: kernel stack frame pointer at 00000000bb3846d2 in syz-executor0:8210 has bad value 000000005bba2813
unwind stack type:0 next_sp:000000005bba2813 mask:0x4 graph_idx:0
00000000d8b6c96b: ffff8801db1075b8 (0xffff8801db1075b8)
0000000084e4aa2a: ffffffff812d65cd (__save_stack_trace+0x7d/0xf0)
000000000b3dd292: 0000000000000000 ...
00000000a25055fb: ffff8801db100000 (0xffff8801db100000)
0000000034df3196: ffff8801db108000 (0xffff8801db108000)
0000000019ec2df3: ffff8801c5a1e530 (0xffff8801c5a1e530)
000000006058fb69: 0000000000000004 (0x4)
0000000087a21128: ffff8801c7204740 (0xffff8801c7204740)
00000000004b8f09: 0000000100000000 (0x100000000)
0000000057b3a769: ffff8801db107fe8 (0xffff8801db107fe8)
00000000ec6512fb: ffff8801db107528 (0xffff8801db107528)
0000000093b056a8: ffffffff86e00d4a (do_softirq_own_stack+0x2a/0x40)
0000000061a4ebae: 0000000000000000 ...
00000000d733cee2: 136de88ceadf3200 (0x136de88ceadf3200)
000000006f8d277f: 0000000000400000 (0x400000)
0000000038294cac: ffff8801dad6fc00 (0xffff8801dad6fc00)
00000000739d0405: 0000000000000001 (0x1)
000000000c4ca14d: ffff8801da8c03e0 (0xffff8801da8c03e0)
00000000774bd9f8: ffff8801db1075c8 (0xffff8801db1075c8)
0000000004f5d5ee: ffffffff812d665a (save_stack_trace+0x1a/0x20)
00000000ff53e985: ffff8801db1077f8 (0xffff8801db1077f8)
000000001409f1fc: ffffffff81bbaec3 (save_stack+0x43/0xd0)
000000003a2490c4: 0000004000000008 (0x4000000008)
00000000ac94a00d: ffff8801db1075f0 (0xffff8801db1075f0)
00000000dc3ecc4f: ffff880100000000 (0xffff880100000000)
000000001bdde8a4: ffffffff81bbaec3 (save_stack+0x43/0xd0)
00000000386fb644: ffffffff81bbb06a (__kasan_slab_free+0x11a/0x170)
000000009902b03c: ffffffff81bbb7de (kasan_slab_free+0xe/0x10)
0000000060cf39db: ffffffff81bb8606 (kmem_cache_free+0x86/0x280)
00000000fd0f66ae: ffffffff81cc64d0 (__d_free+0x20/0x30)
00000000e64330da: ffffffff8167aa08 (rcu_process_callbacks+0xf78/0x27c0)
00000000befc58df: ffffffff870002eb (__do_softirq+0x2eb/0xa74)
0000000067946a16: ffffffff86e00d4a (do_softirq_own_stack+0x2a/0x40)
0000000030eb4674: ffffffff00000003 (0xffffffff00000003)
00000000cd35b2e4: ffff8801db107658 (0xffff8801db107658)
00000000abd4f24e: ffffffff86d47823 (_raw_spin_unlock_irqrestore+0x63/0xc0)
000000009c01efaf: 0000000000000082 (0x82)
00000000298b9ff1: 1ffff1003b620ed2 (0x1ffff1003b620ed2)
00000000bf213cc9: 0000000000000001 (0x1)
000000006945e8e5: 0000000000000001 (0x1)
000000004dcc1853: ffff8801db107718 (0xffff8801db107718)
00000000f89ea2ac: ffffffff8182cfb8 (trace_hardirqs_off+0xb8/0x2b0)
000000000bcb0a44: ffffffff81bbadb1 (kasan_check_read+0x11/0x20)
000000001e180aa4: ffff8801db107718 (0xffff8801db107718)
00000000b9ff318d: ffffffff8160b467 (do_raw_spin_unlock+0xa7/0x2f0)
00000000e8394013: 0000000041b58ab3 (0x41b58ab3)
00000000e3227f15: ffffffff87dfc97e (regoff.30913+0x31635e/0x3294b0)
00000000447d0e6a: ffffffff8182cf00 (trace_hardirqs_on+0x2c0/0x2c0)
00000000f776edfe: 0000000000000000 ...
00000000238da02f: 0000000000000001 (0x1)
00000000b7af30fd: ffffffff89cdac50 (obj_hash+0x9ddd0/0x100020)
000000001ff995b8: ffffffff89cdac58 (obj_hash+0x9ddd8/0x100020)
0000000011a5be7b: ffff8801db1076d8 (0xffff8801db1076d8)
000000005798fc63: ffff8801c6800070 (0xffff8801c6800070)
0000000029e79909: ffff8801db107710 (0xffff8801db107710)
00000000b5fcb033: ffffffff8160b0c1 (do_raw_spin_lock+0xc1/0x200)
00000000be34fdb9: 136de88ceadf3200 (0x136de88ceadf3200)
00000000b044889c: 0000000000000082 (0x82)
0000000084ef59e6: ffffffff89cdac48 (obj_hash+0x9ddc8/0x100020)
00000000c60a76ac: 0000000000000001 (0x1)
0000000008a77850: dffffc0000000000 (0xdffffc0000000000)
0000000018ee4192: ffff8801da8c0000 (0xffff8801da8c0000)
00000000366a9f7b: ffff8801db107738 (0xffff8801db107738)
0000000085558809: ffffffff86d47823 (_raw_spin_unlock_irqrestore+0x63/0xc0)
00000000171e1a1f: ffffffff89cdac48 (obj_hash+0x9ddc8/0x100020)
00000000b046fbb3: 0000000000000000 ...
000000000ff73925: ffff8801db107838 (0xffff8801db107838)
0000000019b15cb2: ffffffff8372dc9b (debug_check_no_obj_freed+0x30b/0x595)
0000000091a85458: 0000000000000002 (0x2)
0000000094649c84: 0000000000000000 ...
00000000beea6016: ffffffff89cdac40 (obj_hash+0x9ddc0/0x100020)
0000000006bd865b: ffff8801da8c1000 (0xffff8801da8c1000)
000000005ebbd096: ffff8801da8c03e0 (0xffff8801da8c03e0)
0000000024466cfc: 00fff10000000001 (0xfff10000000001)
00000000cfcc8d89: fffffbfff139b588 (0xfffffbfff139b588)
000000004b378b71: 000000000009ddc0 (0x9ddc0)
00000000f4c11c2e: 1ffff1003b620ef6 (0x1ffff1003b620ef6)
00000000dc1458d2: ffffed003b620efa (0xffffed003b620efa)
00000000fd0603b6: ffff8801da8c02c0 (0xffff8801da8c02c0)
000000002ab46874: ffff8801da8c0000 (0xffff8801da8c0000)
0000000093abab84: 0000000000000082 (0x82)
000000002b7750e6: 0000000041b58ab3 (0x41b58ab3)
000000008ee9f65f: ffffffff87dfc97e (regoff.30913+0x31635e/0x3294b0)
0000000055299d98: ffffffff8372d990 (free_obj_work+0xbb0/0xbb0)
00000000a2929461: 0000000000000282 (0x282)
0000000044c583ac: 0000000000000000 ...
000000003da90ca9: ffffffff87e8291e (K512_4+0x70c1e/0x10d73c)
0000000020873976: ffffffff83729cf0 (debug_stats_show+0x100/0x100)
00000000e23fe515: ffff8801db107838 (0xffff8801db107838)
00000000ede9da76: ffff8801da8c02c0 (0xffff8801da8c02c0)
0000000007c8305f: ffff8801db107828 (0xffff8801db107828)
00000000abe54fa7: ffffffff81bbb06a (__kasan_slab_free+0x11a/0x170)
0000000083ba8d86: ffff8801da8c02c0 (0xffff8801da8c02c0)
000000009b8f2c0b: ffff8801dad6fc00 (0xffff8801dad6fc00)
0000000005a191f3: 0000000000000282 (0x282)
00000000eee32241: ffffffff81cc64d0 (__d_free+0x20/0x30)
00000000d642ac90: ffff8801db107838 (0xffff8801db107838)
0000000001cc2b8d: ffffffff81bbb7de (kasan_slab_free+0xe/0x10)
000000004ec3ca8e: ffff8801db107868 (0xffff8801db107868)
000000003367bbfa: ffffffff81bb8606 (kmem_cache_free+0x86/0x280)
0000000033c7976b: ffff8801da8c03d0 (0xffff8801da8c03d0)
000000008643a5dc: dffffc0000000000 (0xdffffc0000000000)
000000008db61855: ffff8801db107dd8 (0xffff8801db107dd8)
000000006eb49601: ffff8801da8c03d8 (0xffff8801da8c03d8)
00000000c41d01ef: ffff8801db107880 (0xffff8801db107880)
000000009285a844: ffffffff81cc64d0 (__d_free+0x20/0x30)
0000000042ed837c: ffffffff81cc64b0 (__d_free_external+0x60/0x60)
00000000219265aa: ffff8801db107e00 (0xffff8801db107e00)
0000000026d385f7: ffffffff8167aa08 (rcu_process_callbacks+0xf78/0x27c0)
000000005faefea6: ffff8801db107928 (0xffff8801db107928)
000000005986d10b: ffff8801db12db40 (0xffff8801db12db40)
00000000ea8d065c: ffffffff88196d80 (rcu_bh_varname+0x60/0x60)
000000003f21eee3: ffffffff8811bda8 (pv_irq_ops+0x8/0x30)
00000000a73f242f: ffff8801db107a98 (0xffff8801db107a98)
00000000cb2bc8dc: ffff8801db12dbe0 (0xffff8801db12dbe0)
0000000033eb45b4: 1ffff1003b620f1f (0x1ffff1003b620f1f)
00000000ab18f595: ffffffff8811bda0 (pv_cpu_ops+0x120/0x120)
00000000a89de5fd: ffffed003b620f25 (0xffffed003b620f25)
000000005535d0e4: 000000000000000a (0xa)
0000000012d6383f: ffff8801db12db78 (0xffff8801db12db78)
0000000066a06697: ffff8801db107918 (0xffff8801db107918)
000000009f5ae9a7: ffffed003b620f53 (0xffffed003b620f53)
00000000d4d63108: 0000000041b58ab3 (0x41b58ab3)
00000000a329a424: ffffffff87e1ad70 (K512_4+0x9070/0x10d73c)
0000000028e0b395: ffffffff81679a90 (call_rcu_sched+0x20/0x20)
000000005c2a35d6: ffffffff815ead40 (graph_lock+0x170/0x170)
00000000b682c8fd: ffff8801d56b0b30 (0xffff8801d56b0b30)
0000000024fb705d: ffff8801c768d5c0 (0xffff8801c768d5c0)
00000000a1d52a60: ffffffffffffffff (0xffffffffffffffff)
000000004659fba5: 0000000000000000 ...
0000000023daf1cc: 0000000000000082 (0x82)
0000000092711d5e: ffffffff89d14dc8 (obj_hash+0xd7f48/0x100020)
00000000237cff8c: ffff8801d765c438 (0xffff8801d765c438)
000000006a8632a3: ffff8801db1265a0 (0xffff8801db1265a0)
000000008596f7f3: 0000000000000003 (0x3)
0000000092555fac: ffff8801db107980 (0xffff8801db107980)
000000007390f7d5: ffffffff86d47823 (_raw_spin_unlock_irqrestore+0x63/0xc0)
000000009433df6e: ffff8801d765c428 (0xffff8801d765c428)
00000000d7b4c08f: 1ffff1003b620f36 (0x1ffff1003b620f36)
00000000f7176e13: ffff8801db1236e0 (0xffff8801db1236e0)
0000000019087675: 1ffff1003b620f38 (0x1ffff1003b620f38)
0000000049482606: ffff8801db1236f0 (0xffff8801db1236f0)
00000000b70e5570: 136de88ceadf3200 (0x136de88ceadf3200)
000000003daf3ed9: ffff8801c7204fd0 (0xffff8801c7204fd0)
00000000ad755bb1: ffff8801c7204740 (0xffff8801c7204740)
00000000f4de3a8e: ffffed0038e409ef (0xffffed0038e409ef)
000000008f170bba: ffff8801c7204f80 (0xffff8801c7204f80)
0000000006fb13f4: 0000000000000002 (0x2)
00000000fcb38131: ffff8801db107a18 (0xffff8801db107a18)
00000000d2be97dc: ffffffff815eb885 (__lock_is_held+0xb5/0x140)
000000007cf9831a: ffffffff00000001 (0xffffffff00000001)
000000000234233c: ffffffff89023688 (lock_chains+0x12c8/0x200020)
00000000a3c1fe48: ffff8801db1265a0 (0xffff8801db1265a0)
00000000e18268fb: dffffc0000000000 (0xdffffc0000000000)
000000008ec37490: 0000000000000000 ...
00000000bc9139d6: ffff8801db107a10 (0xffff8801db107a10)
00000000553955f4: ffffffff817cc148 (__sanitizer_cov_trace_cmp8+0x18/0x20)
0000000090f3a73f: ffff8801db107a60 (0xffff8801db107a60)
00000000b659d651: 0000000041b58ab3 (0x41b58ab3)
0000000095ee9bea: ffffffff87dfbf9f (regoff.30913+0x31597f/0x3294b0)
0000000036a6344c: ffffffff815ead40 (graph_lock+0x170/0x170)
000000007f72ed1f: ffffed003b624cb7 (0xffffed003b624cb7)
000000009afd3bf4: ffff8801db125d40 (0xffff8801db125d40)
00000000a75e7982: 1ffff1003b620f50 (0x1ffff1003b620f50)
000000001dcd6aef: ffff8801db1265a0 (0xffff8801db1265a0)
00000000984ef8f2: ffff8801db125cc0 (0xffff8801db125cc0)
000000000a65244a: 0000000000000000 ...
00000000c1e4e364: ffff8801db107b48 (0xffff8801db107b48)
0000000027cc2b40: ffffffff816b07c7 (enqueue_hrtimer+0x187/0x4e0)
000000000c733de7: ffffffff815fa7a0 (lock_release+0x9f0/0x9f0)
00000000810efa63: ffff880100000000 (0xffff880100000000)
00000000784f516e: 0000000041b58ab3 (0x41b58ab3)
00000000ea38d902: ffffffff87dfbf9f (regoff.30913+0x31597f/0x3294b0)
000000007d7e4c18: ffffffff816b0640 (hrtimer_update_softirq_timer+0xa0/0xa0)
00000000ed1dacca: 000000000000cc91 (0xcc91)
0000000084d86c45: ffff8801c7204f80 (0xffff8801c7204f80)
000000007e54a330: 0000000041b58ab3 (0x41b58ab3)
000000003c467781: 136de88ceadf3200 (0x136de88ceadf3200)
0000000076501900: 1ffff1003b620f6c (0x1ffff1003b620f6c)
00000000664f9645: ffff8801c7204fd0 (0xffff8801c7204fd0)
00000000b8ee47d0: ffffffff89b589c8 (tk_core+0x8/0x160)
0000000009ce9455: ffffffff89b589c8 (tk_core+0x8/0x160)
0000000028d28fcf: 0000000000000002 (0x2)
000000000f91cb1d: ffff8801db107b28 (0xffff8801db107b28)
00000000b2e4f8a1: ffffffff815eb646 (find_held_lock+0x36/0x1c0)
00000000904b0872: 00000003db107b28 (0x3db107b28)
00000000cfb0b98c: ffff8801db107b80 (0xffff8801db107b80)
00000000f7b3691b: 1ffff1003b620f6c (0x1ffff1003b620f6c)
00000000f0c23ac9: ffff8801db107c40 (0xffff8801db107c40)
000000000d7fc92a: ffffffff89b589c8 (tk_core+0x8/0x160)
00000000d51f33af: ffff8801c7204740 (0xffff8801c7204740)
00000000f084db10: ffff8801db107b80 (0xffff8801db107b80)
000000009a5ac1bc: ffff8801db107c68 (0xffff8801db107c68)
00000000106e8df1: 0000000000000082 (0x82)
000000001337a117: 0000000000000002 (0x2)
000000000add956e: 0000000000000003 (0x3)
00000000d5428a2b: ffff8801c7204f78 (0xffff8801c7204f78)
00000000cc0ca626: 0000000000000082 (0x82)
000000002f6904f1: 000000000000cc91 (0xcc91)
0000000061f5a3ed: 0000000041b58ab3 (0x41b58ab3)
00000000a67b6c1b: ffffffff87e18670 (K512_4+0x6970/0x10d73c)
0000000087ca187c: ffffffff815f9db0 (lock_downgrade+0x8f0/0x8f0)
00000000d9ee92c4: ffffffff87dfbf9f (regoff.30913+0x31597f/0x3294b0)
0000000058936836: ffffffff00000002 (0xffffffff00000002)
00000000d22d1a84: 0000000000000082 (0x82)
000000005311376d: 000000003b620f7f (0x3b620f7f)
000000005269299d: ffffffff89b589c8 (tk_core+0x8/0x160)
00000000c117c0b5: 1ffff1003b620f7b (0x1ffff1003b620f7b)
0000000022f58268: ffffffff88f77057 (hv_clock_boot+0x57/0x1000)
00000000a6e1a05e: ffffffff88f7704f (hv_clock_boot+0x4f/0x1000)
00000000d09a33b6: fffffbfff11eee0b (0xfffffbfff11eee0b)
0000000031c532ce: ffffffff88f7705c (hv_clock_boot+0x5c/0x1000)
000000006564cff5: ffffffff88f77048 (hv_clock_boot+0x48/0x1000)
000000000a94eb70: 0000000041b58ab3 (0x41b58ab3)
000000000b2495b5: ffffffff87dfea08 (regoff.30913+0x3183e8/0x3294b0)
000000008ef4a11a: ffffffff815f1d50 (print_usage_bug+0xc0/0xc0)
000000003c0eeb57: ffffffff813535b0 (pvclock_read_flags+0x160/0x160)
000000003b3de2e8: ffffffff87dfc97e (regoff.30913+0x31635e/0x3294b0)
00000000a2fe900d: ffffffff8182cf00 (trace_hardirqs_on+0x2c0/0x2c0)
00000000f1f45f24: 0000000000000000 ...
00000000f3dd8ccb: 136de88ceadf3200 (0x136de88ceadf3200)
0000000045598f32: 1ffff1003b620f97 (0x1ffff1003b620f97)
00000000bc5752a3: ffff8801c7204fd0 (0xffff8801c7204fd0)
0000000083312ec7: ffff8801db125cd8 (0xffff8801db125cd8)
00000000bd15e9ee: ffff8801db125cd8 (0xffff8801db125cd8)
00000000b1fa7ecf: 136de88ceadf3200 (0x136de88ceadf3200)
000000007b911ced: ffffffff8811b880 (kvmapf+0x660/0x660)
000000007f36b7df: dffffc0000000000 (0xdffffc0000000000)
00000000db946281: 0000000000016254 (0x16254)
00000000ca857805: ffff8801db107d50 (0xffff8801db107d50)
00000000d4ec8b85: ffffffff8811bda0 (pv_cpu_ops+0x120/0x120)
00000000ff56d5c5: ffff8801db107c70 (0xffff8801db107c70)
000000009954fc89: ffffffff817cc126 (__sanitizer_cov_trace_cmp4+0x16/0x20)
00000000f7197205: ffff8801db107d78 (0xffff8801db107d78)
00000000c18c78cd: ffffffff816bd041 (ktime_get+0x2e1/0x440)
00000000543e5ddb: 1ffff1003b620f96 (0x1ffff1003b620f96)
000000001c97ce7e: 0010628ea4000000 (0x10628ea4000000)
0000000089eaa1b5: 0080000000000017 (0x80000000000017)
00000000e8fa74b7: 00000016ccb6b1c8 (0x16ccb6b1c8)
000000004b680fcb: 0000000041b58ab3 (0x41b58ab3)
000000000b6da169: ffffffff87dfbf9f (regoff.30913+0x31597f/0x3294b0)
000000003f4a72bf: ffffffff815ead40 (graph_lock+0x170/0x170)
0000000021717c01: ffff8801c7204740 (0xffff8801c7204740)
00000000ef2fd6c0: dffffc0000000000 (0xdffffc0000000000)
000000009d8f7c6d: 0000000000000003 (0x3)
00000000eaf38449: ffffed0038e409ef (0xffffed0038e409ef)
0000000059e2f61f: ffff8801db107d30 (0xffff8801db107d30)
0000000008cf016e: ffffffff815f3809 (mark_held_locks+0xc9/0x160)
00000000225722bb: fffffbfff10237b6 (0xfffffbfff10237b6)
00000000a9a9569a: ffff8801c7204f78 (0xffff8801c7204f78)
00000000a1a60bda: ffff8801c7204f80 (0xffff8801c7204f80)
000000004b08085c: 0000000000000002 (0x2)
00000000b5148100: ffff8801c7204740 (0xffff8801c7204740)
000000002969f7c4: ffffffff87000278 (__do_softirq+0x278/0xa74)
000000002fa5619c: dffffc0000000000 (0xdffffc0000000000)
0000000025e980c4: ffff8801db1236e0 (0xffff8801db1236e0)
000000007998f365: 1ffff1003b620fac (0x1ffff1003b620fac)
000000005b7f2e3f: ffff8801db1236f0 (0xffff8801db1236f0)
00000000012350ea: 136de88ceadf3200 (0x136de88ceadf3200)
0000000051941d0b: ffff8801c7204fa8 (0xffff8801c7204fa8)
00000000e0f24304: ffff8801c7204740 (0xffff8801c7204740)
000000004cf4414d: ffffed0038e409ef (0xffffed0038e409ef)
0000000089690584: ffff8801c7204f80 (0xffff8801c7204f80)
00000000902b65ca: 0000000000000001 (0x1)
00000000eb4b3550: ffff8801db107db8 (0xffff8801db107db8)
00000000d34de636: ffffffff815eb885 (__lock_is_held+0xb5/0x140)
00000000579d7869: ffffffff41b58ab3 (0xffffffff41b58ab3)
000000009487c764: ffff8801c7204f78 (0xffff8801c7204f78)
00000000cf343ddb: ffffffff881936a0 (rcu_callback_map+0x40/0x40)
0000000070fb63b1: 0000000000000282 (0x282)
0000000048ae23a8: ffff8801c7204740 (0xffff8801c7204740)
00000000d1c6ece0: ffffffff881936a0 (rcu_callback_map+0x40/0x40)
00000000ee743542: 0000000000000009 (0x9)
0000000003c2f3db: 0000000000000009 (0x9)
00000000d562bd97: ffff8801db107de8 (0xffff8801db107de8)
00000000dd6122ac: 0000000000000282 (0x282)
0000000079ef38e0: 0000000000000009 (0x9)
00000000312e9440: 136de88ceadf3200 (0x136de88ceadf3200)
00000000d6eae08a: ffffffff88009148 (softirq_vec+0x48/0x80)
000000005e217e55: 0000000000000009 (0x9)
00000000e5f0f4e7: dffffc0000000000 (0xdffffc0000000000)
00000000ddf85779: 0000000000000009 (0x9)
00000000feec0265: 0000000000000009 (0x9)
0000000057df0cb0: ffff8801db107fe8 (0xffff8801db107fe8)
000000008cc5f533: ffffffff870002eb (__do_softirq+0x2eb/0xa74)
000000005ee28632: ffffffff881936a0 (rcu_callback_map+0x40/0x40)
000000000e2a2486: 1ffff1003b620fcc (0x1ffff1003b620fcc)
000000009256cc06: 00ff880100404040 (0xff880100404040)
0000000046679121: 00000000fffce75c (0xfffce75c)
00000000e7e7f4dc: ffffed003b620ff0 (0xffffed003b620ff0)
00000000dbe1506d: 0000000000000009 (0x9)
000000009242e8ff: 0000000000000050 (0x50)
00000000f1fba08e: 000001010000000a (0x1010000000a)
00000000bfc2ec52: ffffffff88009100 (tasklist_lock+0x40/0x40)
0000000032371961: 000002000000000a (0x2000000000a)
00000000b17f018a: 0000000041b58ab3 (0x41b58ab3)
00000000ea166a89: ffffffff87e138d0 (K512_4+0x1bd0/0x10d73c)
000000009ca5b2c6: ffffffff87000000 (__irqentry_text_end+0x1f9f00/0x1f9f00)
0000000094ee44ad: ffffffff8149775d (irq_exit+0xbd/0x210)
0000000068b104c3: 1ffff1003b620fd4 (0x1ffff1003b620fd4)
00000000dbf88040: ffff8801db107fe8 (0xffff8801db107fe8)
000000001edc3825: ffffffff86e04afe (smp_apic_timer_interrupt+0x18e/0x6a0)
00000000daccdd0a: 0000000000000000 ...
00000000924d4770: 0000000041b58ab3 (0x41b58ab3)
00000000bd229c34: ffffffff87dfc8a0 (regoff.30913+0x316280/0x3294b0)
00000000b845bffb: ffffffff86e04970 (smp_call_function_single_interrupt+0x5d0/0x5d0)
00000000b7c6881f: 0000000000000082 (0x82)
00000000de2c041b: 0000000000000082 (0x82)
00000000f9616656: 1ffff1003b620fe1 (0x1ffff1003b620fe1)
00000000372fa4fb: ffffffff86e0095a (ret_from_intr+0xb/0x1e)
0000000097cc3b33: 0000000000000000 ...
000000002d384b5a: ffff8801db107f90 (0xffff8801db107f90)
0000000092b97791: ffffffff8182ca4b (trace_hardirqs_off_caller+0xbb/0x2b0)
000000003b8b7381: ffff8801db107f00 (0xffff8801db107f00)
00000000fe44a4f8: ffffffff81007be0 (trace_hardirqs_off_thunk+0x1a/0x1c)
0000000069c10325: 0000000000000000 ...
000000007e2ef083: 0000000041b58ab3 (0x41b58ab3)
00000000da2db941: ffffffff87dfc97e (regoff.30913+0x31635e/0x3294b0)
00000000c61ccb93: ffffffff8182c990 (trace_hardirqs_on_caller+0x2b0/0x2b0)
00000000869c29a3: ffffffff87dfc97e (regoff.30913+0x31635e/0x3294b0)
00000000aa7f4b90: ffffffff8155b330 (task_prio+0x50/0x50)
000000003e2494ce: ffff8801db1265a0 (0xffff8801db1265a0)
000000002bddd469: 0000000000000001 (0x1)
00000000f6285ba2: ffff8801db1265ec (0xffff8801db1265ec)
00000000ae8b550e: 0000000000000026 (0x26)
000000009e2fb486: 7dce27f22856ff00 (0x7dce27f22856ff00)
00000000b2bdc994: 136de88ceadf3200 (0x136de88ceadf3200)
0000000094ac3ac9: 136de88ceadf3200 (0x136de88ceadf3200)
000000007930dfde: 0000000000000000 ...
00000000148190df: ffff8801db107fe8 (0xffff8801db107fe8)
00000000bffb7e93: ffffffff81007be0 (trace_hardirqs_off_thunk+0x1a/0x1c)
00000000efa7aa5e: ffff8801db1236f3 (0xffff8801db1236f3)
00000000ca0d3d1b: ffffed003b6246de (0xffffed003b6246de)
0000000089576437: ffffed003b6246de (0xffffed003b6246de)
00000000a14500aa: 136de88ceadf3200 (0x136de88ceadf3200)
000000009b615dbb: 0000000000000082 (0x82)
000000008535bd60: ffff8801d9f3a480 (0xffff8801d9f3a480)
00000000afdb921b: ffff8801c7204740 (0xffff8801c7204740)
0000000051c42d6f: 0000000000000000 ...
00000000bb3846d2: ffff8801c5a1e530 (0xffff8801c5a1e530)
00000000d5b6060d: ffffffff86e00d4a (do_softirq_own_stack+0x2a/0x40)
0000000048f1b907: ffff8801c5a1e530 (0xffff8801c5a1e530)
==================================================================
BUG: KASAN: stack-out-of-bounds in vsnprintf+0x18de/0x1b60 lib/vsprintf.c:2293
Read of size 8 at addr ffff8801c5a3f078 by task syz-executor0/8211

CPU: 0 PID: 8211 Comm: syz-executor0 Not tainted 4.19.0-rc1+ #215
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x30d mm/kasan/report.c:412
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
 vsnprintf+0x18de/0x1b60 lib/vsprintf.c:2293
 vscnprintf+0x2d/0x80 lib/vsprintf.c:2396
 vprintk_store+0x43/0x560 kernel/printk/printk.c:1849
 vprintk_emit+0x1c1/0x910 kernel/printk/printk.c:1910
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1968
 vprintk_func+0x7a/0x117 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:2001
 show_fault_oops arch/x86/mm/fault.c:670 [inline]
 no_context.cold.36+0x6a/0x98 arch/x86/mm/fault.c:797
 __bad_area_nosemaphore+0x33c/0x3f0 arch/x86/mm/fault.c:901
 bad_area_nosemaphore+0x33/0x40 arch/x86/mm/fault.c:908
 __do_page_fault+0x1db/0xe50 arch/x86/mm/fault.c:1327
 do_page_fault+0xf6/0x7a4 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffff8801c5a3f520 EFLAGS: 00010086
RAX: ffff8801d9bb2200 RBX: ffff8801c5a3f540 RCX: 0000000000000000
RDX: 1ffff1003b376440 RSI: 0000000000000000 RDI: 0000000000000082
RBP: 136de88ceadf3200 R08: ffffed003b6046df R09: ffffed003b6046de
R10: ffffed003b6046de R11: ffff8801db0236f3 R12: ffff8801b4acac88
R13: ffff8801b4acacc0 R14: ffff8801b4acac00 R15: ffffffff81495de1

The buggy address belongs to the page:
page:ffffea0007168fc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x2fffc0000000000()
raw: 02fffc0000000000 0000000000000000 ffffffff07160101 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801c5a3ef00: f2 f2 01 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 00 00
 ffff8801c5a3ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801c5a3f000: 00 00 f1 f1 f1 f1 00 00 00 f2 00 00 00 f2 f2 f2
                                                                ^
 ffff8801c5a3f080: f2 00 f2 f2 f2 00 00 00 00 00 00 00 00 00 00 f1
 ffff8801c5a3f100: f1 f1 f1 f8 f2 f2 f2 00 00 00 00 f1 f1 f1 f1 00
==================================================================