2019-09-13 01:20:19

by Jakub Jankowski

[permalink] [raw]
Subject: Memory corruption (redzone overwritten) names_cache?

Hi,

We're getting some random memory corruption on an AWS EC2 instance with
4.19.x kernels. I've tried 4.19.19, 4.19.52, but the results below are
from the most recent (4.19.72). For debugging I enabled
KASAN+slub_debug, but TBH, I can't make heads or tails from these.

Without slub_debug, the host reboots within couple of minutes of uptime.
With slub_debug it survives a bit longer, but eventually all sorts of
issues manifest (including: reboot; ps not being able to read some
processes' /proc/<pid>/cmdline while /proc/<pid>/stack shows
acct_collect()->down_read(), etc).

Upon multiple tests, the slab I most often seen pop up as first detected
as corrupted was names_cache.
What is really weird is that multiple times I saw redzone being
overwritten by the same content, which looks like part of 'sessions.py' 
Python's 'requests' module.

Any debugging hints would be greatly appreciated.


Command line: BOOT_IMAGE=(hd0,msdos2)/vmlinuz ro root=/dev/xvda5 console=tty0 console=ttyS0,9600n8 crashkernel=512M-2G:64M,2G-:128M kmemleak=on slub_debug=FZPU slub_nomerge
(...)
[ 262.957418] =============================================================================
[ 262.957423] BUG vm_area_struct (Tainted: G B O ): Redzone overwritten
[ 262.957424] -----------------------------------------------------------------------------

[ 262.957427] INFO: 0x00000000b91cc681-0x0000000098bd5238. First byte 0x6e instead of 0xcc
[ 262.957433] INFO: Allocated in vm_area_dup+0x1e/0x180 age=6117 cpu=0 pid=8187
[ 262.957438] kmem_cache_alloc+0x1a4/0x1d0
[ 262.957439] vm_area_dup+0x1e/0x180
[ 262.957441] copy_process.part.4+0x2fa9/0x6cd0
[ 262.957443] _do_fork+0x151/0x7a0
[ 262.957446] do_syscall_64+0x9b/0x290
[ 262.957452] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 262.957455] INFO: Freed in qlist_free_all+0x37/0xd0 age=7431 cpu=0 pid=8521
[ 262.957457] quarantine_reduce+0x1a2/0x210
[ 262.957458] kasan_kmalloc+0x95/0xc0
[ 262.957460] kmem_cache_alloc+0xc6/0x1d0
[ 262.957463] getname_flags+0xba/0x510
[ 262.957465] user_path_at_empty+0x1d/0x40
[ 262.957468] vfs_statx+0xb9/0x140
[ 262.957470] __se_sys_newstat+0x7c/0xd0
[ 262.957472] do_syscall_64+0x9b/0x290
[ 262.957474] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 262.957476] INFO: Slab 0x00000000ca532806 objects=30 used=24 fp=0x000000006ce6da86 flags=0x2ffff0000008101
[ 262.957477] INFO: Object 0x000000005eb7e26b @offset=8 fp=0x00000000ac807fa7

[ 262.957480] Redzone 00000000b91cc681: 6e 73 2e 70 79 5c 22 2c ns.py\",
[ 262.957482] Object 000000005eb7e26b: 20 6c 69 6e 65 20 36 34 36 2c 20 69 6e 20 73 65 line 646, in se
[ 262.957484] Object 000000007d5d4673: 6e 64 5c 6e 20 20 20 20 72 20 3d 20 61 64 61 70 nd\n r = adap
[ 262.957485] Object 00000000a3cf6db1: 74 65 72 2e 73 65 6e 64 28 72 65 71 75 65 73 74 ter.send(request
[ 262.957487] Object 00000000d8b14cdd: 2c 20 2a 2a 6b 77 61 72 00 00 00 00 00 00 00 00 , **kwar........
[ 262.957489] Object 000000005eca0928: 40 97 5a 73 83 88 ff ff 25 00 00 00 00 00 00 80 @.Zs....%.......
[ 262.957491] Object 00000000592ffbd7: 71 00 00 00 00 00 00 00 e0 c8 22 6d 83 88 ff ff q........."m....
[ 262.957492] Object 0000000084c88ae5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 262.957494] Object 00000000ea6d1cb3: 83 00 00 00 00 00 00 00 80 c0 fd 5a 83 88 ff ff ...........Z....
[ 262.957495] Object 00000000a236617c: 80 c0 fd 5a 83 88 ff ff 00 00 00 00 00 00 00 00 ...Z............
[ 262.957497] Object 0000000091c7956c: 00 3a 94 b0 ff ff ff ff 75 00 00 00 00 00 00 00 .:......u.......
[ 262.957499] Object 00000000216cef35: c0 85 cc 6a 83 88 ff ff 00 00 00 00 00 00 00 00 ...j............
[ 262.957500] Object 00000000e0fd506c: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 262.957502] Redzone 00000000f5906e86: cc cc cc cc cc cc cc cc ........
[ 262.957503] Padding 0000000053d79574: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
[ 262.957507] CPU: 3 PID: 11769 Comm: ps Kdump: loaded Tainted: G B O 4.19.72_3upstreamdbg #1
[ 262.957508] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 262.957509] Call Trace:
[ 262.957516] dump_stack+0x9a/0xf0
[ 262.957519] check_bytes_and_report.cold.24+0x3f/0x6b
[ 262.957521] check_object+0x17c/0x280
[ 262.957524] free_debug_processing+0x105/0x2a0
[ 262.957526] ? qlist_free_all+0x37/0xd0
[ 262.957527] ? qlist_free_all+0x37/0xd0
[ 262.957529] __slab_free+0x218/0x3b0
[ 262.957533] ? __free_pages_ok+0x62f/0x840
[ 262.957536] ? _raw_spin_unlock_irqrestore+0x2b/0x40
[ 262.957537] ? qlist_free_all+0x37/0xd0
[ 262.957541] ? trace_hardirqs_on+0x35/0x140
[ 262.957543] ? qlist_free_all+0x37/0xd0
[ 262.957544] qlist_free_all+0x4c/0xd0
[ 262.957546] quarantine_reduce+0x1a2/0x210
[ 262.957549] ? getname_flags+0xba/0x510
[ 262.957550] kasan_kmalloc+0x95/0xc0
[ 262.957553] ? getname_flags+0xba/0x510
[ 262.957555] kmem_cache_alloc+0xc6/0x1d0
[ 262.957557] getname_flags+0xba/0x510
[ 262.957561] ? task_work_run+0xdf/0x180
[ 262.957567] do_sys_open+0x149/0x300
[ 262.957572] ? filp_open+0x50/0x50
[ 262.957575] ? do_syscall_64+0x18/0x290
[ 262.957579] do_syscall_64+0x9b/0x290
[ 262.957583] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 262.957586] RIP: 0033:0x7f5b8719e40e
[ 262.957591] Code: 25 00 00 41 00 3d 00 00 41 00 74 48 48 8d 05 f9 62 0d 00 8b 00 85 c0 75 69 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 0f 87 a6 00 00 00 48 8b 4c 24 28 64 48 33 0c 25
[ 262.957593] RSP: 002b:00007ffcec0bbac0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 262.957598] RAX: ffffffffffffffda RBX: 00007f5b8728e958 RCX: 00007f5b8719e40e
[ 262.957599] RDX: 0000000000000000 RSI: 00007ffcec0bbb40 RDI: 00000000ffffff9c
[ 262.957600] RBP: 00007f5b8728e950 R08: 00007f5b87288d46 R09: 00007ffcec0bb4b0
[ 262.957602] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcec0bbb40
[ 262.957603] R13: 00000000007b4d90 R14: 0000000000000020 R15: 0000000000000000
[ 262.957606] FIX vm_area_struct: Restoring 0x00000000b91cc681-0x0000000098bd5238=0xcc

[ 262.957608] FIX vm_area_struct: Object at 0x000000005eb7e26b not freed
[ 262.957612] kasan: CONFIG_KASAN_INLINE enabled
[ 262.962707] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 262.973006] general protection fault: 0000 [#1] SMP KASAN PTI
[ 262.978375] CPU: 3 PID: 11769 Comm: ps Kdump: loaded Tainted: G B O 4.19.72_3upstreamdbg #1
[ 262.987937] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 262.993305] RIP: 0010:qlist_free_all+0x80/0xd0
[ 262.996830] Code: df 48 85 db 75 db 48 89 f0 4c 01 f0 72 54 4c 89 fa 48 2b 15 82 d0 5a 02 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 60 d0 5a 02 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb a2 49
[ 263.013354] RSP: 0018:ffff8882f3cefd48 EFLAGS: 00010203
[ 263.017696] RAX: 00d0c45f95b9a580 RBX: 0000000000000000 RCX: ffffffffae6cad40
[ 263.023538] RDX: 0000777f80000000 RSI: 343620656e696c20 RDI: 0000000000000000
[ 263.029706] RBP: 343620656e696c20 R08: ffffed106fd5be97 R09: ffffed106fd5be96
[ 263.036338] R10: ffffed106fd5be96 R11: ffff88837eadf4b7 R12: ffffffffae8edc17
[ 263.042388] R13: ffff8882f3cefd80 R14: 0000000080000000 R15: ffffffff80000000
[ 263.048173] FS: 00007f5b870b1740(0000) GS:ffff88837eac0000(0000) knlGS:0000000000000000
[ 263.054883] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.057753] CR2: 00000000007c0c68 CR3: 000000035b8b0005 CR4: 00000000001606e0
[ 263.062110] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 263.066477] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 263.071453] Call Trace:
[ 263.073312] quarantine_reduce+0x1a2/0x210
[ 263.076307] ? getname_flags+0xba/0x510
[ 263.078948] kasan_kmalloc+0x95/0xc0
[ 263.081357] ? getname_flags+0xba/0x510
[ 263.084200] kmem_cache_alloc+0xc6/0x1d0
[ 263.086942] getname_flags+0xba/0x510
[ 263.089460] ? task_work_run+0xdf/0x180
[ 263.092193] do_sys_open+0x149/0x300
[ 263.094717] ? filp_open+0x50/0x50
[ 263.097150] ? do_syscall_64+0x18/0x290
[ 263.099872] do_syscall_64+0x9b/0x290
[ 263.102388] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 263.105832] RIP: 0033:0x7f5b8719e40e
[ 263.108292] Code: 25 00 00 41 00 3d 00 00 41 00 74 48 48 8d 05 f9 62 0d 00 8b 00 85 c0 75 69 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 0f 87 a6 00 00 00 48 8b 4c 24 28 64 48 33 0c 25
[ 263.121749] RSP: 002b:00007ffcec0bbac0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 263.126863] RAX: ffffffffffffffda RBX: 00007f5b8728e958 RCX: 00007f5b8719e40e
[ 263.131685] RDX: 0000000000000000 RSI: 00007ffcec0bbb40 RDI: 00000000ffffff9c
[ 263.136512] RBP: 00007f5b8728e950 R08: 00007f5b87288d46 R09: 00007ffcec0bb4b0
[ 263.141399] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcec0bbb40
[ 263.146308] R13: 00000000007b4d90 R14: 0000000000000020 R15: 0000000000000000
[ 263.151119] Modules linked in: xfrm6_mode_tunnel softdog vhost_net vhost tap openvswitch nsh xt_condition(O) xt_bpf xt_nfacct ipt_rpfilter bpfilter nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 ip6t_ipv6header ip6t_rt ip6t_eui64 ip6t_frag ip6t_mh ip6t_hbh ip6t_ah ip6t_REJECT nf_reject_ipv6 ip6table_mangle ip6table_raw ip6table_filter ip6_tables ebt_ip6 ip_set_hash_net ip_set_hash_ip ip_set xt_u32 xt_time xt_tcpmss xt_string xt_statistic xt_state xt_realm xt_quota xt_policy xt_pkttype xt_physdev xt_multiport xt_mac xt_limit xt_length xt_iprange xt_helper xt_esp xt_dscp xt_dccp xt_conntrack xt_connlimit nf_conncount xt_connbytes xt_comment xt_cluster xt_TRACE xt_TCPOPTSTRIP xt_TCPMSS xt_NFQUEUE xt_NFLOG xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY sch_tbf sch_sfb sch_red sch_qfq sch_prio sch_mqprio
[ 263.203404] sch_ingress sch_htb sch_gred sch_choke sch_cbq nfnetlink_cttimeout nf_nat_tftp nf_nat_snmp_basic asn1_decoder nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ipv6 nf_nat_ftp nf_nat_amanda nf_conntrack_tftp nf_conntrack_snmp nf_conntrack_sane nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_irc nf_conntrack_ftp nf_conntrack_broadcast ts_kmp nf_conntrack_amanda iptable_raw iptable_nat iptable_mangle iptable_filter ipt_ah ipt_REJECT ipt_MASQUERADE ipt_ECN ipt_CLUSTERIP ipip ifb em_u32 em_text em_nbyte em_meta em_cmp ebtable_nat ebtable_filter ebtable_broute ebtables ebt_vlan ebt_stp ebt_snat ebt_redirect ebt_pkttype ebt_nflog ebt_mark_m ebt_mark ebt_log ebt_limit ebt_ip ebt_dnat ebt_arpreply ebt_arp ebt_among ebt_802_3 cls_u32 cls_tcindex
[ 263.257550] cls_route cls_fw cls_cgroup cls_basic arptable_filter arpt_mangle arp_tables act_police act_pedit act_nat act_mirred act_ipt act_gact pcc_cpufreq crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ixgbevf i2c_piix4 intel_rapl_perf
[ 263.273126] ---[ end trace 4a14396e6b248e3f ]---
[ 263.276936] RIP: 0010:qlist_free_all+0x80/0xd0
[ 263.280735] Code: df 48 85 db 75 db 48 89 f0 4c 01 f0 72 54 4c 89 fa 48 2b 15 82 d0 5a 02 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 60 d0 5a 02 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb a2 49
[ 263.297123] RSP: 0018:ffff8882f3cefd48 EFLAGS: 00010203
[ 263.301935] RAX: 00d0c45f95b9a580 RBX: 0000000000000000 RCX: ffffffffae6cad40
[ 263.307822] RDX: 0000777f80000000 RSI: 343620656e696c20 RDI: 0000000000000000
[ 263.313679] RBP: 343620656e696c20 R08: ffffed106fd5be97 R09: ffffed106fd5be96
[ 263.319433] R10: ffffed106fd5be96 R11: ffff88837eadf4b7 R12: ffffffffae8edc17
[ 263.325115] R13: ffff8882f3cefd80 R14: 0000000080000000 R15: ffffffff80000000
[ 263.330946] FS: 00007f5b870b1740(0000) GS:ffff88837eac0000(0000) knlGS:0000000000000000
[ 263.337597] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.342332] CR2: 00000000007c0c68 CR3: 000000035b8b0005 CR4: 00000000001606e0
[ 263.347350] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 263.352227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
(...)
[ 307.139653] =============================================================================
[ 307.144271] BUG names_cache (Tainted: G B D O ): Redzone overwritten
[ 307.148280] -----------------------------------------------------------------------------

[ 307.153261] INFO: 0x000000001d2ecfa4-0x000000002a22a890. First byte 0x6e instead of 0xcc
[ 307.157848] INFO: Allocated in getname_flags+0xba/0x510 age=4369 cpu=0 pid=11772
[ 307.161947] kmem_cache_alloc+0x1a4/0x1d0
[ 307.164241] getname_flags+0xba/0x510
[ 307.166368] user_path_at_empty+0x1d/0x40
[ 307.168701] vfs_statx+0xb9/0x140
[ 307.170717] __se_sys_newstat+0x7c/0xd0
[ 307.172982] do_syscall_64+0x9b/0x290
[ 307.175125] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 307.177979] INFO: Freed in qlist_free_all+0x37/0xd0 age=4370 cpu=0 pid=11772
[ 307.182209] quarantine_reduce+0x1a2/0x210
[ 307.184868] kasan_kmalloc+0x95/0xc0
[ 307.187184] kmem_cache_alloc+0xc6/0x1d0
[ 307.189732] getname_flags+0xba/0x510
[ 307.192068] user_path_at_empty+0x1d/0x40
[ 307.194650] vfs_statx+0xb9/0x140
[ 307.196821] __se_sys_newstat+0x7c/0xd0
[ 307.199406] do_syscall_64+0x9b/0x290
[ 307.201916] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 307.205643] INFO: Slab 0x00000000071e61e6 objects=7 used=6 fp=0x00000000ae2f1e0c flags=0x2ffff0000008101
[ 307.212340] INFO: Object 0x0000000029ff60d9 @offset=64 fp=0x00000000525e3571

[ 307.217672] Redzone 000000001d2ecfa4: 6e 73 2e 70 79 5c 22 2c 20 6c 69 6e 65 20 36 34 ns.py\", line 64
[ 307.224248] Redzone 0000000019afa6b8: 36 2c 20 69 6e 20 73 65 6e 64 5c 6e 20 20 20 20 6, in send\n
[ 307.230709] Redzone 000000006e1958f4: 72 20 3d 20 61 64 61 70 74 65 72 2e 73 65 6e 64 r = adapter.send
[ 307.237255] Redzone 000000002cfdad55: 28 72 65 71 75 65 73 74 2c 20 2a 2a 6b 77 61 72 (request, **kwar
[ 307.243769] Object 0000000029ff60d9: 40 47 9e 5c 83 88 ff ff 40 be 77 02 00 00 00 00 @G.\[email protected].....
[ 307.249758] Object 000000007c05b8ad: 00 00 00 00 6b 6b 6b 6b 00 00 00 00 00 00 00 00 ....kkkk........
[ 307.256292] Object 000000003c27c064: 2f 6f 70 74 2f 4f 53 41 47 70 6d 6f 6e 2f 6c 69 /opt/OSAGpmon/li
[ 307.262715] Object 0000000069f20b8f: 62 2f 4e 65 74 2f 49 50 2e 70 6d 00 00 00 00 00 b/Net/IP.pm.....
[ 307.269096] Object 0000000042d7882f: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.275649] Object 000000003b7b6941: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.282184] Object 00000000fe5ff8f2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.288430] Object 00000000b56d40c9: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.294531] Object 000000002fe598b6: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.300656] Object 00000000d0e72570: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.307338] Object 000000002d3efd2e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.315481] Object 000000009dd4b99f: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.323242] Object 00000000b1feef78: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.330056] Object 00000000f3960085: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.336504] Object 000000001e37161a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.342602] Object 00000000f2d92361: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.348767] Object 0000000022351192: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.355124] Object 000000008f893258: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.361220] Object 00000000300b78fd: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.367426] Object 0000000051f24bbb: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.373756] Object 0000000083bde3d9: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.381097] Object 00000000d9d100b5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.387323] Object 000000003ee0873d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.393653] Object 00000000b64903d5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.401595] Object 000000007225d6f3: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.408112] Object 000000006b53efc1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.414222] Object 0000000012fbc488: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.420396] Object 00000000e9eb9844: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.428116] Object 0000000086e41de1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.436173] Object 0000000076a949df: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.444604] Object 00000000ae0dec44: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.452689] Object 00000000024ab661: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.460856] Object 000000009d475ad2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.468905] Object 0000000004f78267: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.477688] Object 00000000e62ff8d1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.485703] Object 0000000088713e3d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 307.493726] Object 00000000a9368135: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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[ 308.514025] Object 000000009abf3009: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.520834] Object 0000000075ed740d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.527662] Object 000000003d1f2f4c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.534523] Object 000000003cc7f3f6: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.541456] Object 00000000d3f918d5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.548388] Object 00000000df9307ab: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.555254] Object 00000000f93826b4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.562085] Object 000000005fb343a8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.568936] Object 000000005dad0b94: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.575929] Object 0000000003049af0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.582788] Object 000000005831a996: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.589553] Object 0000000043da6189: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.596410] Object 0000000017326f98: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.603213] Object 00000000dd270209: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.609942] Object 00000000f745f437: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.617496] Object 000000008822777a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.625284] Object 000000002cf552d7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.632825] Object 000000007f7f0498: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.640889] Object 000000001034683d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.649000] Object 000000007b46d828: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.656874] Object 000000004e055246: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.664988] Object 0000000042074305: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.673053] Object 000000005203f3d2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.681042] Object 00000000c5ff3bf1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.689142] Object 0000000089e53bd0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.697233] Object 0000000056b9686e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.707172] Object 00000000c292b303: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.715207] Object 00000000fb7177f7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.723360] Object 00000000c4959417: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.731267] Object 0000000045790fe1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.739313] Object 00000000aeba7e4d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.747457] Object 000000002e7ebce9: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.755312] Object 000000004f25d974: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.763556] Object 00000000760cc051: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.771686] Object 000000005f2ac704: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.779627] Object 000000000a6a6b41: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.787690] Object 0000000074580d46: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.795825] Object 00000000b47fba88: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.803762] Object 00000000bc73dc78: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.811778] Object 00000000b776e10b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.819909] Object 0000000036725f6c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.827832] Object 000000004790848d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.835918] Object 000000006d2afa17: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.844035] Object 000000008faea528: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.851997] Object 00000000da0ada39: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.860093] Object 00000000418c8207: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.868229] Object 00000000bfc37df8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.876277] Object 000000007029bbc3: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.884360] Object 00000000849badd8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.893050] Object 000000005b3619d4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.901062] Object 000000008bbb001e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.909058] Object 00000000eeb5b28a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.917211] Object 00000000d5ae2a95: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.925273] Object 0000000030985d80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.933359] Object 0000000053480c8c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.941546] Object 000000005b33e767: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.949484] Object 00000000939af4b5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.957573] Object 000000001f4a95d2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.965802] Object 00000000d9aa53ba: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.973943] Object 0000000055b3b900: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.982142] Object 00000000eac6cc50: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.990794] Object 00000000550f2266: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 308.999072] Object 00000000e7974ad7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.007861] Object 000000002d394c40: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.016075] Object 000000008c50910a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.024478] Object 000000002d60db08: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.032926] Object 00000000f4c4160d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.041336] Object 00000000c027146c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.049650] Object 00000000c7da39ef: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.057711] Object 00000000d0ad21e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.065845] Object 00000000f809ef6b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.073819] Object 00000000d4cc2cd0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.081963] Object 00000000445d6b05: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.089909] Object 00000000f991101d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.097788] Object 00000000de83d96c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.105866] Object 00000000fa2acbfa: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.114022] Object 0000000016b28d35: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.121712] Object 00000000580f966c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.129805] Object 000000000153cb7b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.137960] Object 0000000088fcbc6c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 309.145534] Object 0000000093987c62: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
[ 309.153683] Redzone 0000000057ed140d: cc cc cc cc cc cc cc cc ........
[ 309.161265] Padding 000000005a9b402c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 309.169393] Padding 00000000f67c467d: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 309.177451] Padding 000000006b61ac26: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 309.185591] CPU: 1 PID: 6003 Comm: redis-server Kdump: loaded Tainted: G B D O 4.19.72_3upstreamdbg #1
[ 309.194668] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 309.199561] Call Trace:
[ 309.201678] dump_stack+0x9a/0xf0
[ 309.204456] check_bytes_and_report.cold.24+0x3f/0x6b
[ 309.208554] check_object+0x17c/0x280
[ 309.211583] free_debug_processing+0x105/0x2a0
[ 309.215204] ? qlist_free_all+0x37/0xd0
[ 309.218357] ? qlist_free_all+0x37/0xd0
[ 309.221504] __slab_free+0x218/0x3b0
[ 309.224450] ? __free_pages_ok+0x62f/0x840
[ 309.227804] ? _raw_spin_unlock_irqrestore+0x2b/0x40
[ 309.231834] ? qlist_free_all+0x37/0xd0
[ 309.234996] ? trace_hardirqs_on+0x35/0x140
[ 309.238440] ? qlist_free_all+0x37/0xd0
[ 309.241607] qlist_free_all+0x4c/0xd0
[ 309.244682] quarantine_reduce+0x1a2/0x210
[ 309.248101] ? getname_flags+0xba/0x510
[ 309.251282] kasan_kmalloc+0x95/0xc0
[ 309.254298] ? getname_flags+0xba/0x510
[ 309.257467] kmem_cache_alloc+0xc6/0x1d0
[ 309.260690] getname_flags+0xba/0x510
[ 309.263805] do_sys_open+0x149/0x300
[ 309.266760] ? filp_open+0x50/0x50
[ 309.269591] ? do_syscall_64+0x18/0x290
[ 309.272773] do_syscall_64+0x9b/0x290
[ 309.275909] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 309.280046] RIP: 0033:0x7fd116808b7e
[ 309.283065] Code: 89 54 24 08 e8 a3 f4 ff ff 8b 74 24 0c 48 8b 3c 24 41 89 c0 44 8b 54 24 08 b8 01 01 00 00 89 f2 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 30 44 89 c7 89 44 24 08 e8 ce f4 ff ff 8b 44
[ 309.299289] RSP: 002b:00007ffd93eb6030 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[ 309.305350] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd116808b7e
[ 309.311030] RDX: 0000000000000000 RSI: 00007ffd93eb60a0 RDI: 00000000ffffff9c
[ 309.316797] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006
[ 309.322349] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000001000
[ 309.328059] R13: 0000000000000002 R14: 00007fd116222080 R15: 0000000000000001
[ 309.333764] FIX names_cache: Restoring 0x000000001d2ecfa4-0x000000002a22a890=0xcc

[ 309.341073] FIX names_cache: Object at 0x0000000029ff60d9 not freed
[ 313.708858] eth1: dropped over-mtu packet: 1612 > 1500
[ 315.307429] eth1: dropped over-mtu packet: 2515 > 1500
[ 320.378201] =============================================================================
[ 320.383907] BUG vm_area_struct (Tainted: G B D O ): Redzone overwritten
[ 320.388905] -----------------------------------------------------------------------------

[ 320.394971] INFO: 0x00000000c07ff6f2-0x00000000922a1eef. First byte 0x6e instead of 0xcc
[ 320.400704] INFO: Allocated in vm_area_dup+0x1e/0x180 age=4236 cpu=3 pid=8727
[ 320.405838] kmem_cache_alloc+0x1a4/0x1d0
[ 320.408727] vm_area_dup+0x1e/0x180
[ 320.411223] copy_process.part.4+0x2fa9/0x6cd0
[ 320.414277] _do_fork+0x151/0x7a0
[ 320.416538] do_syscall_64+0x9b/0x290
[ 320.419068] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 320.422569] INFO: Freed in qlist_free_all+0x37/0xd0 age=4608 cpu=0 pid=11841
[ 320.427782] quarantine_reduce+0x1a2/0x210
[ 320.430698] kasan_kmalloc+0x95/0xc0
[ 320.433246] kmem_cache_alloc+0xc6/0x1d0
[ 320.435966] vm_area_alloc+0x1b/0xf0
[ 320.438305] mmap_region+0x580/0x1190
[ 320.440673] do_mmap+0x675/0xe20
[ 320.444058] vm_mmap_pgoff+0x163/0x1b0
[ 320.446515] ksys_mmap_pgoff+0x23e/0x590
[ 320.449162] do_syscall_64+0x9b/0x290
[ 320.451625] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 320.454960] INFO: Slab 0x00000000017620bc objects=30 used=7 fp=0x0000000035357a9a flags=0x2ffff0000008101
[ 320.461606] INFO: Object 0x000000004f79ecae @offset=8 fp=0x000000000da6908e

[ 320.466679] Redzone 00000000c07ff6f2: 6e 73 2e 70 79 5c 22 2c ns.py\",
[ 320.472736] Object 000000004f79ecae: 20 6c 69 6e 65 20 36 34 36 2c 20 69 6e 20 73 65 line 646, in se
[ 320.479647] Object 0000000037f06e68: 6e 64 5c 6e 20 20 20 20 72 20 3d 20 61 64 61 70 nd\n r = adap
[ 320.486250] Object 00000000787a17aa: 74 65 72 2e 73 65 6e 64 28 72 65 71 75 65 73 74 ter.send(request
[ 320.492925] Object 000000004e0d15b6: 2c 20 2a 2a 6b 77 61 72 00 00 00 00 00 00 00 00 , **kwar........
[ 320.499449] Object 000000009bdfffbc: 00 f9 f9 3d 83 88 ff ff 25 00 00 00 00 00 00 80 ...=....%.......
[ 320.508725] Object 00000000a1744f46: 71 00 00 00 00 00 00 00 c0 86 64 72 83 88 ff ff q.........dr....
[ 320.515302] Object 0000000025612fc3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 320.521944] Object 00000000c7e51536: 01 00 00 00 00 00 00 00 80 c0 34 62 83 88 ff ff ..........4b....
[ 320.528711] Object 00000000c60fa612: 80 c0 34 62 83 88 ff ff 00 00 00 00 00 00 00 00 ..4b............
[ 320.535411] Object 0000000069262720: 00 3a 94 b0 ff ff ff ff 00 00 00 00 00 00 00 00 .:..............
[ 320.542063] Object 00000000acc3bec2: 40 21 af 63 83 88 ff ff 00 00 00 00 00 00 00 00 @!.c............
[ 320.548806] Object 0000000021f1d4e2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 320.555363] Redzone 000000006f8ed805: cc cc cc cc cc cc cc cc ........
[ 320.561546] Padding 00000000abbb7ef9: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
[ 320.567794] CPU: 2 PID: 12306 Comm: ssh_to_self.sh Kdump: loaded Tainted: G B D O 4.19.72_3upstreamdbg #1
[ 320.575622] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 320.579747] Call Trace:
[ 320.581411] dump_stack+0x9a/0xf0
[ 320.583692] check_bytes_and_report.cold.24+0x3f/0x6b
[ 320.587121] check_object+0x17c/0x280
[ 320.589672] free_debug_processing+0x105/0x2a0
[ 320.592796] ? qlist_free_all+0x37/0xd0
[ 320.595353] ? qlist_free_all+0x37/0xd0
[ 320.597909] __slab_free+0x218/0x3b0
[ 320.600262] ? _raw_spin_unlock_irqrestore+0x2b/0x40
[ 320.603539] ? qlist_free_all+0x37/0xd0
[ 320.606123] ? trace_hardirqs_on+0x35/0x140
[ 320.608957] ? qlist_free_all+0x37/0xd0
[ 320.611603] qlist_free_all+0x4c/0xd0
[ 320.614192] quarantine_reduce+0x1a2/0x210
[ 320.617110] ? vm_area_alloc+0x1b/0xf0
[ 320.619731] kasan_kmalloc+0x95/0xc0
[ 320.622218] ? vm_area_alloc+0x1b/0xf0
[ 320.624775] kmem_cache_alloc+0xc6/0x1d0
[ 320.627391] vm_area_alloc+0x1b/0xf0
[ 320.629809] mmap_region+0x580/0x1190
[ 320.632283] ? vm_brk+0x10/0x10
[ 320.634519] ? security_mmap_addr+0x3f/0x70
[ 320.637357] ? get_unmapped_area+0x1c7/0x350
[ 320.640333] do_mmap+0x675/0xe20
[ 320.642536] ? ecryptfs_fill_auth_tok+0x310/0x310
[ 320.645701] ? security_mmap_file+0xcc/0x140
[ 320.648564] vm_mmap_pgoff+0x163/0x1b0
[ 320.651087] ? vma_is_stack_for_current+0x90/0x90
[ 320.654261] ? do_dup2+0x3f0/0x3f0
[ 320.656610] ? vfs_statx_fd+0x44/0x80
[ 320.659136] ? __se_sys_newfstat+0xba/0xd0
[ 320.661984] ksys_mmap_pgoff+0x23e/0x590
[ 320.664775] ? find_mergeable_anon_vma+0x280/0x280
[ 320.667948] ? trace_hardirqs_off_caller+0x3b/0x140
[ 320.671172] ? do_syscall_64+0x18/0x290
[ 320.673934] do_syscall_64+0x9b/0x290
[ 320.676398] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 320.679836] RIP: 0033:0x7f6a0347c5a3
[ 320.682557] Code: 54 41 89 d4 55 48 89 fd 53 4c 89 cb 48 85 ff 74 4e 49 89 d9 45 89 f8 45 89 f2 44 89 e2 4c 89 ee 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 65 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f
[ 320.697479] RSP: 002b:00007ffc21a28e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 320.702540] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6a0347c5a3
[ 320.707497] RDX: 0000000000000001 RSI: 00000000000085c4 RDI: 0000000000000000
[ 320.712463] RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
[ 320.717185] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001
[ 320.722031] R13: 00000000000085c4 R14: 0000000000000002 R15: 0000000000000004
[ 320.726842] FIX vm_area_struct: Restoring 0x00000000c07ff6f2-0x00000000922a1eef=0xcc

[ 320.732784] FIX vm_area_struct: Object at 0x000000004f79ecae not freed
[ 320.737953] kasan: CONFIG_KASAN_INLINE enabled
[ 320.741662] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 320.747529] general protection fault: 0000 [#2] SMP KASAN PTI
[ 320.752324] CPU: 2 PID: 12306 Comm: ssh_to_self.sh Kdump: loaded Tainted: G B D O 4.19.72_3upstreamdbg #1
[ 320.762087] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 320.767338] RIP: 0010:qlist_free_all+0x80/0xd0
[ 320.771141] Code: df 48 85 db 75 db 48 89 f0 4c 01 f0 72 54 4c 89 fa 48 2b 15 82 d0 5a 02 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 60 d0 5a 02 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb a2 49
[ 320.787525] RSP: 0018:ffff888375c9fb00 EFLAGS: 00010203
[ 320.791949] RAX: 00d0c45f95b9a580 RBX: 0000000000000000 RCX: ffffffffb03cd983
[ 320.797841] RDX: 0000777f80000000 RSI: 343620656e696c20 RDI: 0000000000000000
[ 320.803963] RBP: 343620656e696c20 R08: fffffbfff64886ed R09: fffffbfff64886ec
[ 320.809897] R10: fffffbfff64886ec R11: 0000000000000003 R12: ffffffffae8edc17
[ 320.815595] R13: ffff888375c9fb38 R14: 0000000080000000 R15: ffffffff80000000
[ 320.820564] FS: 0000000000000000(0000) GS:ffff88837ea80000(0000) knlGS:0000000000000000
[ 320.826646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 320.830822] CR2: 00007ffc21a28fa4 CR3: 000000035c05a003 CR4: 00000000001606e0
[ 320.836025] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 320.841145] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 320.846493] Call Trace:
[ 320.848419] quarantine_reduce+0x1a2/0x210
[ 320.851531] ? vm_area_alloc+0x1b/0xf0
[ 320.854182] kasan_kmalloc+0x95/0xc0
[ 320.856560] ? vm_area_alloc+0x1b/0xf0
[ 320.859093] kmem_cache_alloc+0xc6/0x1d0
[ 320.861728] vm_area_alloc+0x1b/0xf0
[ 320.864206] mmap_region+0x580/0x1190
[ 320.866728] ? vm_brk+0x10/0x10
[ 320.868919] ? security_mmap_addr+0x3f/0x70
[ 320.871809] ? get_unmapped_area+0x1c7/0x350
[ 320.874751] do_mmap+0x675/0xe20
[ 320.876934] ? ecryptfs_fill_auth_tok+0x310/0x310
[ 320.880110] ? security_mmap_file+0xcc/0x140
[ 320.882949] vm_mmap_pgoff+0x163/0x1b0
[ 320.885571] ? vma_is_stack_for_current+0x90/0x90
[ 320.888794] ? do_dup2+0x3f0/0x3f0
[ 320.891225] ? vfs_statx_fd+0x44/0x80
[ 320.893791] ? __se_sys_newfstat+0xba/0xd0
[ 320.896672] ksys_mmap_pgoff+0x23e/0x590
[ 320.899360] ? find_mergeable_anon_vma+0x280/0x280
[ 320.902816] ? trace_hardirqs_off_caller+0x3b/0x140
[ 320.905843] ? do_syscall_64+0x18/0x290
[ 320.908184] do_syscall_64+0x9b/0x290
[ 320.910453] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 320.914018] RIP: 0033:0x7f6a0347c5a3
[ 320.916544] Code: 54 41 89 d4 55 48 89 fd 53 4c 89 cb 48 85 ff 74 4e 49 89 d9 45 89 f8 45 89 f2 44 89 e2 4c 89 ee 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 65 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f
[ 320.929816] RSP: 002b:00007ffc21a28e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 320.934899] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6a0347c5a3
[ 320.939780] RDX: 0000000000000001 RSI: 00000000000085c4 RDI: 0000000000000000
[ 320.944638] RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
[ 320.949315] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001
[ 320.954102] R13: 00000000000085c4 R14: 0000000000000002 R15: 0000000000000004
[ 320.958769] Modules linked in: xfrm6_mode_tunnel softdog vhost_net vhost tap openvswitch nsh xt_condition(O) xt_bpf xt_nfacct ipt_rpfilter bpfilter nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 ip6t_ipv6header ip6t_rt ip6t_eui64 ip6t_frag ip6t_mh ip6t_hbh ip6t_ah ip6t_REJECT nf_reject_ipv6 ip6table_mangle ip6table_raw ip6table_filter ip6_tables ebt_ip6 ip_set_hash_net ip_set_hash_ip ip_set xt_u32 xt_time xt_tcpmss xt_string xt_statistic xt_state xt_realm xt_quota xt_policy xt_pkttype xt_physdev xt_multiport xt_mac xt_limit xt_length xt_iprange xt_helper xt_esp xt_dscp xt_dccp xt_conntrack xt_connlimit nf_conncount xt_connbytes xt_comment xt_cluster xt_TRACE xt_TCPOPTSTRIP xt_TCPMSS xt_NFQUEUE xt_NFLOG xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY sch_tbf sch_sfb sch_red sch_qfq sch_prio sch_mqprio
[ 321.010148] sch_ingress sch_htb sch_gred sch_choke sch_cbq nfnetlink_cttimeout nf_nat_tftp nf_nat_snmp_basic asn1_decoder nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ipv6 nf_nat_ftp nf_nat_amanda nf_conntrack_tftp nf_conntrack_snmp nf_conntrack_sane nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_irc nf_conntrack_ftp nf_conntrack_broadcast ts_kmp nf_conntrack_amanda iptable_raw iptable_nat iptable_mangle iptable_filter ipt_ah ipt_REJECT ipt_MASQUERADE ipt_ECN ipt_CLUSTERIP ipip ifb em_u32 em_text em_nbyte em_meta em_cmp ebtable_nat ebtable_filter ebtable_broute ebtables ebt_vlan ebt_stp ebt_snat ebt_redirect ebt_pkttype ebt_nflog ebt_mark_m ebt_mark ebt_log ebt_limit ebt_ip ebt_dnat ebt_arpreply ebt_arp ebt_among ebt_802_3 cls_u32 cls_tcindex
[ 321.058925] cls_route cls_fw cls_cgroup cls_basic arptable_filter arpt_mangle arp_tables act_police act_pedit act_nat act_mirred act_ipt act_gact pcc_cpufreq crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ixgbevf i2c_piix4 intel_rapl_perf
[ 321.073628] ---[ end trace 4a14396e6b248e40 ]---
[ 321.077512] RIP: 0010:qlist_free_all+0x80/0xd0
[ 321.081001] Code: df 48 85 db 75 db 48 89 f0 4c 01 f0 72 54 4c 89 fa 48 2b 15 82 d0 5a 02 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 60 d0 5a 02 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb a2 49
[ 321.096100] RSP: 0018:ffff8882f3cefd48 EFLAGS: 00010203
[ 321.100187] RAX: 00d0c45f95b9a580 RBX: 0000000000000000 RCX: ffffffffae6cad40
[ 321.105462] RDX: 0000777f80000000 RSI: 343620656e696c20 RDI: 0000000000000000
[ 321.110235] RBP: 343620656e696c20 R08: ffffed106fd5be97 R09: ffffed106fd5be96
[ 321.116855] R10: ffffed106fd5be96 R11: ffff88837eadf4b7 R12: ffffffffae8edc17
[ 321.121992] R13: ffff8882f3cefd80 R14: 0000000080000000 R15: ffffffff80000000
[ 321.126896] FS: 0000000000000000(0000) GS:ffff88837ea80000(0000) knlGS:0000000000000000
[ 321.132353] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 321.136398] CR2: 00007ffc21a28fa4 CR3: 000000035c05a003 CR4: 00000000001606e0
[ 321.141482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 321.146430] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400



[ 507.460860] =============================================================================
[ 507.467842] BUG filp (Tainted: G B D O ): Redzone overwritten
[ 507.473148] -----------------------------------------------------------------------------

[ 507.480248] INFO: 0x000000007d719b7b-0x000000006c66d62d. First byte 0x6e instead of 0xbb
[ 507.485978] INFO: Allocated in __alloc_file+0x2b/0x340 age=8119 cpu=0 pid=13295
[ 507.490788] kmem_cache_alloc+0x1a4/0x1d0
[ 507.493819] __alloc_file+0x2b/0x340
[ 507.496558] alloc_empty_file+0x43/0x100
[ 507.499572] path_openat+0x114/0x3f20
[ 507.502356] do_filp_open+0x17c/0x250
[ 507.505189] do_sys_open+0x1db/0x300
[ 507.507943] do_syscall_64+0x9b/0x290
[ 507.510787] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 507.514637] INFO: Freed in qlist_free_all+0x37/0xd0 age=601 cpu=0 pid=8601
[ 507.519935] quarantine_reduce+0x1a2/0x210
[ 507.523255] kasan_kmalloc+0x95/0xc0
[ 507.525968] kmem_cache_alloc+0xc6/0x1d0
[ 507.528944] sock_alloc_inode+0x18/0x220
[ 507.531905] alloc_inode+0x59/0x150
[ 507.534589] new_inode_pseudo+0xc/0xd0
[ 507.537534] sock_alloc+0x3c/0x260
[ 507.540134] __sock_create+0x85/0x4a0
[ 507.542902] __sys_socket+0xd6/0x1b0
[ 507.545597] __x64_sys_socket+0x6f/0xb0
[ 507.548493] do_syscall_64+0x9b/0x290
[ 507.551358] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 507.555158] INFO: Slab 0x00000000eb7c0300 objects=23 used=23 fp=0x (null) flags=0x2ffff0000008100
[ 507.562760] INFO: Object 0x0000000000f72fb5 @offset=64 fp=0x0000000044f349d6

[ 507.568674] Redzone 000000007d719b7b: 6e 73 2e 70 79 5c 22 2c 20 6c 69 6e 65 20 36 34 ns.py\", line 64
[ 507.576141] Redzone 000000008a448ace: 36 2c 20 69 6e 20 73 65 6e 64 5c 6e 20 20 20 20 6, in send\n
[ 507.583755] Redzone 0000000079af1bc6: 72 20 3d 20 61 64 61 70 74 65 72 2e 73 65 6e 64 r = adapter.send
[ 507.591277] Redzone 00000000d20be79e: 28 72 65 71 75 65 73 74 2c 20 2a 2a 6b 77 61 72 (request, **kwar
[ 507.598796] Object 0000000000f72fb5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.606108] Object 000000006d9c0410: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.613503] Object 00000000869bb10b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.621000] Object 0000000021024cb0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.628431] Object 000000004bd5b924: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.635810] Object 00000000baa6db8b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.643062] Object 00000000b0129e9f: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.650360] Object 000000008081619a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.657773] Object 000000007c9879c4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.665107] Object 000000009903c776: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.672513] Object 0000000065122075: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.679983] Object 00000000edf96763: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.687599] Object 0000000010aaaa9a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.695094] Object 000000004bdab3e7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.702421] Object 000000004e6d9293: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 507.709983] Object 00000000a13b86f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
[ 507.717470] Redzone 000000008b2fdb56: bb bb bb bb bb bb bb bb ........
[ 507.724729] Padding 0000000021a7a02a: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 507.732247] Padding 000000000e257ed9: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 507.739868] Padding 00000000938b1d71: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[ 507.747632] CPU: 1 PID: 8601 Comm: snmpd Kdump: loaded Tainted: G B D O 4.19.72_3upstreamdbg #1
[ 507.755901] Hardware name: Xen HVM domU, BIOS 4.2.amazon 08/24/2006
[ 507.760662] Call Trace:
[ 507.762601] dump_stack+0x9a/0xf0
[ 507.765159] check_bytes_and_report.cold.24+0x3f/0x6b
[ 507.769065] check_object+0x17c/0x280
[ 507.771927] ? __alloc_file+0x2b/0x340
[ 507.774908] alloc_debug_processing+0x105/0x170
[ 507.778485] ___slab_alloc+0x4ba/0x530
[ 507.781441] ? __alloc_file+0x2b/0x340
[ 507.784376] ? __d_alloc+0x2a/0xa30
[ 507.787110] ? __alloc_file+0x2b/0x340
[ 507.790040] ? __alloc_file+0x2b/0x340
[ 507.792973] __slab_alloc+0x48/0x90
[ 507.795737] ? __alloc_file+0x2b/0x340
[ 507.798695] kmem_cache_alloc+0x1a4/0x1d0
[ 507.801844] __alloc_file+0x2b/0x340
[ 507.804616] alloc_empty_file+0x43/0x100
[ 507.807590] alloc_file+0x57/0x3d0
[ 507.810168] alloc_file_pseudo+0x15f/0x220
[ 507.813234] ? sock_init_data+0xbb2/0xfe0
[ 507.816315] ? alloc_file+0x3d0/0x3d0
[ 507.819217] ? m_stop+0x20/0x20
[ 507.821692] ? __alloc_fd+0x178/0x410
[ 507.824584] sock_alloc_file+0x39/0x160
[ 507.827478] __sys_socket+0x102/0x1b0
[ 507.829618] ? trace_hardirqs_on+0x35/0x140
[ 507.832059] ? move_addr_to_kernel+0x20/0x20
[ 507.834561] ? trace_hardirqs_off_caller+0x3b/0x140
[ 507.837397] ? do_syscall_64+0x18/0x290
[ 507.839663] __x64_sys_socket+0x6f/0xb0
[ 507.841911] do_syscall_64+0x9b/0x290
[ 507.844066] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 507.846904] RIP: 0033:0x7fa5f2669bf7
[ 507.848984] Code: 73 01 c3 48 8b 0d 99 02 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 69 02 0c 00 f7 d8 64 89 01 48
[ 507.860003] RSP: 002b:00007ffeb7319288 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
[ 507.864251] RAX: ffffffffffffffda RBX: 00007ffeb7319381 RCX: 00007fa5f2669bf7
[ 507.868214] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002
[ 507.872141] RBP: 00007ffeb73192c0 R08: 000000000165dd9e R09: 0000000000000000
[ 507.876186] R10: 00007fa5f2544740 R11: 0000000000000246 R12: 00000000ffffffff
[ 507.880208] R13: 0000000000008933 R14: 0000000000000000 R15: 00007ffeb7319386
[ 507.884198] FIX filp: Restoring 0x000000007d719b7b-0x000000006c66d62d=0xbb

[ 507.888502] FIX filp: Marking all objects used

Best regards,
 Jakub.