syzkaller
syzkaller login: [ 9.763451][ T109] udevd (109) used greatest stack depth: 22888 bytes left
[ 14.780981][ T30] kauditd_printk_skb: 31 callbacks suppressed
[ 14.781004][ T30] audit: type=1400 audit(1782142404.702:59): avc: denied { transition } for pid=223 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 14.793835][ T30] audit: type=1400 audit(1782142404.702:60): avc: denied { noatsecure } for pid=223 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 14.805439][ T30] audit: type=1400 audit(1782142404.712:61): avc: denied { write } for pid=223 comm="sh" path="pipe:[13858]" dev="pipefs" ino=13858 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[ 14.836049][ T220] sshd-session (220) used greatest stack depth: 22184 bytes left
[ 14.845477][ T30] audit: type=1400 audit(1782142404.712:62): avc: denied { rlimitinh } for pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 14.864472][ T30] audit: type=1400 audit(1782142404.712:63): avc: denied { siginh } for pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.1.75' (ED25519) to the list of known hosts.
2026/06/22 15:33:35 parsed 1 programs
2026/06/22 15:33:35 serving rpc on tcp://34059
[ 25.109031][ T30] audit: type=1400 audit(1782142415.022:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1
[ 25.130469][ T30] audit: type=1400 audit(1782142415.022:65): avc: denied { module_request } for pid=293 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1
[ 26.139718][ T30] audit: type=1400 audit(1782142416.052:66): avc: denied { mounton } for pid=299 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 26.143476][ T299] cgroup: Unknown subsys name 'net'
[ 26.162896][ T30] audit: type=1400 audit(1782142416.052:67): avc: denied { mount } for pid=299 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 26.190849][ T30] audit: type=1400 audit(1782142416.092:68): avc: denied { unmount } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 26.191329][ T299] cgroup: Unknown subsys name 'devices'
[ 26.365723][ T299] cgroup: Unknown subsys name 'hugetlb'
[ 26.371588][ T299] cgroup: Unknown subsys name 'rlimit'
[ 26.520221][ T30] audit: type=1400 audit(1782142416.432:69): avc: denied { setattr } for pid=299 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 26.544010][ T30] audit: type=1400 audit(1782142416.432:70): avc: denied { create } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 26.564751][ T30] audit: type=1400 audit(1782142416.432:71): avc: denied { write } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 26.583918][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 26.585717][ T30] audit: type=1400 audit(1782142416.432:72): avc: denied { read } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
Setting up swapspace version 1, size = 127995904 bytes
[ 26.614781][ T30] audit: type=1400 audit(1782142416.442:73): avc: denied { mounton } for pid=299 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 26.650100][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 27.138954][ T309] request_module fs-gadgetfs succeeded, but still no fs?
[ 27.359140][ T326] bridge0: port 1(bridge_slave_0) entered blocking state
[ 27.366749][ T326] bridge0: port 1(bridge_slave_0) entered disabled state
[ 27.374554][ T326] device bridge_slave_0 entered promiscuous mode
[ 27.381687][ T326] bridge0: port 2(bridge_slave_1) entered blocking state
[ 27.388782][ T326] bridge0: port 2(bridge_slave_1) entered disabled state
[ 27.396540][ T326] device bridge_slave_1 entered promiscuous mode
[ 27.440045][ T326] bridge0: port 2(bridge_slave_1) entered blocking state
[ 27.447672][ T326] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 27.455326][ T326] bridge0: port 1(bridge_slave_0) entered blocking state
[ 27.462934][ T326] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 27.483333][ T44] bridge0: port 1(bridge_slave_0) entered disabled state
[ 27.490732][ T44] bridge0: port 2(bridge_slave_1) entered disabled state
[ 27.498999][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 27.506760][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 27.515831][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 27.524355][ T44] bridge0: port 1(bridge_slave_0) entered blocking state
[ 27.531388][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 27.541865][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 27.550129][ T44] bridge0: port 2(bridge_slave_1) entered blocking state
[ 27.557414][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 27.574637][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 27.582601][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 27.594753][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 27.606256][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 27.614894][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 27.622468][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 27.630944][ T326] device veth0_vlan entered promiscuous mode
[ 27.641827][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 27.650957][ T326] device veth1_macvtap entered promiscuous mode
[ 27.660257][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 27.670847][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 27.702470][ T326] syz-executor (326) used greatest stack depth: 21536 bytes left
2026/06/22 15:33:38 executed programs: 0
[ 28.440706][ T10] device bridge_slave_1 left promiscuous mode
[ 28.453117][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 28.461332][ T10] device bridge_slave_0 left promiscuous mode
[ 28.467751][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 28.476126][ T10] device veth1_macvtap left promiscuous mode
[ 28.482334][ T10] device veth0_vlan left promiscuous mode
[ 28.617197][ T369] bridge0: port 1(bridge_slave_0) entered blocking state
[ 28.625020][ T369] bridge0: port 1(bridge_slave_0) entered disabled state
[ 28.632473][ T369] device bridge_slave_0 entered promiscuous mode
[ 28.639520][ T369] bridge0: port 2(bridge_slave_1) entered blocking state
[ 28.646580][ T369] bridge0: port 2(bridge_slave_1) entered disabled state
[ 28.654239][ T369] device bridge_slave_1 entered promiscuous mode
[ 28.699210][ T369] bridge0: port 2(bridge_slave_1) entered blocking state
[ 28.706604][ T369] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 28.714189][ T369] bridge0: port 1(bridge_slave_0) entered blocking state
[ 28.721449][ T369] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 28.740672][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 28.748724][ T44] bridge0: port 1(bridge_slave_0) entered disabled state
[ 28.756452][ T44] bridge0: port 2(bridge_slave_1) entered disabled state
[ 28.766000][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 28.774485][ T44] bridge0: port 1(bridge_slave_0) entered blocking state
[ 28.781627][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 28.790402][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 28.798879][ T44] bridge0: port 2(bridge_slave_1) entered blocking state
[ 28.806173][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 28.820357][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 28.830193][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 28.847281][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 28.860730][ T369] device veth0_vlan entered promiscuous mode
[ 28.867956][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 28.877113][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 28.885402][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 28.898032][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 28.907592][ T369] device veth1_macvtap entered promiscuous mode
[ 28.918140][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 28.929120][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 28.956034][ T373] ==================================================================
[ 28.964459][ T373] BUG: KASAN: use-after-free in pppol2tp_sock_to_session+0x1a0/0x1b0
[ 28.973066][ T373] Read of size 4 at addr ffff88811e474400 by task syz.2.17/373
[ 28.981405][ T373]
[ 28.983753][ T373] CPU: 1 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0
[ 28.990887][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[ 29.001051][ T373] Call Trace:
[ 29.004618][ T373]
[ 29.007672][ T373] __dump_stack+0x21/0x30
[ 29.012014][ T373] dump_stack_lvl+0x110/0x170
[ 29.016808][ T373] ? show_regs_print_info+0x20/0x20
[ 29.022034][ T373] ? load_image+0x3f0/0x3f0
[ 29.026733][ T373] ? __local_bh_enable_ip+0x58/0x80
[ 29.031946][ T373] print_address_description+0x7f/0x2c0
[ 29.037820][ T373] ? pppol2tp_sock_to_session+0x1a0/0x1b0
[ 29.043940][ T373] kasan_report+0x10f/0x150
[ 29.049093][ T373] ? pppol2tp_sock_to_session+0x1a0/0x1b0
[ 29.055027][ T373] __asan_report_load4_noabort+0x14/0x20
[ 29.060760][ T373] pppol2tp_sock_to_session+0x1a0/0x1b0
[ 29.066553][ T373] pppol2tp_release+0x150/0x2b0
[ 29.071519][ T373] sock_close+0xb8/0x200
[ 29.075772][ T373] ? sock_mmap+0xa0/0xa0
[ 29.080466][ T373] __fput+0x22b/0x900
[ 29.084686][ T373] ____fput+0x15/0x20
[ 29.088679][ T373] task_work_run+0x127/0x190
[ 29.093387][ T373] exit_to_user_mode_loop+0xd0/0xe0
[ 29.098622][ T373] exit_to_user_mode_prepare+0x87/0xd0
[ 29.104210][ T373] syscall_exit_to_user_mode+0x1a/0x30
[ 29.109828][ T373] do_syscall_64+0x58/0xa0
[ 29.114259][ T373] ? clear_bhb_loop+0x50/0xa0
[ 29.118943][ T373] ? clear_bhb_loop+0x50/0xa0
[ 29.123631][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 29.129917][ T373] RIP: 0033:0x7f1186a1de59
[ 29.134616][ T373] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 29.154530][ T373] RSP: 002b:00007ffec5d6db58 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
[ 29.162952][ T373] RAX: 0000000000000000 RBX: 00007ffec5d6dc40 RCX: 00007f1186a1de59
[ 29.171110][ T373] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
[ 29.179110][ T373] RBP: 00000000000070f8 R08: 0000000000000001 R09: 0000000000000000
[ 29.187303][ T373] R10: 0000001b33020000 R11: 0000000000000246 R12: 00007ffec5d6dc80
[ 29.195780][ T373] R13: 00007f1186c96fac R14: 000000000000712c R15: 00007f1186c96fa0
[ 29.203866][ T373]
[ 29.207006][ T373]
[ 29.209346][ T373] Allocated by task 374:
[ 29.213601][ T373] __kasan_kmalloc+0xd4/0x100
[ 29.218831][ T373] __kmalloc+0x13d/0x2c0
[ 29.223322][ T373] l2tp_session_create+0x39/0xb60
[ 29.228564][ T373] pppol2tp_connect+0xbf5/0x1640
[ 29.233696][ T373] __sys_connect+0x3cb/0x450
[ 29.238402][ T373] __x64_sys_connect+0x7a/0x90
[ 29.243272][ T373] x64_sys_call+0x7c/0x9a0
[ 29.247829][ T373] do_syscall_64+0x4c/0xa0
[ 29.252629][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 29.258627][ T373]
[ 29.260970][ T373] Freed by task 44:
[ 29.264903][ T373] kasan_set_track+0x4a/0x70
[ 29.269615][ T373] kasan_set_free_info+0x23/0x40
[ 29.275090][ T373] ____kasan_slab_free+0x125/0x160
[ 29.280414][ T373] __kasan_slab_free+0x11/0x20
[ 29.285299][ T373] slab_free_freelist_hook+0xc2/0x190
[ 29.290953][ T373] kfree+0xc4/0x270
[ 29.294783][ T373] l2tp_session_put+0xaf/0x1a0
[ 29.299570][ T373] l2tp_session_delete+0x3a9/0x4a0
[ 29.304914][ T373] l2tp_tunnel_del_work+0x180/0x3d0
[ 29.310357][ T373] process_one_work+0x6c8/0xbb0
[ 29.315496][ T373] worker_thread+0xaa0/0x1250
[ 29.320731][ T373] kthread+0x3f5/0x4f0
[ 29.324906][ T373] ret_from_fork+0x1f/0x30
[ 29.329339][ T373]
[ 29.331693][ T373] The buggy address belongs to the object at ffff88811e474400
[ 29.331693][ T373] which belongs to the cache kmalloc-512 of size 512
[ 29.345953][ T373] The buggy address is located 0 bytes inside of
[ 29.345953][ T373] 512-byte region [ffff88811e474400, ffff88811e474600)
[ 29.359300][ T373] The buggy address belongs to the page:
[ 29.365046][ T373] page:ffffea0004791d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e474
[ 29.375479][ T373] head:ffffea0004791d00 order:2 compound_mapcount:0 compound_pincount:0
[ 29.384031][ T373] flags: 0x4000000000010200(slab|head|zone=1)
[ 29.390209][ T373] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00
[ 29.398987][ T373] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 29.407842][ T373] page dumped because: kasan: bad access detected
[ 29.414941][ T373] page_owner tracks the page as allocated
[ 29.421147][ T373] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 369, ts 28942250003, free_ts 16357320186
[ 29.442000][ T373] post_alloc_hook+0x192/0x1b0
[ 29.446806][ T373] prep_new_page+0x1c/0x110
[ 29.451500][ T373] get_page_from_freelist+0x2c3a/0x2cd0
[ 29.457322][ T373] __alloc_pages+0x1a2/0x460
[ 29.462201][ T373] new_slab+0xa0/0x4d0
[ 29.466663][ T373] ___slab_alloc+0x3ac/0x840
[ 29.471454][ T373] __slab_alloc+0x49/0x90
[ 29.476069][ T373] __kmalloc_track_caller+0x169/0x2c0
[ 29.481560][ T373] __alloc_skb+0x210/0x730
[ 29.486252][ T373] netlink_ack+0x35c/0xb10
[ 29.490833][ T373] netlink_rcv_skb+0x267/0x430
[ 29.495654][ T373] rtnetlink_rcv+0x1c/0x20
[ 29.500163][ T373] netlink_unicast+0x86c/0xa30
[ 29.504946][ T373] netlink_sendmsg+0x879/0xb80
[ 29.509727][ T373] __sys_sendto+0x46d/0x620
[ 29.514241][ T373] __x64_sys_sendto+0xe5/0x100
[ 29.519213][ T373] page last free stack trace:
[ 29.523980][ T373] free_unref_page_prepare+0x5fa/0x600
[ 29.529556][ T373] free_unref_page+0xae/0x540
[ 29.534432][ T373] free_compound_page+0x78/0xa0
[ 29.539330][ T373] __put_compound_page+0x77/0xb0
[ 29.544296][ T373] __put_page+0xbc/0xe0
[ 29.548474][ T373] skb_release_data+0x37c/0xa20
[ 29.553624][ T373] __kfree_skb+0x50/0x70
[ 29.557980][ T373] tcp_recvmsg_locked+0x13d1/0x24f0
[ 29.563379][ T373] tcp_recvmsg+0x233/0x770
[ 29.567812][ T373] inet_recvmsg+0x13a/0x470
[ 29.572449][ T373] sock_read_iter+0x2c2/0x380
[ 29.577232][ T373] vfs_read+0x6c0/0xc20
[ 29.581654][ T373] ksys_read+0x14a/0x260
[ 29.585916][ T373] __x64_sys_read+0x7b/0x90
[ 29.590842][ T373] x64_sys_call+0x96d/0x9a0
[ 29.595808][ T373] do_syscall_64+0x4c/0xa0
[ 29.600347][ T373]
[ 29.602688][ T373] Memory state around the buggy address:
[ 29.608417][ T373] ffff88811e474300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 29.616857][ T373] ffff88811e474380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 29.625271][ T373] >ffff88811e474400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 29.633520][ T373] ^
[ 29.637702][ T373] ffff88811e474480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 29.646069][ T373] ffff88811e474500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 29.654253][ T373] ==================================================================
[ 29.662585][ T373] Disabling lock debugging due to kernel taint
[ 29.673053][ T373] ------------[ cut here ]------------
[ 29.679913][ T373] WARNING: CPU: 1 PID: 373 at net/l2tp/l2tp_ppp.c:156 pppol2tp_sock_to_session+0x167/0x1b0
[ 29.690377][ T373] Modules linked in:
[ 29.694598][ T373] CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G B syzkaller #0
[ 29.703305][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[ 29.713913][ T373] RIP: 0010:pppol2tp_sock_to_session+0x167/0x1b0
[ 29.720665][ T373] Code: 5d c3 e8 cc ee 0b fd be 02 00 00 00 eb 0a e8 c0 ee 0b fd be 01 00 00 00 4c 89 f7 e8 43 5e f2 fd e9 0f ff ff ff e8 a9 ee 0b fd <0f> 0b 48 89 df e8 ef 00 00 00 eb bd e8 98 ee 0b fd 4c 89 f7 be 03
[ 29.741158][ T373] RSP: 0018:ffffc90000b07d10 EFLAGS: 00010293
[ 29.747783][ T373] RAX: ffffffff845dbd07 RBX: ffff8881124c1000 RCX: ffff8881124bcf00
[ 29.756146][ T373] RDX: 0000000000000000 RSI: 00000000073fe8c0 RDI: 000000000c04eb7d
[ 29.764480][ T373] RBP: ffffc90000b07d30 R08: 0000000000000003 R09: 0000000000000004
[ 29.772794][ T373] R10: dffffc0000000000 R11: fffffbfff0e18c4c R12: dffffc0000000000
[ 29.782093][ T373] R13: dffffc0000000000 R14: 00000000073fe8c0 R15: ffff88811e474400
[ 29.790511][ T373] FS: 000055556e2e6500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 29.800021][ T373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 29.806701][ T373] CR2: 00007f1186c68300 CR3: 00000001255ff000 CR4: 00000000003506b0
[ 29.815585][ T373] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 29.823963][ T373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 29.832173][ T373] Call Trace:
[ 29.835768][ T373]
[ 29.838798][ T373] pppol2tp_release+0x150/0x2b0
[ 29.844144][ T373] sock_close+0xb8/0x200
[ 29.848458][ T373] ? sock_mmap+0xa0/0xa0
[ 29.852845][ T373] __fput+0x22b/0x900
[ 29.856984][ T373] ____fput+0x15/0x20
[ 29.861182][ T373] task_work_run+0x127/0x190
[ 29.865875][ T373] exit_to_user_mode_loop+0xd0/0xe0
[ 29.871223][ T373] exit_to_user_mode_prepare+0x87/0xd0
[ 29.877030][ T373] syscall_exit_to_user_mode+0x1a/0x30
[ 29.882812][ T373] do_syscall_64+0x58/0xa0
[ 29.887501][ T373] ? clear_bhb_loop+0x50/0xa0
[ 29.892511][ T373] ? clear_bhb_loop+0x50/0xa0
[ 29.897691][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 29.903791][ T373] RIP: 0033:0x7f1186a1de59
[ 29.908447][ T373] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 29.928881][ T373] RSP: 002b:00007ffec5d6db58 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
[ 29.937839][ T373] RAX: 0000000000000000 RBX: 00007ffec5d6dc40 RCX: 00007f1186a1de59
[ 29.947237][ T373] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
[ 29.955391][ T373] RBP: 00000000000070f8 R08: 0000000000000001 R09: 0000000000000000
[ 29.964119][ T373] R10: 0000001b33020000 R11: 0000000000000246 R12: 00007ffec5d6dc80
[ 29.972418][ T373] R13: 00007f1186c96fac R14: 000000000000712c R15: 00007f1186c96fa0
[ 29.981240][ T373]
[ 29.984979][ T373] ---[ end trace 56b9e86385b4085b ]---