flags: 0x2fffc0000000000() raw: 02fffc0000000000 dead000000000100 dead000000000200 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:925! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17277 Comm: syz-executor0 Not tainted 4.19.0-rc6+ #51 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_page include/linux/mm.h:925 [inline] RIP: 0010:do_tcp_sendpages+0x1854/0x1dc0 net/ipv4/tcp.c:1001 Code: ff ff 48 83 e8 01 48 89 85 b8 fd ff ff e9 99 fa ff ff e8 8f c6 01 fb 48 8b bd b8 fd ff ff 48 c7 c6 80 e6 9f 88 e8 cc 76 33 fb <0f> 0b 48 89 85 08 fe ff ff e8 6e c6 01 fb 48 8b 85 08 fe ff ff 4c RSP: 0018:ffff88017f11f510 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801c6000300 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81b097e9 RDI: ffffed002fe23e93 RBP: ffff88017f11f770 R08: ffff88018b8f4500 R09: fffffbfff12720fc R10: fffffbfff12720fc R11: ffffffff893907e3 R12: 000000000000303a R13: ffffea000623aa34 R14: dffffc0000000000 R15: ffff880188086700 FS: 00000000025e6940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000188a28000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tls_push_sg+0x283/0x8c0 net/tls/tls_main.c:118 tls_push_record+0xb4d/0x1480 net/tls/tls_sw.c:245 tls_sw_push_pending_record+0x22/0x30 net/tls/tls_sw.c:257 tls_handle_open_record net/tls/tls_main.c:156 [inline] tls_sk_proto_close+0x69c/0xbb0 net/tls/tls_main.c:271 inet_release+0x104/0x1f0 net/ipv4/af_inet.c:428 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:457 __sock_release+0xd7/0x250 net/socket.c:579 sock_close+0x19/0x20 net/socket.c:1141 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411051 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe7dd5c390 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411051 RDX: 0000000000000000 RSI: 0000000000732220 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000000001645fad6 R09: 000000001645fada R10: 00007ffe7dd5c2c0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000000f5 R15: 0000000000000000 Modules linked in: kobject: 'loop5' (00000000da594aa9): kobject_uevent_env kobject: 'loop5' (00000000da594aa9): fill_kobj_path: path = '/devices/virtual/block/loop5' ---[ end trace 090d71db6c74358e ]--- RIP: 0010:get_page include/linux/mm.h:925 [inline] RIP: 0010:do_tcp_sendpages+0x1854/0x1dc0 net/ipv4/tcp.c:1001 Code: ff ff 48 83 e8 01 48 89 85 b8 fd ff ff e9 99 fa ff ff e8 8f c6 01 fb 48 8b bd b8 fd ff ff 48 c7 c6 80 e6 9f 88 e8 cc 76 33 fb <0f> 0b 48 89 85 08 fe ff ff e8 6e c6 01 fb 48 8b 85 08 fe ff ff 4c kobject: 'loop3' (000000002b4dbfcf): kobject_uevent_env kobject: 'loop3' (000000002b4dbfcf): fill_kobj_path: path = '/devices/virtual/block/loop3' RSP: 0018:ffff88017f11f510 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801c6000300 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81b097e9 RDI: ffffed002fe23e93 RBP: ffff88017f11f770 R08: ffff88018b8f4500 R09: fffffbfff12720fc R10: fffffbfff12720fc R11: ffffffff893907e3 R12: 000000000000303a R13: ffffea000623aa34 R14: dffffc0000000000 R15: ffff880188086700 FS: 00000000025e6940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop3' (000000002b4dbfcf): kobject_uevent_env kobject: 'loop3' (000000002b4dbfcf): fill_kobj_path: path = '/devices/virtual/block/loop3' CR2: 00000000004cfc70 CR3: 0000000188a28000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400