BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor2/14956 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 14950 Comm: syz-executor0 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 5fe2afe21158b40c ffff8800b78bf5f0 ffffffff81d028ed ffff8800b7389800 1ffff10016f17ecb ffff8800b78bf778 0000000000000000 0000000000000000 ffff8800b78bf7a0 ffffffff81605ec5 ffffffff81236530 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] handle_userfault+0x715/0xf50 fs/userfaultfd.c:316 [] do_anonymous_page mm/memory.c:2731 [inline] [] handle_pte_fault mm/memory.c:3295 [inline] [] __handle_mm_fault mm/memory.c:3426 [inline] [] handle_mm_fault+0x2938/0x3190 mm/memory.c:3455 [] __do_page_fault+0x35b/0xa00 arch/x86/mm/fault.c:1245 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1033 [] C_SYSC_ioctl fs/compat_ioctl.c:1592 [inline] [] compat_SyS_ioctl+0x28a/0x2540 fs/compat_ioctl.c:1544 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 14936 Comm: syz-executor0 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 97986dd60b442e01 ffff8800b26cf9a0 ffffffff81d028ed ffff8800b7389800 1ffff100164d9f41 ffff8800b26cfb28 0000000000000000 0000000000000000 ffff8800b26cfb50 ffffffff81605ec5 ffffffff81236530 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] handle_userfault+0x715/0xf50 fs/userfaultfd.c:316 [] do_anonymous_page mm/memory.c:2731 [inline] [] handle_pte_fault mm/memory.c:3295 [inline] [] __handle_mm_fault mm/memory.c:3426 [inline] [] handle_mm_fault+0x2938/0x3190 mm/memory.c:3455 [] __do_page_fault+0x35b/0xa00 arch/x86/mm/fault.c:1245 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1033 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 14961 Comm: syz-executor0 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 6b2f9410b329e961 ffff8801d8bcf5f0 ffffffff81d028ed ffff8800b7389b00 1ffff1003b179ecb ffff8801d8bcf778 0000000000000000 0000000000000000 ffff8801d8bcf7a0 ffffffff81605ec5 ffffffff81236530 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] handle_userfault+0x715/0xf50 fs/userfaultfd.c:316 [] do_anonymous_page mm/memory.c:2731 [inline] [] handle_pte_fault mm/memory.c:3295 [inline] [] __handle_mm_fault mm/memory.c:3426 [inline] [] handle_mm_fault+0x2938/0x3190 mm/memory.c:3455 [] __do_page_fault+0x35b/0xa00 arch/x86/mm/fault.c:1245 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1033 [] C_SYSC_ioctl fs/compat_ioctl.c:1592 [inline] [] compat_SyS_ioctl+0x28a/0x2540 fs/compat_ioctl.c:1544 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 14936 Comm: syz-executor0 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 97986dd60b442e01 ffff8800b26cf9a0 ffffffff81d028ed ffff8800b7389b00 1ffff100164d9f41 ffff8800b26cfb28 0000000000000000 0000000000000000 ffff8800b26cfb50 ffffffff81605ec5 ffffffff81236530 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] handle_userfault+0x715/0xf50 fs/userfaultfd.c:316 [] do_anonymous_page mm/memory.c:2731 [inline] [] handle_pte_fault mm/memory.c:3295 [inline] [] __handle_mm_fault mm/memory.c:3426 [inline] [] handle_mm_fault+0x2938/0x3190 mm/memory.c:3455 [] __do_page_fault+0x35b/0xa00 arch/x86/mm/fault.c:1245 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1033 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 1 PID: 14956 Comm: syz-executor2 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 3cddbc7d67473983 ffff8801d7e6f648 ffffffff81d028ed 0000000000000001 ffffffff839fe3a0 ffffffff83cef6a0 ffff8800ab4e2f80 0000000000000003 ffff8801d7e6f688 ffffffff81d62834 ffffffff810002b8 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46 [] ? 0xffffffff810002b8 [] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 [] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278 [] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485 [] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531 [] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962 [] __sys_sendmsg+0xd3/0x190 net/socket.c:1996 [] C_SYSC_sendmsg net/compat.c:720 [inline] [] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:718 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 audit: type=1400 audit(1517309576.842:47): avc: denied { create } for pid=15046 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 audit: type=1400 audit(1517309576.912:48): avc: denied { create } for pid=15046 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20018. Sending cookies. Check SNMP counters. audit: type=1400 audit(1517309577.852:49): avc: denied { create } for pid=15204 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1517309577.922:50): avc: denied { create } for pid=15204 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1517309577.922:51): avc: denied { bind } for pid=15204 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1517309578.362:52): avc: denied { create } for pid=15281 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1517309578.452:53): avc: denied { create } for pid=15281 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2570 sclass=netlink_route_socket audit: type=1400 audit(1517309578.532:54): avc: denied { create } for pid=15312 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_scsitransport_socket permissive=1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2570 sclass=netlink_route_socket audit: type=1400 audit(1517309578.592:55): avc: denied { create } for pid=15312 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_scsitransport_socket permissive=1 audit: type=1400 audit(1517309578.732:56): avc: denied { create } for pid=15355 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 IPv4: Oversized IP packet from 127.0.0.1 SELinux: policydb version 1119089356 does not match my version range 15-30 SELinux: policydb version 1119089356 does not match my version range 15-30 binder: BINDER_SET_CONTEXT_MGR already set binder: 15520:15521 ioctl 40046207 0 returned -16 netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor1'. binder: 16032:16043 ERROR: BC_REGISTER_LOOPER called without request audit_printk_skb: 90 callbacks suppressed audit: type=1400 audit(1517309582.242:88): avc: denied { create } for pid=16062 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 binder: 16032:16060 BC_REQUEST_DEATH_NOTIFICATION invalid ref 1 audit: type=1400 audit(1517309582.202:87): avc: denied { set_context_mgr } for pid=16032 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 binder: BINDER_SET_CONTEXT_MGR already set binder: 16032:16043 ioctl 40046207 0 returned -16 binder: 16032:16038 ERROR: BC_REGISTER_LOOPER called without request audit: type=1400 audit(1517309582.242:89): avc: denied { call } for pid=16032 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 binder_alloc: 16032: binder_alloc_buf, no vma binder: 16032:16043 transaction failed 29189/-3, size 0-0 line 3128 audit: type=1400 audit(1517309582.322:90): avc: denied { set_context_mgr } for pid=16074 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 binder: undelivered TRANSACTION_ERROR: 29189 audit: type=1400 audit(1517309582.442:91): avc: denied { create } for pid=16062 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1517309582.472:92): avc: denied { write } for pid=16062 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1517309582.962:93): avc: denied { create } for pid=16111 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 audit: type=1400 audit(1517309583.072:94): avc: denied { create } for pid=16111 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 audit: type=1400 audit(1517309583.252:95): avc: denied { set_context_mgr } for pid=16171 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 audit: type=1400 audit(1517309583.332:96): avc: denied { call } for pid=16171 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 binder: 16171:16187 transaction failed 29201/-22, size 625--105 line 3128 binder_alloc: binder_alloc_mmap_handler: 16171 20265000-20279000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 16171: binder_alloc_buf, no vma binder: 16171:16180 ioctl 40046207 0 returned -16 binder: 16171:16187 transaction failed 29189/-3, size 625--105 line 3128 SELinux: policydb magic number 0x54a4571a does not match expected magic number 0xf97cff8c device syz4 entered promiscuous mode SELinux: policydb magic number 0x54a4571a does not match expected magic number 0xf97cff8c device syz4 left promiscuous mode netlink: 7 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 7 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 7 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 7 bytes leftover after parsing attributes in process `syz-executor6'. binder: 16524:16528 ioctl c0306201 20008000 returned -11 binder: 16524:16528 BC_CLEAR_DEATH_NOTIFICATION invalid ref 2 binder: 16524:16528 ioctl c0306201 200e0000 returned -11 binder_alloc: binder_alloc_mmap_handler: 16524 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 16524:16528 ioctl 40046207 0 returned -16 binder_alloc: 16524: binder_alloc_buf, no vma binder: 16524:16533 transaction failed 29189/-3, size 40-8 line 3128 binder: 16524:16533 BC_CLEAR_DEATH_NOTIFICATION invalid ref 2 binder: 16524:16533 ioctl c0306201 200e0000 returned -11 binder: release 16524:16528 transaction 100 out, still active binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 100, target dead