ALSA: seq fatal error: cannot create timer (-19) ================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801cc1e5bf0 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801cc1e5bf0 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801cc1e5bf0 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801cc1e5bf0 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801cc1e5bf0 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801cc1e5bf0 Read of size 8 by task syz-executor4/8601 CPU: 1 PID: 8601 Comm: syz-executor4 Not tainted 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801aa52fd88 ffffffff81d90429 ffff8801da155140 ffff8801cc1e5ba0 ffff8801cc1e5c58 ffffed003983cb7e ffff8801cc1e5bf0 ffff8801aa52fdb0 ffffffff8153a3ac ffffed003983cb7e ffff8801da155140 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] static_key_count include/linux/jump_label.h:174 [inline] [] static_key_false include/linux/jump_label.h:184 [inline] [] perf_sw_event include/linux/perf_event.h:1039 [inline] [] __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 Object at ffff8801cc1e5ba0, in cache vm_area_struct size: 184 Allocated: PID = 8601 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 kmem_cache_zalloc include/linux/slab.h:626 [inline] mmap_region+0x587/0xfd0 mm/mmap.c:1662 do_mmap+0x57b/0xbe0 mm/mmap.c:1473 do_mmap_pgoff include/linux/mm.h:2018 [inline] vm_mmap_pgoff+0x16b/0x1b0 mm/util.c:305 SYSC_mmap_pgoff mm/mmap.c:1523 [inline] SyS_mmap_pgoff+0xd0/0x560 mm/mmap.c:1481 SYSC_mmap arch/x86/kernel/sys_x86_64.c:95 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:86 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 8613 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 remove_vma+0x11d/0x160 mm/mmap.c:175 remove_vma_list mm/mmap.c:2482 [inline] do_munmap+0x7ff/0xeb0 mm/mmap.c:2705 mmap_region+0x14d/0xfd0 mm/mmap.c:1635 do_mmap+0x57b/0xbe0 mm/mmap.c:1473 do_mmap_pgoff include/linux/mm.h:2018 [inline] vm_mmap_pgoff+0x16b/0x1b0 mm/util.c:305 SYSC_mmap_pgoff mm/mmap.c:1523 [inline] SyS_mmap_pgoff+0xd0/0x560 mm/mmap.c:1481 SYSC_mmap arch/x86/kernel/sys_x86_64.c:95 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:86 entry_SYSCALL_64_fastpath+0x23/0xc6 Memory state around the buggy address: ffff8801cc1e5a80: fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb ffff8801cc1e5b00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801cc1e5b80: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801cc1e5c00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc ffff8801cc1e5c80: fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ALSA: seq fatal error: cannot create timer (-19) 9pnet_virtio: no channels available for device H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H 9pnet_virtio: no channels available for device H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 8699 Comm: syz-executor5 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cbd1f980 ffffffff81d90429 ffff8801cbd1fc60 0000000000000000 ffff8801c696b790 ffff8801cbd1fb50 ffff8801c696b680 ffff8801cbd1fb78 ffffffff8165e3c7 1ffff1003b6442a4 ffff8801cbd1fad0 00000001c6a0b067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 8694 Comm: syz-executor5 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d99578d0 ffffffff81d90429 ffff8801d9957bb0 0000000000000000 ffff8801c696b790 ffff8801d9957aa0 ffff8801c696b680 ffff8801d9957ac8 ffffffff8165e3c7 ffff8801d9957938 ffff8801d9957a20 00000001c6a0b067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 nla_parse: 10 callbacks suppressed netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. binder: 8729:8735 ioctl c058534b 20ff1000 returned -22 binder: 8729:8741 ioctl c058534b 20ff1000 returned -22 device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode netlink: 9 bytes leftover after parsing attributes in process `syz-executor6'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. netlink: 9 bytes leftover after parsing attributes in process `syz-executor6'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. binder: 8866:8868 ioctl 541c 20647000 returned -22 binder: 8866:8872 ioctl 541c 20647000 returned -22 binder: 8880:8887 ioctl 8918 20003fe8 returned -22 program syz-executor5 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 binder: 8880:8887 ioctl 5411 20000ffc returned -22 binder: 8880:8902 ioctl 8918 20003fe8 returned -22 program syz-executor5 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 netlink: 22 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 22 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. sg_write: data in/out 822404280/197 bytes for SCSI command 0x12-- guessing data in; program syz-executor7 not setting count and/or reply_len properly device gre0 entered promiscuous mode PF_BRIDGE: RTM_NEWNEIGH with unknown ifindex PF_BRIDGE: RTM_NEWNEIGH with unknown ifindex SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1 sclass=netlink_route_socket pig=9472 comm=syz-executor3 binder: 9464:9472 ioctl 4c82 0 returned -22 binder: 9464:9472 ioctl 4c80 ffffffffffffffff returned -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1 sclass=netlink_route_socket pig=9472 comm=syz-executor3 binder: 9464:9491 ioctl 4c82 0 returned -22 binder: 9464:9487 ioctl 4c80 ffffffffffffffff returned -22 binder: 9499:9500 ioctl c08c5335 209dcf74 returned -22 binder: 9499:9500 ioctl c08c5335 209dcf74 returned -22 sock: sock_set_timeout: `syz-executor0' (pid 9677) tries to set negative timeout sock: sock_set_timeout: `syz-executor0' (pid 9677) tries to set negative timeout IPVS: Creating netns size=2536 id=19 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 9700 Comm: syz-executor2 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c843f870 ffffffff81d90429 ffff8801c843fb50 0000000000000000 ffff8801a9589f10 ffff8801c843fa40 ffff8801a9589e00 ffff8801c843fa68 ffffffff8165e3c7 00fff10039087f24 ffff8801c843f9c0 00000001c6a0d067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] do_syscall_64+0x197/0x490 arch/x86/entry/common.c:280 [] entry_SYSCALL64_slow_path+0x25/0x25 binder: 9760:9763 ioctl 8927 204dcfd8 returned -22 binder: 9760:9763 ioctl 8927 204dcfd8 returned -22 CPU: 1 PID: 9723 Comm: syz-executor2 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8d976e0 ffffffff81d90429 ffff8801c8d979c0 0000000000000000 ffff8801a9589f10 ffff8801c8d978b0 ffff8801a9589e00 ffff8801c8d978d8 ffffffff8165e3c7 ffffffff812395a0 ffff8801c8d97830 00000001c6a0d067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] vfs_ioctl fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x1aa/0x1140 fs/ioctl.c:679 [] SYSC_ioctl fs/ioctl.c:694 [inline] [] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x23/0xc6 pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads device gre0 entered promiscuous mode qtaguid: iface_stat: create(lo): no inet dev qtaguid: iface_stat: create6(lo): no inet dev device gre0 entered promiscuous mode nla_parse: 13 callbacks suppressed netlink: 9 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 9 bytes leftover after parsing attributes in process `syz-executor1'. FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 10045 Comm: syz-executor0 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c6727870 ffffffff81d90429 ffff8801c6727b50 0000000000000000 ffff8801d7475010 ffff8801c6727a40 ffff8801d7474f00 ffff8801c6727a68 ffffffff8165e3c7 00fff10038ce4f24 ffff8801c67279c0 00000001a997a067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] do_syscall_64+0x197/0x490 arch/x86/entry/common.c:280 [] entry_SYSCALL64_slow_path+0x25/0x25 binder: 10068:10072 ioctl 40086425 203c4000 returned -22 CPU: 0 PID: 10053 Comm: syz-executor0 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ccb676e0 ffffffff81d90429 ffff8801ccb679c0 0000000000000000 ffff8801d7475010 ffff8801ccb678b0 ffff8801d7474f00 ffff8801ccb678d8 ffffffff8165e3c7 ffffffff812395a0 ffff8801ccb67830 00000001a997a067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] vfs_ioctl fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x1aa/0x1140 fs/ioctl.c:679 [] SYSC_ioctl fs/ioctl.c:694 [inline] [] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x23/0xc6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=10185 comm=syz-executor3 binder: 10176:10185 ioctl 4b48 20000000 returned -22 binder: 10198:10200 ioctl 8903 20af0ffc returned -22 binder: 10198:10200 ioctl 89a0 2021f000 returned -22 binder: 10198:10200 ioctl 8903 20af0ffc returned -22 binder: 10198:10200 ioctl 89a0 2021f000 returned -22 program syz-executor5 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=10207 comm=syz-executor3 binder: 10176:10207 ioctl 4b48 20000000 returned -22 program syz-executor5 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=10276 comm=syz-executor1 binder: 10263:10272 ioctl 4b45 20306000 returned -22 binder: 10263:10272 ioctl 40086408 200dfff8 returned -22 binder: 10263:10283 ioctl 4b45 20306000 returned -22 binder: 10263:10283 ioctl 40086408 200dfff8 returned -22 Tx-ring is not supported. IPv6: Can't replace route, no match found IPv6: Can't replace route, no match found sg_write: data in/out 822404280/197 bytes for SCSI command 0x12-- guessing data in; program syz-executor5 not setting count and/or reply_len properly binder: 10422:10424 ioctl 40106439 20ff4000 returned -22 binder: 10422:10424 ioctl 40084503 20cfeff8 returned -22 binder: 10422:10436 ioctl 40106439 20ff4000 returned -22 binder: 10422:10436 ioctl 40084503 20cfeff8 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. device gre0 entered promiscuous mode netlink: 1 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor7'. ALSA: seq fatal error: cannot create timer (-22) ALSA: seq fatal error: cannot create timer (-22) device syz3 entered promiscuous mode tmpfs: No value for mount option '‹¶K"WöËO¢©S£d€Yl®' device gre0 entered promiscuous mode tmpfs: No value for mount option '‹¶K"WöËO¢©S£d€Yl®' binder: 10702:10706 ioctl c0106426 20017000 returned -22 binder: 10702:10706 ioctl 4008642a 2000eff8 returned -22 binder: 10702:10706 ioctl 4b32 6 returned -22 binder: 10702:10715 ioctl c0106426 20017000 returned -22 binder: 10702:10706 ioctl 4008642a 2000eff8 returned -22 binder: 10702:10715 ioctl 4b32 6 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 10780 Comm: syz-executor1 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801acaff8d0 ffffffff81d90429 ffff8801acaffbb0 0000000000000000 ffff8801a9589610 ffff8801acaffaa0 ffff8801a9589500 ffff8801acaffac8 ffffffff8165e3c7 ffff8801acaff938 ffff8801acaffa20 00000001d8a63067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 1 PID: 10786 Comm: syz-executor1 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c887f980 ffffffff81d90429 ffff8801c887fc60 0000000000000000 ffff8801a9589610 ffff8801c887fb50 ffff8801a9589500 ffff8801c887fb78 ffffffff8165e3c7 0000000000000000 ffff8801c887fad0 00000001d8a63067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 10786 Comm: syz-executor1 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c887f8d0 ffffffff81d90429 ffff8801c887fbb0 0000000000000000 ffff8801a9589f10 ffff8801c887faa0 ffff8801a9589e00 ffff8801c887fac8 ffffffff8165e3c7 ffff8801c887f918 ffff8801c887fa20 00000001ac04e067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 0 PID: 10795 Comm: syz-executor1 Tainted: G B 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d89c7980 ffffffff81d90429 ffff8801d89c7c60 0000000000000000 ffff8801a9589f10 ffff8801d89c7b50 ffff8801a9589e00 ffff8801d89c7b78 ffffffff8165e3c7 0000000041b58ab3 ffff8801d89c7ad0 00000001ac04e067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. device gre0 entered promiscuous mode