==================================================================
BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801ceec2718
BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801ceec2718
BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801ceec2718
BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801ceec2718
BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801ceec2718
BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801ceec2718
Read of size 8 by task syz-executor4/4941
CPU: 1 PID: 4941 Comm: syz-executor4 Not tainted 4.9.64-gfbb7468 #94
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
ffff8801c6a5fd88 ffffffff81d90429 ffff8801da155140 ffff8801ceec26c8
ffff8801ceec2780 ffffed0039dd84e3 ffff8801ceec2718 ffff8801c6a5fdb0
ffffffff8153a3ac ffffed0039dd84e3 ffff8801da155140 0000000000000000
Call Trace:
[<ffffffff81d90429>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81d90429>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
[<ffffffff8153a3ac>] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160
[<ffffffff8153a66c>] print_address_description mm/kasan/report.c:198 [inline]
[<ffffffff8153a66c>] kasan_report_error mm/kasan/report.c:287 [inline]
[<ffffffff8153a66c>] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309
[<ffffffff8153aa09>] kasan_report mm/kasan/report.c:330 [inline]
[<ffffffff8153aa09>] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330
[<ffffffff810ddb10>] __read_once_size include/linux/compiler.h:243 [inline]
[<ffffffff810ddb10>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
[<ffffffff810ddb10>] static_key_count include/linux/jump_label.h:174 [inline]
[<ffffffff810ddb10>] static_key_false include/linux/jump_label.h:184 [inline]
[<ffffffff810ddb10>] perf_sw_event include/linux/perf_event.h:1039 [inline]
[<ffffffff810ddb10>] __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438
[<ffffffff810ddc27>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460
[<ffffffff838aa958>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012
Object at ffff8801ceec26c8, in cache vm_area_struct size: 184
Allocated:
PID = 4941
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 = 4953
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:
ffff8801ceec2600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801ceec2680: fb fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb
>ffff8801ceec2700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8801ceec2780: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
ffff8801ceec2800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc
==================================================================
tmpfs: No value for mount option '��K"W��O��S� d�Yl�'
IPVS: Creating netns size=2536 id=12
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�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�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�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�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H�H
tmpfs: No value for mount option '��K"W��O��S� d�Yl�'
netlink: 6 bytes leftover after parsing attributes in process `syz-executor3'.
netlink: 6 bytes leftover after parsing attributes in process `syz-executor3'.
9pnet_virtio: no channels available for device H�
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
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 1 PID: 5174 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
ffff8801c7637940 ffffffff81d90429 ffff8801c7637c20 0000000000000000
ffff8801ac2efd90 ffff8801c7637b10 ffff8801ac2efc80 ffff8801c7637b38
ffffffff8165e3c7 ffffffff83899ce5 ffff8801c7637a90 00000001d9331067
Call Trace:
[<ffffffff81d90429>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81d90429>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
[<ffffffff8165e3c7>] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323
[<ffffffff814cd6c1>] do_anonymous_page mm/memory.c:2747 [inline]
[<ffffffff814cd6c1>] handle_pte_fault mm/memory.c:3488 [inline]
[<ffffffff814cd6c1>] __handle_mm_fault mm/memory.c:3577 [inline]
[<ffffffff814cd6c1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
[<ffffffff810dd447>] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396
[<ffffffff810ddc27>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460
[<ffffffff838aa958>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012
[<ffffffff838a9785>] entry_SYSCALL_64_fastpath+0x23/0xc6
device gre0 entered promiscuous mode
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 0 PID: 5186 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
ffff8801cb7df940 ffffffff81d90429 ffff8801cb7dfc20 0000000000000000
ffff8801ac2eff10 ffff8801cb7dfb10 ffff8801ac2efe00 ffff8801cb7dfb38
ffffffff8165e3c7 ffff8801d6e89800 0000000000000000 0000000000000000
Call Trace:
[<ffffffff81d90429>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81d90429>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
[<ffffffff8165e3c7>] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323
[<ffffffff814cd6c1>] do_anonymous_page mm/memory.c:2747 [inline]
[<ffffffff814cd6c1>] handle_pte_fault mm/memory.c:3488 [inline]
[<ffffffff814cd6c1>] __handle_mm_fault mm/memory.c:3577 [inline]
[<ffffffff814cd6c1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
[<ffffffff810dd447>] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1396
[<ffffffff810ddc27>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460
[<ffffffff838aa958>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012
[<ffffffff838a9785>] entry_SYSCALL_64_fastpath+0x23/0xc6
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
binder: 5474:5481 ioctl 8927 204dcfd8 returned -22
binder: 5474:5481 ioctl 8927 204dcfd8 returned -22
netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'.
IPVS: Creating netns size=2536 id=13
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=5651 comm=syz-executor3
binder: 5673:5675 ioctl 4b4e 3e returned -22
binder: 5673:5675 ioctl 4b4e 3e returned -22
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
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
IPVS: Creating netns size=2536 id=14
binder: 5809:5814 ioctl 80084502 2099ffaa returned -22
binder: 5809:5814 ioctl 80084502 2099ffaa returned -22
IPVS: Creating netns size=2536 id=15
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=7 sclass=netlink_route_socket pig=5889 comm=syz-executor0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5889 comm=syz-executor0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5904 comm=syz-executor0
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
netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'.
capability: warning: `syz-executor6' uses deprecated v2 capabilities in a way that may be insecure
netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'.
9pnet_virtio: no channels available for device ./file0
netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'.
9pnet_virtio: no channels available for device ./file0
IPVS: Creating netns size=2536 id=16
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6122 comm=syz-executor1
binder: 6147:6148 ioctl c018aa3f 20fabfe8 returned -22
binder: 6147:6148 ioctl c018aa3f 20fabfe8 returned -22
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
tmpfs: No value for mount option '�'
tmpfs: No value for mount option '�'
keychord: unsupported version 48
netlink: 2 bytes leftover after parsing attributes in process `syz-executor1'.
keychord: unsupported version 48
tmpfs: No value for mount option '�'
netlink: 2 bytes leftover after parsing attributes in process `syz-executor1'.
tmpfs: No value for mount option '�'
binder: 6246:6247 ioctl 4b6a 204fd000 returned -22
binder: 6246:6247 ioctl 5411 20e27000 returned -22
binder: 6246:6247 ioctl 4c01 0 returned -22
netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'.
IPv6: NLM_F_CREATE should be specified when creating new route
binder: 6246:6261 ioctl 4b6a 204fd000 returned -22
device lo entered promiscuous mode
device lo left promiscuous mode
binder: 6246:6247 ioctl 5411 20e27000 returned -22
binder: 6246:6261 ioctl 4c01 0 returned -22
netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'.
device lo entered promiscuous mode
device lo left promiscuous mode
device gre0 entered promiscuous mode
netlink: 9 bytes leftover after parsing attributes in process `syz-executor3'.
A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check.
A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6405 comm=syz-executor3
binder: 6419:6421 ioctl 80084503 20cb3000 returned -22
9pnet_virtio: no channels available for device ./file0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6405 comm=syz-executor3
9pnet_virtio: no channels available for device ./file0
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6435 comm=syz-executor2
binder: 6419:6421 ioctl 80084503 20cb3000 returned -22
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6435 comm=syz-executor2
binder: 6465:6471 ioctl 541b 20000ffc returned -22
binder: 6461:6463 ioctl 40086425 203c4000 returned -22
binder: 6461:6463 ioctl 40086425 203c4000 returned -22
IPVS: Creating netns size=2536 id=17
device gre0 entered promiscuous mode
tmpfs: No value for mount option 'ij'
tmpfs: No value for mount option 'ij'
device lo entered promiscuous mode
device lo left promiscuous mode
sg_write: data in/out 9969/38 bytes for SCSI command 0x8-- guessing data in;
program syz-executor7 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=65535 sclass=netlink_audit_socket pig=6701 comm=syz-executor0
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=30 sclass=netlink_audit_socket pig=6717 comm=syz-executor0
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=65535 sclass=netlink_audit_socket pig=6717 comm=syz-executor0
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=30 sclass=netlink_audit_socket pig=6717 comm=syz-executor0
device lo entered promiscuous mode
device lo left promiscuous mode
IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE
IPv6: NLM_F_CREATE should be set when creating new route
IPv6: NLM_F_CREATE should be set when creating new route
device lo entered promiscuous mode
device lo left promiscuous mode
device tunl0 entered promiscuous mode