================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d9249ce8 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d9249ce8 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801d9249ce8 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801d9249ce8 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801d9249ce8 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801d9249ce8 Read of size 8 by task syz-executor2/5245 CPU: 1 PID: 5245 Comm: syz-executor2 Not tainted 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d0ec7d88 ffffffff81d90429 ffff8801da155140 ffff8801d9249c98 ffff8801d9249d50 ffffed003b24939d ffff8801d9249ce8 ffff8801d0ec7db0 ffffffff8153a3ac ffffed003b24939d 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 PF_BRIDGE: RTM_SETLINK with unknown ifindex [] 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 PF_BRIDGE: RTM_SETLINK with unknown ifindex [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 binder: 5274:5306 ioctl c0206416 20d30fe0 returned -22 Object at ffff8801d9249c98, in cache vm_area_struct size: 184 Allocated: PID = 5245 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. binder: 5274:5321 ioctl c0206416 20d30fe0 returned -22 Freed: PID = 5263 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: ffff8801d9249b80: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb ffff8801d9249c00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc >ffff8801d9249c80: fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801d9249d00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc ffff8801d9249d80: fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== IPVS: Creating netns size=2536 id=11 IPVS: Creating netns size=2536 id=12 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 IPv6: Can't replace route, no match found IPv6: Can't replace route, no match found 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: 2 bytes leftover after parsing attributes in process `syz-executor6'. binder: 5571:5580 ioctl 40086425 203c4000 returned -22 netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. binder: 5619:5620 ioctl 8916 20001000 returned -22 binder: 5619:5626 ioctl 8916 20001000 returned -22 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 5608 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 ffff8801d60c7970 ffffffff81d90429 ffff8801d60c7c50 0000000000000000 ffff8801ad19d010 ffff8801d60c7b40 ffff8801ad19cf00 ffff8801d60c7b68 ffffffff8165e3c7 ffff8801d60c79d8 ffff8801d60c7ac0 00000001d5f6c067 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: 5634 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 ffff8801da38f930 ffffffff81d90429 ffff8801da38fc10 0000000000000000 ffff8801ad19d010 ffff8801da38fb00 ffff8801ad19cf00 ffff8801da38fb28 ffffffff8165e3c7 ffff8801da38fac8 ffff8801da38fa80 00000001d5f6c067 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 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5774 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5763 comm=syz-executor0 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. 9pnet_virtio: no channels available for device HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. 9pnet_virtio: no channels available for device HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH binder: 5888:5889 ioctl 80045200 20000ffc returned -22 binder: 5888:5889 ioctl 80045200 20000ffc returned -22 binder: 5907:5912 ioctl 40082404 20000ff8 returned -22 binder: 5907:5912 ioctl 8914 20c01000 returned -22 binder: 5907:5931 ioctl 40082404 20000ff8 returned -22 binder: 5907:5912 ioctl 8914 20c01000 returned -22 device lo entered promiscuous mode device lo left promiscuous mode netlink: 6 bytes leftover after parsing attributes in process `syz-executor7'. 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13109 sclass=netlink_route_socket pig=5988 comm=syz-executor0 device lo entered promiscuous mode device lo left promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13109 sclass=netlink_route_socket pig=5988 comm=syz-executor0 device gre0 entered promiscuous mode device gre0 entered promiscuous mode IPVS: Creating netns size=2536 id=13 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 'ij' tmpfs: No value for mount option 'ij' nla_parse: 10 callbacks suppressed netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. 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-executor3'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor3'. 9pnet_virtio: no channels available for device HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. 9pnet_virtio: no channels available for device HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH 9pnet_virtio: no channels available for device H device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=16 sclass=netlink_tcpdiag_socket pig=6485 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=16 sclass=netlink_tcpdiag_socket pig=6494 comm=syz-executor0 9pnet_virtio: no channels available for device H device gre0 entered promiscuous mode device gre0 entered promiscuous mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. binder: 6708:6712 ioctl 5402 20052000 returned -22 binder: 6708:6712 ioctl 4b36 0 returned -22 binder: 6708:6712 ioctl 5402 20052000 returned -22 binder: 6708:6712 ioctl 4b36 0 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. IPVS: Creating netns size=2536 id=14 device gre0 entered 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 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5 sclass=netlink_route_socket pig=7079 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=4 sclass=netlink_route_socket pig=7079 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=7079 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5 sclass=netlink_route_socket pig=7122 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=4 sclass=netlink_route_socket pig=7079 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=7079 comm=syz-executor7 device gre0 entered promiscuous mode binder: 7204:7207 ioctl 4b44 20ad2000 returned -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=7234 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=202 sclass=netlink_route_socket pig=7234 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=7258 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=202 sclass=netlink_route_socket pig=7234 comm=syz-executor2 IPVS: Creating netns size=2536 id=15 IPVS: Creating netns size=2536 id=16 device gre0 entered promiscuous mode device gre0 entered promiscuous mode