netlink: 8 bytes leftover after parsing attributes in process `syz-executor6'. ================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c779dbf0 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c779dbf0 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801c779dbf0 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801c779dbf0 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801c779dbf0 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801c779dbf0 Read of size 8 by task syz-executor5/23513 CPU: 1 PID: 23513 Comm: syz-executor5 Not tainted 4.9.61-g904c79c #86 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cdbafd88 ffffffff81d91589 ffff8801da155140 ffff8801c779dba0 ffff8801c779dc58 ffffed0038ef3b7e ffff8801c779dbf0 ffff8801cdbafdb0 ffffffff8153c1bc ffffed0038ef3b7e 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 netlink: 8 bytes leftover after parsing attributes in process `syz-executor6'. [] 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 ffff8801c779dba0, in cache vm_area_struct size: 184 Allocated: PID = 23513 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:2014 [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 = 23526 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:2014 [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: ffff8801c779da80: fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb ffff8801c779db00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c779db80: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801c779dc00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc ffff8801c779dc80: fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== IPVS: Creating netns size=2536 id=53 IPVS: Creating netns size=2536 id=54 netlink: 8 bytes leftover after parsing attributes in process `syz-executor6'. 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: 14 bytes leftover after parsing attributes in process `syz-executor0'. tmpfs: No value for mount option 'ij' tmpfs: No value for mount option 'ij' binder: binder_mmap: 23921 207fd000-20801000 bad vm_flags failed -1 binder: 23921:23923 ioctl 8917 20227fe0 returned -22 binder: binder_mmap: 23921 207fd000-20801000 bad vm_flags failed -1 binder: 23921:23936 ioctl 8917 20227fe0 returned -22 device gre0 entered promiscuous mode binder: 24026:24027 ioctl 541b 200b7ffc returned -22 binder: 24026:24041 ioctl 541b 200b7ffc returned -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=24065 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=24084 comm=syz-executor3 sock: process `syz-executor4' is using obsolete getsockopt SO_BSDCOMPAT binder: 24162:24166 ioctl 8914 2066c000 returned -22 binder: 24162:24166 ioctl 8914 2066c000 returned -22 device gre0 entered promiscuous mode device gre0 entered promiscuous mode 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 sd 0:0:1:0: [sg0] tag#563 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#563 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#563 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[10]: 00 00 00 00 10 27 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[20]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 binder: 24310:24312 ioctl 4b37 0 returned -22 sd 0:0:1:0: [sg0] tag#563 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#563 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#563 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[10]: 00 00 00 00 10 27 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[20]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#563 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13096 sclass=netlink_route_socket pig=24460 comm=syz-executor6 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13096 sclass=netlink_route_socket pig=24460 comm=syz-executor6 IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: Can't replace route, no match found device gre0 entered promiscuous mode skbuff: bad partial csum: csum=98/65532 len=113 IPv6: Can't replace route, no match found device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready device gre0 entered promiscuous mode nla_parse: 10 callbacks suppressed netlink: 16 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor0'. device lo entered promiscuous mode device lo left promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready device lo entered promiscuous mode device lo left promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready device lo left promiscuous mode device gre0 entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 24777 Comm: syz-executor4 Tainted: G B 4.9.61-g904c79c #86 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c68079a0 ffffffff81d91589 ffff8801c6807c80 0000000000000000 ffff8801aa0de290 ffff8801c6807b70 ffff8801aa0de180 ffff8801c6807b98 ffffffff8165fe47 ffff8801cda6e000 ffff8801c6807af0 00000001c734d067 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 [] SYSC_sigaltstack kernel/signal.c:3170 [inline] [] SyS_sigaltstack+0x6c/0x90 kernel/signal.c:3168 [] entry_SYSCALL_64_fastpath+0x23/0xc6 devpts: called with bogus options device gre0 left promiscuous mode device gre0 entered promiscuous mode devpts: called with bogus options netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. IPv6: NLM_F_REPLACE set, but no existing node found! netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. IPv6: NLM_F_REPLACE set, but no existing node found! device gre0 entered promiscuous mode device gre0 left promiscuous mode device gre0 entered promiscuous mode device gre0 left promiscuous mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. device gre0 entered promiscuous mode loop_reread_partitions: partition scan of loop0 () failed (rc=-13) netlink: 21 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 21 bytes leftover after parsing attributes in process `syz-executor5'. tmpfs: No value for mount option '‹' tmpfs: No value for mount option '‹' device gre0 entered promiscuous mode 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 IPVS: Creating netns size=2536 id=55 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 PF_BRIDGE: RTM_SETLINK with unknown ifindex PF_BRIDGE: RTM_SETLINK with unknown ifindex 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=25626 comm=syz-executor6 program syz-executor3 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 tty_warn_deprecated_flags: 'syz-executor1' is using deprecated serial flags (with no effect): 00008000 program syz-executor3 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 tty_warn_deprecated_flags: 'syz-executor1' is using deprecated serial flags (with no effect): 00008000 binder: 25701:25702 ioctl 5402 20f52000 returned -22 binder: 25701:25702 ioctl 4b36 0 returned -22