netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. ================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801b8d58148 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801b8d58148 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801b8d58148 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801b8d58148 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801b8d58148 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801b8d58148 Read of size 8 by task syz-executor5/21995 CPU: 0 PID: 21995 Comm: syz-executor5 Not tainted 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d67cfd88 ffffffff81d90429 ffff8801da155140 ffff8801b8d580f8 ffff8801b8d581b0 ffffed00371ab029 ffff8801b8d58148 ffff8801d67cfdb0 ffffffff8153a3ac ffffed00371ab029 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. [] __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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 Object at ffff8801b8d580f8, in cache vm_area_struct size: 184 Allocated: PID = 21995 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 binder: 22047:22052 ioctl 400454d4 200f3ffc returned -22 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 = 22004 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: ffff8801b8d58000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801b8d58080: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fb >ffff8801b8d58100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801b8d58180: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fb fb ffff8801b8d58200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== binder: 22047:22057 ioctl 400454d4 200f3ffc returned -22 binder_alloc: binder_alloc_mmap_handler: 22047 20000000-20400000 already mapped failed -16 netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. program syz-executor4 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 program syz-executor4 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 program syz-executor4 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 program syz-executor4 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 program syz-executor7 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 program syz-executor4 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 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 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO 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 sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor6 is using a deprecated SCSI ioctl, please convert it to SG_IO 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 sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 program syz-executor7 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 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 program syz-executor6 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 sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. program syz-executor4 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 program syz-executor4 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 A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. program syz-executor4 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 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=202 sclass=netlink_route_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=22545 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=22568 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=22568 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=22568 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=202 sclass=netlink_route_socket pig=22545 comm=syz-executor1