================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801cc1a0af8 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801cc1a0af8 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801cc1a0af8 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801cc1a0af8 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801cc1a0af8 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801cc1a0af8 Read of size 8 by task syz-executor0/11822 CPU: 1 PID: 11822 Comm: syz-executor0 Not tainted 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c714fd88 ffffffff81d91589 ffff8801da155140 ffff8801cc1a0aa8 ffff8801cc1a0b60 ffffed003983415f ffff8801cc1a0af8 ffff8801c714fdb0 ffffffff8153c1bc ffffed003983415f 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 ffff8801cc1a0aa8, in cache vm_area_struct size: 184 Allocated: PID = 11822 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 = 11832 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: ffff8801cc1a0980: fc fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb ffff8801cc1a0a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc >ffff8801cc1a0a80: fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801cc1a0b00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801cc1a0b80: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801ca2fede0 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801ca2fede0 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801ca2fede0 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801ca2fede0 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801ca2fede0 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801ca2fede0 Read of size 8 by task syz-executor0/11852 CPU: 0 PID: 11852 Comm: syz-executor0 Tainted: G B 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a6f57d88 ffffffff81d91589 ffff8801da155140 ffff8801ca2fed90 ffff8801ca2fee48 ffffed003945fdbc ffff8801ca2fede0 ffff8801a6f57db0 ffffffff8153c1bc ffffed003945fdbc 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 ffff8801ca2fed90, in cache vm_area_struct size: 184 Allocated: PID = 11852 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 = 11876 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: ffff8801ca2fec80: fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801ca2fed00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc >ffff8801ca2fed80: fc fc fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801ca2fee00: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc ffff8801ca2fee80: fc fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== syz-executor0: vmalloc: allocation failure: 17179869168 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11918 Comm: syz-executor0 Tainted: G B 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d21a7880 ffffffff81d91589 1ffff1003a434f13 ffff8801aa0be000 ffffffff83ab7b80 0000000000000001 0000000000400000 ffff8801d21a7990 ffffffff81450982 024000c2e403438c 0000000041b58ab3 ffffffff8419047d Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] warn_alloc+0x212/0x240 mm/page_alloc.c:3054 [] __vmalloc_node_range+0x3f5/0x5f0 mm/vmalloc.c:1722 [] __vmalloc_node mm/vmalloc.c:1744 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1758 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1773 [] xt_alloc_entry_offsets+0x41/0x60 net/netfilter/x_tables.c:722 [] translate_table+0x21a/0x1e30 net/ipv4/netfilter/ip_tables.c:700 [] do_replace net/ipv4/netfilter/ip_tables.c:1151 [inline] [] do_ipt_set_ctl+0x2be/0x470 net/ipv4/netfilter/ip_tables.c:1687 [] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 [] ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1243 [] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2705 [] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2707 [] SYSC_setsockopt net/socket.c:1771 [inline] [] SyS_setsockopt+0x160/0x250 net/socket.c:1750 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Mem-Info: active_anon:90306 inactive_anon:39 isolated_anon:0 active_file:3613 inactive_file:6657 isolated_file:0 unevictable:0 dirty:111 writeback:0 unstable:0 slab_reclaimable:5481 slab_unreclaimable:24284 mapped:22811 shmem:78 pagetables:773 bounce:0 free:1478071 free_pcp:390 free_cma:0 Node 0 active_anon:340592kB inactive_anon:156kB active_file:14452kB inactive_file:26628kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:91244kB dirty:444kB writeback:0kB shmem:312kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2910 6411 6411 DMA32 free:2981148kB min:30600kB low:38248kB high:45896kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2981844kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:696kB local_pcp:48kB free_cma:0kB lowmem_reserve[]: 0 0 3501 3501 Normal free:2914496kB min:36816kB low:46020kB high:55224kB active_anon:359092kB inactive_anon:156kB active_file:14452kB inactive_file:26628kB unevictable:0kB writepending:444kB present:4718592kB managed:3585220kB mlocked:0kB slab_reclaimable:21924kB slab_unreclaimable:98020kB kernel_stack:5952kB pagetables:3092kB bounce:0kB free_pcp:932kB local_pcp:616kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB DMA32: 1*4kB (M) 1*8kB (M) 3*16kB (M) 3*32kB (M) 4*64kB (M) 3*128kB (M) 2*256kB (M) 2*512kB [ 77.503404] syz-executor0: vmalloc: allocation failure: 17179869168 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 1 PID: 11905 Comm: syz-executor0 Tainted: G B 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c7a07880 ffffffff81d91589 1ffff10038f40f13 ffff8801cd069800 ffffffff83ab7b80 0000000000000001 0000000000400000 ffff8801c7a07990 ffffffff81450982 024000c2a56ef465 0000000041b58ab3 ffffffff8419047dCall Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] warn_alloc+0x212/0x240 mm/page_alloc.c:3054 [] __vmalloc_node_range+0x3f5/0x5f0 mm/vmalloc.c:1722 [] __vmalloc_node mm/vmalloc.c:1744 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1758 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1773 [] xt_alloc_entry_offsets+0x41/0x60 net/netfilter/x_tables.c:722 [] translate_table+0x21a/0x1e30 net/ipv4/netfilter/ip_tables.c:700 [] do_replace net/ipv4/netfilter/ip_tables.c:1151 [inline] [] do_ipt_set_ctl+0x2be/0x470 net/ipv4/netfilter/ip_tables.c:1687 [] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 [] ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1243 [] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2705 [] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2707 [] SYSC_setsockopt net/socket.c:1771 [inline] [] SyS_setsockopt+0x160/0x250 net/socket.c:1750 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Mem-Info: active_anon:84094 inactive_anon:39 isolated_anon:0 active_file:3613 inactive_file:6657 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5481 slab_unreclaimable:24762 mapped:22786 shmem:78 pagetables:736 bounce:0 free:1483828 free_pcp:498 free_cma:0 Node 0 active_anon:336376kB inactive_anon:156kB active_file:14452kB inactive_file:26628kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:91144kB dirty:0kB writeback:0kB shmem:312kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 0 2910 6411 6411DMA32 free:2981148kB min:30600kB low:38248kB high:45896kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2981844kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:696kB local_pcp:648kB free_cma:0kB 0 0 3501 3501Normal free:2938256kB min:36816kB low:46020kB high:55224kB active_anon:336376kB inactive_anon:156kB active_file:14452kB inactive_file:26628kB unevictable:0kB writepending:148kB present:4718592kB managed:3585220kB mlocked:0kB slab_reclaimable:21924kB slab_unreclaimable:99048kB kernel_stack:5728kB pagetables:2944kB bounce:0kB free_pcp:1296kB local_pcp:568kB free_cma:0kB 0 0 0 0DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 10347 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 320236 pages reserved (M) 1*1024kB (M) 2*2048kB (M) 726*4096kB (M) = 2981148kB Normal: 484*4kB (UM) 1279*8kB (UME) 884*16kB (UME) 886*32kB (UME) 1611*64kB (UME) 383*128kB (UME) 42*256kB (UME) 7*512kB (UME) 3*1024kB (UME) 3*2048kB (ME) 662*4096kB (UM) = 2941896kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 10363 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 320236 pages reserved IPVS: Creating netns size=2536 id=27 IPVS: Creating netns size=2536 id=28 nla_parse: 8 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. device gre0 entered promiscuous mode device gre0 entered promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor4'. FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12177 Comm: syz-executor7 Tainted: G B 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a81bf4e0 ffffffff81d91589 ffff8801a81bf7c0 0000000000000000 ffff8801cf3e8e90 ffff8801a81bf6b0 ffff8801cf3e8d80 ffff8801a81bf6d8 ffffffff8165fe47 ffff880102408040 ffff8801a81bf630 00000001d6005067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12226 comm=syz-executor4 [] handle_userfault+0xa37/0x1300 fs/userfaultfd.c:323 device gre0 entered promiscuous mode [] 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 [] generic_perform_write+0x1dc/0x500 mm/filemap.c:2731 [] __generic_file_write_iter+0x348/0x570 mm/filemap.c:2866 [] generic_file_write_iter+0x2d5/0x600 mm/filemap.c:2894 [] new_sync_write fs/read_write.c:499 [inline] [] __vfs_write+0x4bf/0x680 fs/read_write.c:512 [] vfs_write+0x170/0x4e0 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x23/0xc6 device gre0 entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12177 Comm: syz-executor7 Tainted: G B 4.9.61-ga93e312 #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 sock: sock_set_timeout: `syz-executor3' (pid 12255) tries to set negative timeout ffff8801a81bf4e0 ffffffff81d91589 ffff8801a81bf7c0 0000000000000000 ffff8801cf3e9010 ffff8801a81bf6b0 ffff8801cf3e8f00 ffff8801a81bf6d8 ffffffff8165fe47 ffffed0035037eb2 ffff8801a81bf630 00000001a731b067 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 sock: sock_set_timeout: `syz-executor3' (pid 12263) tries to set negative timeout [] 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 [] generic_perform_write+0x1dc/0x500 mm/filemap.c:2731 [] __generic_file_write_iter+0x348/0x570 mm/filemap.c:2866 [] generic_file_write_iter+0x2d5/0x600 mm/filemap.c:2894 [] new_sync_write fs/read_write.c:499 [inline] [] __vfs_write+0x4bf/0x680 fs/read_write.c:512 [] vfs_write+0x170/0x4e0 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ICMPv6: NA: someone advertises our address fe80:0000:0000:0000:0000:0000:0000:01aa on syz1! netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor6'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1 sclass=netlink_route_socket pig=12429 comm=syz-executor3 netlink: 60 bytes leftover after parsing attributes in process `syz-executor6'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1 sclass=netlink_route_socket pig=12429 comm=syz-executor3 device gre0 entered promiscuous mode netlink: 6 bytes leftover after parsing attributes in process `syz-executor4'. keychord: using input dev AT Translated Set 2 keyboard for fevent IPVS: Creating netns size=2536 id=29 keychord: invalid keycode count 0 keychord: Insufficient bytes present for keycount 18 keychord: using input dev AT Translated Set 2 keyboard for fevent keychord: invalid keycode count 0 keychord: Insufficient bytes present for keycount 18 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 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 IPVS: Creating netns size=2536 id=30 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=257 sclass=netlink_tcpdiag_socket pig=12687 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=257 sclass=netlink_tcpdiag_socket pig=12698 comm=syz-executor1 device lo 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 binder: 12856:12861 ioctl 8903 20af0ffc returned -22 binder: 12856:12867 ioctl 540a 0 returned -22 binder: 12856:12867 ioctl 8903 20af0ffc returned -22 A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. device gre0 entered promiscuous mode 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 tmpfs: No value for mount option 'ij' tmpfs: No value for mount option 'ij' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=13012 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=13039 comm=syz-executor5 binder: 13042:13048 ioctl 540f 20ff4000 returned -22 binder: 13042:13048 ioctl c008640a 20a08000 returned -22 binder: 13042:13057 ioctl 540f 20ff4000 returned -22 device gre0 entered promiscuous mode binder: 13042:13048 ioctl c008640a 20a08000 returned -22 sg_write: data in/out 476/6 bytes for SCSI command 0x0-- guessing data in; program syz-executor6 not setting count and/or reply_len properly binder: 13102:13103 ioctl c0086420 2004e000 returned -22 binder: 13102:13103 ioctl 4c82 0 returned -22 binder: 13102:13103 ioctl 40086425 203c4000 returned -22 binder: 13102:13103 ioctl c04c5349 20225000 returned -22 binder: 13102:13103 ioctl c0086420 2004e000 returned -22 binder: 13102:13120 ioctl 4c82 0 returned -22 binder: 13102:13120 ioctl 40086425 203c4000 returned -22 binder: 13102:13120 ioctl c04c5349 20225000 returned -22 øÿÿÿ: renamed from lo nla_parse: 14 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. IPv6: Can't replace route, no match found netlink: 6 bytes leftover after parsing attributes in process `syz-executor1'. IPv6: Can't replace route, no match found device gre0 entered promiscuous mode netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. binder: 13350:13351 ioctl 4b45 20306000 returned -22 binder: 13350:13351 ioctl 4c82 0 returned -22 binder: 13350:13351 ioctl 4c80 ffffffffffffffff returned -22 binder: 13350:13369 ioctl 4b45 20306000 returned -22 binder: 13350:13369 ioctl 4c82 0 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. binder: 13350:13351 ioctl 4c80 ffffffffffffffff returned -22 netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. 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 device gre0 entered promiscuous mode device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=36493 sclass=netlink_tcpdiag_socket pig=13550 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=36493 sclass=netlink_tcpdiag_socket pig=13550 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=13683 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=13683 comm=syz-executor1 binder: 13805:13808 ioctl c08c5335 209dcf74 returned -22 binder: 13805:13808 ioctl 80404532 200f2f20 returned -22 binder: 13805:13808 ioctl c08c5335 209dcf74 returned -22 binder: 13805:13823 ioctl 80404532 200f2f20 returned -22 : renamed from tunl0 device  entered promiscuous mode