[ 109.221803][ T27] audit: type=1400 audit(1579493793.741:37): avc: denied { watch } for pid=10348 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 109.257112][ T27] audit: type=1400 audit(1579493793.771:38): avc: denied { watch } for pid=10348 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 109.569276][ T27] audit: type=1800 audit(1579493794.091:39): pid=10256 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 109.591006][ T27] audit: type=1800 audit(1579493794.091:40): pid=10256 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 111.819856][ T27] audit: type=1400 audit(1579493796.341:41): avc: denied { map } for pid=10434 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 118.446418][ T27] audit: type=1400 audit(1579493802.971:42): avc: denied { map } for pid=10446 comm="syz-executor241" path="/root/syz-executor241023126" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 118.473836][ T27] audit: type=1400 audit(1579493802.971:43): avc: denied { create } for pid=10447 comm="syz-executor241" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 118.500641][ T27] audit: type=1400 audit(1579493802.971:44): avc: denied { write } for pid=10447 comm="syz-executor241" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 119.534528][ C0] ================================================================== [ 119.542716][ C0] BUG: KASAN: slab-out-of-bounds in bitmap_port_gc+0x112/0x4f0 [ 119.550246][ C0] Read of size 8 at addr ffff8880a1328e00 by task syz-executor241/10822 [ 119.558548][ C0] [ 119.560954][ C0] CPU: 0 PID: 10822 Comm: syz-executor241 Not tainted 5.5.0-rc6-syzkaller #0 [ 119.569698][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.579742][ C0] Call Trace: [ 119.583050][ C0] [ 119.585928][ C0] dump_stack+0x197/0x210 [ 119.590342][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 119.595191][ C0] print_address_description.constprop.0.cold+0xd4/0x30b [ 119.602214][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 119.607064][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 119.611911][ C0] __kasan_report.cold+0x1b/0x41 [ 119.617548][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 119.622918][ C0] kasan_report+0x12/0x20 [ 119.627304][ C0] check_memory_region+0x134/0x1a0 [ 119.632414][ C0] __kasan_check_read+0x11/0x20 [ 119.637246][ C0] bitmap_port_gc+0x112/0x4f0 [ 119.641911][ C0] call_timer_fn+0x1ac/0x780 [ 119.646480][ C0] ? bitmap_port_test+0x170/0x170 [ 119.651498][ C0] ? msleep_interruptible+0x150/0x150 [ 119.656857][ C0] ? run_timer_softirq+0x6b1/0x1790 [ 119.662124][ C0] ? trace_hardirqs_on+0x67/0x240 [ 119.667128][ C0] ? bitmap_port_test+0x170/0x170 [ 119.672132][ C0] ? bitmap_port_test+0x170/0x170 [ 119.677143][ C0] run_timer_softirq+0x6c3/0x1790 [ 119.682167][ C0] ? add_timer+0x930/0x930 [ 119.686565][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 119.692721][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 119.698250][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 119.704223][ C0] ? trace_hardirqs_on+0x67/0x240 [ 119.709235][ C0] __do_softirq+0x262/0x98c [ 119.713728][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 119.718565][ C0] irq_exit+0x19b/0x1e0 [ 119.722704][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 119.728234][ C0] apic_timer_interrupt+0xf/0x20 [ 119.733150][ C0] [ 119.736115][ C0] RIP: 0010:__sanitizer_cov_trace_cmp4+0x1/0x20 [ 119.742381][ C0] Code: 5d c3 0f 1f 80 00 00 00 00 55 0f b7 d6 0f b7 f7 bf 02 00 00 00 48 89 e5 48 8b 4d 08 e8 58 ff ff ff 5d c3 66 0f 1f 44 00 00 55 <89> f2 89 fe bf 04 00 00 00 48 89 e5 48 8b 4d 08 e8 3a ff ff ff 5d [ 119.762015][ C0] RSP: 0000:ffffc90003737b80 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 119.770454][ C0] RAX: ffff8880a330e300 RBX: 0000000020000000 RCX: ffffffff81a1b703 [ 119.778406][ C0] RDX: 0000000000000000 RSI: 0000000000000173 RDI: 0000000000000000 [ 119.786358][ C0] RBP: ffffc90003737bd8 R08: ffff8880a330e300 R09: ffffed1015d0703d [ 119.794312][ C0] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffea0001ef0000 [ 119.802289][ C0] R13: 0000000000000173 R14: 0000000000000000 R15: 0000000000000000 [ 119.810267][ C0] ? clear_subpage+0xd3/0x110 [ 119.814930][ C0] ? clear_huge_page+0xc4/0x3e0 [ 119.819762][ C0] do_huge_pmd_anonymous_page+0x6a6/0x1a50 [ 119.825558][ C0] ? mark_lock+0xc2/0x1220 [ 119.829954][ C0] ? do_wp_page+0x54b/0x1540 [ 119.834525][ C0] ? prep_transhuge_page+0xa0/0xa0 [ 119.839635][ C0] __handle_mm_fault+0x3145/0x3cc0 [ 119.844736][ C0] ? apply_to_existing_page_range+0x50/0x50 [ 119.850607][ C0] ? handle_mm_fault+0x292/0xa50 [ 119.855528][ C0] ? handle_mm_fault+0x7a0/0xa50 [ 119.860444][ C0] ? __kasan_check_read+0x11/0x20 [ 119.865472][ C0] handle_mm_fault+0x3b2/0xa50 [ 119.870229][ C0] __do_page_fault+0x536/0xd80 [ 119.874991][ C0] do_page_fault+0x38/0x590 [ 119.879475][ C0] page_fault+0x39/0x40 [ 119.883607][ C0] RIP: 0033:0x400713 [ 119.887658][ C0] Code: 03 00 00 00 be 10 00 00 00 bf 29 00 00 00 e8 84 0c 04 00 48 83 f8 ff 74 07 48 89 05 87 a9 2c 00 48 b8 62 69 74 6d 61 70 3a 70 <48> c7 04 25 40 01 00 20 00 00 00 00 c7 04 25 48 01 00 20 00 00 00 [ 119.907240][ C0] RSP: 002b:00007fff0e99e500 EFLAGS: 00010213 [ 119.913293][ C0] RAX: 703a70616d746962 RBX: 0000000000000000 RCX: 0000000000441399 [ 119.921242][ C0] RDX: 000000000000000c RSI: 0000000000000003 RDI: 0000000000000010 [ 119.929206][ C0] RBP: 000000000001d2c6 R08: 0000000000000004 R09: 00000000004002c8 [ 119.937157][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004021c0 [ 119.945114][ C0] R13: 0000000000402250 R14: 0000000000000000 R15: 0000000000000000 [ 119.953083][ C0] [ 119.955411][ C0] Allocated by task 10447: [ 119.959810][ C0] save_stack+0x23/0x90 [ 119.963956][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 119.969572][ C0] kasan_kmalloc+0x9/0x10 [ 119.973883][ C0] __kmalloc+0x163/0x770 [ 119.978124][ C0] ip_set_alloc+0x38/0x5e [ 119.982443][ C0] bitmap_port_create+0x3dc/0x7c0 [ 119.987454][ C0] ip_set_create+0x6f1/0x1500 [ 119.992118][ C0] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 119.997036][ C0] netlink_rcv_skb+0x177/0x450 [ 120.001786][ C0] nfnetlink_rcv+0x1ba/0x460 [ 120.006530][ C0] netlink_unicast+0x58c/0x7d0 [ 120.011274][ C0] netlink_sendmsg+0x91c/0xea0 [ 120.016033][ C0] sock_sendmsg+0xd7/0x130 [ 120.020519][ C0] ____sys_sendmsg+0x753/0x880 [ 120.025266][ C0] ___sys_sendmsg+0x100/0x170 [ 120.029921][ C0] __sys_sendmsg+0x105/0x1d0 [ 120.034487][ C0] __x64_sys_sendmsg+0x78/0xb0 [ 120.039248][ C0] do_syscall_64+0xfa/0x790 [ 120.043731][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 120.049602][ C0] [ 120.051912][ C0] Freed by task 10220: [ 120.055961][ C0] save_stack+0x23/0x90 [ 120.060109][ C0] __kasan_slab_free+0x102/0x150 [ 120.065035][ C0] kasan_slab_free+0xe/0x10 [ 120.069521][ C0] kfree+0x10a/0x2c0 [ 120.073464][ C0] tomoyo_path_perm+0x24e/0x430 [ 120.078313][ C0] tomoyo_inode_getattr+0x1d/0x30 [ 120.083401][ C0] security_inode_getattr+0xf2/0x150 [ 120.088669][ C0] vfs_getattr+0x25/0x70 [ 120.092887][ C0] vfs_statx+0x157/0x200 [ 120.097113][ C0] __do_sys_newstat+0xa4/0x130 [ 120.101856][ C0] __x64_sys_newstat+0x54/0x80 [ 120.106658][ C0] do_syscall_64+0xfa/0x790 [ 120.111157][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 120.117109][ C0] [ 120.119418][ C0] The buggy address belongs to the object at ffff8880a1328e00 [ 120.119418][ C0] which belongs to the cache kmalloc-32 of size 32 [ 120.133281][ C0] The buggy address is located 0 bytes inside of [ 120.133281][ C0] 32-byte region [ffff8880a1328e00, ffff8880a1328e20) [ 120.146315][ C0] The buggy address belongs to the page: [ 120.151931][ C0] page:ffffea000284ca00 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a1328fc1 [ 120.162325][ C0] raw: 00fffe0000000200 ffffea00025de688 ffffea000252c048 ffff8880aa4001c0 [ 120.170938][ C0] raw: ffff8880a1328fc1 ffff8880a1328000 0000000100000025 0000000000000000 [ 120.179501][ C0] page dumped because: kasan: bad access detected [ 120.185895][ C0] [ 120.188206][ C0] Memory state around the buggy address: [ 120.193867][ C0] ffff8880a1328d00: 00 01 fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 120.201917][ C0] ffff8880a1328d80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 120.209993][ C0] >ffff8880a1328e00: 04 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 120.218102][ C0] ^ [ 120.222156][ C0] ffff8880a1328e80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 120.230206][ C0] ffff8880a1328f00: 00 00 01 fc fc fc fc fc fb fb fb fb fc fc fc fc [ 120.238291][ C0] ================================================================== [ 120.246360][ C0] Disabling lock debugging due to kernel taint [ 120.252535][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 120.259114][ C0] CPU: 0 PID: 10822 Comm: syz-executor241 Tainted: G B 5.5.0-rc6-syzkaller #0 [ 120.269238][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.279277][ C0] Call Trace: [ 120.282545][ C0] [ 120.285387][ C0] dump_stack+0x197/0x210 [ 120.289702][ C0] panic+0x2e3/0x75c [ 120.293585][ C0] ? add_taint.cold+0x16/0x16 [ 120.298252][ C0] ? retint_kernel+0x2b/0x2b [ 120.302826][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 120.307835][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 120.312664][ C0] end_report+0x47/0x4f [ 120.316813][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 120.321651][ C0] __kasan_report.cold+0xe/0x41 [ 120.326489][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 120.331320][ C0] kasan_report+0x12/0x20 [ 120.335663][ C0] check_memory_region+0x134/0x1a0 [ 120.340760][ C0] __kasan_check_read+0x11/0x20 [ 120.345592][ C0] bitmap_port_gc+0x112/0x4f0 [ 120.350290][ C0] call_timer_fn+0x1ac/0x780 [ 120.354855][ C0] ? bitmap_port_test+0x170/0x170 [ 120.359863][ C0] ? msleep_interruptible+0x150/0x150 [ 120.365314][ C0] ? run_timer_softirq+0x6b1/0x1790 [ 120.370491][ C0] ? trace_hardirqs_on+0x67/0x240 [ 120.375498][ C0] ? bitmap_port_test+0x170/0x170 [ 120.380508][ C0] ? bitmap_port_test+0x170/0x170 [ 120.385511][ C0] run_timer_softirq+0x6c3/0x1790 [ 120.390512][ C0] ? add_timer+0x930/0x930 [ 120.394906][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 120.401122][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 120.406691][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 120.412660][ C0] ? trace_hardirqs_on+0x67/0x240 [ 120.417669][ C0] __do_softirq+0x262/0x98c [ 120.422153][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 120.426987][ C0] irq_exit+0x19b/0x1e0 [ 120.431131][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 120.436664][ C0] apic_timer_interrupt+0xf/0x20 [ 120.441573][ C0] [ 120.444498][ C0] RIP: 0010:__sanitizer_cov_trace_cmp4+0x1/0x20 [ 120.450716][ C0] Code: 5d c3 0f 1f 80 00 00 00 00 55 0f b7 d6 0f b7 f7 bf 02 00 00 00 48 89 e5 48 8b 4d 08 e8 58 ff ff ff 5d c3 66 0f 1f 44 00 00 55 <89> f2 89 fe bf 04 00 00 00 48 89 e5 48 8b 4d 08 e8 3a ff ff ff 5d [ 120.470302][ C0] RSP: 0000:ffffc90003737b80 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 120.478697][ C0] RAX: ffff8880a330e300 RBX: 0000000020000000 RCX: ffffffff81a1b703 [ 120.486802][ C0] RDX: 0000000000000000 RSI: 0000000000000173 RDI: 0000000000000000 [ 120.495800][ C0] RBP: ffffc90003737bd8 R08: ffff8880a330e300 R09: ffffed1015d0703d [ 120.503748][ C0] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffea0001ef0000 [ 120.511705][ C0] R13: 0000000000000173 R14: 0000000000000000 R15: 0000000000000000 [ 120.519668][ C0] ? clear_subpage+0xd3/0x110 [ 120.524345][ C0] ? clear_huge_page+0xc4/0x3e0 [ 120.529182][ C0] do_huge_pmd_anonymous_page+0x6a6/0x1a50 [ 120.535017][ C0] ? mark_lock+0xc2/0x1220 [ 120.539424][ C0] ? do_wp_page+0x54b/0x1540 [ 120.543996][ C0] ? prep_transhuge_page+0xa0/0xa0 [ 120.549089][ C0] __handle_mm_fault+0x3145/0x3cc0 [ 120.554257][ C0] ? apply_to_existing_page_range+0x50/0x50 [ 120.560130][ C0] ? handle_mm_fault+0x292/0xa50 [ 120.565090][ C0] ? handle_mm_fault+0x7a0/0xa50 [ 120.570009][ C0] ? __kasan_check_read+0x11/0x20 [ 120.575010][ C0] handle_mm_fault+0x3b2/0xa50 [ 120.579831][ C0] __do_page_fault+0x536/0xd80 [ 120.584576][ C0] do_page_fault+0x38/0x590 [ 120.589081][ C0] page_fault+0x39/0x40 [ 120.593254][ C0] RIP: 0033:0x400713 [ 120.597128][ C0] Code: 03 00 00 00 be 10 00 00 00 bf 29 00 00 00 e8 84 0c 04 00 48 83 f8 ff 74 07 48 89 05 87 a9 2c 00 48 b8 62 69 74 6d 61 70 3a 70 <48> c7 04 25 40 01 00 20 00 00 00 00 c7 04 25 48 01 00 20 00 00 00 [ 120.616798][ C0] RSP: 002b:00007fff0e99e500 EFLAGS: 00010213 [ 120.622840][ C0] RAX: 703a70616d746962 RBX: 0000000000000000 RCX: 0000000000441399 [ 120.630829][ C0] RDX: 000000000000000c RSI: 0000000000000003 RDI: 0000000000000010 [ 120.638796][ C0] RBP: 000000000001d2c6 R08: 0000000000000004 R09: 00000000004002c8 [ 120.646878][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004021c0 [ 120.654835][ C0] R13: 0000000000402250 R14: 0000000000000000 R15: 0000000000000000 [ 120.664039][ C0] Kernel Offset: disabled [ 120.668395][ C0] Rebooting in 86400 seconds..