[ 98.710405][ T27] audit: type=1400 audit(1579707058.140:37): avc: denied { watch } for pid=10402 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
[ 98.749281][ T27] audit: type=1400 audit(1579707058.170:38): avc: denied { watch } for pid=10402 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[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 99.053740][ T27] audit: type=1800 audit(1579707058.490:39): pid=10315 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
[ 99.075442][ T27] audit: type=1800 audit(1579707058.490:40): pid=10315 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: [ 104.168725][ T27] audit: type=1400 audit(1579707063.600:41): avc: denied { map } for pid=10491 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 '10.128.0.193' (ECDSA) to the list of known hosts.
executing program
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[ 117.439906][ T27] audit: type=1400 audit(1579707076.870:42): avc: denied { map } for pid=10503 comm="syz-executor335" path="/root/syz-executor335341891" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
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[ 117.470809][ T27] audit: type=1400 audit(1579707076.870:43): avc: denied { create } for pid=10504 comm="syz-executor335" 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
[ 117.495892][ T27] audit: type=1400 audit(1579707076.870:44): avc: denied { write } for pid=10504 comm="syz-executor335" 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
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[ 118.460440][ C1] ==================================================================
[ 118.468915][ C1] BUG: KASAN: slab-out-of-bounds in bitmap_ipmac_gc+0x119/0x590
[ 118.476648][ C1] Read of size 8 at addr ffff888099780a80 by task sshd/10501
[ 118.484119][ C1]
[ 118.486450][ C1] CPU: 1 PID: 10501 Comm: sshd Not tainted 5.5.0-rc7-syzkaller #0
[ 118.494236][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 118.504290][ C1] Call Trace:
[ 118.507574][ C1]
[ 118.510541][ C1] dump_stack+0x197/0x210
[ 118.514907][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 118.519834][ C1] print_address_description.constprop.0.cold+0xd4/0x30b
[ 118.526904][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 118.531834][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 118.536758][ C1] __kasan_report.cold+0x1b/0x41
[ 118.542392][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 118.547394][ C1] kasan_report+0x12/0x20
[ 118.551736][ C1] check_memory_region+0x134/0x1a0
[ 118.556845][ C1] __kasan_check_read+0x11/0x20
[ 118.561754][ C1] bitmap_ipmac_gc+0x119/0x590
[ 118.566518][ C1] call_timer_fn+0x1ac/0x780
[ 118.571102][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 118.576516][ C1] ? msleep_interruptible+0x150/0x150
[ 118.581897][ C1] ? run_timer_softirq+0x6b1/0x1790
[ 118.587214][ C1] ? trace_hardirqs_on+0x67/0x240
[ 118.592261][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 118.597535][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 118.602831][ C1] run_timer_softirq+0x6c3/0x1790
[ 118.607878][ C1] ? add_timer+0x930/0x930
[ 118.612350][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 118.618500][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 118.624050][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 118.630031][ C1] ? trace_hardirqs_on+0x67/0x240
[ 118.635221][ C1] __do_softirq+0x262/0x98c
[ 118.639732][ C1] ? sched_clock_cpu+0x1b/0x1b0
[ 118.644648][ C1] irq_exit+0x19b/0x1e0
[ 118.648805][ C1] smp_apic_timer_interrupt+0x1a3/0x610
[ 118.654355][ C1] apic_timer_interrupt+0xf/0x20
[ 118.659273][ C1]
[ 118.662211][ C1] RIP: 0010:pipe_read+0x0/0xe40
[ 118.667212][ C1] Code: fe ff ff 48 89 55 c0 e8 1e 50 f3 ff 48 8b 55 c0 e9 68 ff ff ff e8 30 50 f3 ff e9 fd fd ff ff e8 26 50 f3 ff e9 08 ff ff ff 90 <55> 48 89 e5 41 57 49 89 f7 48 8d 85 38 ff ff ff 41 56 48 c1 e8 03
[ 118.687150][ C1] RSP: 0018:ffffc90001d5fc58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 118.695556][ C1] RAX: dffffc0000000000 RBX: ffffc90001d5fd80 RCX: ffffffff8399826b
[ 118.703527][ C1] RDX: 1ffffffff106c84c RSI: ffffc90001d5fcc0 RDI: ffffc90001d5fd10
[ 118.711496][ C1] RBP: ffffc90001d5fda8 R08: ffff88809e76e040 R09: 0000000000000000
[ 118.719569][ C1] R10: fffffbfff14f69d0 R11: ffffffff8a7b4e87 R12: ffffffff88364240
[ 118.727632][ C1] R13: ffffc90001d5fcc0 R14: 0000000000000000 R15: 0000000000000000
[ 118.735708][ C1] ? iov_iter_init+0x8b/0x220
[ 118.740402][ C1] ? new_sync_read+0x680/0x800
[ 118.745154][ C1] ? vfs_dedupe_file_range+0x780/0x780
[ 118.750619][ C1] ? security_file_permission+0x8f/0x380
[ 118.756304][ C1] __vfs_read+0xe1/0x110
[ 118.760546][ C1] vfs_read+0x1f0/0x440
[ 118.764703][ C1] ksys_read+0x220/0x290
[ 118.769103][ C1] ? kernel_write+0x130/0x130
[ 118.773839][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 118.779288][ C1] ? do_syscall_64+0x26/0x790
[ 118.783963][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 118.790203][ C1] ? do_syscall_64+0x26/0x790
[ 118.794891][ C1] __x64_sys_read+0x73/0xb0
[ 118.799411][ C1] do_syscall_64+0xfa/0x790
[ 118.804075][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 118.809963][ C1] RIP: 0033:0x7fa29658c310
[ 118.814373][ C1] Code: 73 01 c3 48 8b 0d 28 4b 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d e5 a2 2b 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 6e 8a 01 00 48 89 04 24
[ 118.834278][ C1] RSP: 002b:00007ffe5fbbc298 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 118.842683][ C1] RAX: ffffffffffffffda RBX: 0000558a84516fc0 RCX: 00007fa29658c310
[ 118.850647][ C1] RDX: 0000000000004000 RSI: 00007ffe5fbbc2a0 RDI: 0000000000000009
[ 118.858602][ C1] RBP: 00007fa2981f16a0 R08: 00007ffe5fbc0380 R09: 0101010101010101
[ 118.866576][ C1] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
[ 118.874596][ C1] R13: 0000558a84515b60 R14: 0000558a84515b40 R15: 0000000000000050
[ 118.882722][ C1]
[ 118.885044][ C1] Allocated by task 10504:
[ 118.889458][ C1] save_stack+0x23/0x90
[ 118.893607][ C1] __kasan_kmalloc.constprop.0+0xcf/0xe0
[ 118.899227][ C1] kasan_kmalloc+0x9/0x10
[ 118.903570][ C1] __kmalloc+0x163/0x770
[ 118.907800][ C1] ip_set_alloc+0x38/0x5e
[ 118.912229][ C1] bitmap_ipmac_create+0x4e8/0xa00
[ 118.917343][ C1] ip_set_create+0x6f1/0x1500
[ 118.922045][ C1] nfnetlink_rcv_msg+0xcf2/0xfb0
[ 118.926976][ C1] netlink_rcv_skb+0x177/0x450
[ 118.931775][ C1] nfnetlink_rcv+0x1ba/0x460
[ 118.936358][ C1] netlink_unicast+0x58c/0x7d0
[ 118.941115][ C1] netlink_sendmsg+0x91c/0xea0
[ 118.945882][ C1] sock_sendmsg+0xd7/0x130
[ 118.950293][ C1] ____sys_sendmsg+0x753/0x880
[ 118.955041][ C1] ___sys_sendmsg+0x100/0x170
[ 118.959698][ C1] __sys_sendmsg+0x105/0x1d0
[ 118.964336][ C1] __x64_sys_sendmsg+0x78/0xb0
[ 118.969100][ C1] do_syscall_64+0xfa/0x790
[ 118.973600][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 118.979485][ C1]
[ 118.981994][ C1] Freed by task 10276:
[ 118.986064][ C1] save_stack+0x23/0x90
[ 118.990225][ C1] __kasan_slab_free+0x102/0x150
[ 118.995267][ C1] kasan_slab_free+0xe/0x10
[ 118.999866][ C1] kfree+0x10a/0x2c0
[ 119.003753][ C1] tomoyo_condition+0xd96/0x2a90
[ 119.008698][ C1] tomoyo_check_acl+0x1b7/0x3e0
[ 119.013542][ C1] tomoyo_execute_permission+0x188/0x4a0
[ 119.019174][ C1] tomoyo_find_next_domain+0x348/0x1f6c
[ 119.024807][ C1] tomoyo_bprm_check_security+0x124/0x1a0
[ 119.030514][ C1] security_bprm_check+0x63/0xb0
[ 119.035538][ C1] search_binary_handler+0x71/0x570
[ 119.040721][ C1] __do_execve_file.isra.0+0x1329/0x22b0
[ 119.046336][ C1] __x64_sys_execve+0x8f/0xc0
[ 119.051003][ C1] do_syscall_64+0xfa/0x790
[ 119.055502][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 119.061468][ C1]
[ 119.063788][ C1] The buggy address belongs to the object at ffff888099780a80
[ 119.063788][ C1] which belongs to the cache kmalloc-32 of size 32
[ 119.077665][ C1] The buggy address is located 0 bytes inside of
[ 119.077665][ C1] 32-byte region [ffff888099780a80, ffff888099780aa0)
[ 119.090889][ C1] The buggy address belongs to the page:
[ 119.096522][ C1] page:ffffea000265e000 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff888099780fc1
[ 119.107276][ C1] raw: 00fffe0000000200 ffffea0002853c48 ffffea00029c3c88 ffff8880aa4001c0
[ 119.115865][ C1] raw: ffff888099780fc1 ffff888099780000 0000000100000032 0000000000000000
[ 119.124454][ C1] page dumped because: kasan: bad access detected
[ 119.130899][ C1]
[ 119.133229][ C1] Memory state around the buggy address:
[ 119.138853][ C1] ffff888099780980: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 119.146917][ C1] ffff888099780a00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 119.154976][ C1] >ffff888099780a80: 04 fc fc fc fc fc fc fc 00 00 00 00 fc fc fc fc
[ 119.163083][ C1] ^
[ 119.167220][ C1] ffff888099780b00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 119.175289][ C1] ffff888099780b80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 119.183346][ C1] ==================================================================
[ 119.191393][ C1] Disabling lock debugging due to kernel taint
[ 119.197606][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 119.204203][ C1] CPU: 1 PID: 10501 Comm: sshd Tainted: G B 5.5.0-rc7-syzkaller #0
[ 119.213401][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 119.223471][ C1] Call Trace:
[ 119.227152][ C1]
[ 119.230011][ C1] dump_stack+0x197/0x210
[ 119.234365][ C1] panic+0x2e3/0x75c
[ 119.238274][ C1] ? add_taint.cold+0x16/0x16
[ 119.243172][ C1] ? retint_kernel+0x2b/0x2b
[ 119.247776][ C1] ? trace_hardirqs_on+0x5e/0x240
[ 119.252811][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 119.257753][ C1] end_report+0x47/0x4f
[ 119.261912][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 119.266859][ C1] __kasan_report.cold+0xe/0x41
[ 119.271726][ C1] ? bitmap_ipmac_gc+0x119/0x590
[ 119.276796][ C1] kasan_report+0x12/0x20
[ 119.281136][ C1] check_memory_region+0x134/0x1a0
[ 119.286250][ C1] __kasan_check_read+0x11/0x20
[ 119.291200][ C1] bitmap_ipmac_gc+0x119/0x590
[ 119.295987][ C1] call_timer_fn+0x1ac/0x780
[ 119.300591][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 119.305886][ C1] ? msleep_interruptible+0x150/0x150
[ 119.311271][ C1] ? run_timer_softirq+0x6b1/0x1790
[ 119.316481][ C1] ? trace_hardirqs_on+0x67/0x240
[ 119.321510][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 119.326800][ C1] ? bitmap_ipmac_list+0x1080/0x1080
[ 119.332092][ C1] run_timer_softirq+0x6c3/0x1790
[ 119.337123][ C1] ? add_timer+0x930/0x930
[ 119.341548][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 119.347705][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 119.353387][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 119.360159][ C1] ? trace_hardirqs_on+0x67/0x240
[ 119.365326][ C1] __do_softirq+0x262/0x98c
[ 119.370027][ C1] ? sched_clock_cpu+0x1b/0x1b0
[ 119.374880][ C1] irq_exit+0x19b/0x1e0
[ 119.379057][ C1] smp_apic_timer_interrupt+0x1a3/0x610
[ 119.384613][ C1] apic_timer_interrupt+0xf/0x20
[ 119.389548][ C1]
[ 119.392494][ C1] RIP: 0010:pipe_read+0x0/0xe40
[ 119.397345][ C1] Code: fe ff ff 48 89 55 c0 e8 1e 50 f3 ff 48 8b 55 c0 e9 68 ff ff ff e8 30 50 f3 ff e9 fd fd ff ff e8 26 50 f3 ff e9 08 ff ff ff 90 <55> 48 89 e5 41 57 49 89 f7 48 8d 85 38 ff ff ff 41 56 48 c1 e8 03
[ 119.416958][ C1] RSP: 0018:ffffc90001d5fc58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 119.425374][ C1] RAX: dffffc0000000000 RBX: ffffc90001d5fd80 RCX: ffffffff8399826b
[ 119.433342][ C1] RDX: 1ffffffff106c84c RSI: ffffc90001d5fcc0 RDI: ffffc90001d5fd10
[ 119.441323][ C1] RBP: ffffc90001d5fda8 R08: ffff88809e76e040 R09: 0000000000000000
[ 119.449415][ C1] R10: fffffbfff14f69d0 R11: ffffffff8a7b4e87 R12: ffffffff88364240
[ 119.457651][ C1] R13: ffffc90001d5fcc0 R14: 0000000000000000 R15: 0000000000000000
[ 119.465640][ C1] ? iov_iter_init+0x8b/0x220
[ 119.470331][ C1] ? new_sync_read+0x680/0x800
[ 119.475105][ C1] ? vfs_dedupe_file_range+0x780/0x780
[ 119.480583][ C1] ? security_file_permission+0x8f/0x380
[ 119.486218][ C1] __vfs_read+0xe1/0x110
[ 119.490475][ C1] vfs_read+0x1f0/0x440
[ 119.494644][ C1] ksys_read+0x220/0x290
[ 119.498910][ C1] ? kernel_write+0x130/0x130
[ 119.503603][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 119.509222][ C1] ? do_syscall_64+0x26/0x790
[ 119.513930][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 119.520307][ C1] ? do_syscall_64+0x26/0x790
[ 119.524994][ C1] __x64_sys_read+0x73/0xb0
[ 119.529500][ C1] do_syscall_64+0xfa/0x790
[ 119.534135][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 119.540044][ C1] RIP: 0033:0x7fa29658c310
[ 119.544474][ C1] Code: 73 01 c3 48 8b 0d 28 4b 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d e5 a2 2b 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 6e 8a 01 00 48 89 04 24
[ 119.564077][ C1] RSP: 002b:00007ffe5fbbc298 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 119.572496][ C1] RAX: ffffffffffffffda RBX: 0000558a84516fc0 RCX: 00007fa29658c310
[ 119.580634][ C1] RDX: 0000000000004000 RSI: 00007ffe5fbbc2a0 RDI: 0000000000000009
[ 119.588655][ C1] RBP: 00007fa2981f16a0 R08: 00007ffe5fbc0380 R09: 0101010101010101
[ 119.596747][ C1] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
[ 119.604730][ C1] R13: 0000558a84515b60 R14: 0000558a84515b40 R15: 0000000000000050
[ 119.614300][ C1] Kernel Offset: disabled
[ 119.618780][ C1] Rebooting in 86400 seconds..