ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor793431669 <...> syzkaller syzkaller login: [ 16.147095][ T24] kauditd_printk_skb: 29 callbacks suppressed [ 16.147108][ T24] audit: type=1400 audit(1794155938.800:59): avc: denied { transition } for pid=217 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.157987][ T24] audit: type=1400 audit(1794155938.800:60): avc: denied { noatsecure } for pid=217 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.165243][ T24] audit: type=1400 audit(1794155938.800:61): avc: denied { write } for pid=217 comm="sh" path="pipe:[14010]" dev="pipefs" ino=14010 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 16.184329][ T24] audit: type=1400 audit(1794155938.800:62): avc: denied { rlimitinh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.203018][ T24] audit: type=1400 audit(1794155938.800:63): avc: denied { siginh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.246' (ED25519) to the list of known hosts. execve("ci2-android-5-10/syz-executor793431669", ["ci2-android-5-10/syz-executor793431669"], 0x7fff89564a60 /* 10 vars */) = 0 brk(NULL) = 0x55558432b000 brk(0x55558432bd40) = 0x55558432bd40 arch_prctl(ARCH_SET_FS, 0x55558432b3c0) = 0 set_tid_address(0x55558432b690) = 297 set_robust_list(0x55558432b6a0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-5-10/syz-executor793431669", 4096) = 44 getrandom("\xab\x5c\xcb\x7c\xb9\xa1\x5f\x42", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558432bd40 brk(0x55558434cd40) = 0x55558434cd40 brk(0x55558434d000) = 0x55558434d000 mprotect(0x7fca6c4b8000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 executing program write(1, "executing program\n", 18) = 18 openat(AT_FDCWD, "/dev/mapper/control", O_RDWR) = 3 ioctl(3, DM_DEV_CREATE, [{version=[4, 0, 0], data_size=312, name="syza0", flags=0}] => [{version=[4, 44, 0], data_size=305, dev=makedev(0xfd, 0), name="syza0", target_count=0, open_count=0, event_nr=0, flags=0}]) = 0 ioctl(3, DM_TABLE_LOAD, [{version=[4, 0, 0], data_size=440, data_start=312, name="syza0", target_count=1, flags=DM_READONLY_FLAG|DM_SKIP_BDGET_FLAG|DM_DEFERRED_REMOVE}, ...] => [{version=[4, 44, 0], data_size=305, data_start=312, dev=makedev(0xfd, 0), name="syza0", target_count=0, open_count=0, event_nr=0, flags=DM_INACTIVE_PRESENT_FLAG|DM_SKIP_BDGET_FLAG|DM_DEFERRED_REMOVE}]) = 0 [ 26.880179][ T24] audit: type=1400 audit(1794155949.530:64): avc: denied { execmem } for pid=297 comm="syz-executor793" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 26.899773][ T24] audit: type=1400 audit(1794155949.550:65): avc: denied { read write } for pid=297 comm="syz-executor793" name="control" dev="devtmpfs" ino=260 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:lvm_control_t tclass=chr_file permissive=1 [ 26.928732][ T297] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 26.935752][ T24] audit: type=1400 audit(1794155949.550:66): avc: denied { open } for pid=297 comm="syz-executor793" path="/dev/mapper/control" dev="devtmpfs" ino=260 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:lvm_control_t tclass=chr_file permissive=1 [ 26.936608][ T297] #PF: supervisor instruction fetch in kernel mode [ 26.965286][ T24] audit: type=1400 audit(1794155949.550:67): avc: denied { ioctl } for pid=297 comm="syz-executor793" path="/dev/mapper/control" dev="devtmpfs" ino=260 ioctlcmd=0xfd03 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:lvm_control_t tclass=chr_file permissive=1 [ 26.967431][ T297] #PF: error_code(0x0010) - not-present page [ 26.994067][ T24] audit: type=1400 audit(1794155949.620:68): avc: denied { read } for pid=77 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 26.999182][ T297] PGD 0 P4D 0 [ 27.021654][ T24] audit: type=1400 audit(1794155949.620:69): avc: denied { search } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 27.024348][ T297] Oops: 0010 [#1] PREEMPT SMP KASAN [ 27.046233][ T24] audit: type=1400 audit(1794155949.620:70): avc: denied { write } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 27.050808][ T297] CPU: 1 PID: 297 Comm: syz-executor793 Not tainted syzkaller #0 [ 27.050814][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 27.050862][ T297] RIP: 0010:0x0 [ 27.072811][ T24] audit: type=1400 audit(1794155949.620:71): avc: denied { add_name } for pid=77 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 27.079694][ T297] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [ 27.090391][ T24] audit: type=1400 audit(1794155949.620:72): avc: denied { create } for pid=77 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 27.093234][ T297] RSP: 0018:ffffc90000b278d8 EFLAGS: 00010246 [ 27.093247][ T297] RAX: 1ffffffff0d3836f RBX: 1ffff110203bf331 RCX: dffffc0000000000 [ 27.093255][ T297] RDX: ffffc90000b27980 RSI: ffffc90000b27960 RDI: ffff8881083f4980 [ 27.093263][ T297] RBP: ffffc90000b27ad0 R08: ffff888101df99bf R09: 1ffff110203bf337 [ 27.093299][ T297] R10: dffffc0000000000 R11: ffffed10203bf338 R12: ffff888101df99b8 [ 27.114726][ T24] audit: type=1400 audit(1794155949.620:73): avc: denied { append open } for pid=77 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 27.121401][ T297] R13: ffff888101df9988 R14: ffffffff869c1b78 R15: ffff8881083f4980 [ 27.121411][ T297] FS: 000055558432b3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 27.121419][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.121425][ T297] CR2: ffffffffffffffd6 CR3: 0000000100fab000 CR4: 00000000003506a0 [ 27.121471][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.242012][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.250005][ T297] Call Trace: [ 27.253499][ T297] snapshot_merge_next_chunks+0x249/0xbb0 [ 27.259232][ T297] ? debug_smp_processor_id+0x17/0x20 [ 27.264616][ T297] ? __origin_write+0x1760/0x1760 [ 27.269638][ T297] ? kfree+0xc0/0x270 [ 27.273617][ T297] ? ____kasan_slab_free+0x130/0x160 [ 27.279116][ T297] ? __kasan_check_write+0x14/0x20 [ 27.284228][ T297] ? down_write+0xb2/0x120 [ 27.288697][ T297] ? down_read_killable+0xe0/0xe0 [ 27.293723][ T297] ? __kasan_check_write+0x14/0x20 [ 27.298834][ T297] ? up_write+0x57/0x120 [ 27.303077][ T297] ? snapshot_resume+0xe6c/0x1090 [ 27.308101][ T297] snapshot_merge_resume+0x24f/0x2a0 [ 27.313392][ T297] ? snapshot_merge_presuspend+0xd0/0xd0 [ 27.319040][ T297] dm_table_resume_targets+0x222/0x360 [ 27.324512][ T297] __dm_resume+0x25/0x180 [ 27.328955][ T297] dm_resume+0x1c3/0x240 [ 27.333223][ T297] dev_suspend+0x2ae/0x5d0 [ 27.337657][ T297] dm_ctl_ioctl+0x8ee/0xca0 [ 27.342185][ T297] ? dev_rename+0xe60/0xe60 [ 27.346745][ T297] ? dm_poll+0x120/0x120 [ 27.351009][ T297] ? _raw_spin_lock_irq+0x95/0xf0 [ 27.356078][ T297] ? do_notify_parent+0x810/0x810 [ 27.361199][ T297] ? security_file_ioctl+0x84/0xa0 [ 27.366320][ T297] ? dm_poll+0x120/0x120 [ 27.370572][ T297] __se_sys_ioctl+0x121/0x1a0 [ 27.375260][ T297] __x64_sys_ioctl+0x7b/0x90 [ 27.379909][ T297] do_syscall_64+0x31/0x40 [ 27.384341][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.390262][ T297] RIP: 0033:0x7fca6c428039 [ 27.394800][ T297] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 27.414444][ T297] RSP: 002b:00007ffe81233d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.422874][ T297] RAX: ffffffffffffffda RBX: 00007ffe81233e38 RCX: 00007fca6c428039 [ 27.430860][ T297] RDX: 0000200000000740 RSI: 00000000c138fd06 RDI: 0000000000000003 [ 27.438849][ T297] RBP: 0000000000000001 R08: 00007ffe81233e38 R09: 00007ffe81233e38 [ 27.446838][ T297] R10: 0000000000000013 R11: 0000000000000246 R12: 00007ffe81233e28 [ 27.454842][ T297] R13: 0000000000000002 R14: 00007fca6c4b8ca0 R15: 0000000000000002 [ 27.462826][ T297] Modules linked in: [ 27.466883][ T297] CR2: 0000000000000000 [ 27.471097][ T297] ---[ end trace adedcf182aa4ed47 ]--- [ 27.476577][ T297] RIP: 0010:0x0 [ 27.480083][ T297] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [ 27.487812][ T297] RSP: 0018:ffffc90000b278d8 EFLAGS: 00010246 [ 27.493903][ T297] RAX: 1ffffffff0d3836f RBX: 1ffff110203bf331 RCX: dffffc0000000000 [ 27.501889][ T297] RDX: ffffc90000b27980 RSI: ffffc90000b27960 RDI: ffff8881083f4980 [ 27.509875][ T297] RBP: ffffc90000b27ad0 R08: ffff888101df99bf R09: 1ffff110203bf337 [ 27.517862][ T297] R10: dffffc0000000000 R11: ffffed10203bf338 R12: ffff888101df99b8 [ 27.525855][ T297] R13: ffff888101df9988 R14: ffffffff869c1b78 R15: ffff8881083f4980 [ 27.533865][ T297] FS: 000055558432b3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 27.542808][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.549407][ T297] CR2: ffffffffffffffd6 CR3: 0000000100fab000 CR4: 00000000003506a0 [ 27.557505][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.565511][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.573495][ T297] Kernel panic - not syncing: Fatal exception [ 27.579669][ T297] Kernel Offset: disabled [ 27.584136][ T297] Rebooting in 86400 seconds..