[ 41.531960][ T26] audit: type=1800 audit(1571376602.827:26): pid=7793 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.568106][ T26] audit: type=1800 audit(1571376602.827:27): pid=7793 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.590408][ T26] audit: type=1800 audit(1571376602.837:28): pid=7793 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.146527][ T26] audit: type=1800 audit(1571376603.477:29): pid=7793 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.50' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 712.260017][ T7982] BUG: unable to handle page fault for address: ffffc90001923030 [ 712.268451][ T7982] #PF: supervisor read access in kernel mode [ 712.275014][ T7982] #PF: error_code(0x0000) - not-present page [ 712.281510][ T7982] PGD aa551067 P4D aa551067 PUD aa552067 PMD a572b067 PTE 80000000a1173163 [ 712.294572][ T7982] Oops: 0000 [#1] PREEMPT SMP KASAN [ 712.302221][ T7982] CPU: 0 PID: 7982 Comm: syz-executor912 Not tainted 5.4.0-rc3+ #0 [ 712.312972][ T7982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 712.324590][ T7982] RIP: 0010:is_bpf_text_address+0x184/0x3b0 [ 712.332776][ T7982] Code: 89 df e8 ff dd 2e 00 48 8b 1b 48 8d 7b 30 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 05 e8 dc dd 2e 00 <4c> 8b 63 30 48 c7 c0 00 f0 ff ff 49 21 c4 48 83 c3 02 48 89 d8 48 [ 712.355313][ T7982] RSP: 0018:ffff88809569f9c8 EFLAGS: 00010246 [ 712.361885][ T7982] RAX: 1ffff92000324606 RBX: ffffc90001923000 RCX: dffffc0000000000 [ 712.370856][ T7982] RDX: ffff88809d900500 RSI: ffff8880a8227838 RDI: ffffc90001923030 [ 712.379310][ T7982] RBP: ffff88809569fa00 R08: ffffffff817d9d5a R09: ffffed1015d46b05 [ 712.389426][ T7982] R10: ffffed1015d46b05 R11: 0000000000000000 R12: ffff88809d900500 [ 712.398340][ T7982] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a8227838 [ 712.406614][ T7982] FS: 0000000000728880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 712.415617][ T7982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 712.422177][ T7982] CR2: ffffc90001923030 CR3: 0000000096dc4000 CR4: 00000000001406f0 [ 712.430414][ T7982] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 712.439059][ T7982] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 712.447487][ T7982] Call Trace: [ 712.451285][ T7982] ? stack_trace_save+0x150/0x150 [ 712.456848][ T7982] __kernel_text_address+0x9a/0x110 [ 712.462324][ T7982] unwind_get_return_address+0x4c/0x90 [ 712.467799][ T7982] arch_stack_walk+0x98/0xe0 [ 712.472466][ T7982] stack_trace_save+0xb6/0x150 [ 712.477519][ T7982] __kasan_kmalloc+0x11c/0x1b0 [ 712.482447][ T7982] ? __kasan_kmalloc+0x11c/0x1b0 [ 712.487860][ T7982] ? kasan_slab_alloc+0xf/0x20 [ 712.495258][ T7982] ? kmem_cache_alloc+0x1f5/0x2e0 [ 712.500473][ T7982] ? getname_flags+0xba/0x640 [ 712.505301][ T7982] ? getname+0x19/0x20 [ 712.509387][ T7982] ? do_sys_open+0x261/0x560 [ 712.513969][ T7982] ? __x64_sys_open+0x87/0x90 [ 712.518650][ T7982] ? do_syscall_64+0xf7/0x1c0 [ 712.523557][ T7982] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 712.529823][ T7982] ? __fs_reclaim_release+0x4/0x20 [ 712.535111][ T7982] ? kmem_cache_alloc+0x194/0x2e0 [ 712.540287][ T7982] kasan_slab_alloc+0xf/0x20 [ 712.545104][ T7982] kmem_cache_alloc+0x1f5/0x2e0 [ 712.550203][ T7982] ? getname_flags+0xba/0x640 [ 712.555226][ T7982] getname_flags+0xba/0x640 [ 712.560329][ T7982] getname+0x19/0x20 [ 712.565487][ T7982] do_sys_open+0x261/0x560 [ 712.572039][ T7982] __x64_sys_open+0x87/0x90 [ 712.582808][ T7982] do_syscall_64+0xf7/0x1c0 [ 712.587759][ T7982] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 712.597981][ T7982] RIP: 0033:0x4011a0 [ 712.603771][ T7982] Code: 01 f0 ff ff 0f 83 c0 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 15 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0b 00 00 c3 48 83 ec 08 e8 fa 00 00 00 [ 712.633847][ T7982] RSP: 002b:00007ffd6d953f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 712.644186][ T7982] RAX: ffffffffffffffda RBX: 00007ffd6d953f84 RCX: 00000000004011a0 [ 712.656308][ T7982] RDX: 00007ffd6d953f8a RSI: 0000000000080001 RDI: 00000000004a2422 [ 712.666200][ T7982] RBP: 00007ffd6d953f80 R08: 0000000000000000 R09: 0000000000000004 [ 712.674288][ T7982] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004021c0 [ 712.682342][ T7982] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 712.690325][ T7982] Modules linked in: [ 712.694240][ T7982] CR2: ffffc90001923030 [ 712.698472][ T7982] ---[ end trace a62c6ddd9792af6a ]--- [ 712.703930][ T7982] RIP: 0010:is_bpf_text_address+0x184/0x3b0 [ 712.709826][ T7982] Code: 89 df e8 ff dd 2e 00 48 8b 1b 48 8d 7b 30 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 05 e8 dc dd 2e 00 <4c> 8b 63 30 48 c7 c0 00 f0 ff ff 49 21 c4 48 83 c3 02 48 89 d8 48 [ 712.730258][ T7982] RSP: 0018:ffff88809569f9c8 EFLAGS: 00010246 [ 712.736436][ T7982] RAX: 1ffff92000324606 RBX: ffffc90001923000 RCX: dffffc0000000000 [ 712.744392][ T7982] RDX: ffff88809d900500 RSI: ffff8880a8227838 RDI: ffffc90001923030 [ 712.752377][ T7982] RBP: ffff88809569fa00 R08: ffffffff817d9d5a R09: ffffed1015d46b05 [ 712.760357][ T7982] R10: ffffed1015d46b05 R11: 0000000000000000 R12: ffff88809d900500 [ 712.768339][ T7982] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a8227838 [ 712.776297][ T7982] FS: 0000000000728880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 712.785390][ T7982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 712.791973][ T7982] CR2: ffffc90001923030 CR3: 0000000096dc4000 CR4: 00000000001406f0 [ 712.799930][ T7982] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 712.807877][ T7982] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 712.816782][ T7982] Kernel panic - not syncing: Fatal exception [ 712.824534][ T7982] Kernel Offset: disabled [ 712.829092][ T7982] Rebooting in 86400 seconds..