[ 66.738106][ T26] audit: type=1400 audit(1571289111.700:37): avc: denied { watch } for pid=9329 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 [ 66.781829][ T26] audit: type=1400 audit(1571289111.700:38): avc: denied { watch } for pid=9329 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 OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 66.950979][ T26] audit: type=1800 audit(1571289111.910:39): pid=9235 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 [ 66.973241][ T26] audit: type=1800 audit(1571289111.910:40): pid=9235 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: [ 69.849145][ T26] audit: type=1400 audit(1571289114.810:41): avc: denied { map } for pid=9413 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 '10.128.0.220' (ECDSA) to the list of known hosts. executing program [ 76.317480][ T26] audit: type=1400 audit(1571289121.280:42): avc: denied { map } for pid=9425 comm="syz-executor040" path="/root/syz-executor040593241" 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 [ 76.324210][ T9425] [EXFAT] trying to mount... [ 76.350253][ T2501] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 76.361639][ T9425] ------------[ cut here ]------------ [ 76.367400][ T9425] [EXFAT] No bh, device seems wrong or to be ejected. [ 76.374500][ T9425] WARNING: CPU: 0 PID: 9425 at drivers/staging/exfat/exfat_blkdev.c:62 bdev_read+0x258/0x2b0 [ 76.384905][ T9425] Kernel panic - not syncing: panic_on_warn set ... [ 76.391480][ T9425] CPU: 0 PID: 9425 Comm: syz-executor040 Not tainted 5.4.0-rc3+ #0 [ 76.399348][ T9425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.409487][ T9425] Call Trace: [ 76.412765][ T9425] dump_stack+0x172/0x1f0 [ 76.417079][ T9425] ? bdev_read+0x250/0x2b0 [ 76.421472][ T9425] panic+0x2e3/0x75c [ 76.425354][ T9425] ? add_taint.cold+0x16/0x16 [ 76.430027][ T9425] ? __kasan_check_write+0x14/0x20 [ 76.435115][ T9425] ? __warn.cold+0x14/0x35 [ 76.439508][ T9425] ? __warn+0xd9/0x1d0 [ 76.443559][ T9425] ? bdev_read+0x258/0x2b0 [ 76.447951][ T9425] __warn.cold+0x2f/0x35 [ 76.452175][ T9425] ? bdev_read+0x258/0x2b0 [ 76.456572][ T9425] report_bug+0x289/0x300 [ 76.460883][ T9425] do_error_trap+0x11b/0x200 [ 76.465455][ T9425] do_invalid_op+0x37/0x50 [ 76.469862][ T9425] ? bdev_read+0x258/0x2b0 [ 76.474255][ T9425] invalid_op+0x23/0x30 [ 76.478741][ T9425] RIP: 0010:bdev_read+0x258/0x2b0 [ 76.483744][ T9425] Code: ff df 80 3c 02 00 0f 84 51 ff ff ff 4c 89 e7 e8 9e 05 3a fc e9 44 ff ff ff e8 14 a8 fe fb 48 c7 c7 20 0b 3d 88 e8 c0 ea cf fb <0f> 0b eb 8a e8 7f 04 3a fc e9 17 fe ff ff e8 b5 04 3a fc e9 99 fe [ 76.503326][ T9425] RSP: 0018:ffff8880a4d77ad0 EFLAGS: 00010282 [ 76.509367][ T9425] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 76.517332][ T9425] RDX: 0000000000000000 RSI: ffffffff815cb646 RDI: ffffed10149aef4c [ 76.525284][ T9425] RBP: ffff8880a4d77b10 R08: ffff888099ba4400 R09: ffffed1015d04101 [ 76.533245][ T9425] R10: ffffed1015d04100 R11: ffff8880ae820807 R12: 0000000000000000 [ 76.541763][ T9425] R13: ffff888087d40000 R14: 0000000000000001 R15: 0000000000000200 [ 76.549738][ T9425] ? vprintk_func+0x86/0x189 [ 76.554380][ T9425] sector_read+0x156/0x1e0 [ 76.558780][ T9425] exfat_fill_super.cold+0x4d6/0xdba [ 76.564047][ T9425] ? exfat_read_root+0x8d0/0x8d0 [ 76.568967][ T9425] ? vsprintf+0x40/0x40 [ 76.573115][ T9425] ? wait_for_completion+0x440/0x440 [ 76.578380][ T9425] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 76.584076][ T9425] ? set_blocksize+0x2bf/0x340 [ 76.588820][ T9425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.595037][ T9425] mount_bdev+0x304/0x3c0 [ 76.599504][ T9425] ? exfat_read_root+0x8d0/0x8d0 [ 76.604775][ T9425] exfat_fs_mount+0x35/0x40 [ 76.609266][ T9425] ? exfat_remount+0x50/0x50 [ 76.613834][ T9425] legacy_get_tree+0x108/0x220 [ 76.618576][ T9425] vfs_get_tree+0x8e/0x300 [ 76.622977][ T9425] do_mount+0x143d/0x1d10 [ 76.627296][ T9425] ? copy_mount_string+0x40/0x40 [ 76.632212][ T9425] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.638429][ T9425] ? _copy_from_user+0x12c/0x1a0 [ 76.643345][ T9425] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.649562][ T9425] ? copy_mount_options+0x2e8/0x3f0 [ 76.654742][ T9425] ksys_mount+0xdb/0x150 [ 76.658966][ T9425] __x64_sys_mount+0xbe/0x150 [ 76.663631][ T9425] do_syscall_64+0xfa/0x760 [ 76.668115][ T9425] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.673982][ T9425] RIP: 0033:0x440179 [ 76.677864][ T9425] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 76.697447][ T9425] RSP: 002b:00007fff0f902998 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 76.705922][ T9425] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000440179 [ 76.713871][ T9425] RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000020000400 [ 76.721817][ T9425] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 76.729763][ T9425] R10: 0000000002800001 R11: 0000000000000246 R12: 0000000000401a00 [ 76.737727][ T9425] R13: 0000000000401a90 R14: 0000000000000000 R15: 0000000000000000 [ 76.747338][ T9425] Kernel Offset: disabled [ 76.751730][ T9425] Rebooting in 86400 seconds..