[ 71.493581][ T26] audit: type=1400 audit(1575172472.690:37): avc: denied { watch } for pid=9752 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 [ 71.551489][ T26] audit: type=1400 audit(1575172472.690:38): avc: denied { watch } for pid=9752 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. [ 71.901317][ T26] audit: type=1800 audit(1575172473.100:39): pid=9662 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 [ 71.924443][ T26] audit: type=1800 audit(1575172473.100:40): pid=9662 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: [ 74.599065][ T26] audit: type=1400 audit(1575172475.800:41): avc: denied { map } for pid=9836 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 '10.128.1.45' (ECDSA) to the list of known hosts. executing program [ 82.315691][ T26] audit: type=1400 audit(1575172483.510:42): avc: denied { map } for pid=9848 comm="syz-executor748" path="/root/syz-executor748946718" 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 [ 82.323766][ T9848] [EXFAT] trying to mount... [ 82.349381][ T2583] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 82.361284][ T9848] ------------[ cut here ]------------ [ 82.366960][ T9848] [EXFAT] No bh, device seems wrong or to be ejected. [ 82.374066][ T9848] WARNING: CPU: 0 PID: 9848 at drivers/staging/exfat/exfat_blkdev.c:62 exfat_bdev_read+0x24f/0x2b0 [ 82.384723][ T9848] Kernel panic - not syncing: panic_on_warn set ... [ 82.391398][ T9848] CPU: 0 PID: 9848 Comm: syz-executor748 Not tainted 5.4.0-syzkaller #0 [ 82.399720][ T9848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.409899][ T9848] Call Trace: [ 82.413188][ T9848] dump_stack+0x197/0x210 [ 82.417501][ T9848] ? exfat_bdev_read+0x1e0/0x2b0 [ 82.422424][ T9848] panic+0x2e3/0x75c [ 82.426314][ T9848] ? add_taint.cold+0x16/0x16 [ 82.430985][ T9848] ? __kasan_check_write+0x14/0x20 [ 82.436092][ T9848] ? __warn.cold+0x14/0x3e [ 82.440494][ T9848] ? __warn+0xd9/0x1cf [ 82.444585][ T9848] ? exfat_bdev_read+0x24f/0x2b0 [ 82.449535][ T9848] __warn.cold+0x2f/0x3e [ 82.453786][ T9848] ? exfat_bdev_read+0x24f/0x2b0 [ 82.458756][ T9848] report_bug+0x289/0x300 [ 82.463080][ T9848] do_error_trap+0x11b/0x200 [ 82.467660][ T9848] do_invalid_op+0x37/0x50 [ 82.472059][ T9848] ? exfat_bdev_read+0x24f/0x2b0 [ 82.476977][ T9848] invalid_op+0x23/0x30 [ 82.481110][ T9848] RIP: 0010:exfat_bdev_read+0x24f/0x2b0 [ 82.486657][ T9848] Code: 00 00 31 ff 41 bc fb ff ff ff 89 de e8 4a 9e 9d fb 85 db 0f 85 5d ff ff ff e8 bd 9c 9d fb 48 c7 c7 a0 ae a8 88 e8 30 51 6e fb <0f> 0b e9 45 ff ff ff e8 d5 ed da fb e9 ad fe ff ff e8 8b ed da fb [ 82.506244][ T9848] RSP: 0018:ffff888088227aa0 EFLAGS: 00010282 [ 82.512309][ T9848] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 82.520262][ T9848] RDX: 0000000000000000 RSI: ffffffff815e4316 RDI: ffffed1011044f46 [ 82.528215][ T9848] RBP: ffff888088227ad8 R08: ffff8880a13904c0 R09: ffffed1015d06621 [ 82.536177][ T9848] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: 00000000fffffffb [ 82.544137][ T9848] R13: ffff88808b460000 R14: 0000000000000001 R15: 0000000000000000 [ 82.552122][ T9848] ? vprintk_func+0x86/0x189 [ 82.556704][ T9848] sector_read+0x140/0x1f0 [ 82.561103][ T9848] exfat_fill_super.cold+0x2e4/0x895 [ 82.566379][ T9848] ? exfat_read_root+0x8f0/0x8f0 [ 82.571295][ T9848] ? snprintf+0xbb/0xf0 [ 82.575522][ T9848] ? wait_for_completion+0x440/0x440 [ 82.580789][ T9848] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 82.586500][ T9848] ? set_blocksize+0x2bf/0x340 [ 82.591250][ T9848] mount_bdev+0x304/0x3c0 [ 82.595558][ T9848] ? exfat_read_root+0x8f0/0x8f0 [ 82.600473][ T9848] exfat_fs_mount+0x35/0x40 [ 82.604960][ T9848] ? exfat_remount+0x50/0x50 [ 82.609543][ T9848] legacy_get_tree+0x108/0x220 [ 82.614289][ T9848] vfs_get_tree+0x8e/0x300 [ 82.618684][ T9848] do_mount+0x135a/0x1b50 [ 82.622995][ T9848] ? copy_mount_string+0x40/0x40 [ 82.627918][ T9848] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.634150][ T9848] ? _copy_from_user+0x12c/0x1a0 [ 82.639194][ T9848] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.645798][ T9848] ? copy_mount_options+0x2e8/0x3f0 [ 82.651086][ T9848] ksys_mount+0xdb/0x150 [ 82.655644][ T9848] __x64_sys_mount+0xbe/0x150 [ 82.660470][ T9848] do_syscall_64+0xfa/0x790 [ 82.665084][ T9848] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.671128][ T9848] RIP: 0033:0x440199 [ 82.675104][ T9848] 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 [ 82.694699][ T9848] RSP: 002b:00007ffca0b42078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 82.703892][ T9848] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440199 [ 82.711868][ T9848] RDX: 0000000020000300 RSI: 00000000200002c0 RDI: 0000000020000280 [ 82.719850][ T9848] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 82.727814][ T9848] R10: 0000000000400000 R11: 0000000000000246 R12: 0000000000401a20 [ 82.735778][ T9848] R13: 0000000000401ab0 R14: 0000000000000000 R15: 0000000000000000 [ 82.745265][ T9848] Kernel Offset: disabled [ 82.749684][ T9848] Rebooting in 86400 seconds..