[ 6.620273][ T134] rcS (134) used greatest stack depth: 26920 bytes left syzkaller syzkaller login: [ 12.631050][ T22] kauditd_printk_skb: 60 callbacks suppressed [ 12.631056][ T22] audit: type=1400 audit(1645253284.960:71): avc: denied { transition } for pid=265 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.636989][ T22] audit: type=1400 audit(1645253284.960:72): avc: denied { write } for pid=265 comm="sh" path="pipe:[10407]" dev="pipefs" ino=10407 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 13.310110][ T266] sshd (266) used greatest stack depth: 26888 bytes left [ 66.907959][ T116] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. executing program [ 552.451321][ T22] audit: type=1400 audit(1645253824.780:73): avc: denied { execmem } for pid=300 comm="syz-executor670" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 552.473510][ T302] incfs: Backing dir is not set, filesystem can't be mounted. [ 552.474819][ T22] audit: type=1400 audit(1645253824.790:74): avc: denied { read write } for pid=300 comm="syz-executor670" name="loop0" dev="devtmpfs" ino=1152 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 552.481210][ T302] kasan: CONFIG_KASAN_INLINE enabled [ 552.505691][ T22] audit: type=1400 audit(1645253824.790:75): avc: denied { open } for pid=300 comm="syz-executor670" path="/dev/loop0" dev="devtmpfs" ino=1152 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 552.510594][ T302] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 552.535307][ T22] audit: type=1400 audit(1645253824.790:76): avc: denied { ioctl } for pid=300 comm="syz-executor670" path="/dev/loop0" dev="devtmpfs" ino=1152 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 552.542965][ T302] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 552.568640][ T22] audit: type=1400 audit(1645253824.800:77): avc: denied { mounton } for pid=302 comm="syz-executor670" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 552.575301][ T302] CPU: 1 PID: 302 Comm: syz-executor670 Not tainted 5.4.161-syzkaller-00007-g2426795494c7 #0 [ 552.608021][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 552.618055][ T302] RIP: 0010:incfs_kill_sb+0x4c/0x100 [ 552.623306][ T302] Code: 8d b3 f0 03 00 00 4d 89 f7 49 c1 ef 03 41 80 3c 2f 00 74 08 4c 89 f7 e8 42 34 b2 ff 4d 8b 2e 49 8d 5d 10 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 26 34 b2 ff 48 8b 1b 48 83 c3 30 48 [ 552.642876][ T302] RSP: 0018:ffff8881de5f7cb0 EFLAGS: 00010202 [ 552.648915][ T302] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff8881de8c9f80 [ 552.656854][ T302] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881de5a6000 [ 552.664796][ T302] RBP: dffffc0000000000 R08: ffffffff821f6304 R09: ffffed103bcbef1e [ 552.672736][ T302] R10: ffffed103bcbef1e R11: 0000000000000000 R12: ffff8881de5a6000 [ 552.680675][ T302] R13: 0000000000000000 R14: ffff8881de5a63f0 R15: 1ffff1103bcb4c7e [ 552.688617][ T302] FS: 0000555555eaf3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 552.697513][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 552.704078][ T302] CR2: 00005622886c3908 CR3: 00000001de5bb000 CR4: 00000000003406e0 [ 552.712021][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 552.719961][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 552.727899][ T302] Call Trace: [ 552.731164][ T302] deactivate_locked_super+0xaf/0x100 [ 552.736509][ T302] incfs_mount_fs+0x772/0x840 [ 552.741156][ T302] legacy_get_tree+0xde/0x170 [ 552.745802][ T302] ? incfs_unlink+0x80/0x80 [ 552.750301][ T302] vfs_get_tree+0x83/0x260 [ 552.754688][ T302] do_mount+0x17be/0x2390 [ 552.758984][ T302] ? copy_mount_options+0xc9/0x300 [ 552.764061][ T302] ksys_mount+0xc2/0xf0 [ 552.768198][ T302] __x64_sys_mount+0xb1/0xc0 [ 552.772758][ T302] do_syscall_64+0xcb/0x1e0 [ 552.777234][ T302] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 552.783112][ T302] RIP: 0033:0x7fed29c7f8a9 [ 552.787496][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 552.807066][ T302] RSP: 002b:00007ffc37e7a198 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 552.815444][ T302] RAX: ffffffffffffffda RBX: 00007ffc37e7a1d8 RCX: 00007fed29c7f8a9 [ 552.823391][ T302] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 0000000000000000 [ 552.831343][ T302] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 552.839298][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc37e7a1d0 [ 552.847242][ T302] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 552.855182][ T302] Modules linked in: [ 552.859136][ T302] ---[ end trace b2b7791a26f651d2 ]--- [ 552.864616][ T302] RIP: 0010:incfs_kill_sb+0x4c/0x100 [ 552.869928][ T302] Code: 8d b3 f0 03 00 00 4d 89 f7 49 c1 ef 03 41 80 3c 2f 00 74 08 4c 89 f7 e8 42 34 b2 ff 4d 8b 2e 49 8d 5d 10 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 26 34 b2 ff 48 8b 1b 48 83 c3 30 48 [ 552.889552][ T302] RSP: 0018:ffff8881de5f7cb0 EFLAGS: 00010202 [ 552.895606][ T302] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff8881de8c9f80 [ 552.903594][ T302] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881de5a6000 [ 552.911586][ T302] RBP: dffffc0000000000 R08: ffffffff821f6304 R09: ffffed103bcbef1e [ 552.919575][ T302] R10: ffffed103bcbef1e R11: 0000000000000000 R12: ffff8881de5a6000 [ 552.927581][ T302] R13: 0000000000000000 R14: ffff8881de5a63f0 R15: 1ffff1103bcb4c7e [ 552.935550][ T302] FS: 0000555555eaf3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 552.944484][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 552.951086][ T302] CR2: 00005622886c3908 CR3: 00000001de5bb000 CR4: 00000000003406e0 [ 552.959079][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 552.967050][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 552.975035][ T302] Kernel panic - not syncing: Fatal exception [ 552.981271][ T302] Kernel Offset: disabled [ 552.985575][ T302] Rebooting in 86400 seconds..