[ 4.558729][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! Starting sshd: OK syzkaller syzkaller login: [ 6.838940][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 11.205944][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 11.205955][ T23] audit: type=1400 audit(1645785274.580:71): avc: denied { transition } for pid=285 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 [ 11.213298][ T23] audit: type=1400 audit(1645785274.580:72): avc: denied { write } for pid=285 comm="sh" path="pipe:[10823]" dev="pipefs" ino=10823 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts. executing program [ 18.427210][ T23] audit: type=1400 audit(1645785281.800:73): avc: denied { execmem } for pid=365 comm="syz-executor341" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.428788][ T366] incfs: Backing dir is not set, filesystem can't be mounted. [ 18.430881][ T23] audit: type=1400 audit(1645785281.800:74): avc: denied { mounton } for pid=366 comm="syz-executor341" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 18.431920][ T366] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 18.436766][ T366] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 18.438438][ T366] CPU: 0 PID: 366 Comm: syz-executor341 Not tainted 5.10.102-syzkaller-00166-gcbfab5c59cf6 #0 [ 18.440254][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.441767][ T366] RIP: 0010:incfs_kill_sb+0x59/0x130 [ 18.442662][ T366] Code: c1 ef 03 43 80 3c 27 00 74 08 4c 89 f7 e8 4f 7e 9c ff 4d 8b 2e 49 8d 5d 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 29 7e 9c ff 48 8b 1b 48 83 c3 30 48 [ 18.445344][ T366] RSP: 0018:ffffc90000b67ab0 EFLAGS: 00010202 [ 18.446168][ T366] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 18.447363][ T366] RDX: 0000000000000000 RSI: ffffc90000b67a58 RDI: ffff88811d3b0000 [ 18.455323][ T366] RBP: ffffc90000b67ae0 R08: dffffc0000000000 R09: 0000000000000003 [ 18.463289][ T366] R10: fffff5200016cec5 R11: 0000000000000004 R12: dffffc0000000000 [ 18.471241][ T366] R13: 0000000000000000 R14: ffff88811d3b03c8 R15: 1ffff11023a76079 [ 18.479205][ T366] FS: 000055555619f300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 18.488119][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.494804][ T366] CR2: 000055f7dae8adf0 CR3: 0000000107bec000 CR4: 00000000003506b0 [ 18.502784][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.510734][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.518874][ T366] Call Trace: [ 18.522327][ T366] deactivate_locked_super+0xb0/0x100 [ 18.527679][ T366] incfs_mount_fs+0x859/0x950 [ 18.532537][ T366] ? incfs_unlink+0x80/0x80 [ 18.537021][ T366] ? selinux_capable+0x39/0x50 [ 18.541763][ T366] legacy_get_tree+0xf0/0x190 [ 18.546414][ T366] ? incfs_unlink+0x80/0x80 [ 18.550909][ T366] vfs_get_tree+0x89/0x270 [ 18.555299][ T366] path_mount+0x1975/0x2ab0 [ 18.559777][ T366] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 18.565310][ T366] ? getname_flags+0x207/0x650 [ 18.570046][ T366] ? user_path_at_empty+0x40/0x50 [ 18.575042][ T366] __se_sys_mount+0x2f7/0x3b0 [ 18.579783][ T366] ? do_mkdirat+0x2d3/0x330 [ 18.584269][ T366] ? __x64_sys_mount+0xd0/0xd0 [ 18.589026][ T366] ? debug_smp_processor_id+0x1c/0x20 [ 18.594371][ T366] __x64_sys_mount+0xbf/0xd0 [ 18.598940][ T366] do_syscall_64+0x31/0x70 [ 18.603327][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.609212][ T366] RIP: 0033:0x7f8aa213fd29 [ 18.613610][ T366] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 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 [ 18.633191][ T366] RSP: 002b:00007ffe402f7288 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 18.641578][ T366] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f8aa213fd29 [ 18.649539][ T366] RDX: 0000000020000200 RSI: 0000000020000040 RDI: 0000000000000000 [ 18.657499][ T366] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe402f7428 [ 18.665446][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8aa21035b0 [ 18.673406][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 18.681352][ T366] Modules linked in: [ 18.685347][ T366] ---[ end trace 402658f4558dd121 ]--- [ 18.690910][ T366] RIP: 0010:incfs_kill_sb+0x59/0x130 [ 18.696182][ T366] Code: c1 ef 03 43 80 3c 27 00 74 08 4c 89 f7 e8 4f 7e 9c ff 4d 8b 2e 49 8d 5d 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 29 7e 9c ff 48 8b 1b 48 83 c3 30 48 [ 18.715836][ T366] RSP: 0018:ffffc90000b67ab0 EFLAGS: 00010202 [ 18.721933][ T366] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 18.729939][ T366] RDX: 0000000000000000 RSI: ffffc90000b67a58 RDI: ffff88811d3b0000 [ 18.737898][ T366] RBP: ffffc90000b67ae0 R08: dffffc0000000000 R09: 0000000000000003 [ 18.745965][ T366] R10: fffff5200016cec5 R11: 0000000000000004 R12: dffffc0000000000 [ 18.754094][ T366] R13: 0000000000000000 R14: ffff88811d3b03c8 R15: 1ffff11023a76079 [ 18.762090][ T366] FS: 000055555619f300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 18.771040][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.777612][ T366] CR2: 0000563dc02a60a8 CR3: 0000000107bec000 CR4: 00000000003506a0 [ 18.785688][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.793667][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.801669][ T366] Kernel panic - not syncing: Fatal exception [ 18.807962][ T366] Kernel Offset: disabled [ 18.812280][ T366] Rebooting in 86400 seconds..