forked to background, child pid 192 no interfaces have a carrier Starting sshd: OK syzkaller syzkaller login: [ 11.425045][ T22] kauditd_printk_skb: 60 callbacks suppressed [ 11.425054][ T22] audit: type=1400 audit(1650811498.860:71): avc: denied { transition } for pid=264 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 [ 11.429370][ T22] audit: type=1400 audit(1650811498.860:72): avc: denied { write } for pid=264 comm="sh" path="pipe:[10621]" dev="pipefs" ino=10621 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.39' (ECDSA) to the list of known hosts. executing program [ 17.676205][ T22] audit: type=1400 audit(1650811505.110:73): avc: denied { execmem } for pid=298 comm="syz-executor244" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.679719][ T22] audit: type=1400 audit(1650811505.110:74): avc: denied { mounton } for pid=298 comm="syz-executor244" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 17.684033][ T298] ------------[ cut here ]------------ [ 17.684363][ T22] audit: type=1400 audit(1650811505.110:75): avc: denied { mount } for pid=298 comm="syz-executor244" name="/" dev="incremental-fs" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 17.684869][ T298] kernel BUG at fs/attr.c:289! [ 17.688121][ T22] audit: type=1400 audit(1650811505.110:76): avc: denied { setattr } for pid=298 comm="syz-executor244" name="file0" dev="incremental-fs" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 17.689208][ T298] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 17.692821][ T298] CPU: 0 PID: 298 Comm: syz-executor244 Not tainted 5.4.180-syzkaller-00005-gcefc335374d2 #0 [ 17.694188][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.695591][ T298] RIP: 0010:notify_change+0xda2/0xdb0 [ 17.696517][ T298] Code: f5 ff e9 a3 fb ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e3 f7 ff ff 4c 89 e7 e8 18 35 f5 ff e9 d6 f7 ff ff e8 fe d4 c8 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 41 [ 17.716087][ T298] RSP: 0018:ffff8881de447c68 EFLAGS: 00010293 [ 17.722120][ T298] RAX: ffffffff819769e2 RBX: 0000000000001843 RCX: ffff8881de42ee40 [ 17.730060][ T298] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 17.738258][ T298] RBP: 0000000000000001 R08: ffffffff819761e5 R09: ffff8881de447c18 [ 17.746198][ T298] R10: ffffed103bc88f85 R11: 1ffff1103bc88f83 R12: ffff8881de447e00 [ 17.754136][ T298] R13: ffff8881e6e6c550 R14: ffff8881e6cd8618 R15: dffffc0000000000 [ 17.762073][ T298] FS: 0000555556eaf300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 17.770967][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.777515][ T298] CR2: 000055b5153030b8 CR3: 00000001dea41000 CR4: 00000000003406f0 [ 17.785456][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.793396][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.801332][ T298] Call Trace: [ 17.804595][ T298] incfs_setattr+0x1fa/0x360 [ 17.809155][ T298] ? file_release+0x180/0x180 [ 17.813799][ T298] notify_change+0xb19/0xdb0 [ 17.818534][ T298] chown_common+0x311/0x560 [ 17.823021][ T298] do_fchownat+0x124/0x1e0 [ 17.827406][ T298] __x64_sys_lchown+0x81/0x90 [ 17.832052][ T298] do_syscall_64+0xcb/0x1c0 [ 17.836525][ T298] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.842384][ T298] RIP: 0033:0x7fd35c6f6079 [ 17.846767][ T298] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 17.866335][ T298] RSP: 002b:00007fff0d5e3f78 EFLAGS: 00000246 ORIG_RAX: 000000000000005e [ 17.875505][ T298] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fd35c6f6079 [ 17.883443][ T298] RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 00000000200002c0 [ 17.891381][ T298] RBP: 2f30656c69662f2e R08: 0000000000000000 R09: 0000000000000000 [ 17.899320][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd35c6ba0f0 [ 17.907262][ T298] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 17.915213][ T298] Modules linked in: [ 17.919135][ T298] ---[ end trace 334665dba20727d4 ]--- [ 17.924600][ T298] RIP: 0010:notify_change+0xda2/0xdb0 [ 17.929943][ T298] Code: f5 ff e9 a3 fb ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e3 f7 ff ff 4c 89 e7 e8 18 35 f5 ff e9 d6 f7 ff ff e8 fe d4 c8 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 41 [ 17.950262][ T298] RSP: 0018:ffff8881de447c68 EFLAGS: 00010293 [ 17.956331][ T298] RAX: ffffffff819769e2 RBX: 0000000000001843 RCX: ffff8881de42ee40 [ 17.964303][ T298] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 17.972255][ T298] RBP: 0000000000000001 R08: ffffffff819761e5 R09: ffff8881de447c18 [ 17.980226][ T298] R10: ffffed103bc88f85 R11: 1ffff1103bc88f83 R12: ffff8881de447e00 [ 17.988189][ T298] R13: ffff8881e6e6c550 R14: ffff8881e6cd8618 R15: dffffc0000000000 [ 17.996155][ T298] FS: 0000555556eaf300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 18.005074][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.011623][ T298] CR2: 000055b5153030b8 CR3: 00000001dea41000 CR4: 00000000003406f0 [ 18.019598][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.027562][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.035529][ T298] Kernel panic - not syncing: Fatal exception [ 18.041643][ T298] Kernel Offset: disabled [ 18.045943][ T298] Rebooting in 86400 seconds..