./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1811766833 <...> [ 28.093873][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.107239][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 35.572524][ T27] kauditd_printk_skb: 37 callbacks suppressed [ 35.572539][ T27] audit: type=1400 audit(1664516404.539:73): avc: denied { transition } for pid=3398 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 [ 35.601537][ T27] audit: type=1400 audit(1664516404.549:74): avc: denied { write } for pid=3398 comm="sh" path="pipe:[28794]" dev="pipefs" ino=28794 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.246' (ECDSA) to the list of known hosts. execve("./syz-executor1811766833", ["./syz-executor1811766833"], 0x7ffe2b748240 /* 10 vars */) = 0 brk(NULL) = 0x55555624d000 brk(0x55555624dc40) = 0x55555624dc40 arch_prctl(ARCH_SET_FS, 0x55555624d300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1811766833", 4096) = 28 brk(0x55555626ec40) = 0x55555626ec40 brk(0x55555626f000) = 0x55555626f000 mprotect(0x7f77d7774000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mmap(0x20000000, 16506880, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 userfaultfd(UFFD_USER_MODE_ONLY|O_CLOEXEC) = 3 ioctl(3, UFFDIO_API, 0x20000000) = 0 ioctl(3, UFFDIO_REGISTER, 0x20000080) = 0 [ 43.920642][ T27] audit: type=1400 audit(1664516412.889:75): avc: denied { execmem } for pid=3612 comm="syz-executor181" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 43.923726][ T3612] ------------[ cut here ]------------ [ 43.940880][ T27] audit: type=1400 audit(1664516412.889:76): avc: denied { create } for pid=3612 comm="syz-executor181" anonclass=[userfaultfd] scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 43.945733][ T3612] WARNING: CPU: 1 PID: 3612 at include/linux/swapops.h:323 change_protection+0x16e9/0x4280 [ 43.967866][ T27] audit: type=1400 audit(1664516412.889:77): avc: denied { ioctl } for pid=3612 comm="syz-executor181" path="anon_inode:[userfaultfd]" dev="anon_inodefs" ino=28158 ioctlcmd=0xaa3f scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 43.977408][ T3612] Modules linked in: [ 43.977424][ T3612] CPU: 1 PID: 3612 Comm: syz-executor181 Not tainted 6.0.0-rc7-syzkaller-00130-g511cce163b75 #0 [ 44.018024][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.028132][ T3612] RIP: 0010:change_protection+0x16e9/0x4280 [ 44.034050][ T3612] Code: ff 48 8b 84 24 90 00 00 00 80 38 00 0f 85 25 29 00 00 48 8b 44 24 10 48 83 b8 90 00 00 00 00 0f 84 8f f9 ff ff e8 a7 d6 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 44.053695][ T3612] RSP: 0018:ffffc90002fbf968 EFLAGS: 00010293 [ 44.059800][ T3612] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 44.067795][ T3612] RDX: ffff888073714180 RSI: ffffffff81b76079 RDI: 0000000000000007 [ 44.075801][ T3612] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 44.083758][ T3612] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 44.091751][ T3612] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 44.099745][ T3612] FS: 000055555624d300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 44.108702][ T3612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.115318][ T3612] CR2: 00000000005d84c8 CR3: 000000007c916000 CR4: 00000000003506e0 [ 44.123277][ T3612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.131270][ T3612] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.139294][ T3612] Call Trace: [ 44.142575][ T3612] [ 44.145531][ T3612] ? prot_none_hugetlb_entry+0x100/0x100 [ 44.151191][ T3612] ? lock_release+0x780/0x780 [ 44.155924][ T3612] uffd_wp_range+0xf0/0x180 [ 44.160439][ T3612] ? mcopy_continue+0x16d0/0x16d0 [ 44.165489][ T3612] ? vmacache_find+0x62/0x330 [ 44.170173][ T3612] mwriteprotect_range+0x2ea/0x420 [ 44.175321][ T3612] userfaultfd_ioctl+0x438/0x43a0 [ 44.180358][ T3612] ? do_vfs_ioctl+0x132/0x15c0 [ 44.185145][ T3612] ? vfs_fileattr_set+0xbe0/0xbe0 [ 44.190182][ T3612] ? userfaultfd_release+0x660/0x660 [ 44.195496][ T3612] ? ioctl_has_perm.constprop.0.isra.0+0x29a/0x400 [ 44.202019][ T3612] ? ioctl_has_perm.constprop.0.isra.0+0x2a4/0x400 [ 44.208566][ T3612] ? selinux_inode_getsecctx+0x90/0x90 [ 44.214037][ T3612] ? find_held_lock+0x2d/0x110 [ 44.218829][ T3612] ? calibrate_delay+0x270/0x1120 [ 44.223864][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 44.228743][ T3612] ? selinux_file_ioctl+0xb1/0x270 [ 44.233873][ T3612] ? userfaultfd_release+0x660/0x660 [ 44.239199][ T3612] __x64_sys_ioctl+0x193/0x200 [ 44.243974][ T3612] do_syscall_64+0x35/0xb0 [ 44.248419][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.254323][ T3612] RIP: 0033:0x7f77d7707bb9 [ 44.258766][ T3612] 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 [ 44.278416][ T3612] RSP: 002b:00007ffe74be7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.286894][ T3612] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f77d7707bb9 [ 44.294910][ T3612] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 44.302895][ T3612] RBP: 00007f77d76cbd60 R08: 0000000000000000 R09: 0000000000000000 [ 44.310905][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f77d76cbdf0 [ 44.318897][ T3612] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 44.326895][ T3612] [ 44.329917][ T3612] Kernel panic - not syncing: panic_on_warn set ... [ 44.336489][ T3612] CPU: 1 PID: 3612 Comm: syz-executor181 Not tainted 6.0.0-rc7-syzkaller-00130-g511cce163b75 #0 [ 44.346885][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.356923][ T3612] Call Trace: [ 44.360190][ T3612] [ 44.363107][ T3612] dump_stack_lvl+0xcd/0x134 [ 44.367689][ T3612] panic+0x2c8/0x627 [ 44.371575][ T3612] ? panic_print_sys_info.part.0+0x10b/0x10b [ 44.377542][ T3612] ? __warn.cold+0x248/0x2c4 [ 44.382121][ T3612] ? change_protection+0x16e9/0x4280 [ 44.387393][ T3612] __warn.cold+0x259/0x2c4 [ 44.391803][ T3612] ? change_protection+0x16e9/0x4280 [ 44.397076][ T3612] report_bug+0x1bc/0x210 [ 44.401401][ T3612] handle_bug+0x3c/0x60 [ 44.405553][ T3612] exc_invalid_op+0x14/0x40 [ 44.410060][ T3612] asm_exc_invalid_op+0x16/0x20 [ 44.414913][ T3612] RIP: 0010:change_protection+0x16e9/0x4280 [ 44.420809][ T3612] Code: ff 48 8b 84 24 90 00 00 00 80 38 00 0f 85 25 29 00 00 48 8b 44 24 10 48 83 b8 90 00 00 00 00 0f 84 8f f9 ff ff e8 a7 d6 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 44.440414][ T3612] RSP: 0018:ffffc90002fbf968 EFLAGS: 00010293 [ 44.446480][ T3612] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 44.454448][ T3612] RDX: ffff888073714180 RSI: ffffffff81b76079 RDI: 0000000000000007 [ 44.462415][ T3612] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 44.470380][ T3612] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 44.478351][ T3612] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 44.486327][ T3612] ? change_protection+0x16e9/0x4280 [ 44.491618][ T3612] ? change_protection+0x16e9/0x4280 [ 44.496907][ T3612] ? prot_none_hugetlb_entry+0x100/0x100 [ 44.502540][ T3612] ? lock_release+0x780/0x780 [ 44.507215][ T3612] uffd_wp_range+0xf0/0x180 [ 44.511726][ T3612] ? mcopy_continue+0x16d0/0x16d0 [ 44.516754][ T3612] ? vmacache_find+0x62/0x330 [ 44.521427][ T3612] mwriteprotect_range+0x2ea/0x420 [ 44.526540][ T3612] userfaultfd_ioctl+0x438/0x43a0 [ 44.531567][ T3612] ? do_vfs_ioctl+0x132/0x15c0 [ 44.536330][ T3612] ? vfs_fileattr_set+0xbe0/0xbe0 [ 44.541355][ T3612] ? userfaultfd_release+0x660/0x660 [ 44.546642][ T3612] ? ioctl_has_perm.constprop.0.isra.0+0x29a/0x400 [ 44.553143][ T3612] ? ioctl_has_perm.constprop.0.isra.0+0x2a4/0x400 [ 44.559643][ T3612] ? selinux_inode_getsecctx+0x90/0x90 [ 44.565101][ T3612] ? find_held_lock+0x2d/0x110 [ 44.569868][ T3612] ? calibrate_delay+0x270/0x1120 [ 44.574891][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 44.579740][ T3612] ? selinux_file_ioctl+0xb1/0x270 [ 44.584849][ T3612] ? userfaultfd_release+0x660/0x660 [ 44.590138][ T3612] __x64_sys_ioctl+0x193/0x200 [ 44.594902][ T3612] do_syscall_64+0x35/0xb0 [ 44.599322][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.605213][ T3612] RIP: 0033:0x7f77d7707bb9 [ 44.609629][ T3612] 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 [ 44.629234][ T3612] RSP: 002b:00007ffe74be7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.637644][ T3612] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f77d7707bb9 [ 44.645615][ T3612] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 44.653585][ T3612] RBP: 00007f77d76cbd60 R08: 0000000000000000 R09: 0000000000000000 [ 44.661550][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f77d76cbdf0 [ 44.669516][ T3612] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 44.677485][ T3612] [ 44.680775][ T3612] Kernel Offset: disabled [ 44.685178][ T3612] Rebooting in 86400 seconds..