forked to background, child pid 192 Starting sshd: OK syzkaller syzkaller login: [ 15.152462][ T22] kauditd_printk_skb: 35 callbacks suppressed [ 15.152468][ T22] audit: type=1400 audit(1646375225.400:71): 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 [ 15.158918][ T22] audit: type=1400 audit(1646375225.410:72): avc: denied { write } for pid=265 comm="sh" path="pipe:[10789]" dev="pipefs" ino=10789 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 66.918123][ T67] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. executing program [ 202.113094][ T22] audit: type=1400 audit(1646375412.360:73): avc: denied { execmem } for pid=299 comm="syz-executor169" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 202.132623][ T22] audit: type=1400 audit(1646375412.370:74): avc: denied { read write } for pid=299 comm="syz-executor169" name="loop0" dev="devtmpfs" ino=9397 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 202.159184][ T302] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 202.159875][ T22] audit: type=1400 audit(1646375412.370:75): avc: denied { open } for pid=299 comm="syz-executor169" path="/dev/loop0" dev="devtmpfs" ino=9397 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 202.192571][ T22] audit: type=1400 audit(1646375412.370:76): avc: denied { ioctl } for pid=299 comm="syz-executor169" path="/dev/loop0" dev="devtmpfs" ino=9397 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 202.218238][ T22] audit: type=1400 audit(1646375412.380:77): avc: denied { mounton } for pid=301 comm="syz-executor169" path="/root/syzkaller.nipCFN/0/file0" dev="sda1" ino=1140 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 202.242554][ T22] audit: type=1400 audit(1646375412.420:78): avc: denied { mount } for pid=301 comm="syz-executor169" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 202.264355][ T22] audit: type=1400 audit(1646375412.420:79): avc: denied { write } for pid=301 comm="syz-executor169" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 202.286156][ T22] audit: type=1400 audit(1646375412.420:80): avc: denied { add_name } for pid=301 comm="syz-executor169" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 executing program [ 202.306849][ T22] audit: type=1400 audit(1646375412.420:81): avc: denied { create } for pid=301 comm="syz-executor169" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 202.327093][ T22] audit: type=1400 audit(1646375412.420:82): avc: denied { write open } for pid=301 comm="syz-executor169" path="/root/syzkaller.nipCFN/0/file0/bus" dev="loop0" ino=17 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 202.392737][ T307] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 202.527587][ T312] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 202.608184][ T320] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 202.620264][ T320] syz-executor169 (320) used greatest stack depth: 26296 bytes left executing program executing program [ 202.732466][ T325] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 202.781523][ T330] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 202.844884][ T335] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 202.924285][ T340] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.013553][ T348] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 203.125949][ T353] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 203.241137][ T358] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.325268][ T364] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.409550][ T369] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 203.486140][ T374] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.544055][ T379] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.611216][ T384] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.726386][ T389] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 203.798359][ T395] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 203.874631][ T400] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 203.946722][ T405] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.006231][ T410] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.067045][ T415] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.124975][ T420] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.201890][ T425] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 204.280804][ T430] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.366530][ T435] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.446032][ T440] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 204.529754][ T445] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 204.568802][ T450] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 204.582642][ T450] syz-executor169 (450) used greatest stack depth: 26128 bytes left executing program executing program [ 204.652634][ T455] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.764379][ T463] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.849097][ T468] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program executing program [ 204.924382][ T473] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 204.974421][ T481] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 205.041985][ T486] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.128326][ T491] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 205.200735][ T496] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.266163][ T501] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.316160][ T506] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.400926][ T511] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.461233][ T516] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.522612][ T521] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 205.642729][ T526] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 205.767835][ T532] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 205.818382][ T537] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 205.872042][ T542] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 205.885777][ T545] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program [ 205.962363][ T547] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.049330][ T552] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.125511][ T557] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.248544][ T562] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.365784][ T567] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 206.456349][ T572] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.525922][ T580] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 206.645750][ T585] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 206.708481][ T590] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.806248][ T595] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 206.928842][ T600] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 206.996750][ T605] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 207.049011][ T610] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 207.128681][ T615] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 207.207120][ T620] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 207.333633][ T625] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 207.414521][ T630] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 207.474272][ T635] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 207.485907][ T638] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program [ 207.925441][ T663] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 212.287158][ T941] syz-executor169 (941) used greatest stack depth: 25992 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 213.333362][ T1025] syz-executor169 (1025) used greatest stack depth: 25984 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 216.525213][ T1261] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 217.375712][ T1311] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program [ 217.634458][ T1336] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 218.250030][ T1386] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program [ 218.612591][ T1398] syz-executor169 (1398) used greatest stack depth: 25928 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 220.446424][ T1518] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 221.734941][ T1610] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program [ 222.086243][ T1629] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program [ 222.207477][ T1634] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 222.764271][ T1676] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 223.985284][ T1763] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 225.049629][ T1828] EXT4-fs error (device loop0): ext4_clear_blocks:843: inode #17: comm syz-executor169: attempt to clear invalid blocks 62218 len 1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 226.516592][ T1929] ------------[ cut here ]------------ [ 226.522150][ T1929] kernel BUG at fs/ext4/inline.c:760! [ 226.527571][ T1929] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 226.534035][ T1929] CPU: 0 PID: 1929 Comm: syz-executor169 Not tainted 5.4.161-syzkaller-00026-g8a3679a75730 #0 [ 226.544325][ T1929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 226.554364][ T1929] RIP: 0010:ext4_write_inline_data_end+0x7da/0x800 [ 226.560834][ T1929] Code: 38 c1 0f 8c bc fc ff ff 48 89 df e8 70 29 d4 ff e9 af fc ff ff 49 ff ce 4c 89 f5 e9 75 fe ff ff e8 8b b2 80 ff e8 a6 0e a7 ff <0f> 0b e8 9f 0e a7 ff 0f 0b e8 98 0e a7 ff 0f 0b e8 91 0e a7 ff 0f [ 226.580410][ T1929] RSP: 0018:ffff8881dc5afa28 EFLAGS: 00010293 [ 226.586468][ T1929] RAX: ffffffff81b998ba RBX: 0000009c00080000 RCX: ffff8881e22e0fc0 [ 226.594412][ T1929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 226.602372][ T1929] RBP: 0000000000000000 R08: ffffffff81b99248 R09: ffffed103b806c80 [ 226.610319][ T1929] R10: ffffed103b806c80 R11: 0000000000000000 R12: 00000000000000a0 [ 226.618263][ T1929] R13: ffff8881dc0364a8 R14: dffffc0000000000 R15: ffffea00077dd700 [ 226.626207][ T1929] FS: 00007f5fb2077700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 226.635123][ T1929] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 226.641677][ T1929] CR2: 00007f5fb2056718 CR3: 00000001ecb56000 CR4: 00000000003406f0 [ 226.649625][ T1929] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 226.657566][ T1929] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 226.665506][ T1929] Call Trace: [ 226.668788][ T1929] ? __up_read+0x28/0x150 [ 226.673100][ T1929] ? schedule+0x152/0x1d0 [ 226.677407][ T1929] ext4_write_end+0x1f7/0xe90 [ 226.682058][ T1929] ? ext4_da_write_begin+0xf50/0xf50 [ 226.687315][ T1929] generic_perform_write+0x398/0x510 [ 226.692574][ T1929] __generic_file_write_iter+0x239/0x480 [ 226.698179][ T1929] ext4_file_write_iter+0x471/0x1050 [ 226.703436][ T1929] ? iov_iter_init+0x83/0x160 [ 226.708087][ T1929] __vfs_write+0x506/0x6b0 [ 226.712489][ T1929] vfs_write+0x212/0x4e0 [ 226.716718][ T1929] ksys_write+0x13f/0x240 [ 226.721023][ T1929] do_syscall_64+0xcb/0x1e0 [ 226.725504][ T1929] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 226.731365][ T1929] RIP: 0033:0x7f5fb20cae19 [ 226.735750][ T1929] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 [ 226.755555][ T1929] RSP: 002b:00007f5fb20772f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 226.764112][ T1929] RAX: ffffffffffffffda RBX: 00007f5fb21504c0 RCX: 00007f5fb20cae19 [ 226.772145][ T1929] RDX: 00000000000000a0 RSI: 0000000020000040 RDI: 0000000000000004 [ 226.780092][ T1929] RBP: 00007f5fb211d0bc R08: 0000000000000000 R09: 0000000000000000 [ 226.788036][ T1929] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fb211c0b8 [ 226.795988][ T1929] R13: 0030656c69662f2e R14: e5d26e84aa4cf3c6 R15: 00007f5fb21504c8 [ 226.804082][ T1929] Modules linked in: [ 226.808056][ T1929] ---[ end trace 568bf65a9065d607 ]--- [ 226.813615][ T1929] RIP: 0010:ext4_write_inline_data_end+0x7da/0x800 [ 226.820232][ T1929] Code: 38 c1 0f 8c bc fc ff ff 48 89 df e8 70 29 d4 ff e9 af fc ff ff 49 ff ce 4c 89 f5 e9 75 fe ff ff e8 8b b2 80 ff e8 a6 0e a7 ff <0f> 0b e8 9f 0e a7 ff 0f 0b e8 98 0e a7 ff 0f 0b e8 91 0e a7 ff 0f [ 226.840036][ T1929] RSP: 0018:ffff8881dc5afa28 EFLAGS: 00010293 [ 226.846106][ T1929] RAX: ffffffff81b998ba RBX: 0000009c00080000 RCX: ffff8881e22e0fc0 [ 226.854470][ T1929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 226.862465][ T1929] RBP: 0000000000000000 R08: ffffffff81b99248 R09: ffffed103b806c80 [ 226.870690][ T1929] R10: ffffed103b806c80 R11: 0000000000000000 R12: 00000000000000a0 [ 226.878768][ T1929] R13: ffff8881dc0364a8 R14: dffffc0000000000 R15: ffffea00077dd700 [ 226.886742][ T1929] FS: 00007f5fb2077700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 226.895803][ T1929] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 226.902416][ T1929] CR2: 00007f5fb210c4f0 CR3: 00000001ecb56000 CR4: 00000000003406f0 [ 226.910545][ T1929] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 226.918574][ T1929] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 226.926547][ T1929] Kernel panic - not syncing: Fatal exception [ 226.932795][ T1929] Kernel Offset: disabled [ 226.937108][ T1929] Rebooting in 86400 seconds..