Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.325107][ T4991] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4991 'syz-executor840' [ 38.428781][ T4991] loop0: detected capacity change from 0 to 32768 [ 38.438011][ T4991] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor840 (4991) [ 38.456052][ T4991] BTRFS info (device loop0): using sha256 (sha256-ni) checksum algorithm [ 38.464739][ T4991] BTRFS info (device loop0): enabling auto defrag [ 38.471248][ T4991] BTRFS info (device loop0): enabling disk space caching [ 38.478354][ T4991] BTRFS info (device loop0): disabling tree log [ 38.484622][ T4991] BTRFS info (device loop0): force clearing of disk cache [ 38.491797][ T4991] BTRFS info (device loop0): force zlib compression, level 3 [ 38.499256][ T4991] BTRFS info (device loop0): disabling disk space caching [ 38.518011][ T4991] BTRFS info (device loop0): enabling ssd optimizations [ 38.525005][ T4991] BTRFS info (device loop0): auto enabling async discard [ 38.533718][ T4991] BTRFS info (device loop0): clearing free space tree [ 38.540769][ T4991] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 38.550783][ T4991] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) executing program [ 38.807550][ T5011] loop0: detected capacity change from 0 to 32768 [ 38.815130][ T5011] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor840 (5011) [ 38.831123][ T5011] BTRFS info (device loop0): using sha256 (sha256-ni) checksum algorithm [ 38.839700][ T5011] BTRFS info (device loop0): enabling auto defrag [ 38.846180][ T5011] BTRFS info (device loop0): enabling disk space caching [ 38.853903][ T5011] BTRFS info (device loop0): disabling tree log [ 38.860191][ T5011] BTRFS info (device loop0): force clearing of disk cache [ 38.867353][ T5011] BTRFS info (device loop0): force zlib compression, level 3 [ 38.874737][ T5011] BTRFS info (device loop0): disabling disk space caching [ 38.890934][ T5011] BTRFS info (device loop0): enabling ssd optimizations [ 38.897989][ T5011] BTRFS info (device loop0): auto enabling async discard [ 38.905757][ T5011] BTRFS info (device loop0): clearing free space tree [ 38.913000][ T5011] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 38.922780][ T5011] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) executing program [ 39.181397][ T5039] loop0: detected capacity change from 0 to 32768 [ 39.189267][ T5039] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor840 (5039) [ 39.204532][ T5039] BTRFS info (device loop0): using sha256 (sha256-ni) checksum algorithm [ 39.213145][ T5039] BTRFS info (device loop0): enabling auto defrag [ 39.219623][ T5039] BTRFS info (device loop0): enabling disk space caching [ 39.226698][ T5039] BTRFS info (device loop0): disabling tree log [ 39.232939][ T5039] BTRFS info (device loop0): force clearing of disk cache [ 39.240113][ T5039] BTRFS info (device loop0): force zlib compression, level 3 [ 39.247540][ T5039] BTRFS info (device loop0): disabling disk space caching [ 39.265568][ T5039] BTRFS info (device loop0): enabling ssd optimizations [ 39.272657][ T5039] BTRFS info (device loop0): auto enabling async discard [ 39.280596][ T5039] BTRFS info (device loop0): clearing free space tree [ 39.287438][ T5039] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 39.297116][ T5039] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 39.373245][ T4990] VFS: Busy inodes after unmount of loop0 (btrfs) [ 39.373453][ T4990] ------------[ cut here ]------------ [ 39.385655][ T4990] kernel BUG at fs/super.c:502! [ 39.392374][ T4990] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 39.398483][ T4990] CPU: 0 PID: 4990 Comm: syz-executor840 Not tainted 6.3.0-syzkaller-12049-g58390c8ce1bd #0 [ 39.408635][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 39.418713][ T4990] RIP: 0010:generic_shutdown_super+0x3bb/0x480 [ 39.424887][ T4990] Code: 6b 28 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 c4 00 00 00 48 8b 55 00 48 8d b3 a8 06 00 00 48 c7 c7 60 ce 5b 8a e8 b5 92 81 ff <0f> 0b e8 ee 7a f0 ff e9 6a fc ff ff e8 e4 7a f0 ff e9 f1 fd ff ff [ 39.444840][ T4990] RSP: 0018:ffffc90003aefd80 EFLAGS: 00010286 [ 39.450907][ T4990] RAX: 000000000000002f RBX: ffff8880796de000 RCX: 0000000000000000 [ 39.458859][ T4990] RDX: 0000000000000000 RSI: ffffffff8168cf6c RDI: 0000000000000005 [ 39.466814][ T4990] RBP: ffffffff8ce8d840 R08: 0000000000000005 R09: 0000000000000000 [ 39.474762][ T4990] R10: 0000000080000000 R11: 0000000000000001 R12: ffff8880796de7d8 [ 39.482799][ T4990] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888026cc8040 [ 39.490839][ T4990] FS: 00005555565ba300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 39.499787][ T4990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.506354][ T4990] CR2: 00005555565c3628 CR3: 00000000208f4000 CR4: 0000000000350ef0 [ 39.514311][ T4990] Call Trace: [ 39.517572][ T4990] [ 39.520487][ T4990] kill_anon_super+0x3a/0x60 [ 39.525065][ T4990] btrfs_kill_super+0x3c/0x50 [ 39.529728][ T4990] deactivate_locked_super+0x98/0x160 [ 39.535085][ T4990] deactivate_super+0xb1/0xd0 [ 39.539783][ T4990] cleanup_mnt+0x2ae/0x3d0 [ 39.544205][ T4990] task_work_run+0x16f/0x270 [ 39.548779][ T4990] ? task_work_cancel+0x30/0x30 [ 39.553640][ T4990] ? __x64_sys_umount+0x118/0x190 [ 39.558655][ T4990] exit_to_user_mode_prepare+0x210/0x240 [ 39.564282][ T4990] syscall_exit_to_user_mode+0x1d/0x50 [ 39.569737][ T4990] do_syscall_64+0x46/0xb0 [ 39.574162][ T4990] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 39.580043][ T4990] RIP: 0033:0x7f69d738fdf7 [ 39.584437][ T4990] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 39.604058][ T4990] RSP: 002b:00007ffd2f347af8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 39.612734][ T4990] RAX: 0000000000000000 RBX: 0000000000009870 RCX: 00007f69d738fdf7 [ 39.620692][ T4990] RDX: 00007ffd2f347bb7 RSI: 000000000000000a RDI: 00007ffd2f347bb0 [ 39.628655][ T4990] RBP: 00007ffd2f347bb0 R08: 00000000ffffffff R09: 00007ffd2f347990 [ 39.636611][ T4990] R10: 00005555565bb633 R11: 0000000000000202 R12: 00007ffd2f348c20 [ 39.644605][ T4990] R13: 00005555565bb5f0 R14: 00007ffd2f347b20 R15: 0000000000000003 [ 39.652913][ T4990] [ 39.655915][ T4990] Modules linked in: [ 39.660535][ T4990] ---[ end trace 0000000000000000 ]--- [ 39.666462][ T4990] RIP: 0010:generic_shutdown_super+0x3bb/0x480 [ 39.672779][ T4990] Code: 6b 28 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 c4 00 00 00 48 8b 55 00 48 8d b3 a8 06 00 00 48 c7 c7 60 ce 5b 8a e8 b5 92 81 ff <0f> 0b e8 ee 7a f0 ff e9 6a fc ff ff e8 e4 7a f0 ff e9 f1 fd ff ff [ 39.692732][ T4990] RSP: 0018:ffffc90003aefd80 EFLAGS: 00010286 [ 39.698836][ T4990] RAX: 000000000000002f RBX: ffff8880796de000 RCX: 0000000000000000 [ 39.706870][ T4990] RDX: 0000000000000000 RSI: ffffffff8168cf6c RDI: 0000000000000005 [ 39.714895][ T4990] RBP: ffffffff8ce8d840 R08: 0000000000000005 R09: 0000000000000000 [ 39.723002][ T4990] R10: 0000000080000000 R11: 0000000000000001 R12: ffff8880796de7d8 [ 39.731421][ T4990] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888026cc8040 [ 39.739868][ T4990] FS: 00005555565ba300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 39.748854][ T4990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.755542][ T4990] CR2: 00005555565c3628 CR3: 00000000208f4000 CR4: 0000000000350ef0 [ 39.763847][ T4990] Kernel panic - not syncing: Fatal exception [ 39.770958][ T4990] Kernel Offset: disabled [ 39.775339][ T4990] Rebooting in 86400 seconds..