Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts. syzkaller login: [ 38.272197] IPVS: ftp: loaded support on port[0] = 21 executing program [ 38.351678] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) [ 38.374681] ------------[ cut here ]------------ [ 38.379556] WARNING: CPU: 0 PID: 8008 at fs/udf/udfdecl.h:118 udf_free_inode+0x27a/0x2f0 [ 38.387767] Kernel panic - not syncing: panic_on_warn set ... [ 38.387767] [ 38.395106] CPU: 0 PID: 8008 Comm: syz-executor137 Not tainted 4.14.296-syzkaller #0 [ 38.402961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 38.412288] Call Trace: [ 38.414857] dump_stack+0x1b2/0x281 [ 38.418463] panic+0x1f9/0x42d [ 38.421631] ? add_taint.cold+0x16/0x16 [ 38.425583] ? udf_free_inode+0x27a/0x2f0 [ 38.429708] ? udf_free_inode+0x27a/0x2f0 [ 38.433830] __warn.cold+0x20/0x44 [ 38.437347] ? ist_end_non_atomic+0x10/0x10 [ 38.441645] ? udf_free_inode+0x27a/0x2f0 [ 38.445771] report_bug+0x208/0x250 [ 38.449374] do_error_trap+0x195/0x2d0 [ 38.453237] ? math_error+0x2d0/0x2d0 [ 38.457014] ? udf_free_inode+0x88/0x2f0 [ 38.461055] ? __mutex_lock+0x360/0x1310 [ 38.466183] ? lock_downgrade+0x740/0x740 [ 38.470316] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.475149] invalid_op+0x1b/0x40 [ 38.478581] RIP: 0010:udf_free_inode+0x27a/0x2f0 [ 38.483310] RSP: 0018:ffff88809eddfae0 EFLAGS: 00010297 [ 38.488648] RAX: ffff8880b515c400 RBX: ffff88808e2fc6b8 RCX: 0000000000000000 [ 38.495894] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808acca01c [ 38.503139] RBP: ffff88808acca000 R08: 0000000000000000 R09: 000000000004057f [ 38.510384] R10: ffff8880b515ccb0 R11: ffff8880b515c400 R12: ffff8880b2966a40 [ 38.517630] R13: ffff8880963d28f8 R14: ffff8880963d2840 R15: 0000000000000000 [ 38.524889] udf_evict_inode+0x2f0/0x520 [ 38.529019] ? udf_setsize+0xe90/0xe90 [ 38.532884] evict+0x2c8/0x700 [ 38.536055] iput+0x458/0x7e0 [ 38.539140] udf_sb_free_partitions.isra.0+0x6a6/0xaf0 [ 38.544395] ? init_once+0x40/0x40 [ 38.547913] udf_put_super+0x14d/0x2a0 [ 38.551778] ? udf_sb_free_partitions.isra.0+0xaf0/0xaf0 [ 38.557208] generic_shutdown_super+0x144/0x370 [ 38.561856] kill_block_super+0x95/0xe0 [ 38.565808] deactivate_locked_super+0x6c/0xd0 [ 38.570366] deactivate_super+0x7f/0xa0 [ 38.574326] cleanup_mnt+0x186/0x2c0 [ 38.578022] task_work_run+0x11f/0x190 [ 38.581889] do_exit+0xa44/0x2850 [ 38.585321] ? __do_page_fault+0x571/0xad0 [ 38.589561] ? mm_update_next_owner+0x5b0/0x5b0 [ 38.594231] ? lock_downgrade+0x740/0x740 [ 38.598377] do_group_exit+0x100/0x2e0 [ 38.602253] SyS_exit_group+0x19/0x20 [ 38.606037] ? do_group_exit+0x2e0/0x2e0 [ 38.610078] do_syscall_64+0x1d5/0x640 [ 38.613956] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 38.619126] RIP: 0033:0x7feb3a693c39 [ 38.622815] RSP: 002b:00007ffd13915ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.630499] RAX: ffffffffffffffda RBX: 00007feb3a70a3f0 RCX: 00007feb3a693c39 [ 38.637743] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 38.645011] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007feb3a704e40 [ 38.652255] R10: 00007feb3a704e40 R11: 0000000000000246 R12: 00007feb3a70a3f0 [ 38.659962] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 38.667558] Kernel Offset: disabled [ 38.671205] Rebooting in 86400 seconds..