Warning: Permanently added '10.128.1.87' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.546272][ T4994] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4994 'syz-executor351' [ 41.581100][ T4994] loop0: detected capacity change from 0 to 8192 [ 41.590784][ T4994] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 41.603828][ T4994] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 41.613024][ T4994] REISERFS (device loop0): using ordered data mode [ 41.619570][ T4994] reiserfs: using flush barriers [ 41.625155][ T4994] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 41.641611][ T4994] REISERFS (device loop0): checking transaction log (loop0) [ 41.670892][ T4994] REISERFS (device loop0): Using r5 hash to sort names [ 41.677895][ T4994] REISERFS (device loop0): using 3.5.x disk format [ 41.684786][ T4994] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 41.696446][ T27] audit: type=1800 audit(1687701908.291:2): pid=4994 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor351" name="bus" dev="loop0" ino=2 res=0 errno=0 [ 41.705025][ T4993] syz-executor351[4993]: segfault at 0 ip 00007fa89d74601a sp 00007ffc8f2c2e10 error 6 [ 41.717016][ T4995] ------------[ cut here ]------------ [ 41.725540][ T4994] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 41.725571][ T4994] CPU: 1 PID: 4994 Comm: syz-executor351 Not tainted 6.4.0-rc7-syzkaller-00226-ga92b7d26c743 #0 [ 41.725590][ T4994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 41.725598][ T4994] Call Trace: [ 41.725605][ T4994] [ 41.725612][ T4994] dump_stack_lvl+0xd9/0x150 [ 41.725655][ T4994] panic+0x686/0x730 [ 41.725678][ T4994] ? panic_smp_self_stop+0xa0/0xa0 [ 41.725704][ T4994] ? finish_task_switch.isra.0+0x2b5/0xc80 [ 41.725726][ T4994] ? lockdep_hardirqs_on+0x7d/0x100 [ 41.725752][ T4994] __schedule+0x5055/0x5880 [ 41.725778][ T4994] ? print_usage_bug.part.0+0x660/0x660 [ 41.725801][ T4994] ? print_usage_bug.part.0+0x660/0x660 [ 41.725829][ T4994] ? io_schedule_timeout+0x150/0x150 [ 41.725854][ T4994] ? mark_held_locks+0x9f/0xe0 [ 41.725879][ T4994] preempt_schedule_irq+0x52/0x90 [ 41.725898][ T4994] irqentry_exit+0x35/0x80 [ 41.725918][ T4994] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 41.725935][ T4994] RIP: 0010:memmove+0x4b/0x1b0 [ 41.725957][ T4994] Code: 01 01 00 00 0f 1f 44 00 00 48 81 fa a8 02 00 00 72 05 40 38 fe 74 48 48 83 ea 20 48 83 ea 20 4c 8b 1e 4c 8b 56 08 4c 8b 4e 10 <4c> 8b 46 18 48 8d 76 20 4c 89 1f 4c 89 57 08 4c 89 4f 10 4c 89 47 [ 41.725972][ T4994] RSP: 0018:ffffc9000390ef90 EFLAGS: 00000282 [ 41.725987][ T4994] RAX: ffff8880734b1030 RBX: 0000000000000000 RCX: 0000000000000000 [ 41.725997][ T4994] RDX: fffffffff67b3789 RSI: ffff88807ccfe700 RDI: ffff88807ccfd730 [ 41.726008][ T4994] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 [ 41.726018][ T4994] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 41.726028][ T4994] R13: 0000000000000fd0 R14: ffff8880734b10d8 R15: 0000000000000008 [ 41.726074][ T4994] leaf_paste_in_buffer+0x270/0xc30 [ 41.726106][ T4994] balance_leaf+0x29c5/0xddc0 [ 41.726134][ T4994] ? replace_key+0x170/0x170 [ 41.726156][ T4994] do_balance+0x319/0x810 [ 41.726173][ T4994] ? get_right_neighbor_position+0x170/0x170 [ 41.726189][ T4994] ? wait_for_completion_io_timeout+0x20/0x20 [ 41.726215][ T4994] ? print_usage_bug.part.0+0x660/0x660 [ 41.726242][ T4994] reiserfs_paste_into_item+0x74b/0x8d0 [ 41.726270][ T4994] ? reiserfs_delete_object+0x210/0x210 [ 41.726293][ T4994] ? lock_downgrade+0x690/0x690 [ 41.726358][ T4994] ? __kmem_cache_alloc_node+0x1b0/0x320 [ 41.726384][ T4994] ? reiserfs_get_block+0x1a67/0x4100 [ 41.726401][ T4994] ? rcu_is_watching+0x12/0xb0 [ 41.726430][ T4994] reiserfs_get_block+0x165c/0x4100 [ 41.726459][ T4994] ? reiserfs_commit_write+0x6f0/0x6f0 [ 41.726482][ T4994] ? fs_reclaim_acquire+0xba/0x160 [ 41.726517][ T4994] ? folio_create_buffers+0x10b/0x160 [ 41.726551][ T4994] ? do_raw_spin_unlock+0x175/0x230 [ 41.726578][ T4994] ? _raw_spin_unlock+0x28/0x40 [ 41.726603][ T4994] __block_write_begin_int+0x3bd/0x14b0 [ 41.726623][ T4994] ? reiserfs_commit_write+0x6f0/0x6f0 [ 41.726646][ T4994] ? invalidate_bh_lrus_cpu+0x140/0x140 [ 41.726663][ T4994] ? folio_flags.constprop.0+0x53/0x150 [ 41.726677][ T4995] AppArmor WARN aa_sock_msg_perm: ((!sock->sk)): [ 41.726696][ T4994] reiserfs_write_begin+0x36e/0xa60 [ 41.726719][ T4994] generic_cont_expand_simple+0x117/0x1f0 [ 41.726745][ T4994] ? end_bio_bh_io_sync+0x130/0x130 [ 41.726775][ T4994] ? setattr_prepare+0x140/0x9b0 [ 41.726802][ T4994] reiserfs_setattr+0x395/0x1370 [ 41.726822][ T4994] ? reiserfs_new_inode+0x2110/0x2110 [ 41.726840][ T4994] ? current_time+0x1fe/0x2c0 [ 41.726861][ T4994] ? evm_inode_setattr+0x7e/0x630 [ 41.726880][ T4994] ? from_vfsuid+0x170/0x170 [ 41.726906][ T4994] ? reiserfs_new_inode+0x2110/0x2110 [ 41.726924][ T4994] notify_change+0xb2c/0x1180 [ 41.726952][ T4994] ? do_truncate+0x143/0x200 [ 41.726972][ T4994] do_truncate+0x143/0x200 [ 41.726992][ T4994] ? file_open_root+0x460/0x460 [ 41.727013][ T4994] ? common_perm_cond+0x22f/0x830 [ 41.727045][ T4994] do_sys_ftruncate+0x53a/0x770 [ 41.727069][ T4994] do_syscall_64+0x39/0xb0 [ 41.727086][ T4994] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 41.727111][ T4994] RIP: 0033:0x7fa89d7102b9 [ 41.727126][ T4994] Code: eb ff ff 44 89 25 77 1e 07 00 48 8b 45 90 48 89 05 2c 43 07 00 48 8b 45 c8 64 48 2b 04 25 28 00 00 00 0f 85 1f 01 00 00 48 8d <65> d8 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 80 00 00 00 [ 41.727141][ T4994] RSP: 002b:00007ffc8f2c2e78 EFLAGS: 00000246 ORIG_RAX: 000000000000004d [ 41.727156][ T4994] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa89d7102b9 [ 41.727167][ T4994] RDX: 00007fa89d7102b9 RSI: 0000000002007fff RDI: 0000000000000004 [ 41.727177][ T4994] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 41.727187][ T4994] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffc8f2c2ea0 [ 41.727197][ T4994] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 41.727217][ T4994] [ 41.733077][ T4994] Kernel Offset: disabled [ 42.199806][ T4994] Rebooting in 86400 seconds..