Warning: Permanently added '10.128.0.141' (ED25519) to the list of known hosts. executing program syzkaller login: [ 49.638728][ T3500] loop0: detected capacity change from 0 to 2048 [ 49.687882][ T3500] ======================================================= [ 49.687882][ T3500] WARNING: The mand mount option has been deprecated and [ 49.687882][ T3500] and is ignored by this kernel. Remove the mand [ 49.687882][ T3500] option from the mount to silence this warning. [ 49.687882][ T3500] ======================================================= [ 49.741404][ T3500] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 49.862141][ T3500] ================================================================== [ 49.870513][ T3500] BUG: KASAN: use-after-free in crc_itu_t+0x218/0x2a0 [ 49.877528][ T3500] Read of size 1 at addr ffff88807333b000 by task syz-executor251/3500 [ 49.885872][ T3500] [ 49.888216][ T3500] CPU: 1 PID: 3500 Comm: syz-executor251 Not tainted 5.15.156-syzkaller #0 [ 49.896800][ T3500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 49.906855][ T3500] Call Trace: [ 49.910134][ T3500] [ 49.913056][ T3500] dump_stack_lvl+0x1e3/0x2d0 [ 49.917734][ T3500] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 49.923369][ T3500] ? _printk+0xd1/0x120 [ 49.927548][ T3500] ? __wake_up_klogd+0xcc/0x100 [ 49.932415][ T3500] ? panic+0x860/0x860 [ 49.936478][ T3500] ? _raw_spin_lock_irqsave+0xdd/0x120 [ 49.941937][ T3500] print_address_description+0x63/0x3b0 [ 49.947496][ T3500] ? crc_itu_t+0x218/0x2a0 [ 49.951909][ T3500] kasan_report+0x16b/0x1c0 [ 49.956419][ T3500] ? crc_itu_t+0x218/0x2a0 [ 49.960856][ T3500] ? pvclock_gtod_unregister_notifier+0x50/0x50 [ 49.967193][ T3500] crc_itu_t+0x218/0x2a0 [ 49.971545][ T3500] udf_sync_fs+0x1ce/0x380 [ 49.975964][ T3500] ? udf_put_super+0x160/0x160 [ 49.980751][ T3500] ? get_nr_dirty_inodes+0x25f/0x2e0 [ 49.986060][ T3500] sync_filesystem+0xe8/0x220 [ 49.990739][ T3500] generic_shutdown_super+0x6e/0x2c0 [ 49.996023][ T3500] kill_block_super+0x7a/0xe0 [ 50.000699][ T3500] deactivate_locked_super+0xa0/0x110 [ 50.006068][ T3500] cleanup_mnt+0x44e/0x500 [ 50.010505][ T3500] ? lockdep_hardirqs_on+0x94/0x130 [ 50.015812][ T3500] task_work_run+0x129/0x1a0 [ 50.020421][ T3500] do_exit+0x6a3/0x2480 [ 50.024580][ T3500] ? put_task_struct+0x80/0x80 [ 50.029427][ T3500] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 50.035422][ T3500] ? vtime_user_exit+0x2d1/0x400 [ 50.040416][ T3500] do_group_exit+0x144/0x310 [ 50.045020][ T3500] __x64_sys_exit_group+0x3b/0x40 [ 50.050082][ T3500] do_syscall_64+0x3b/0xb0 [ 50.054502][ T3500] ? clear_bhb_loop+0x15/0x70 [ 50.059173][ T3500] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 50.065067][ T3500] RIP: 0033:0x7ffa6c5d7609 [ 50.069505][ T3500] Code: Unable to access opcode bytes at RIP 0x7ffa6c5d75df. [ 50.076860][ T3500] RSP: 002b:00007fffb0288488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 50.085368][ T3500] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ffa6c5d7609 [ 50.093453][ T3500] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 50.101466][ T3500] RBP: 00007ffa6c6812d0 R08: ffffffffffffffb0 R09: 0000000000000004 [ 50.109552][ T3500] R10: 0000000000001400 R11: 0000000000000246 R12: 00007ffa6c6812d0 [ 50.117554][ T3500] R13: 0000000000000000 R14: 00007ffa6c682040 R15: 00007ffa6c5a25c0 [ 50.125566][ T3500] [ 50.128593][ T3500] [ 50.130937][ T3500] The buggy address belongs to the page: [ 50.136558][ T3500] page:ffffea0001cccec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x7333b [ 50.146721][ T3500] flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) [ 50.153837][ T3500] raw: 00fff80000000000 ffffea0002d60508 ffffea0001c6b888 0000000000000000 [ 50.162513][ T3500] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 50.171088][ T3500] page dumped because: kasan: bad access detected [ 50.177491][ T3500] page_owner tracks the page as freed [ 50.182849][ T3500] page last allocated via order 0, migratetype Movable, gfp_mask 0x1100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 3500, ts 49757444759, free_ts 49786088375 [ 50.198388][ T3500] get_page_from_freelist+0x322a/0x33c0 [ 50.204058][ T3500] __alloc_pages+0x272/0x700 [ 50.208665][ T3500] alloc_pages_vma+0x39a/0x800 [ 50.213440][ T3500] handle_mm_fault+0x2f49/0x5950 [ 50.218372][ T3500] exc_page_fault+0x271/0x740 [ 50.223042][ T3500] asm_exc_page_fault+0x22/0x30 [ 50.227887][ T3500] page last free stack trace: [ 50.232562][ T3500] free_unref_page_prepare+0xc34/0xcf0 [ 50.238104][ T3500] free_unref_page_list+0x1f7/0x8e0 [ 50.243294][ T3500] release_pages+0x1bb9/0x1f40 [ 50.248051][ T3500] tlb_finish_mmu+0x177/0x320 [ 50.252845][ T3500] unmap_region+0x304/0x350 [ 50.257350][ T3500] __do_munmap+0x12db/0x1740 [ 50.261952][ T3500] __vm_munmap+0x134/0x230 [ 50.266365][ T3500] __x64_sys_munmap+0x67/0x70 [ 50.271032][ T3500] do_syscall_64+0x3b/0xb0 [ 50.275444][ T3500] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 50.282155][ T3500] [ 50.284466][ T3500] Memory state around the buggy address: [ 50.290170][ T3500] ffff88807333af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 50.298237][ T3500] ffff88807333af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 50.306735][ T3500] >ffff88807333b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 50.314815][ T3500] ^ [ 50.318918][ T3500] ffff88807333b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 50.326980][ T3500] ffff88807333b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 50.335914][ T3500] ================================================================== [ 50.343998][ T3500] Disabling lock debugging due to kernel taint [ 50.351029][ T3500] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 50.358256][ T3500] CPU: 0 PID: 3500 Comm: syz-executor251 Tainted: G B 5.15.156-syzkaller #0 [ 50.368327][ T3500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 50.378486][ T3500] Call Trace: [ 50.381758][ T3500] [ 50.384820][ T3500] dump_stack_lvl+0x1e3/0x2d0 [ 50.389515][ T3500] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 50.395353][ T3500] ? panic+0x860/0x860 [ 50.399455][ T3500] ? preempt_schedule_common+0xa6/0xd0 [ 50.404931][ T3500] ? preempt_schedule+0xd9/0xe0 [ 50.409827][ T3500] panic+0x318/0x860 [ 50.413747][ T3500] ? check_panic_on_warn+0x1d/0xa0 [ 50.418902][ T3500] ? fb_is_primary_device+0xd0/0xd0 [ 50.424142][ T3500] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 50.430314][ T3500] ? _raw_spin_unlock+0x40/0x40 [ 50.435270][ T3500] ? print_memory_metadata+0xe2/0x140 [ 50.440654][ T3500] check_panic_on_warn+0x7e/0xa0 [ 50.445613][ T3500] ? crc_itu_t+0x218/0x2a0 [ 50.450232][ T3500] end_report+0x6d/0xf0 [ 50.454386][ T3500] kasan_report+0x18e/0x1c0 [ 50.458918][ T3500] ? crc_itu_t+0x218/0x2a0 [ 50.463462][ T3500] ? pvclock_gtod_unregister_notifier+0x50/0x50 [ 50.469819][ T3500] crc_itu_t+0x218/0x2a0 [ 50.474075][ T3500] udf_sync_fs+0x1ce/0x380 [ 50.478486][ T3500] ? udf_put_super+0x160/0x160 [ 50.483249][ T3500] ? get_nr_dirty_inodes+0x25f/0x2e0 [ 50.488546][ T3500] sync_filesystem+0xe8/0x220 [ 50.493253][ T3500] generic_shutdown_super+0x6e/0x2c0 [ 50.498556][ T3500] kill_block_super+0x7a/0xe0 [ 50.503418][ T3500] deactivate_locked_super+0xa0/0x110 [ 50.508923][ T3500] cleanup_mnt+0x44e/0x500 [ 50.513529][ T3500] ? lockdep_hardirqs_on+0x94/0x130 [ 50.518725][ T3500] task_work_run+0x129/0x1a0 [ 50.523335][ T3500] do_exit+0x6a3/0x2480 [ 50.527490][ T3500] ? put_task_struct+0x80/0x80 [ 50.532250][ T3500] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 50.538230][ T3500] ? vtime_user_exit+0x2d1/0x400 [ 50.543362][ T3500] do_group_exit+0x144/0x310 [ 50.547997][ T3500] __x64_sys_exit_group+0x3b/0x40 [ 50.553201][ T3500] do_syscall_64+0x3b/0xb0 [ 50.557624][ T3500] ? clear_bhb_loop+0x15/0x70 [ 50.562307][ T3500] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 50.568307][ T3500] RIP: 0033:0x7ffa6c5d7609 [ 50.572747][ T3500] Code: Unable to access opcode bytes at RIP 0x7ffa6c5d75df. [ 50.580204][ T3500] RSP: 002b:00007fffb0288488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 50.588821][ T3500] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ffa6c5d7609 [ 50.596799][ T3500] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 50.604768][ T3500] RBP: 00007ffa6c6812d0 R08: ffffffffffffffb0 R09: 0000000000000004 [ 50.613237][ T3500] R10: 0000000000001400 R11: 0000000000000246 R12: 00007ffa6c6812d0 [ 50.621213][ T3500] R13: 0000000000000000 R14: 00007ffa6c682040 R15: 00007ffa6c5a25c0 [ 50.629359][ T3500] [ 50.632684][ T3500] Kernel Offset: disabled [ 50.637009][ T3500] Rebooting in 86400 seconds..