Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.786372][ T5057] loop0: detected capacity change from 0 to 2048 [ 51.794155][ T5057] ======================================================= [ 51.794155][ T5057] WARNING: The mand mount option has been deprecated and [ 51.794155][ T5057] and is ignored by this kernel. Remove the mand [ 51.794155][ T5057] option from the mount to silence this warning. [ 51.794155][ T5057] ======================================================= [ 51.833750][ T5057] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 51.856872][ T27] audit: type=1800 audit(1671928386.115:2): pid=5057 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor104" name="bus" dev="loop0" ino=1357 res=0 errno=0 [ 51.924619][ T5057] ================================================================== [ 51.933113][ T5057] BUG: KASAN: use-after-free in crc_itu_t+0xd2/0xe0 [ 51.939721][ T5057] Read of size 1 at addr ffff88807447f000 by task syz-executor104/5057 [ 51.947952][ T5057] [ 51.950255][ T5057] CPU: 0 PID: 5057 Comm: syz-executor104 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 51.960291][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 51.970325][ T5057] Call Trace: [ 51.973596][ T5057] [ 51.976530][ T5057] dump_stack_lvl+0xd1/0x138 [ 51.981105][ T5057] print_report+0x15e/0x45d [ 51.985590][ T5057] ? __phys_addr+0xc8/0x140 [ 51.990081][ T5057] ? crc_itu_t+0xd2/0xe0 [ 51.994755][ T5057] kasan_report+0xbf/0x1f0 [ 51.999240][ T5057] ? crc_itu_t+0xd2/0xe0 [ 52.003553][ T5057] crc_itu_t+0xd2/0xe0 [ 52.008127][ T5057] udf_finalize_lvid+0xe0/0x1d0 [ 52.012994][ T5057] ? udf_mount+0x40/0x40 [ 52.017395][ T5057] ? get_nr_dirty_inodes+0x11e/0x1b0 [ 52.022693][ T5057] udf_sync_fs+0xea/0x150 [ 52.027031][ T5057] ? udf_finalize_lvid+0x1d0/0x1d0 [ 52.032385][ T5057] sync_filesystem.part.0+0x75/0x1d0 [ 52.037658][ T5057] sync_filesystem+0x8f/0xc0 [ 52.042235][ T5057] generic_shutdown_super+0x74/0x410 [ 52.047686][ T5057] kill_block_super+0x9b/0xf0 [ 52.052357][ T5057] deactivate_locked_super+0x98/0x160 [ 52.057730][ T5057] deactivate_super+0xb1/0xd0 [ 52.062416][ T5057] cleanup_mnt+0x2ae/0x3d0 [ 52.066915][ T5057] task_work_run+0x16f/0x270 [ 52.071760][ T5057] ? task_work_cancel+0x30/0x30 [ 52.076608][ T5057] do_exit+0xaa8/0x2950 [ 52.080848][ T5057] ? lock_downgrade+0x6e0/0x6e0 [ 52.085773][ T5057] ? do_raw_spin_lock+0x124/0x2b0 [ 52.092272][ T5057] ? mm_update_next_owner+0x7b0/0x7b0 [ 52.097660][ T5057] ? rwlock_bug.part.0+0x90/0x90 [ 52.102587][ T5057] ? _raw_spin_unlock_irq+0x23/0x50 [ 52.107774][ T5057] do_group_exit+0xd4/0x2a0 [ 52.112272][ T5057] __x64_sys_exit_group+0x3e/0x50 [ 52.117291][ T5057] do_syscall_64+0x39/0xb0 [ 52.121703][ T5057] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.127583][ T5057] RIP: 0033:0x7f0377271759 [ 52.131976][ T5057] Code: Unable to access opcode bytes at 0x7f037727172f. [ 52.138973][ T5057] RSP: 002b:00007ffd66a71298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 52.147372][ T5057] RAX: ffffffffffffffda RBX: 00007f03772df330 RCX: 00007f0377271759 [ 52.155326][ T5057] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 52.163280][ T5057] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000120080522 [ 52.171255][ T5057] R10: 000080001d00c0d0 R11: 0000000000000246 R12: 00007f03772df330 [ 52.179214][ T5057] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 52.188478][ T5057] [ 52.191480][ T5057] [ 52.193783][ T5057] The buggy address belongs to the physical page: [ 52.200192][ T5057] page:ffffea0001d11fc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x7447f [ 52.210324][ T5057] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 52.217446][ T5057] raw: 00fff00000000000 ffffea0001d12008 ffffea0001cc2a08 0000000000000000 [ 52.226012][ T5057] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 52.234574][ T5057] page dumped because: kasan: bad access detected [ 52.240964][ T5057] page_owner tracks the page as freed [ 52.246307][ T5057] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 4940, tgid 4940 (sshd), ts 45132233703, free_ts 45228930709 [ 52.264439][ T5057] get_page_from_freelist+0x119c/0x2ce0 [ 52.269978][ T5057] __alloc_pages+0x1cb/0x5b0 [ 52.274559][ T5057] __folio_alloc+0x16/0x40 [ 52.278960][ T5057] vma_alloc_folio+0x155/0x870 [ 52.283714][ T5057] __handle_mm_fault+0x1822/0x3c90 [ 52.288813][ T5057] handle_mm_fault+0x1b6/0x850 [ 52.293564][ T5057] do_user_addr_fault+0x475/0x1210 [ 52.298660][ T5057] exc_page_fault+0x98/0x170 [ 52.303259][ T5057] asm_exc_page_fault+0x26/0x30 [ 52.308096][ T5057] page last free stack trace: [ 52.312742][ T5057] free_pcp_prepare+0x65c/0xc00 [ 52.318618][ T5057] free_unref_page_list+0x176/0xcd0 [ 52.323819][ T5057] release_pages+0xcb1/0x1330 [ 52.328568][ T5057] tlb_batch_pages_flush+0xa8/0x1a0 [ 52.333766][ T5057] tlb_finish_mmu+0x14b/0x7e0 [ 52.338428][ T5057] unmap_region+0x22c/0x2b0 [ 52.342915][ T5057] do_mas_align_munmap+0xc44/0x1260 [ 52.348270][ T5057] do_mas_munmap+0x26e/0x2c0 [ 52.352841][ T5057] __vm_munmap+0x14f/0x290 [ 52.357242][ T5057] __x64_sys_munmap+0x59/0x80 [ 52.361918][ T5057] do_syscall_64+0x39/0xb0 [ 52.366343][ T5057] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.372238][ T5057] [ 52.374544][ T5057] Memory state around the buggy address: [ 52.380151][ T5057] ffff88807447ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 52.388193][ T5057] ffff88807447ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 52.396234][ T5057] >ffff88807447f000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 52.404278][ T5057] ^ [ 52.408326][ T5057] ffff88807447f080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 52.416384][ T5057] ffff88807447f100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 52.424432][ T5057] ================================================================== [ 52.437212][ T5057] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 52.444419][ T5057] CPU: 0 PID: 5057 Comm: syz-executor104 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 52.454474][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 52.464534][ T5057] Call Trace: [ 52.467797][ T5057] [ 52.470714][ T5057] dump_stack_lvl+0xd1/0x138 [ 52.475295][ T5057] panic+0x2cc/0x626 [ 52.479181][ T5057] ? panic_print_sys_info.part.0+0x110/0x110 [ 52.485150][ T5057] ? preempt_schedule_thunk+0x1a/0x20 [ 52.490511][ T5057] ? preempt_schedule_common+0x59/0xc0 [ 52.495967][ T5057] check_panic_on_warn.cold+0x19/0x35 [ 52.501334][ T5057] end_report.part.0+0x36/0x73 [ 52.506092][ T5057] ? crc_itu_t+0xd2/0xe0 [ 52.510347][ T5057] kasan_report.cold+0xa/0xf [ 52.514929][ T5057] ? crc_itu_t+0xd2/0xe0 [ 52.519167][ T5057] crc_itu_t+0xd2/0xe0 [ 52.523229][ T5057] udf_finalize_lvid+0xe0/0x1d0 [ 52.528085][ T5057] ? udf_mount+0x40/0x40 [ 52.532312][ T5057] ? get_nr_dirty_inodes+0x11e/0x1b0 [ 52.537592][ T5057] udf_sync_fs+0xea/0x150 [ 52.541904][ T5057] ? udf_finalize_lvid+0x1d0/0x1d0 [ 52.547000][ T5057] sync_filesystem.part.0+0x75/0x1d0 [ 52.552273][ T5057] sync_filesystem+0x8f/0xc0 [ 52.557108][ T5057] generic_shutdown_super+0x74/0x410 [ 52.562384][ T5057] kill_block_super+0x9b/0xf0 [ 52.567151][ T5057] deactivate_locked_super+0x98/0x160 [ 52.572514][ T5057] deactivate_super+0xb1/0xd0 [ 52.577185][ T5057] cleanup_mnt+0x2ae/0x3d0 [ 52.581590][ T5057] task_work_run+0x16f/0x270 [ 52.586175][ T5057] ? task_work_cancel+0x30/0x30 [ 52.591034][ T5057] do_exit+0xaa8/0x2950 [ 52.595233][ T5057] ? lock_downgrade+0x6e0/0x6e0 [ 52.600160][ T5057] ? do_raw_spin_lock+0x124/0x2b0 [ 52.605264][ T5057] ? mm_update_next_owner+0x7b0/0x7b0 [ 52.610625][ T5057] ? rwlock_bug.part.0+0x90/0x90 [ 52.615546][ T5057] ? _raw_spin_unlock_irq+0x23/0x50 [ 52.620733][ T5057] do_group_exit+0xd4/0x2a0 [ 52.625231][ T5057] __x64_sys_exit_group+0x3e/0x50 [ 52.630338][ T5057] do_syscall_64+0x39/0xb0 [ 52.634833][ T5057] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.640975][ T5057] RIP: 0033:0x7f0377271759 [ 52.645546][ T5057] Code: Unable to access opcode bytes at 0x7f037727172f. [ 52.652545][ T5057] RSP: 002b:00007ffd66a71298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 52.660958][ T5057] RAX: ffffffffffffffda RBX: 00007f03772df330 RCX: 00007f0377271759 [ 52.669278][ T5057] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 52.677341][ T5057] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000120080522 [ 52.685298][ T5057] R10: 000080001d00c0d0 R11: 0000000000000246 R12: 00007f03772df330 [ 52.693443][ T5057] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 52.701404][ T5057] [ 52.705011][ T5057] Kernel Offset: disabled [ 52.709353][ T5057] Rebooting in 86400 seconds..