Warning: Permanently added '10.128.1.6' (ED25519) to the list of known hosts. executing program [ 50.747708][ T3542] loop0: detected capacity change from 0 to 2048 [ 50.763751][ T3542] UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) [ 51.003910][ T3542] ================================================================== [ 51.012017][ T3542] BUG: KASAN: use-after-free in crc_itu_t+0x218/0x2a0 [ 51.018824][ T3542] Read of size 1 at addr ffff8880735a4000 by task syz-executor224/3542 [ 51.027065][ T3542] [ 51.029378][ T3542] CPU: 0 PID: 3542 Comm: syz-executor224 Not tainted 6.1.87-syzkaller #0 [ 51.037770][ T3542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 51.047801][ T3542] Call Trace: [ 51.051062][ T3542] [ 51.053975][ T3542] dump_stack_lvl+0x1e3/0x2cb [ 51.058654][ T3542] ? nf_tcp_handle_invalid+0x642/0x642 [ 51.064094][ T3542] ? panic+0x764/0x764 [ 51.068141][ T3542] ? _printk+0xd1/0x111 [ 51.072274][ T3542] ? __virt_addr_valid+0x17f/0x520 [ 51.077390][ T3542] ? __virt_addr_valid+0x17f/0x520 [ 51.082480][ T3542] print_report+0x15f/0x4f0 [ 51.086964][ T3542] ? __virt_addr_valid+0x17f/0x520 [ 51.092062][ T3542] ? __virt_addr_valid+0x17f/0x520 [ 51.097153][ T3542] ? __virt_addr_valid+0x44a/0x520 [ 51.102241][ T3542] ? __phys_addr+0xb6/0x170 [ 51.106728][ T3542] ? crc_itu_t+0x218/0x2a0 [ 51.111135][ T3542] kasan_report+0x136/0x160 [ 51.115637][ T3542] ? crc_itu_t+0x218/0x2a0 [ 51.120065][ T3542] crc_itu_t+0x218/0x2a0 [ 51.124321][ T3542] udf_sync_fs+0x1ce/0x380 [ 51.128740][ T3542] ? udf_put_super+0x160/0x160 [ 51.133501][ T3542] ? get_nr_dirty_inodes+0x2ab/0x2e0 [ 51.138781][ T3542] sync_filesystem+0xe8/0x220 [ 51.143447][ T3542] generic_shutdown_super+0x6b/0x340 [ 51.148724][ T3542] kill_block_super+0x7a/0xe0 [ 51.153391][ T3542] deactivate_locked_super+0xa0/0x110 [ 51.158759][ T3542] cleanup_mnt+0x490/0x520 [ 51.163165][ T3542] ? lockdep_hardirqs_on+0x94/0x130 [ 51.168349][ T3542] task_work_run+0x246/0x300 [ 51.172948][ T3542] ? kasan_quarantine_put+0xd4/0x220 [ 51.178239][ T3542] ? task_work_cancel+0x2b0/0x2b0 [ 51.183262][ T3542] ? kmem_cache_free+0x292/0x510 [ 51.188192][ T3542] ? do_exit+0xa6e/0x26a0 [ 51.192512][ T3542] do_exit+0xa73/0x26a0 [ 51.196661][ T3542] ? put_task_struct+0x80/0x80 [ 51.201414][ T3542] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 51.207386][ T3542] ? print_irqtrace_events+0x210/0x210 [ 51.212837][ T3542] ? _raw_spin_unlock_irq+0x1f/0x40 [ 51.218027][ T3542] ? lockdep_hardirqs_on+0x94/0x130 [ 51.223215][ T3542] do_group_exit+0x202/0x2b0 [ 51.227798][ T3542] __x64_sys_exit_group+0x3b/0x40 [ 51.232812][ T3542] do_syscall_64+0x3b/0xb0 [ 51.237221][ T3542] ? clear_bhb_loop+0x45/0xa0 [ 51.241892][ T3542] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 51.247794][ T3542] RIP: 0033:0x7fe58ce02e09 [ 51.252209][ T3542] Code: Unable to access opcode bytes at 0x7fe58ce02ddf. [ 51.259219][ T3542] RSP: 002b:00007ffdeca67828 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 51.267622][ T3542] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe58ce02e09 [ 51.275580][ T3542] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 51.283538][ T3542] RBP: 00007fe58ce85390 R08: ffffffffffffffb8 R09: 0000000000000003 [ 51.291496][ T3542] R10: 0000000000007a00 R11: 0000000000000246 R12: 00007fe58ce85390 [ 51.299458][ T3542] R13: 0000000000000000 R14: 00007fe58ce86100 R15: 00007fe58cdd10e0 [ 51.307480][ T3542] [ 51.310489][ T3542] [ 51.312802][ T3542] The buggy address belongs to the physical page: [ 51.319193][ T3542] page:ffffea0001cd6900 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x735a4 [ 51.329327][ T3542] flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) [ 51.336427][ T3542] raw: 00fff80000000000 ffffea0001318048 ffffea0001cd4a08 0000000000000000 [ 51.344994][ T3542] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 51.353556][ T3542] page dumped because: kasan: bad access detected [ 51.359947][ T3542] page_owner tracks the page as freed [ 51.365291][ T3542] page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 3542, tgid 3542 (syz-executor224), ts 50830331692, free_ts 50904555895 [ 51.383247][ T3542] post_alloc_hook+0x18d/0x1b0 [ 51.388001][ T3542] get_page_from_freelist+0x31a1/0x3320 [ 51.393537][ T3542] __alloc_pages+0x28d/0x770 [ 51.398110][ T3542] __folio_alloc+0xf/0x30 [ 51.402425][ T3542] vma_alloc_folio+0x486/0x990 [ 51.407178][ T3542] shmem_alloc_and_acct_folio+0x5a8/0xd50 [ 51.412879][ T3542] shmem_get_folio_gfp+0x13f0/0x3470 [ 51.418153][ T3542] shmem_write_begin+0x16e/0x4e0 [ 51.423075][ T3542] generic_perform_write+0x2fc/0x5e0 [ 51.428343][ T3542] __generic_file_write_iter+0x176/0x400 [ 51.433957][ T3542] generic_file_write_iter+0xab/0x310 [ 51.439312][ T3542] vfs_write+0x7ae/0xba0 [ 51.443536][ T3542] ksys_write+0x19c/0x2c0 [ 51.447848][ T3542] do_syscall_64+0x3b/0xb0 [ 51.452253][ T3542] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 51.458135][ T3542] page last free stack trace: [ 51.462788][ T3542] free_unref_page_prepare+0xf63/0x1120 [ 51.468321][ T3542] free_unref_page_list+0x663/0x900 [ 51.473501][ T3542] release_pages+0x2836/0x2b40 [ 51.478247][ T3542] __pagevec_release+0x80/0xf0 [ 51.482992][ T3542] shmem_undo_range+0x865/0x2390 [ 51.487917][ T3542] shmem_evict_inode+0x265/0xa60 [ 51.492838][ T3542] evict+0x2a4/0x620 [ 51.496723][ T3542] __dentry_kill+0x436/0x650 [ 51.501294][ T3542] dentry_kill+0xbb/0x290 [ 51.505606][ T3542] dput+0xfb/0x1d0 [ 51.509312][ T3542] __fput+0x5e4/0x890 [ 51.513278][ T3542] task_work_run+0x246/0x300 [ 51.517853][ T3542] exit_to_user_mode_loop+0xde/0x100 [ 51.523124][ T3542] exit_to_user_mode_prepare+0xb1/0x140 [ 51.528650][ T3542] syscall_exit_to_user_mode+0x60/0x270 [ 51.534179][ T3542] do_syscall_64+0x47/0xb0 [ 51.538585][ T3542] [ 51.540889][ T3542] Memory state around the buggy address: [ 51.546507][ T3542] ffff8880735a3f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 51.554553][ T3542] ffff8880735a3f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 51.562595][ T3542] >ffff8880735a4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 51.570634][ T3542] ^ [ 51.574681][ T3542] ffff8880735a4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 51.582723][ T3542] ffff8880735a4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 51.590763][ T3542] ================================================================== [ 51.599420][ T3542] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 51.606620][ T3542] CPU: 1 PID: 3542 Comm: syz-executor224 Not tainted 6.1.87-syzkaller #0 [ 51.615038][ T3542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 51.625084][ T3542] Call Trace: [ 51.628352][ T3542] [ 51.631278][ T3542] dump_stack_lvl+0x1e3/0x2cb [ 51.635950][ T3542] ? nf_tcp_handle_invalid+0x642/0x642 [ 51.641409][ T3542] ? panic+0x764/0x764 [ 51.645461][ T3542] ? preempt_schedule_common+0xa6/0xd0 [ 51.650912][ T3542] ? vscnprintf+0x59/0x80 [ 51.655226][ T3542] panic+0x318/0x764 [ 51.659107][ T3542] ? check_panic_on_warn+0x1d/0xa0 [ 51.664203][ T3542] ? memcpy_page_flushcache+0xfc/0xfc [ 51.669574][ T3542] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 51.675540][ T3542] ? _raw_spin_unlock+0x40/0x40 [ 51.680374][ T3542] ? print_report+0x4a3/0x4f0 [ 51.685035][ T3542] check_panic_on_warn+0x7e/0xa0 [ 51.689963][ T3542] ? crc_itu_t+0x218/0x2a0 [ 51.694370][ T3542] end_report+0x66/0x110 [ 51.698596][ T3542] kasan_report+0x143/0x160 [ 51.703086][ T3542] ? crc_itu_t+0x218/0x2a0 [ 51.707491][ T3542] crc_itu_t+0x218/0x2a0 [ 51.711741][ T3542] udf_sync_fs+0x1ce/0x380 [ 51.716148][ T3542] ? udf_put_super+0x160/0x160 [ 51.720900][ T3542] ? get_nr_dirty_inodes+0x2ab/0x2e0 [ 51.726174][ T3542] sync_filesystem+0xe8/0x220 [ 51.730837][ T3542] generic_shutdown_super+0x6b/0x340 [ 51.736109][ T3542] kill_block_super+0x7a/0xe0 [ 51.740771][ T3542] deactivate_locked_super+0xa0/0x110 [ 51.746130][ T3542] cleanup_mnt+0x490/0x520 [ 51.750536][ T3542] ? lockdep_hardirqs_on+0x94/0x130 [ 51.755725][ T3542] task_work_run+0x246/0x300 [ 51.760305][ T3542] ? kasan_quarantine_put+0xd4/0x220 [ 51.765576][ T3542] ? task_work_cancel+0x2b0/0x2b0 [ 51.770591][ T3542] ? kmem_cache_free+0x292/0x510 [ 51.775515][ T3542] ? do_exit+0xa6e/0x26a0 [ 51.779833][ T3542] do_exit+0xa73/0x26a0 [ 51.783975][ T3542] ? put_task_struct+0x80/0x80 [ 51.788726][ T3542] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 51.794694][ T3542] ? print_irqtrace_events+0x210/0x210 [ 51.800143][ T3542] ? _raw_spin_unlock_irq+0x1f/0x40 [ 51.805328][ T3542] ? lockdep_hardirqs_on+0x94/0x130 [ 51.810511][ T3542] do_group_exit+0x202/0x2b0 [ 51.815093][ T3542] __x64_sys_exit_group+0x3b/0x40 [ 51.820106][ T3542] do_syscall_64+0x3b/0xb0 [ 51.824514][ T3542] ? clear_bhb_loop+0x45/0xa0 [ 51.829183][ T3542] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 51.835065][ T3542] RIP: 0033:0x7fe58ce02e09 [ 51.839462][ T3542] Code: Unable to access opcode bytes at 0x7fe58ce02ddf. [ 51.846462][ T3542] RSP: 002b:00007ffdeca67828 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 51.854865][ T3542] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe58ce02e09 [ 51.862828][ T3542] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 51.870785][ T3542] RBP: 00007fe58ce85390 R08: ffffffffffffffb8 R09: 0000000000000003 [ 51.878743][ T3542] R10: 0000000000007a00 R11: 0000000000000246 R12: 00007fe58ce85390 [ 51.886700][ T3542] R13: 0000000000000000 R14: 00007fe58ce86100 R15: 00007fe58cdd10e0 [ 51.894664][ T3542] [ 51.898019][ T3542] Kernel Offset: disabled [ 51.902327][ T3542] Rebooting in 86400 seconds..