program: syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x8c0, &(0x7f0000000080)={[{@acl}, {@heartbeat_none}, {@dir_resv_level={'dir_resv_level', 0x3d, 0x3}}, {@coherency_full}, {@coherency_full}, {@localflocks}, {@coherency_full}, {@noacl}]}, 0x1, 0x4421, &(0x7f0000004500)="$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r0 = creat(&(0x7f0000000100)='./bus\x00', 0x0) r1 = open(&(0x7f0000000780)='./bus\x00', 0x4417e, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x7ffffe, 0x4002011, r1, 0x0) fallocate(r0, 0x0, 0x0, 0x1000f4) io_setup(0x5ff, &(0x7f0000000040)=0x0) io_submit(r2, 0x1ffffff0, &(0x7f0000001d00)=[&(0x7f0000000080)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f0000000000)="96", 0xffffff20, 0x2000}, &(0x7f0000000740)={0x0, 0x0, 0x41, 0x3, 0x0, r0, 0x0, 0x0, 0xffffffffffffffff, 0xfcffffffffffffff}]) mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x5, 0x3032, 0xffffffffffffffff, 0x0) [ 76.298027][ T5342] loop0: detected capacity change from 0 to 32768 [ 76.303488][ T5342] ======================================================= [ 76.303488][ T5342] WARNING: The mand mount option has been deprecated and [ 76.303488][ T5342] and is ignored by this kernel. Remove the mand [ 76.303488][ T5342] option from the mount to silence this warning. [ 76.303488][ T5342] ======================================================= [ 76.323965][ T5321] Bluetooth: hci0: command tx timeout [ 76.453912][ T5342] JBD2: Ignoring recovery information on journal [ 76.505004][ T5342] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 76.576391][ T26] audit: type=1800 audit(1766458234.872:2): pid=5342 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="bus" dev="loop0" ino=17058 res=0 errno=0 [ 76.617327][ T26] audit: type=1800 audit(1766458234.892:3): pid=5342 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="bus" dev="loop0" ino=17058 res=0 errno=0 [ 76.701907][ T5342] ================================================================== [ 76.705434][ T5342] BUG: KASAN: slab-use-after-free in ocfs2_fault+0xd3/0x3e0 [ 76.708605][ T5342] Read of size 8 at addr ffff888011a81198 by task syz.0.0/5342 [ 76.711780][ T5342] [ 76.712838][ T5342] CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.712852][ T5342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.712859][ T5342] Call Trace: [ 76.712867][ T5342] [ 76.712872][ T5342] dump_stack_lvl+0xe8/0x150 [ 76.712892][ T5342] print_report+0xca/0x240 [ 76.712904][ T5342] ? ocfs2_fault+0xd3/0x3e0 [ 76.712915][ T5342] kasan_report+0x118/0x150 [ 76.712927][ T5342] ? ocfs2_fault+0xd3/0x3e0 [ 76.712937][ T5342] ocfs2_fault+0xd3/0x3e0 [ 76.712947][ T5342] ? kasan_save_track+0x4f/0x80 [ 76.712962][ T5342] ? __pfx_ocfs2_fault+0x10/0x10 [ 76.712976][ T5342] __do_fault+0x138/0x390 [ 76.712994][ T5342] do_pte_missing+0x6ad/0x3330 [ 76.713013][ T5342] ? handle_mm_fault+0xdb/0x32b0 [ 76.713026][ T5342] handle_mm_fault+0x1b26/0x32b0 [ 76.713039][ T5342] ? __pte_offset_map_lock+0x13e/0x210 [ 76.713054][ T5342] ? handle_mm_fault+0xdb/0x32b0 [ 76.713067][ T5342] ? __pfx_handle_mm_fault+0x10/0x10 [ 76.713079][ T5342] ? follow_page_pte+0x7ef/0x13e0 [ 76.713092][ T5342] ? __pfx_follow_page_pte+0x10/0x10 [ 76.713105][ T5342] __get_user_pages+0x1650/0x29f0 [ 76.713122][ T5342] __gup_longterm_locked+0xde4/0x1660 [ 76.713138][ T5342] ? sanity_check_pinned_pages+0x1241/0x1300 [ 76.713151][ T5342] gup_fast_fallback+0x1d26/0x2290 [ 76.713170][ T5342] ? __pfx_gup_fast_fallback+0x10/0x10 [ 76.713181][ T5342] ? pin_user_pages_fast+0x4d/0xb0 [ 76.713203][ T5342] iov_iter_extract_pages+0x35f/0x5e0 [ 76.713217][ T5342] __blockdev_direct_IO+0x1166/0x3490 [ 76.713240][ T5342] ? __pfx___blockdev_direct_IO+0x10/0x10 [ 76.713254][ T5342] ? __pfx_ocfs2_lock_get_block+0x10/0x10 [ 76.713269][ T5342] ? filemap_write_and_wait_range+0x27a/0x320 [ 76.713282][ T5342] ? __pfx_filemap_write_and_wait_range+0x10/0x10 [ 76.713295][ T5342] ? ocfs2_commit_trans+0x133/0x230 [ 76.713315][ T5342] ? __pfx_ocfs2_lock_get_block+0x10/0x10 [ 76.713325][ T5342] ocfs2_direct_IO+0x25f/0x2d0 [ 76.713339][ T5342] generic_file_read_iter+0x31c/0x510 [ 76.713353][ T5342] ? _raw_spin_unlock+0x28/0x50 [ 76.713411][ T5342] ocfs2_file_read_iter+0x3e2/0xa40 [ 76.713424][ T5342] ? __pfx_ocfs2_file_read_iter+0x10/0x10 [ 76.713436][ T5342] ? common_file_perm+0x1b5/0x220 [ 76.713450][ T5342] ? rw_verify_area+0x2a6/0x4d0 [ 76.713464][ T5342] ? import_ubuf+0xfb/0x1d0 [ 76.713477][ T5342] aio_read+0x311/0x470 [ 76.713492][ T5342] ? __pfx_aio_read+0x10/0x10 [ 76.713510][ T5342] ? __might_fault+0xb0/0x130 [ 76.713525][ T5342] io_submit_one+0x755/0x1430 [ 76.713540][ T5342] ? irqentry_exit+0x5dd/0x660 [ 76.713551][ T5342] ? __pfx_io_submit_one+0x10/0x10 [ 76.713563][ T5342] ? __might_fault+0xb0/0x130 [ 76.713579][ T5342] ? __might_fault+0xb0/0x130 [ 76.713592][ T5342] __se_sys_io_submit+0x185/0x320 [ 76.713603][ T5342] ? __pfx___se_sys_io_submit+0x10/0x10 [ 76.713620][ T5342] do_syscall_64+0xec/0xf80 [ 76.713630][ T5342] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.713640][ T5342] ? trace_irq_disable+0x37/0x100 [ 76.713655][ T5342] ? clear_bhb_loop+0x60/0xb0 [ 76.713665][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.713676][ T5342] RIP: 0033:0x7fae23f8f7c9 [ 76.713688][ T5342] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 76.713698][ T5342] RSP: 002b:00007fae24ee5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 76.713713][ T5342] RAX: ffffffffffffffda RBX: 00007fae241e5fa0 RCX: 00007fae23f8f7c9 [ 76.713721][ T5342] RDX: 0000200000001d00 RSI: 000000001ffffff0 RDI: 00007fae24e8b000 [ 76.713729][ T5342] RBP: 00007fae24013f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.713736][ T5342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.713742][ T5342] R13: 00007fae241e6038 R14: 00007fae241e5fa0 R15: 00007fff5e252248 [ 76.713757][ T5342] [ 76.713761][ T5342] [ 76.882732][ T5342] Allocated by task 5342: [ 76.884639][ T5342] kasan_save_track+0x3e/0x80 [ 76.886828][ T5342] __kasan_slab_alloc+0x6c/0x80 [ 76.888903][ T5342] kmem_cache_alloc_noprof+0x37d/0x710 [ 76.891306][ T5342] vm_area_alloc+0x24/0x140 [ 76.893286][ T5342] mmap_region+0xdea/0x1d10 [ 76.895261][ T5342] do_mmap+0xc45/0x10d0 [ 76.897084][ T5342] vm_mmap_pgoff+0x2a6/0x4d0 [ 76.899135][ T5342] ksys_mmap_pgoff+0x51f/0x760 [ 76.901208][ T5342] do_syscall_64+0xec/0xf80 [ 76.903222][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.906146][ T5342] [ 76.907361][ T5342] Freed by task 15: [ 76.909262][ T5342] kasan_save_track+0x3e/0x80 [ 76.911533][ T5342] kasan_save_free_info+0x46/0x50 [ 76.913716][ T5342] __kasan_slab_free+0x5c/0x80 [ 76.915859][ T5342] slab_free_after_rcu_debug+0x125/0x260 [ 76.918236][ T5342] rcu_core+0xc8e/0x1720 [ 76.920015][ T5342] handle_softirqs+0x22b/0x7c0 [ 76.922011][ T5342] run_ksoftirqd+0x36/0x60 [ 76.923986][ T5342] smpboot_thread_fn+0x542/0xa60 [ 76.926173][ T5342] kthread+0x711/0x8a0 [ 76.928070][ T5342] ret_from_fork+0x510/0xa50 [ 76.930239][ T5342] ret_from_fork_asm+0x1a/0x30 [ 76.932629][ T5342] [ 76.933782][ T5342] Last potentially related work creation: [ 76.936456][ T5342] kasan_save_stack+0x3e/0x60 [ 76.938705][ T5342] kasan_record_aux_stack+0xbd/0xd0 [ 76.941148][ T5342] kmem_cache_free+0x475/0x620 [ 76.943332][ T5342] vms_complete_munmap_vmas+0x626/0x8a0 [ 76.945741][ T5342] __mmap_complete+0x7b/0x610 [ 76.947686][ T5342] mmap_region+0x190d/0x1d10 [ 76.949680][ T5342] do_mmap+0xc45/0x10d0 [ 76.951453][ T5342] vm_mmap_pgoff+0x2a6/0x4d0 [ 76.953320][ T5342] do_syscall_64+0xec/0xf80 [ 76.955324][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.958383][ T5342] [ 76.960034][ T5342] The buggy address belongs to the object at ffff888011a81140 [ 76.960034][ T5342] which belongs to the cache vm_area_struct of size 256 [ 76.968663][ T5342] The buggy address is located 88 bytes inside of [ 76.968663][ T5342] freed 256-byte region [ffff888011a81140, ffff888011a81240) [ 76.975873][ T5342] [ 76.977181][ T5342] The buggy address belongs to the physical page: [ 76.980042][ T5342] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888011a81640 pfn:0x11a81 [ 76.984654][ T5342] memcg:ffff888011f45a81 [ 76.986652][ T5342] flags: 0xfff00000000200(workingset|node=0|zone=1|lastcpupid=0x7ff) [ 76.990334][ T5342] page_type: f5(slab) [ 76.992140][ T5342] raw: 00fff00000000200 ffff88801b6d2b40 ffffea000046fe10 ffffea00004410d0 [ 76.996084][ T5342] raw: ffff888011a81640 00000000000c0009 00000000f5000000 ffff888011f45a81 [ 77.000094][ T5342] page dumped because: kasan: bad access detected [ 77.002868][ T5342] page_owner tracks the page as allocated [ 77.005339][ T5342] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5031, tgid 5031 (dhcpcd), ts 45633377589, free_ts 45621909031 [ 77.013101][ T5342] post_alloc_hook+0x234/0x290 [ 77.014758][ T5342] get_page_from_freelist+0x24e0/0x2580 [ 77.016930][ T5342] __alloc_frozen_pages_noprof+0x181/0x370 [ 77.019325][ T5342] alloc_pages_mpol+0x232/0x4a0 [ 77.021544][ T5342] allocate_slab+0x86/0x3b0 [ 77.023510][ T5342] ___slab_alloc+0xe53/0x1820 [ 77.025645][ T5342] __kmem_cache_alloc_bulk+0x1ac/0x4e0 [ 77.027926][ T5342] __pcs_replace_empty_main+0x298/0x560 [ 77.030067][ T5342] kmem_cache_alloc_noprof+0x469/0x710 [ 77.032134][ T5342] vm_area_alloc+0x24/0x140 [ 77.033880][ T5342] mmap_region+0xdea/0x1d10 [ 77.035570][ T5342] do_mmap+0xc45/0x10d0 [ 77.037202][ T5342] vm_mmap_pgoff+0x2a6/0x4d0 [ 77.038944][ T5342] elf_load+0x248/0x6c0 [ 77.040649][ T5342] load_elf_binary+0x1079/0x2740 [ 77.042652][ T5342] bprm_execve+0x92e/0x1400 [ 77.044645][ T5342] page last free pid 15 tgid 15 stack trace: [ 77.047400][ T5342] __free_frozen_pages+0xbc8/0xd30 [ 77.049484][ T5342] tlb_remove_table_rcu+0x85/0x100 [ 77.052063][ T5342] rcu_core+0xc8e/0x1720 [ 77.054202][ T5342] handle_softirqs+0x22b/0x7c0 [ 77.056854][ T5342] run_ksoftirqd+0x36/0x60 [ 77.059188][ T5342] smpboot_thread_fn+0x542/0xa60 [ 77.061193][ T5342] kthread+0x711/0x8a0 [ 77.062887][ T5342] ret_from_fork+0x510/0xa50 [ 77.064805][ T5342] ret_from_fork_asm+0x1a/0x30 [ 77.066797][ T5342] [ 77.067868][ T5342] Memory state around the buggy address: [ 77.070214][ T5342] ffff888011a81080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.073584][ T5342] ffff888011a81100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 77.077011][ T5342] >ffff888011a81180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.080328][ T5342] ^ [ 77.082355][ T5342] ffff888011a81200: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 77.085637][ T5342] ffff888011a81280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.088979][ T5342] ================================================================== [ 77.165337][ T5342] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 77.168689][ T5342] CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 77.172658][ T5342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 77.177500][ T5342] Call Trace: [ 77.179066][ T5342] [ 77.180160][ T5342] vpanic+0x1e0/0x670 [ 77.181890][ T5342] panic+0xb9/0xc0 [ 77.183656][ T5342] ? __pfx_panic+0x10/0x10 [ 77.185981][ T5342] ? preempt_schedule_thunk+0x16/0x30 [ 77.188741][ T5342] ? ocfs2_fault+0xd3/0x3e0 [ 77.190789][ T5342] check_panic_on_warn+0x89/0xb0 [ 77.192935][ T5342] ? ocfs2_fault+0xd3/0x3e0 [ 77.194851][ T5342] end_report+0x6f/0x140 [ 77.196745][ T5342] kasan_report+0x129/0x150 [ 77.198696][ T5342] ? ocfs2_fault+0xd3/0x3e0 [ 77.200783][ T5342] ocfs2_fault+0xd3/0x3e0 [ 77.202688][ T5342] ? kasan_save_track+0x4f/0x80 [ 77.204702][ T5342] ? __pfx_ocfs2_fault+0x10/0x10 [ 77.206775][ T5342] __do_fault+0x138/0x390 [ 77.208569][ T5342] do_pte_missing+0x6ad/0x3330 [ 77.210673][ T5342] ? handle_mm_fault+0xdb/0x32b0 [ 77.212820][ T5342] handle_mm_fault+0x1b26/0x32b0 [ 77.215002][ T5342] ? __pte_offset_map_lock+0x13e/0x210 [ 77.217395][ T5342] ? handle_mm_fault+0xdb/0x32b0 [ 77.219493][ T5342] ? __pfx_handle_mm_fault+0x10/0x10 [ 77.221928][ T5342] ? follow_page_pte+0x7ef/0x13e0 [ 77.224251][ T5342] ? __pfx_follow_page_pte+0x10/0x10 [ 77.226678][ T5342] __get_user_pages+0x1650/0x29f0 [ 77.228939][ T5342] __gup_longterm_locked+0xde4/0x1660 [ 77.231250][ T5342] ? sanity_check_pinned_pages+0x1241/0x1300 [ 77.233800][ T5342] gup_fast_fallback+0x1d26/0x2290 [ 77.236043][ T5342] ? __pfx_gup_fast_fallback+0x10/0x10 [ 77.238612][ T5342] ? pin_user_pages_fast+0x4d/0xb0 [ 77.240890][ T5342] iov_iter_extract_pages+0x35f/0x5e0 [ 77.243255][ T5342] __blockdev_direct_IO+0x1166/0x3490 [ 77.245693][ T5342] ? __pfx___blockdev_direct_IO+0x10/0x10 [ 77.248174][ T5342] ? __pfx_ocfs2_lock_get_block+0x10/0x10 [ 77.250823][ T5342] ? filemap_write_and_wait_range+0x27a/0x320 [ 77.253455][ T5342] ? __pfx_filemap_write_and_wait_range+0x10/0x10 [ 77.256170][ T5342] ? ocfs2_commit_trans+0x133/0x230 [ 77.258542][ T5342] ? __pfx_ocfs2_lock_get_block+0x10/0x10 [ 77.260785][ T5342] ocfs2_direct_IO+0x25f/0x2d0 [ 77.262864][ T5342] generic_file_read_iter+0x31c/0x510 [ 77.265231][ T5342] ? _raw_spin_unlock+0x28/0x50 [ 77.267404][ T5342] ocfs2_file_read_iter+0x3e2/0xa40 [ 77.270690][ T5342] ? __pfx_ocfs2_file_read_iter+0x10/0x10 [ 77.274601][ T5342] ? common_file_perm+0x1b5/0x220 [ 77.276842][ T5342] ? rw_verify_area+0x2a6/0x4d0 [ 77.280069][ T5342] ? import_ubuf+0xfb/0x1d0 [ 77.283178][ T5342] aio_read+0x311/0x470 [ 77.285100][ T5342] ? __pfx_aio_read+0x10/0x10 [ 77.287196][ T5342] ? __might_fault+0xb0/0x130 [ 77.289271][ T5342] io_submit_one+0x755/0x1430 [ 77.291357][ T5342] ? irqentry_exit+0x5dd/0x660 [ 77.293420][ T5342] ? __pfx_io_submit_one+0x10/0x10 [ 77.295790][ T5342] ? __might_fault+0xb0/0x130 [ 77.297932][ T5342] ? __might_fault+0xb0/0x130 [ 77.300059][ T5342] __se_sys_io_submit+0x185/0x320 [ 77.302388][ T5342] ? __pfx___se_sys_io_submit+0x10/0x10 [ 77.305022][ T5342] do_syscall_64+0xec/0xf80 [ 77.307369][ T5342] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.310373][ T5342] ? trace_irq_disable+0x37/0x100 [ 77.312909][ T5342] ? clear_bhb_loop+0x60/0xb0 [ 77.315054][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.317668][ T5342] RIP: 0033:0x7fae23f8f7c9 [ 77.319512][ T5342] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 77.328649][ T5342] RSP: 002b:00007fae24ee5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 77.332897][ T5342] RAX: ffffffffffffffda RBX: 00007fae241e5fa0 RCX: 00007fae23f8f7c9 [ 77.336346][ T5342] RDX: 0000200000001d00 RSI: 000000001ffffff0 RDI: 00007fae24e8b000 [ 77.340564][ T5342] RBP: 00007fae24013f91 R08: 0000000000000000 R09: 0000000000000000 [ 77.344332][ T5342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.347729][ T5342] R13: 00007fae241e6038 R14: 00007fae241e5fa0 R15: 00007fff5e252248 [ 77.351178][ T5342] [ 77.352890][ T5342] Kernel Offset: disabled [ 77.354827][ T5342] Rebooting in 86400 seconds..