program: r0 = socket$netlink(0x10, 0x3, 0x10) bind$netlink(r0, &(0x7f0000514ff4)={0x10, 0x0, 0x0, 0x2ffffffff}, 0xc) (async) bind$netlink(r0, &(0x7f0000514ff4)={0x10, 0x0, 0x0, 0x2ffffffff}, 0xc) openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) (async) r1 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) syz_mount_image$ocfs2(&(0x7f00000026c0), &(0x7f0000004780)='./file0\x00', 0x200000, &(0x7f0000000340)=ANY=[@ANYBLOB="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"], 0x1, 0x4703, &(0x7f0000004800)="$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mknod$loop(&(0x7f0000000000)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0, 0x1) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) (async) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) (async) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000540)='pids.events\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000000), 0x208e24b) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0) (async) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0) madvise(&(0x7f0000268000/0x1000)=nil, 0x1000, 0x9) (async) madvise(&(0x7f0000268000/0x1000)=nil, 0x1000, 0x9) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r1, 0x4018620d, &(0x7f0000000100)) r3 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000140)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_WRITE_READ(r3, 0xc0306201, &(0x7f0000000080)={0x8, 0x0, &(0x7f0000000400)=[@increfs], 0x0, 0x0, 0x0}) r4 = dup3(r1, r1, 0x0) openat$binderfs(0xffffffffffffff9c, &(0x7f0000000040)='./binderfs/binder0\x00', 0x0, 0x0) (async) r5 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000040)='./binderfs/binder0\x00', 0x0, 0x0) mmap$binder(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x1, 0x11, r5, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r5, 0x4018620d, &(0x7f0000004a80)={0x73622a85, 0x100, 0x1}) ioctl$BINDER_WRITE_READ(r4, 0xc0306201, &(0x7f00000004c0)={0x8, 0x0, &(0x7f0000000000)=[@acquire], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(r4, 0xc0306201, &(0x7f00000001c0)={0x4c, 0x0, &(0x7f0000000bc0)=[@transaction_sg={0x40486311, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(r5, 0xc0306201, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x50, 0x0, &(0x7f0000000580)="b3185d7bb56f70f003360fa8bf71ac3086aedebf6fff904f92849a7a07395ee7f0e4cb1d78001c08a0ab73ffcf5ad07693727980eea946e6cba1723e81bfa5c3688803c8a124dcb27df7938e7ddfdd52"}) ioctl$BINDER_WRITE_READ(r5, 0xc0306201, &(0x7f0000004a40)={0x44, 0x0, &(0x7f00000049c0)=[@transaction={0x40406301, {0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}], 0x0, 0x0, 0x0}) r6 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r6, &(0x7f0000001b40)={0x0, 0x0, &(0x7f00000008c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="240000002000010000000000000000000a0000000000000012000100080003"], 0x24}}, 0x0) (async) sendmsg$nl_route(r6, &(0x7f0000001b40)={0x0, 0x0, &(0x7f00000008c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="240000002000010000000000000000000a0000000000000012000100080003"], 0x24}}, 0x0) openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/keys\x00', 0x0, 0x0) (async) r7 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/keys\x00', 0x0, 0x0) preadv(r7, &(0x7f0000000140)=[{&(0x7f0000000040)=""/207, 0xcf}], 0x1, 0x1, 0x2) r8 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r8, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB="3400100010000001000000000000000000000000d83da5c4886f0192ba6e7872f6eef2454ed85a47c8a2c72088f56a0ea8a48590dc96e174ba83b9ec45235218ba0250396a8314177d82d6023c7f28a7e4490d5b50b1", @ANYRES32=0x0, @ANYBLOB="0000000000000000000012800b00010067656e657665000004000280"], 0x34}}, 0x8010) [ 74.860002][ T4662] Bluetooth: hci0: command tx timeout [ 75.311187][ T5313] loop0: detected capacity change from 0 to 32768 [ 75.385611][ T5313] (syz.0.0,5313,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 75.413628][ T5313] (syz.0.0,5313,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 75.458527][ T5313] JBD2: Ignoring recovery information on journal [ 75.523620][ T5313] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 76.547519][ T5314] ================================================================== [ 76.551290][ T5314] BUG: KASAN: slab-use-after-free in ocfs2_fault+0xdb/0x440 [ 76.554810][ T5314] Read of size 8 at addr ffff888041500058 by task syz.0.0/5314 [ 76.558757][ T5314] [ 76.559814][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.559827][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 76.559835][ T5314] Call Trace: [ 76.559841][ T5314] [ 76.559847][ T5314] dump_stack_lvl+0xe8/0x150 [ 76.559867][ T5314] print_report+0xba/0x230 [ 76.559880][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.559892][ T5314] kasan_report+0x117/0x150 [ 76.559908][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.559921][ T5314] ocfs2_fault+0xdb/0x440 [ 76.559932][ T5314] ? __pfx_ocfs2_fault+0x10/0x10 [ 76.559943][ T5314] ? css_rstat_updated+0x23a/0x530 [ 76.559956][ T5314] __do_fault+0x138/0x390 [ 76.559972][ T5314] do_pte_missing+0x228f/0x3750 [ 76.559989][ T5314] ? handle_mm_fault+0xee/0x3310 [ 76.560005][ T5314] handle_mm_fault+0x1bec/0x3310 [ 76.560020][ T5314] ? handle_mm_fault+0xee/0x3310 [ 76.560059][ T5314] ? __pfx_handle_mm_fault+0x10/0x10 [ 76.560071][ T5314] ? follow_page_pte+0x841/0x1450 [ 76.560086][ T5314] ? __pfx_follow_page_pte+0x10/0x10 [ 76.560101][ T5314] __get_user_pages+0x165b/0x29d0 [ 76.560119][ T5314] populate_vma_page_range+0x2be/0x3c0 [ 76.560131][ T5314] ? __pfx_populate_vma_page_range+0x10/0x10 [ 76.560142][ T5314] ? down_read+0x272/0x2e0 [ 76.560197][ T5314] ? __mm_populate+0x173/0x390 [ 76.560210][ T5314] __mm_populate+0x25f/0x390 [ 76.560221][ T5314] ? __pfx___mm_populate+0x10/0x10 [ 76.560234][ T5314] vm_mmap_pgoff+0x3aa/0x4f0 [ 76.560248][ T5314] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 76.560258][ T5314] ? __fget_files+0x2a/0x420 [ 76.560270][ T5314] ? __fget_files+0x3a0/0x420 [ 76.560279][ T5314] ? __fget_files+0x2a/0x420 [ 76.560290][ T5314] ksys_mmap_pgoff+0x51e/0x760 [ 76.560304][ T5314] do_syscall_64+0x14d/0xf80 [ 76.560317][ T5314] ? trace_irq_disable+0x3b/0x150 [ 76.560338][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.560350][ T5314] ? clear_bhb_loop+0x40/0x90 [ 76.560363][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.560374][ T5314] RIP: 0033:0x7f01e279bf79 [ 76.560387][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 76.560396][ T5314] RSP: 002b:00007f01e3718028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 76.560442][ T5314] RAX: ffffffffffffffda RBX: 00007f01e2a16090 RCX: 00007f01e279bf79 [ 76.560450][ T5314] RDX: 0000000000000002 RSI: 0000000000b36000 RDI: 0000200000000000 [ 76.560457][ T5314] RBP: 00007f01e28327e0 R08: 0000000000000007 R09: 0000000000000000 [ 76.560464][ T5314] R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 [ 76.560470][ T5314] R13: 00007f01e2a16128 R14: 00007f01e2a16090 R15: 00007ffce53465c8 [ 76.560481][ T5314] [ 76.560485][ T5314] [ 76.674133][ T5314] Allocated by task 5314: [ 76.675955][ T5314] kasan_save_track+0x3e/0x80 [ 76.678530][ T5314] __kasan_slab_alloc+0x6c/0x80 [ 76.680716][ T5314] kmem_cache_alloc_noprof+0x2bc/0x650 [ 76.683083][ T5314] vm_area_alloc+0x24/0x140 [ 76.685119][ T5314] mmap_region+0xf90/0x1f50 [ 76.687135][ T5314] do_mmap+0xc39/0x10c0 [ 76.688921][ T5314] vm_mmap_pgoff+0x2c9/0x4f0 [ 76.690918][ T5314] ksys_mmap_pgoff+0x51e/0x760 [ 76.693004][ T5314] do_syscall_64+0x14d/0xf80 [ 76.695009][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.697729][ T5314] [ 76.698809][ T5314] Freed by task 43: [ 76.700500][ T5314] kasan_save_track+0x3e/0x80 [ 76.702525][ T5314] kasan_save_free_info+0x46/0x50 [ 76.704617][ T5314] __kasan_slab_free+0x5c/0x80 [ 76.706761][ T5314] slab_free_after_rcu_debug+0x126/0x220 [ 76.709291][ T5314] rcu_core+0x7cd/0x1070 [ 76.711107][ T5314] handle_softirqs+0x22a/0x870 [ 76.713222][ T5314] __irq_exit_rcu+0x5f/0x150 [ 76.715323][ T5314] irq_exit_rcu+0x9/0x30 [ 76.717211][ T5314] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 76.719684][ T5314] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.722170][ T5314] [ 76.723239][ T5314] Last potentially related work creation: [ 76.725629][ T5314] kasan_save_stack+0x3e/0x60 [ 76.727714][ T5314] kasan_record_aux_stack+0xbd/0xd0 [ 76.729965][ T5314] kmem_cache_free+0x426/0x630 [ 76.732076][ T5314] vms_complete_munmap_vmas+0x625/0x890 [ 76.734470][ T5314] __mmap_complete+0x7b/0x5e0 [ 76.736528][ T5314] mmap_region+0x1430/0x1f50 [ 76.738601][ T5314] do_mmap+0xc39/0x10c0 [ 76.740401][ T5314] vm_mmap_pgoff+0x2c9/0x4f0 [ 76.742568][ T5314] ksys_mmap_pgoff+0x51e/0x760 [ 76.744712][ T5314] do_syscall_64+0x14d/0xf80 [ 76.746761][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.749409][ T5314] [ 76.750430][ T5314] The buggy address belongs to the object at ffff888041500000 [ 76.750430][ T5314] which belongs to the cache vm_area_struct of size 256 [ 76.756266][ T5314] The buggy address is located 88 bytes inside of [ 76.756266][ T5314] freed 256-byte region [ffff888041500000, ffff888041500100) [ 76.761852][ T5314] [ 76.762900][ T5314] The buggy address belongs to the physical page: [ 76.765636][ T5314] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888041500dc0 pfn:0x41500 [ 76.769891][ T5314] memcg:ffff888037847681 [ 76.771748][ T5314] flags: 0x4fff00000000200(workingset|node=1|zone=1|lastcpupid=0x7ff) [ 76.774592][ T5314] page_type: f5(slab) [ 76.775973][ T5314] raw: 04fff00000000200 ffff88801be9e780 ffff888030408dc8 ffffea0001107f10 [ 76.779390][ T5314] raw: ffff888041500dc0 00000008000c0009 00000000f5000000 ffff888037847681 [ 76.782860][ T5314] page dumped because: kasan: bad access detected [ 76.785602][ T5314] page_owner tracks the page as allocated [ 76.788401][ T5314] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4991, tgid 4991 (dbus-daemon), ts 45978677829, free_ts 45975288314 [ 76.797234][ T5314] post_alloc_hook+0x231/0x280 [ 76.799311][ T5314] get_page_from_freelist+0x24dc/0x2580 [ 76.801694][ T5314] __alloc_frozen_pages_noprof+0x18d/0x380 [ 76.804251][ T5314] allocate_slab+0x77/0x660 [ 76.806189][ T5314] refill_objects+0x331/0x3c0 [ 76.808372][ T5314] __pcs_replace_empty_main+0x2b9/0x620 [ 76.810959][ T5314] kmem_cache_alloc_noprof+0x37d/0x650 [ 76.813322][ T5314] vm_area_dup+0x2b/0x680 [ 76.815174][ T5314] __split_vma+0x1dc/0xa40 [ 76.817104][ T5314] vms_gather_munmap_vmas+0x32d/0x1370 [ 76.819194][ T5314] mmap_region+0x838/0x1f50 [ 76.821120][ T5314] do_mmap+0xc39/0x10c0 [ 76.822909][ T5314] vm_mmap_pgoff+0x2c9/0x4f0 [ 76.824996][ T5314] ksys_mmap_pgoff+0x51e/0x760 [ 76.827416][ T5314] do_syscall_64+0x14d/0xf80 [ 76.829436][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.831940][ T5314] page last free pid 15 tgid 15 stack trace: [ 76.834503][ T5314] __free_frozen_pages+0xc00/0xd90 [ 76.836611][ T5314] rcu_core+0x7cd/0x1070 [ 76.838393][ T5314] handle_softirqs+0x22a/0x870 [ 76.840511][ T5314] run_ksoftirqd+0x36/0x60 [ 76.842359][ T5314] smpboot_thread_fn+0x541/0xa50 [ 76.844501][ T5314] kthread+0x388/0x470 [ 76.846277][ T5314] ret_from_fork+0x51e/0xb90 [ 76.849436][ T5314] ret_from_fork_asm+0x1a/0x30 [ 76.851358][ T5314] [ 76.852328][ T5314] Memory state around the buggy address: [ 76.854585][ T5314] ffff8880414fff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 76.857783][ T5314] ffff8880414fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 76.861251][ T5314] >ffff888041500000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.864703][ T5314] ^ [ 76.867327][ T5314] ffff888041500080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.870535][ T5314] ffff888041500100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 76.873886][ T5314] ================================================================== [ 76.877927][ T5314] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 76.880937][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.884275][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 76.888661][ T5314] Call Trace: [ 76.890306][ T5314] [ 76.891726][ T5314] vpanic+0x56c/0xa60 [ 76.893462][ T5314] ? __pfx_vpanic+0x10/0x10 [ 76.895152][ T5314] panic+0xc5/0xd0 [ 76.896642][ T5314] ? __pfx_panic+0x10/0x10 [ 76.898546][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.900510][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.902402][ T5314] check_panic_on_warn+0x89/0xb0 [ 76.904181][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.905914][ T5314] end_report+0x73/0x180 [ 76.907639][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.909594][ T5314] kasan_report+0x128/0x150 [ 76.911542][ T5314] ? ocfs2_fault+0xdb/0x440 [ 76.913549][ T5314] ocfs2_fault+0xdb/0x440 [ 76.915522][ T5314] ? __pfx_ocfs2_fault+0x10/0x10 [ 76.918118][ T5314] ? css_rstat_updated+0x23a/0x530 [ 76.920595][ T5314] __do_fault+0x138/0x390 [ 76.922841][ T5314] do_pte_missing+0x228f/0x3750 [ 76.925316][ T5314] ? handle_mm_fault+0xee/0x3310 [ 76.927516][ T5314] handle_mm_fault+0x1bec/0x3310 [ 76.929600][ T5314] ? handle_mm_fault+0xee/0x3310 [ 76.931832][ T5314] ? __pfx_handle_mm_fault+0x10/0x10 [ 76.934190][ T5314] ? follow_page_pte+0x841/0x1450 [ 76.936427][ T5314] ? __pfx_follow_page_pte+0x10/0x10 [ 76.938753][ T5314] __get_user_pages+0x165b/0x29d0 [ 76.940919][ T5314] populate_vma_page_range+0x2be/0x3c0 [ 76.943396][ T5314] ? __pfx_populate_vma_page_range+0x10/0x10 [ 76.946065][ T5314] ? down_read+0x272/0x2e0 [ 76.948307][ T5314] ? __mm_populate+0x173/0x390 [ 76.950452][ T5314] __mm_populate+0x25f/0x390 [ 76.952569][ T5314] ? __pfx___mm_populate+0x10/0x10 [ 76.954797][ T5314] vm_mmap_pgoff+0x3aa/0x4f0 [ 76.956820][ T5314] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 76.959117][ T5314] ? __fget_files+0x2a/0x420 [ 76.961204][ T5314] ? __fget_files+0x3a0/0x420 [ 76.963315][ T5314] ? __fget_files+0x2a/0x420 [ 76.965360][ T5314] ksys_mmap_pgoff+0x51e/0x760 [ 76.967528][ T5314] do_syscall_64+0x14d/0xf80 [ 76.969451][ T5314] ? trace_irq_disable+0x3b/0x150 [ 76.971874][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.974747][ T5314] ? clear_bhb_loop+0x40/0x90 [ 76.976685][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.978975][ T5314] RIP: 0033:0x7f01e279bf79 [ 76.980763][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 76.988596][ T5314] RSP: 002b:00007f01e3718028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 76.992102][ T5314] RAX: ffffffffffffffda RBX: 00007f01e2a16090 RCX: 00007f01e279bf79 [ 76.995459][ T5314] RDX: 0000000000000002 RSI: 0000000000b36000 RDI: 0000200000000000 [ 76.998816][ T5314] RBP: 00007f01e28327e0 R08: 0000000000000007 R09: 0000000000000000 [ 77.002638][ T5314] R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 [ 77.006072][ T5314] R13: 00007f01e2a16128 R14: 00007f01e2a16090 R15: 00007ffce53465c8 [ 77.009537][ T5314] [ 77.011304][ T5314] Kernel Offset: disabled [ 77.013182][ T5314] Rebooting in 86400 seconds..