program: syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x8c0, &(0x7f0000000080)=ANY=[@ANYBLOB='acl,heartbeat=none,dir_resv_level=00003,coherency=full,coherency=full,localflocks,coherency=full,noacl,\x00'/119], 0x1, 0x4421, &(0x7f0000004500)="$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symlink(&(0x7f0000000440)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000000)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00') r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpuset.effective_cpus\x00', 0x275a, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000140)={0x0, 0x18, 0xfa00, {0x0, 0x0}}, 0xffc9) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0) syz_mount_image$msdos(&(0x7f0000000f40), &(0x7f0000000f00)='.\x00', 0x1a4a438, &(0x7f0000000100)=ANY=[], 0xb, 0x0, &(0x7f0000000100)) r1 = syz_open_dev$loop(&(0x7f0000000640), 0x0, 0x22400) ioctl$LOOP_SET_STATUS(r1, 0x4c02, &(0x7f0000008940)={0x0, {}, 0x0, {}, 0x23, 0x5, 0x6, 0x0, "9e959f16deab7b08aa26e66c4056a516950600000000000000eef4fb0efcc1d8a6078ed9d5f8643902dd8f6fac274de9d940ffa51389ffffc685450d00002000", "f625c10e6e0080ffffffffffffffff7e904dc8df6aa3a893ec00347f41be6908", [0xa, 0x80000476]}) open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) [ 75.178271][ T4703] Bluetooth: hci0: command tx timeout [ 75.465590][ T5354] loop0: detected capacity change from 0 to 32768 [ 75.472834][ T5354] ======================================================= [ 75.472834][ T5354] WARNING: The mand mount option has been deprecated and [ 75.472834][ T5354] and is ignored by this kernel. Remove the mand [ 75.472834][ T5354] option from the mount to silence this warning. [ 75.472834][ T5354] ======================================================= [ 75.540784][ T5354] JBD2: Ignoring recovery information on journal [ 75.603943][ T5354] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 75.673331][ T5354] (syz.0.0,5354,0):ocfs2_check_set_options:1244 ERROR: Invalid heartbeat mount options [ 75.718504][ T5354] loop0: detected capacity change from 32768 to 32767 [ 75.741670][ T5355] OCFS2: ERROR (device loop0): int ocfs2_validate_dx_root(struct super_block *, struct buffer_head *): Dir Index Root # 23256869950717952 has bad signature [ 75.767463][ T5355] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 75.771102][ T5355] OCFS2: File system is now read-only. [ 75.773545][ T5355] (syz.0.0,5355,0):ocfs2_find_entry_dx:1037 ERROR: status = -30 [ 75.777100][ T5355] ================================================================== [ 75.780436][ T5355] BUG: KASAN: use-after-free in ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.783947][ T5355] Read of size 4 at addr ffff888053fc62c0 by task syz.0.0/5355 [ 75.787002][ T5355] [ 75.788037][ T5355] CPU: 0 UID: 0 PID: 5355 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.788057][ T5355] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.788066][ T5355] Call Trace: [ 75.788075][ T5355] [ 75.788083][ T5355] dump_stack_lvl+0x189/0x250 [ 75.788106][ T5355] ? __kasan_check_byte+0x12/0x40 [ 75.788125][ T5355] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.788141][ T5355] ? lock_release+0x4b/0x3e0 [ 75.788161][ T5355] ? __virt_addr_valid+0x4a5/0x5c0 [ 75.788177][ T5355] print_report+0xca/0x240 [ 75.788188][ T5355] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.788202][ T5355] kasan_report+0x118/0x150 [ 75.788217][ T5355] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.788238][ T5355] ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.788255][ T5355] ? __pfx_ocfs2_dx_dir_lookup_rec+0x10/0x10 [ 75.788278][ T5355] ? ocfs2_dx_dir_name_hash+0x229/0xaf0 [ 75.788296][ T5355] ? __asan_memcpy+0x40/0x70 [ 75.788309][ T5355] ? ocfs2_dx_dir_name_hash+0x9ba/0xaf0 [ 75.788325][ T5355] ocfs2_dx_dir_lookup+0xdb/0x520 [ 75.788340][ T5355] ? __pfx_ocfs2_dx_dir_lookup+0x10/0x10 [ 75.788352][ T5355] ? rcu_is_watching+0x15/0xb0 [ 75.788364][ T5355] ? ocfs2_buffer_cached+0x42a/0x8d0 [ 75.788382][ T5355] ocfs2_find_entry+0x1004/0x2000 [ 75.788397][ T5355] ? __pfx_ocfs2_validate_inode_block+0x10/0x10 [ 75.788408][ T5355] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 75.788419][ T5355] ? __pfx_ocfs2_read_blocks+0x10/0x10 [ 75.788432][ T5355] ? __lock_acquire+0xab9/0xd20 [ 75.788451][ T5355] ? ocfs2_read_inode_block+0x11d/0x190 [ 75.788460][ T5355] ? __pfx_ocfs2_read_inode_block+0x10/0x10 [ 75.788471][ T5355] ? do_raw_spin_unlock+0x4d/0x240 [ 75.788486][ T5355] ? ocfs2_inode_lock_full_nested+0xabe/0x1b40 [ 75.788504][ T5355] ? rcu_is_watching+0x15/0xb0 [ 75.788515][ T5355] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 75.788535][ T5355] ocfs2_check_dir_for_entry+0x14c/0x3f0 [ 75.788551][ T5355] ? __pfx_ocfs2_check_dir_for_entry+0x10/0x10 [ 75.788564][ T5355] ? kasan_save_free_info+0x46/0x50 [ 75.788582][ T5355] ocfs2_mknod+0x697/0x2050 [ 75.788602][ T5355] ? __pfx_ocfs2_mknod+0x10/0x10 [ 75.788616][ T5355] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 75.788629][ T5355] ? __lock_acquire+0xab9/0xd20 [ 75.788649][ T5355] ? look_up_lock_class+0x74/0x170 [ 75.788715][ T5355] ? register_lock_class+0x51/0x320 [ 75.788735][ T5355] ? __lock_acquire+0xab9/0xd20 [ 75.788753][ T5355] ? __lock_acquire+0xab9/0xd20 [ 75.788770][ T5355] ? do_raw_spin_lock+0x121/0x290 [ 75.788785][ T5355] ? do_raw_spin_unlock+0x4d/0x240 [ 75.788819][ T5355] ? rcu_is_watching+0x15/0xb0 [ 75.788832][ T5355] ? ocfs2_lookup+0x5b9/0x9b0 [ 75.788851][ T5355] ocfs2_create+0x1a5/0x440 [ 75.788871][ T5355] ? __pfx_ocfs2_lookup+0x10/0x10 [ 75.788885][ T5355] ? from_kgid+0x1b0/0x650 [ 75.788900][ T5355] ? __pfx_ocfs2_create+0x10/0x10 [ 75.788914][ T5355] ? HAS_UNMAPPED_ID+0x11a/0x180 [ 75.788931][ T5355] ? inode_permission+0x149/0x470 [ 75.788945][ T5355] ? __pfx_ocfs2_permission+0x10/0x10 [ 75.788959][ T5355] ? bpf_lsm_inode_create+0x9/0x20 [ 75.788977][ T5355] ? __pfx_ocfs2_create+0x10/0x10 [ 75.788992][ T5355] path_openat+0x14f1/0x3830 [ 75.789011][ T5355] ? __pfx_path_openat+0x10/0x10 [ 75.789021][ T5355] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.789037][ T5355] do_filp_open+0x1fa/0x410 [ 75.789048][ T5355] ? __lock_acquire+0xab9/0xd20 [ 75.789066][ T5355] ? __pfx_do_filp_open+0x10/0x10 [ 75.789084][ T5355] ? _raw_spin_unlock+0x28/0x50 [ 75.789101][ T5355] ? alloc_fd+0x64c/0x6c0 [ 75.789118][ T5355] do_sys_openat2+0x121/0x1c0 [ 75.789139][ T5355] ? __pfx_do_sys_openat2+0x10/0x10 [ 75.789155][ T5355] ? exc_page_fault+0x76/0xf0 [ 75.789170][ T5355] ? do_user_addr_fault+0xc8a/0x1390 [ 75.789182][ T5355] __x64_sys_open+0x11e/0x150 [ 75.789198][ T5355] do_syscall_64+0xfa/0x3b0 [ 75.789215][ T5355] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.789230][ T5355] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.789241][ T5355] ? clear_bhb_loop+0x60/0xb0 [ 75.789253][ T5355] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.789272][ T5355] RIP: 0033:0x7fc534b8ebe9 [ 75.789287][ T5355] 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 [ 75.789300][ T5355] RSP: 002b:00007fc535a3b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 75.789316][ T5355] RAX: ffffffffffffffda RBX: 00007fc534dc6090 RCX: 00007fc534b8ebe9 [ 75.789325][ T5355] RDX: 0000000000000000 RSI: 0000000000145142 RDI: 0000200000000240 [ 75.789334][ T5355] RBP: 00007fc534c11e19 R08: 0000000000000000 R09: 0000000000000000 [ 75.789341][ T5355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.789350][ T5355] R13: 00007fc534dc6128 R14: 00007fc534dc6090 R15: 00007ffced7d1fa8 [ 75.789362][ T5355] [ 75.789366][ T5355] [ 75.992561][ T5355] The buggy address belongs to the physical page: [ 75.995353][ T5355] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x53fc6 [ 75.998956][ T5355] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) [ 76.002091][ T5355] raw: 04fff00000000000 ffffea00014ff188 ffffea00014ff188 0000000000000000 [ 76.005856][ T5355] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 76.009398][ T5355] page dumped because: kasan: bad access detected [ 76.011960][ T5355] page_owner info is not present (never set?) [ 76.014266][ T5355] [ 76.015292][ T5355] Memory state around the buggy address: [ 76.017721][ T5355] ffff888053fc6180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 76.021183][ T5355] ffff888053fc6200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 76.024691][ T5355] >ffff888053fc6280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 76.028294][ T5355] ^ [ 76.031209][ T5355] ffff888053fc6300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 76.034725][ T5355] ffff888053fc6380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 76.037988][ T5355] ================================================================== [ 76.087018][ T5355] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 76.090263][ T5355] CPU: 0 UID: 0 PID: 5355 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.094130][ T5355] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.097988][ T5355] Call Trace: [ 76.099332][ T5355] [ 76.100621][ T5355] dump_stack_lvl+0x99/0x250 [ 76.102592][ T5355] ? __asan_memcpy+0x40/0x70 [ 76.104375][ T5355] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.106333][ T5355] ? __pfx__printk+0x10/0x10 [ 76.108355][ T5355] vpanic+0x281/0x750 [ 76.110213][ T5355] ? preempt_schedule+0xae/0xc0 [ 76.112468][ T5355] ? __pfx_vpanic+0x10/0x10 [ 76.114438][ T5355] ? preempt_schedule_common+0x83/0xd0 [ 76.116874][ T5355] ? preempt_schedule+0xae/0xc0 [ 76.118943][ T5355] ? __pfx_preempt_schedule+0x10/0x10 [ 76.121325][ T5355] panic+0xb9/0xc0 [ 76.123179][ T5355] ? __pfx_panic+0x10/0x10 [ 76.125072][ T5355] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 76.127512][ T5355] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 76.129805][ T5355] check_panic_on_warn+0x89/0xb0 [ 76.132015][ T5355] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 76.134392][ T5355] end_report+0x78/0x160 [ 76.136190][ T5355] kasan_report+0x129/0x150 [ 76.138028][ T5355] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 76.140194][ T5355] ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 76.142323][ T5355] ? __pfx_ocfs2_dx_dir_lookup_rec+0x10/0x10 [ 76.144922][ T5355] ? ocfs2_dx_dir_name_hash+0x229/0xaf0 [ 76.147109][ T5355] ? __asan_memcpy+0x40/0x70 [ 76.149090][ T5355] ? ocfs2_dx_dir_name_hash+0x9ba/0xaf0 [ 76.151467][ T5355] ocfs2_dx_dir_lookup+0xdb/0x520 [ 76.153729][ T5355] ? __pfx_ocfs2_dx_dir_lookup+0x10/0x10 [ 76.156147][ T5355] ? rcu_is_watching+0x15/0xb0 [ 76.158182][ T5355] ? ocfs2_buffer_cached+0x42a/0x8d0 [ 76.160421][ T5355] ocfs2_find_entry+0x1004/0x2000 [ 76.162316][ T5355] ? __pfx_ocfs2_validate_inode_block+0x10/0x10 [ 76.164948][ T5355] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 76.167161][ T5355] ? __pfx_ocfs2_read_blocks+0x10/0x10 [ 76.169440][ T5355] ? __lock_acquire+0xab9/0xd20 [ 76.171454][ T5355] ? ocfs2_read_inode_block+0x11d/0x190 [ 76.173869][ T5355] ? __pfx_ocfs2_read_inode_block+0x10/0x10 [ 76.176372][ T5355] ? do_raw_spin_unlock+0x4d/0x240 [ 76.178502][ T5355] ? ocfs2_inode_lock_full_nested+0xabe/0x1b40 [ 76.180930][ T5355] ? rcu_is_watching+0x15/0xb0 [ 76.183133][ T5355] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 76.186365][ T5355] ocfs2_check_dir_for_entry+0x14c/0x3f0 [ 76.189155][ T5355] ? __pfx_ocfs2_check_dir_for_entry+0x10/0x10 [ 76.191686][ T5355] ? kasan_save_free_info+0x46/0x50 [ 76.194057][ T5355] ocfs2_mknod+0x697/0x2050 [ 76.195886][ T5355] ? __pfx_ocfs2_mknod+0x10/0x10 [ 76.197817][ T5355] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 76.199882][ T5355] ? __lock_acquire+0xab9/0xd20 [ 76.201736][ T5355] ? look_up_lock_class+0x74/0x170 [ 76.203869][ T5355] ? register_lock_class+0x51/0x320 [ 76.206033][ T5355] ? __lock_acquire+0xab9/0xd20 [ 76.208142][ T5355] ? __lock_acquire+0xab9/0xd20 [ 76.210236][ T5355] ? do_raw_spin_lock+0x121/0x290 [ 76.212627][ T5355] ? do_raw_spin_unlock+0x4d/0x240 [ 76.214897][ T5355] ? rcu_is_watching+0x15/0xb0 [ 76.216871][ T5355] ? ocfs2_lookup+0x5b9/0x9b0 [ 76.218901][ T5355] ocfs2_create+0x1a5/0x440 [ 76.220834][ T5355] ? __pfx_ocfs2_lookup+0x10/0x10 [ 76.222998][ T5355] ? from_kgid+0x1b0/0x650 [ 76.224892][ T5355] ? __pfx_ocfs2_create+0x10/0x10 [ 76.226916][ T5355] ? HAS_UNMAPPED_ID+0x11a/0x180 [ 76.229170][ T5355] ? inode_permission+0x149/0x470 [ 76.231261][ T5355] ? __pfx_ocfs2_permission+0x10/0x10 [ 76.233585][ T5355] ? bpf_lsm_inode_create+0x9/0x20 [ 76.235754][ T5355] ? __pfx_ocfs2_create+0x10/0x10 [ 76.237907][ T5355] path_openat+0x14f1/0x3830 [ 76.239922][ T5355] ? __pfx_path_openat+0x10/0x10 [ 76.242050][ T5355] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.244584][ T5355] do_filp_open+0x1fa/0x410 [ 76.246482][ T5355] ? __lock_acquire+0xab9/0xd20 [ 76.248499][ T5355] ? __pfx_do_filp_open+0x10/0x10 [ 76.250854][ T5355] ? _raw_spin_unlock+0x28/0x50 [ 76.252995][ T5355] ? alloc_fd+0x64c/0x6c0 [ 76.254844][ T5355] do_sys_openat2+0x121/0x1c0 [ 76.256808][ T5355] ? __pfx_do_sys_openat2+0x10/0x10 [ 76.258966][ T5355] ? exc_page_fault+0x76/0xf0 [ 76.260992][ T5355] ? do_user_addr_fault+0xc8a/0x1390 [ 76.263181][ T5355] __x64_sys_open+0x11e/0x150 [ 76.265175][ T5355] do_syscall_64+0xfa/0x3b0 [ 76.267215][ T5355] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.269465][ T5355] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.272103][ T5355] ? clear_bhb_loop+0x60/0xb0 [ 76.274086][ T5355] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.276422][ T5355] RIP: 0033:0x7fc534b8ebe9 [ 76.278357][ T5355] 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 [ 76.286633][ T5355] RSP: 002b:00007fc535a3b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 76.289869][ T5355] RAX: ffffffffffffffda RBX: 00007fc534dc6090 RCX: 00007fc534b8ebe9 [ 76.293123][ T5355] RDX: 0000000000000000 RSI: 0000000000145142 RDI: 0000200000000240 [ 76.296433][ T5355] RBP: 00007fc534c11e19 R08: 0000000000000000 R09: 0000000000000000 [ 76.299754][ T5355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.303055][ T5355] R13: 00007fc534dc6128 R14: 00007fc534dc6090 R15: 00007ffced7d1fa8 [ 76.306167][ T5355] [ 76.307861][ T5355] Kernel Offset: disabled [ 76.309545][ T5355] Rebooting in 86400 seconds..