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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVXYgWMBAAAAAGH+1lH0bQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPArAAD//z8QH1I=") 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, &(0x7f00000000c0)={0x0, {}, 0x0, {}, 0x1, 0x9, 0x9, 0x11, "9e959f16deab7b08aa26e66c4056a516950600000000000000eef4fb0efcc1d8a6078ed98e5e6bd5f8643902dd8f6fac274de9d940ffa5e592bbd48685450d00", "f625c10e6e4c36c800dee96015e0fb7e904dc8df62a3a893ec00347f41be5a08", [0x6, 0x9]}) openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1ff) r2 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x10) write$cgroup_int(r2, &(0x7f0000000000)=0x2b00, 0x12) [ 74.851145][ T5298] Bluetooth: hci0: command tx timeout [ 75.173324][ T5319] loop0: detected capacity change from 0 to 32768 [ 75.198581][ T5319] ======================================================= [ 75.198581][ T5319] WARNING: The mand mount option has been deprecated and [ 75.198581][ T5319] and is ignored by this kernel. Remove the mand [ 75.198581][ T5319] option from the mount to silence this warning. [ 75.198581][ T5319] ======================================================= [ 75.264541][ T5319] JBD2: Ignoring recovery information on journal [ 75.313732][ T5319] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 75.370883][ T5319] (syz.0.0,5319,0):ocfs2_check_set_options:1244 ERROR: Invalid heartbeat mount options [ 75.406514][ T5319] loop0: detected capacity change from 32768 to 32767 [ 75.420284][ T5319] OCFS2: ERROR (device loop0): int ocfs2_validate_dx_root(struct super_block *, struct buffer_head *): Dir Index Root # 74 has bad signature XDIR01 [ 75.438479][ T5319] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 75.442386][ T5319] OCFS2: File system is now read-only. [ 75.444740][ T5319] (syz.0.0,5319,0):ocfs2_find_entry_dx:1037 ERROR: status = -30 [ 75.461115][ T5319] (syz.0.0,5319,0):ocfs2_read_blocks:239 ERROR: status = -12 [ 75.486852][ T5319] (syz.0.0,5319,0):ocfs2_dx_dir_search:940 ERROR: status = -12 [ 75.492197][ T5319] (syz.0.0,5319,0):ocfs2_find_entry_dx:1045 ERROR: status = -12 [ 75.495354][ T5319] (syz.0.0,5319,0):ocfs2_mknod:505 ERROR: status = -12 [ 75.502750][ T5319] (syz.0.0,5319,0):ocfs2_create:678 ERROR: status = -12 [ 75.513654][ T5320] ================================================================== [ 75.517214][ T5320] BUG: KASAN: use-after-free in ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.520777][ T5320] Read of size 4 at addr ffff888052d092c0 by task syz.0.0/5320 [ 75.524888][ T5320] [ 75.526028][ T5320] CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.526063][ T5320] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.526073][ T5320] Call Trace: [ 75.526080][ T5320] [ 75.526087][ T5320] dump_stack_lvl+0x189/0x250 [ 75.526108][ T5320] ? __kasan_check_byte+0x12/0x40 [ 75.526124][ T5320] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.526139][ T5320] ? lock_release+0x4b/0x3e0 [ 75.526151][ T5320] ? __virt_addr_valid+0x4a5/0x5c0 [ 75.526166][ T5320] print_report+0xca/0x240 [ 75.526179][ T5320] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.526191][ T5320] kasan_report+0x118/0x150 [ 75.526206][ T5320] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.526220][ T5320] ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.526235][ T5320] ? __pfx_ocfs2_dx_dir_lookup_rec+0x10/0x10 [ 75.526247][ T5320] ? ocfs2_dx_dir_name_hash+0x229/0xaf0 [ 75.526259][ T5320] ? __asan_memcpy+0x40/0x70 [ 75.526271][ T5320] ? ocfs2_dx_dir_name_hash+0x9ba/0xaf0 [ 75.526282][ T5320] ocfs2_dx_dir_lookup+0xdb/0x520 [ 75.526297][ T5320] ? __pfx_ocfs2_dx_dir_lookup+0x10/0x10 [ 75.526310][ T5320] ocfs2_find_entry+0x1004/0x2000 [ 75.526321][ T5320] ? __bfs+0x154/0x2a0 [ 75.526334][ T5320] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 75.526346][ T5320] ? __lock_acquire+0xab9/0xd20 [ 75.526360][ T5320] ? do_raw_spin_unlock+0x4d/0x240 [ 75.526373][ T5320] ? _raw_spin_unlock+0x28/0x50 [ 75.526428][ T5320] ? ocfs2_inode_lock_full_nested+0xabe/0x1b40 [ 75.526449][ T5320] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 75.526465][ T5320] ? seqcount_lockdep_reader_access+0x122/0x1c0 [ 75.526484][ T5320] ocfs2_find_files_on_disk+0xef/0x340 [ 75.526498][ T5320] ocfs2_lookup_ino_from_name+0x52/0x100 [ 75.526512][ T5320] ocfs2_lookup+0x255/0x9b0 [ 75.526527][ T5320] ? __pfx_ocfs2_lookup+0x10/0x10 [ 75.526541][ T5320] ? __raw_spin_lock_init+0x45/0x100 [ 75.526555][ T5320] ? __init_waitqueue_head+0xa9/0x150 [ 75.526569][ T5320] __lookup_slow+0x297/0x3d0 [ 75.526580][ T5320] ? __pfx___lookup_slow+0x10/0x10 [ 75.526591][ T5320] ? bpf_lsm_inode_permission+0x9/0x20 [ 75.526605][ T5320] ? security_inode_permission+0xb7/0x310 [ 75.526623][ T5320] ? down_read+0x1ad/0x2e0 [ 75.526636][ T5320] lookup_slow+0x53/0x70 [ 75.526647][ T5320] walk_component+0x2d2/0x400 [ 75.526662][ T5320] ? path_lookupat+0x156/0x430 [ 75.526672][ T5320] path_lookupat+0x163/0x430 [ 75.526691][ T5320] filename_lookup+0x212/0x570 [ 75.526703][ T5320] ? __pfx_filename_lookup+0x10/0x10 [ 75.526718][ T5320] ? kmem_cache_alloc_noprof+0x3b8/0x6e0 [ 75.526730][ T5320] ? getname_kernel+0x146/0x2f0 [ 75.526745][ T5320] ? getname_kernel+0x20e/0x2f0 [ 75.526760][ T5320] kern_path+0x35/0x50 [ 75.526770][ T5320] lookup_bdev+0xc0/0x280 [ 75.526784][ T5320] ? trace_kmalloc+0x1f/0xd0 [ 75.526794][ T5320] ? __pfx_lookup_bdev+0x10/0x10 [ 75.526806][ T5320] ? kstrndup+0xbf/0x160 [ 75.526817][ T5320] resume_store+0x169/0x460 [ 75.526830][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 75.526845][ T5320] ? __pfx_resume_store+0x10/0x10 [ 75.526858][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 75.526871][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 75.526884][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 75.526898][ T5320] ? sysfs_file_kobj+0x1e4/0x230 [ 75.526913][ T5320] ? sysfs_kf_write+0x166/0x260 [ 75.526922][ T5320] ? __pfx_sysfs_kf_write+0x10/0x10 [ 75.526930][ T5320] kernfs_fop_write_iter+0x3af/0x540 [ 75.526944][ T5320] vfs_write+0x5c9/0xb30 [ 75.526958][ T5320] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 75.526971][ T5320] ? __pfx_vfs_write+0x10/0x10 [ 75.526985][ T5320] ? __fget_files+0x2a/0x420 [ 75.527000][ T5320] ksys_write+0x145/0x250 [ 75.527013][ T5320] ? __pfx_ksys_write+0x10/0x10 [ 75.527026][ T5320] ? do_syscall_64+0xbe/0xfa0 [ 75.527040][ T5320] do_syscall_64+0xfa/0xfa0 [ 75.527052][ T5320] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.527065][ T5320] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.527075][ T5320] ? clear_bhb_loop+0x60/0xb0 [ 75.527087][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.527098][ T5320] RIP: 0033:0x7f5198d8efc9 [ 75.527110][ T5320] 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 [ 75.527119][ T5320] RSP: 002b:00007f5199c1d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 75.527131][ T5320] RAX: ffffffffffffffda RBX: 00007f5198fe6090 RCX: 00007f5198d8efc9 [ 75.527139][ T5320] RDX: 0000000000000012 RSI: 0000200000000000 RDI: 0000000000000008 [ 75.527146][ T5320] RBP: 00007f5198e11f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.527154][ T5320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.527161][ T5320] R13: 00007f5198fe6128 R14: 00007f5198fe6090 R15: 00007fffa2534918 [ 75.527174][ T5320] [ 75.527177][ T5320] [ 75.721746][ T5320] The buggy address belongs to the physical page: [ 75.724269][ T5320] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x7fbd1c9c5 pfn:0x52d09 [ 75.728163][ T5320] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) [ 75.731301][ T5320] raw: 04fff00000000000 ffffea00014b4ac8 ffffea00014b4208 0000000000000000 [ 75.734987][ T5320] raw: 00000007fbd1c9c5 0000000000000000 00000000ffffffff 0000000000000000 [ 75.738329][ T5320] page dumped because: kasan: bad access detected [ 75.741074][ T5320] page_owner tracks the page as freed [ 75.743476][ T5320] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO|__GFP_COMP), pid 5296, tgid 5296 (udevd), ts 75437023725, free_ts 75501876878 [ 75.751326][ T5320] post_alloc_hook+0x240/0x2a0 [ 75.753407][ T5320] get_page_from_freelist+0x2365/0x2440 [ 75.755788][ T5320] __alloc_frozen_pages_noprof+0x181/0x370 [ 75.758411][ T5320] alloc_pages_mpol+0x232/0x4a0 [ 75.760378][ T5320] vma_alloc_folio_noprof+0xe4/0x200 [ 75.763179][ T5320] folio_prealloc+0x30/0x180 [ 75.765408][ T5320] __handle_mm_fault+0x2a8b/0x5400 [ 75.767604][ T5320] handle_mm_fault+0x40a/0x8e0 [ 75.769624][ T5320] do_user_addr_fault+0x764/0x1380 [ 75.771972][ T5320] exc_page_fault+0x82/0x100 [ 75.774021][ T5320] asm_exc_page_fault+0x26/0x30 [ 75.776212][ T5320] page last free pid 5296 tgid 5296 stack trace: [ 75.778879][ T5320] free_unref_folios+0xdb3/0x14f0 [ 75.780994][ T5320] folios_put_refs+0x584/0x670 [ 75.783145][ T5320] free_pages_and_swap_cache+0x4be/0x520 [ 75.785683][ T5320] tlb_flush_mmu+0x3a0/0x680 [ 75.787826][ T5320] tlb_finish_mmu+0xc3/0x1d0 [ 75.789948][ T5320] vms_clear_ptes+0x42c/0x540 [ 75.792059][ T5320] vms_complete_munmap_vmas+0x206/0x8a0 [ 75.794481][ T5320] do_vmi_align_munmap+0x364/0x440 [ 75.796315][ T5320] do_vmi_munmap+0x253/0x2e0 [ 75.798172][ T5320] __vm_munmap+0x207/0x380 [ 75.800201][ T5320] __x64_sys_munmap+0x60/0x70 [ 75.802196][ T5320] do_syscall_64+0xfa/0xfa0 [ 75.804089][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.806776][ T5320] [ 75.807879][ T5320] Memory state around the buggy address: [ 75.810179][ T5320] ffff888052d09180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 75.813713][ T5320] ffff888052d09200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 75.817266][ T5320] >ffff888052d09280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 75.820689][ T5320] ^ [ 75.823334][ T5320] ffff888052d09300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 75.826301][ T5320] ffff888052d09380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 75.829405][ T5320] ================================================================== [ 75.858686][ T5320] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 75.861427][ T5320] CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.865107][ T5320] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.869685][ T5320] Call Trace: [ 75.871139][ T5320] [ 75.872364][ T5320] dump_stack_lvl+0x99/0x250 [ 75.874519][ T5320] ? __asan_memcpy+0x40/0x70 [ 75.876515][ T5320] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.878985][ T5320] ? __pfx__printk+0x10/0x10 [ 75.881065][ T5320] vpanic+0x237/0x6d0 [ 75.882794][ T5320] ? __pfx_vpanic+0x10/0x10 [ 75.884600][ T5320] ? preempt_schedule+0xae/0xc0 [ 75.886357][ T5320] ? __pfx_preempt_schedule+0x10/0x10 [ 75.888318][ T5320] panic+0xb9/0xc0 [ 75.889753][ T5320] ? __pfx_panic+0x10/0x10 [ 75.891656][ T5320] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 75.893981][ T5320] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.896939][ T5320] check_panic_on_warn+0x89/0xb0 [ 75.899268][ T5320] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.901372][ T5320] end_report+0x78/0x160 [ 75.903028][ T5320] kasan_report+0x129/0x150 [ 75.904870][ T5320] ? ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.907094][ T5320] ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 [ 75.909289][ T5320] ? __pfx_ocfs2_dx_dir_lookup_rec+0x10/0x10 [ 75.911801][ T5320] ? ocfs2_dx_dir_name_hash+0x229/0xaf0 [ 75.914027][ T5320] ? __asan_memcpy+0x40/0x70 [ 75.916015][ T5320] ? ocfs2_dx_dir_name_hash+0x9ba/0xaf0 [ 75.918204][ T5320] ocfs2_dx_dir_lookup+0xdb/0x520 [ 75.920429][ T5320] ? __pfx_ocfs2_dx_dir_lookup+0x10/0x10 [ 75.922802][ T5320] ocfs2_find_entry+0x1004/0x2000 [ 75.924978][ T5320] ? __bfs+0x154/0x2a0 [ 75.926717][ T5320] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 75.929061][ T5320] ? __lock_acquire+0xab9/0xd20 [ 75.931010][ T5320] ? do_raw_spin_unlock+0x4d/0x240 [ 75.933068][ T5320] ? _raw_spin_unlock+0x28/0x50 [ 75.935127][ T5320] ? ocfs2_inode_lock_full_nested+0xabe/0x1b40 [ 75.937667][ T5320] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 75.940328][ T5320] ? seqcount_lockdep_reader_access+0x122/0x1c0 [ 75.943006][ T5320] ocfs2_find_files_on_disk+0xef/0x340 [ 75.945300][ T5320] ocfs2_lookup_ino_from_name+0x52/0x100 [ 75.947702][ T5320] ocfs2_lookup+0x255/0x9b0 [ 75.949648][ T5320] ? __pfx_ocfs2_lookup+0x10/0x10 [ 75.951825][ T5320] ? __raw_spin_lock_init+0x45/0x100 [ 75.953874][ T5320] ? __init_waitqueue_head+0xa9/0x150 [ 75.955870][ T5320] __lookup_slow+0x297/0x3d0 [ 75.957824][ T5320] ? __pfx___lookup_slow+0x10/0x10 [ 75.959773][ T5320] ? bpf_lsm_inode_permission+0x9/0x20 [ 75.961694][ T5320] ? security_inode_permission+0xb7/0x310 [ 75.963923][ T5320] ? down_read+0x1ad/0x2e0 [ 75.965693][ T5320] lookup_slow+0x53/0x70 [ 75.967616][ T5320] walk_component+0x2d2/0x400 [ 75.969840][ T5320] ? path_lookupat+0x156/0x430 [ 75.972028][ T5320] path_lookupat+0x163/0x430 [ 75.974163][ T5320] filename_lookup+0x212/0x570 [ 75.976359][ T5320] ? __pfx_filename_lookup+0x10/0x10 [ 75.978770][ T5320] ? kmem_cache_alloc_noprof+0x3b8/0x6e0 [ 75.981260][ T5320] ? getname_kernel+0x146/0x2f0 [ 75.983486][ T5320] ? getname_kernel+0x20e/0x2f0 [ 75.985642][ T5320] kern_path+0x35/0x50 [ 75.987517][ T5320] lookup_bdev+0xc0/0x280 [ 75.989314][ T5320] ? trace_kmalloc+0x1f/0xd0 [ 75.991237][ T5320] ? __pfx_lookup_bdev+0x10/0x10 [ 75.993325][ T5320] ? kstrndup+0xbf/0x160 [ 75.995249][ T5320] resume_store+0x169/0x460 [ 75.997328][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 75.999472][ T5320] ? __pfx_resume_store+0x10/0x10 [ 76.001712][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 76.003947][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 76.006099][ T5320] ? sysfs_file_kobj+0x1a/0x230 [ 76.008125][ T5320] ? sysfs_file_kobj+0x1e4/0x230 [ 76.010327][ T5320] ? sysfs_kf_write+0x166/0x260 [ 76.012366][ T5320] ? __pfx_sysfs_kf_write+0x10/0x10 [ 76.014668][ T5320] kernfs_fop_write_iter+0x3af/0x540 [ 76.016967][ T5320] vfs_write+0x5c9/0xb30 [ 76.018922][ T5320] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 76.021450][ T5320] ? __pfx_vfs_write+0x10/0x10 [ 76.023553][ T5320] ? __fget_files+0x2a/0x420 [ 76.025507][ T5320] ksys_write+0x145/0x250 [ 76.027463][ T5320] ? __pfx_ksys_write+0x10/0x10 [ 76.029589][ T5320] ? do_syscall_64+0xbe/0xfa0 [ 76.031618][ T5320] do_syscall_64+0xfa/0xfa0 [ 76.033875][ T5320] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.036496][ T5320] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.040010][ T5320] ? clear_bhb_loop+0x60/0xb0 [ 76.042736][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.046014][ T5320] RIP: 0033:0x7f5198d8efc9 [ 76.048575][ T5320] 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 [ 76.059164][ T5320] RSP: 002b:00007f5199c1d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.062719][ T5320] RAX: ffffffffffffffda RBX: 00007f5198fe6090 RCX: 00007f5198d8efc9 [ 76.066019][ T5320] RDX: 0000000000000012 RSI: 0000200000000000 RDI: 0000000000000008 [ 76.069329][ T5320] RBP: 00007f5198e11f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.072544][ T5320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.075742][ T5320] R13: 00007f5198fe6128 R14: 00007f5198fe6090 R15: 00007fffa2534918 [ 76.078943][ T5320] [ 76.080411][ T5320] Kernel Offset: disabled [ 76.082376][ T5320] Rebooting in 86400 seconds..