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kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 17125 Comm: syz.3.2710 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 e3 b2 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 ed 2f cf 07 e8 28 11 0d fe 90 <0f> 0b e8 20 11 0d fe 90 0f 0b e8 18 11 0d fe 90 0f 0b e8 10 11 0d
RSP: 0018:ffffc9000600da88 EFLAGS: 00010293
RAX: ffffffff83b349f8 RBX: ffff888112614230 RCX: ffff888020625700
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: 1ffff92000c01b84
R13: dffffc0000000000 R14: ffff888040832bc8 R15: ffff888040832bc8
FS:  00007f8beaf036c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556bca67d0 CR3: 000000011449e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x1172/0x4870
 ocfs2_prepare_dir_for_insert+0x3d7b/0x5450
 ocfs2_mknod+0x819/0x2050
 ocfs2_create+0x1a5/0x440
 path_openat+0x14f4/0x3830
 do_filp_open+0x1fa/0x410
 filp_open+0x176/0x1d0
 coredump_file+0x33e/0xaf0
 vfs_coredump+0x1693/0x2a60
 get_signal+0x1108/0x1340
 arch_do_signal_or_restart+0xa0/0x790
 irqentry_exit_to_user_mode+0x7e/0x110
 exc_page_fault+0xab/0x100
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f8be9f8ec31
Code: 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 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:00002000000001b0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8bea1d5fa0 RCX: 00007f8be9f8ec29
RDX: 0000200000000000 RSI: 00002000000001b0 RDI: 0000000004002400
RBP: 00007f8bea011e41 R08: 0000200000000200 R09: 0000200000000200
R10: 00002000000001c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f8bea1d6038 R14: 00007f8bea1d5fa0 R15: 00007ffe09e6d318
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 e3 b2 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 ed 2f cf 07 e8 28 11 0d fe 90 <0f> 0b e8 20 11 0d fe 90 0f 0b e8 18 11 0d fe 90 0f 0b e8 10 11 0d
RSP: 0018:ffffc9000600da88 EFLAGS: 00010293
RAX: ffffffff83b349f8 RBX: ffff888112614230 RCX: ffff888020625700
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: 1ffff92000c01b84
R13: dffffc0000000000 R14: ffff888040832bc8 R15: ffff888040832bc8
FS:  00007f8beaf036c0(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556408d5c8 CR3: 000000011449e000 CR4: 00000000000006f0
