syzbot

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WARNING: CPU: 1 PID: 22954 at mm/shmem.c:1388 shmem_evict_inode+0x8f0/0xbe0 mm/shmem.c:1388
Modules linked in:
CPU: 1 UID: 0 PID: 22954 Comm: syz.2.3337 Not tainted 6.15.0-rc5-syzkaller-00207-g1a33418a69cc #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:shmem_evict_inode+0x8f0/0xbe0 mm/shmem.c:1388
Code: fe e8 e4 27 be ff 45 85 ff 75 ac e8 9a 2c be ff 48 8b 74 24 28 48 8b 7c 24 30 e8 1b 6c 97 ff e9 e3 fd ff ff e8 81 2c be ff 90 <0f> 0b 90 e9 4f f9 ff ff e8 73 2c be ff 4c 89 e2 48 b8 00 00 00 00
RSP: 0018:ffffc900061ef9b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888069940180 RCX: ffffffff81fc69ae
RDX: ffff888025ee8000 RSI: ffffffff81fc705f RDI: 0000000000000007
RBP: ffffc900061efae0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000000 R12: 0000000000000008
R13: 0000000000000000 R14: ffff8880699401b0 R15: ffff888069940070
FS:  0000000000000000(0000) GS:ffff8880978ec000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000570394c0 CR3: 0000000071914000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 evict+0x3e3/0x920 fs/inode.c:810
 iput_final fs/inode.c:1898 [inline]
 iput fs/inode.c:1924 [inline]
 iput+0x521/0x880 fs/inode.c:1910
 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:457
 __dentry_kill+0x1d0/0x600 fs/dcache.c:660
 dput.part.0+0x4b1/0x9b0 fs/dcache.c:902
 dput+0x1f/0x30 fs/dcache.c:892
 __fput+0x51c/0xb70 fs/file_table.c:473
 task_work_run+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xafb/0x2c30 kernel/exit.c:953
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __ia32_sys_exit_group+0x3e/0x50 kernel/exit.c:1111
 ia32_sys_call+0xd56/0x1c40 arch/x86/include/generated/asm/syscalls_32.h:253
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf708e579
Code: Unable to access opcode bytes at 0xf708e54f.
RSP: 002b:00000000ff9cf05c EFLAGS: 00000286 ORIG_RAX: 00000000000000fc
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ffffff9c RDI: 00000000f73f2ff4
RBP: 000000000000002c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>