memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4991 'syz-executor285'
loop0: detected capacity change from 0 to 128
oldfs: cannot read superblock
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 4991 at fs/buffer.c:1194 __brelse fs/buffer.c:1194 [inline]
WARNING: CPU: 0 PID: 4991 at fs/buffer.c:1194 brelse include/linux/buffer_head.h:335 [inline]
WARNING: CPU: 0 PID: 4991 at fs/buffer.c:1194 __invalidate_bh_lrus fs/buffer.c:1429 [inline]
WARNING: CPU: 0 PID: 4991 at fs/buffer.c:1194 invalidate_bh_lru+0xfc/0x1b0 fs/buffer.c:1442
Modules linked in:
CPU: 0 PID: 4991 Comm: syz-executor285 Not tainted 6.4.0-rc4-syzkaller-00265-g4ecd704a4c51 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__brelse fs/buffer.c:1194 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:335 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1429 [inline]
RIP: 0010:invalidate_bh_lru+0xfc/0x1b0 fs/buffer.c:1442
Code: 00 e8 d8 e3 df ff f0 ff 0b eb 21 e8 7e 0d 88 ff 41 80 3c 2e 00 75 26 eb 2c e8 70 0d 88 ff 48 c7 c7 00 a0 f7 8a e8 e4 8c 4f ff <0f> 0b 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c 89 ff
RSP: 0018:ffffc90003c2f0a8 EFLAGS: 00010046
RAX: 00caeea4101d0a00 RBX: ffff8880749ab400 RCX: ffff88802890d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81530142 R09: ffffed1017305163
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9838078
R13: 0000000000000000 R14: 1ffff1101730700f R15: ffff8880b9838078
FS:  00005555566ab300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000066c7e0 CR3: 000000007a0cd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 smp_call_function_many_cond+0x130b/0x1f60 kernel/smp.c:819
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:996
 invalidate_bdev+0x8e/0xc0 block/bdev.c:85
 invalidate_disk+0x45/0xe0 block/genhd.c:705
 __loop_clr_fd+0x251/0x6a0 drivers/block/loop.c:1164
 loop_clr_fd drivers/block/loop.c:1257 [inline]
 lo_ioctl+0x16d1/0x2080 drivers/block/loop.c:1563
 blkdev_ioctl+0x602/0x7a0 block/ioctl.c:615
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f631d705627
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 24 44 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff5b45e448 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f631d705627
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007fff5b45e450 R08: 00007fff5b45e490 R09: 0000000000009df6
R10: 0000000000008003 R11: 0000000000000246 R12: 0000000000000004
R13: 00005555566ab2c0 R14: 00007fff5b45e490 R15: 0000000000000000
 </TASK>