BUG: unable to handle page fault for address: 0000007800000004
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 11ebd5067 P4D 11ebd5067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 10246 Comm: syz-executor.5 Not tainted 5.9.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:io_uring_show_cred+0x134/0x1e0 fs/io_uring.c:8935
Code: 73 df ff 48 c7 c6 4e 1c 63 84 48 89 ef 89 c2 e8 52 c7 fb ff 48 c7 c6 f3 15 4c 84 48 89 ef e8 b3 b5 fb ff 4d 8b a6 a0 00 00 00 <41> 8b 44 24 04 85 c0 7e 52 41 8b 74 24 08 4c 89 ef 31 db 49 c7 c7
RSP: 0018:ffffc90002a23c68 EFLAGS: 00010216
RAX: ffff88811e8d50ca RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000a RSI: ffffffff844c15fd RDI: ffff88811e8d50d4
RBP: ffff88810720d2b8 R08: 0000000000000009 R09: 0000000000ffff0a
R10: ffffc90002a23ca0 R11: 0000000000000000 R12: 0000007800000000
R13: ffffffff84aff680 R14: ffff888144b87fc0 R15: 0000000000000000
FS:  00007f531eb7f700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000007800000004 CR3: 000000011ebd6000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 idr_for_each+0x57/0xc0 lib/idr.c:208
 __io_uring_show_fdinfo fs/io_uring.c:8987 [inline]
 io_uring_show_fdinfo+0x24b/0x4e0 fs/io_uring.c:9009
 seq_show+0x163/0x260 fs/proc/fd.c:65
 seq_read+0x120/0x3e0 fs/seq_file.c:208
 do_loop_readv_writev fs/read_write.c:742 [inline]
 do_iter_read+0x13f/0x1b0 fs/read_write.c:784
 vfs_readv+0x68/0xa0 fs/read_write.c:902
 do_preadv+0x87/0xd0 fs/read_write.c:994
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f531eb7ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000025e40 RCX: 000000000045deb9
RDX: 0000000000000333 RSI: 00000000200017c0 RDI: 0000000000000004
RBP: 000000000118bf70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc88f7cccf R14: 00007f531eb7f9c0 R15: 000000000118bf2c
Modules linked in:
CR2: 0000007800000004
---[ end trace f4bd5eac5fc48907 ]---
RIP: 0010:io_uring_show_cred+0x134/0x1e0 fs/io_uring.c:8935
Code: 73 df ff 48 c7 c6 4e 1c 63 84 48 89 ef 89 c2 e8 52 c7 fb ff 48 c7 c6 f3 15 4c 84 48 89 ef e8 b3 b5 fb ff 4d 8b a6 a0 00 00 00 <41> 8b 44 24 04 85 c0 7e 52 41 8b 74 24 08 4c 89 ef 31 db 49 c7 c7
RSP: 0018:ffffc90002a23c68 EFLAGS: 00010216
RAX: ffff88811e8d50ca RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000a RSI: ffffffff844c15fd RDI: ffff88811e8d50d4
RBP: ffff88810720d2b8 R08: 0000000000000009 R09: 0000000000ffff0a
R10: ffffc90002a23ca0 R11: 0000000000000000 R12: 0000007800000000
R13: ffffffff84aff680 R14: ffff888144b87fc0 R15: 0000000000000000
FS:  00007f531eb7f700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560ad5de2188 CR3: 000000011ebd6000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400