------------[ cut here ]------------
WARNING: CPU: 1 PID: 10496 at fs/read_write.c:440 __kernel_read+0x8ff/0xa90 fs/read_write.c:440
Modules linked in:
CPU: 1 PID: 10496 Comm: syz-executor.4 Not tainted 5.14.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__kernel_read+0x8ff/0xa90 fs/read_write.c:440
Code: 8b e8 75 f2 2b 02 31 ff 89 c3 89 c6 e8 ba 21 af ff 85 db 0f 85 60 bc 24 07 49 c7 c5 ea ff ff ff e9 49 fe ff ff e8 f1 18 af ff <0f> 0b 49 c7 c5 ea ff ff ff e9 36 fe ff ff e8 4e db f4 ff e9 b5 f7
RSP: 0018:ffffc9000884fb48 EFLAGS: 00010206
RAX: 0000000000001fa0 RBX: 0000000000000400 RCX: ffffc90011bed000
RDX: 0000000000040000 RSI: ffffffff81c5c57f RDI: 0000000000000003
RBP: 000000004808801c R08: 0000000000000000 R09: 0000000000008000
R10: ffffffff81c5bd68 R11: 0000000000004000 R12: ffff8880304847c0
R13: 0000000000000001 R14: ffffc9000884fd18 R15: 1ffff92001109f6c
FS:  00007f20a48de700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563d44aa2b40 CR3: 0000000085ffa000 CR4: 00000000001506e0
Call Trace:
 kernel_read+0x52/0x70 fs/read_write.c:472
 kernel_read_file+0x3b8/0x790 fs/kernel_read_file.c:93
 kernel_read_file_from_fd+0x62/0xb0 fs/kernel_read_file.c:184
 __do_sys_finit_module+0xed/0x1a0 kernel/module.c:4175
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f20a48de188 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc93b846cf R14: 00007f20a48de300 R15: 0000000000022000
----------------
Code disassembly (best guess):
   0:	8b e8                	mov    %eax,%ebp
   2:	75 f2                	jne    0xfffffff6
   4:	2b 02                	sub    (%rdx),%eax
   6:	31 ff                	xor    %edi,%edi
   8:	89 c3                	mov    %eax,%ebx
   a:	89 c6                	mov    %eax,%esi
   c:	e8 ba 21 af ff       	callq  0xffaf21cb
  11:	85 db                	test   %ebx,%ebx
  13:	0f 85 60 bc 24 07    	jne    0x724bc79
  19:	49 c7 c5 ea ff ff ff 	mov    $0xffffffffffffffea,%r13
  20:	e9 49 fe ff ff       	jmpq   0xfffffe6e
  25:	e8 f1 18 af ff       	callq  0xffaf191b
  2a:	0f 0b                	ud2     <-- trapping instruction
  2c:	49 c7 c5 ea ff ff ff 	mov    $0xffffffffffffffea,%r13
  33:	e9 36 fe ff ff       	jmpq   0xfffffe6e
  38:	e8 4e db f4 ff       	callq  0xfff4db8b
  3d:	e9                   	.byte 0xe9
  3e:	b5 f7                	mov    $0xf7,%ch