R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffca84fd02f R14: 00007f119731b300 R15: 0000000000022000
 </TASK>
==================================================================
BUG: KASAN: stack-out-of-bounds in init_module_from_file+0x630/0x6b0
Read of size 8 at addr ffff888042f8fe20 by task syz-executor.4/8608

CPU: 0 PID: 8608 Comm: syz-executor.4 Not tainted 6.4.0-next-20230630 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x91/0xf0
 print_report+0xcc/0x620
 kasan_report+0xbe/0xf0
 init_module_from_file+0x630/0x6b0
 __x64_sys_finit_module+0xee/0x160
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fead5731b19
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:00007fead2c86188 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007fead5845020 RCX: 00007fead5731b19
RDX: 0000000000000002 RSI: 0000000020000040 RDI: 0000000000000006
RBP: 00007fead578bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5f66854f R14: 00007fead2c86300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the physical page:
page:00000000d272f93a refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x42f8f
flags: 0x100000000000000(node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888042f8fd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888042f8fd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1
>ffff888042f8fe00: f1 f1 f1 f1 04 f2 00 00 f2 f2 00 00 00 f3 f3 f3
                               ^
 ffff888042f8fe80: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888042f8ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================