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BUG: KASAN: stack-out-of-bounds in idempotent kernel/module/main.c:3078 [inline]
BUG: KASAN: stack-out-of-bounds in init_module_from_file kernel/module/main.c:3124 [inline]
BUG: KASAN: stack-out-of-bounds in __do_sys_finit_module kernel/module/main.c:3171 [inline]
BUG: KASAN: stack-out-of-bounds in __se_sys_finit_module+0x371/0x8d0 kernel/module/main.c:3154
Read of size 8 at addr ffffc90004c7fd60 by task syz-executor.0/5132

CPU: 1 PID: 5132 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-10062-gf8566aa4f176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x175/0x1b0 mm/kasan/report.c:588
 idempotent kernel/module/main.c:3078 [inline]
 init_module_from_file kernel/module/main.c:3124 [inline]
 __do_sys_finit_module kernel/module/main.c:3171 [inline]
 __se_sys_finit_module+0x371/0x8d0 kernel/module/main.c:3154
 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: 0033:0x7fbfd9e8c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbfdac4a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007fbfd9fabf80 RCX: 00007fbfd9e8c389
RDX: 0000000000000000 RSI: 0000000020000600 RDI: 0000000000000006
RBP: 00007fbfd9ed7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd4acf1ccf R14: 00007fbfdac4a300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90004c78000, ffffc90004c81000) created by:
 copy_process+0x5c8/0x4290 kernel/fork.c:2329

The buggy address belongs to the physical page:
page:ffffea0000837dc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20df7
memcg:ffff88807790fd82
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88807790fd82
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 63, tgid 63 (kworker/u4:4), ts 194654976632, free_ts 194644917609
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x31e8/0x3370 mm/page_alloc.c:3221
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4477
 vm_area_alloc_pages mm/vmalloc.c:3059 [inline]
 __vmalloc_area_node mm/vmalloc.c:3135 [inline]
 __vmalloc_node_range+0x9a3/0x1490 mm/vmalloc.c:3316
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct+0x3e5/0x7d0 kernel/fork.c:1112
 copy_process+0x5c8/0x4290 kernel/fork.c:2329
 kernel_clone+0x222/0x800 kernel/fork.c:2911
 user_mode_thread+0x132/0x190 kernel/fork.c:2989
 call_usermodehelper_exec_sync kernel/umh.c:133 [inline]
 call_usermodehelper_exec_work+0x97/0x220 kernel/umh.c:164
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2443
 discard_slab mm/slub.c:2108 [inline]
 __unfreeze_partials+0x1dc/0x220 mm/slub.c:2647
 put_cpu_partial+0x116/0x180 mm/slub.c:2723
 __slab_free+0x2b6/0x390 mm/slub.c:3671
 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:750
 slab_alloc_node mm/slub.c:3470 [inline]
 slab_alloc mm/slub.c:3478 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3485 [inline]
 kmem_cache_alloc_lru+0x122/0x300 mm/slub.c:3501
 alloc_inode_sb include/linux/fs.h:2729 [inline]
 sock_alloc_inode+0x28/0xc0 net/socket.c:305
 alloc_inode fs/inode.c:260 [inline]
 new_inode_pseudo+0x65/0x1d0 fs/inode.c:1018
 sock_alloc net/socket.c:631 [inline]
 __sock_create+0x123/0x8d0 net/socket.c:1500
 sock_create net/socket.c:1587 [inline]
 __sys_socket_create net/socket.c:1624 [inline]
 __sys_socket+0x13a/0x3a0 net/socket.c:1652
 __do_sys_socket net/socket.c:1665 [inline]
 __se_sys_socket net/socket.c:1663 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1663
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80

Memory state around the buggy address:
 ffffc90004c7fc00: f2 f2 f2 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00
 ffffc90004c7fc80: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
>ffffc90004c7fd00: 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3
                                                       ^
 ffffc90004c7fd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004c7fe00: f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00 00 00
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