==================================================================
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+0x62c/0x6a0 kernel/module/main.c:3124
Read of size 8 at addr ffffc900053efe20 by task syz-executor.4/6690

CPU: 1 PID: 6690 Comm: syz-executor.4 Not tainted 6.4.0-syzkaller-11311-g24be4d0b46bb #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+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:364
 print_report mm/kasan/report.c:475 [inline]
 kasan_report+0x11d/0x130 mm/kasan/report.c:588
 idempotent kernel/module/main.c:3078 [inline]
 init_module_from_file+0x62c/0x6a0 kernel/module/main.c:3124
 __do_sys_finit_module kernel/module/main.c:3171 [inline]
 __se_sys_finit_module kernel/module/main.c:3154 [inline]
 __x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1b7d28c389
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:00007f1b7e042168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f1b7d3abf80 RCX: 00007f1b7d28c389
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f1b7d2d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd38fb8fdf R14: 00007f1b7e042300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900053e8000, ffffc900053f1000) created by:
 kernel_clone+0xeb/0x890 kernel/fork.c:2911

The buggy address belongs to the physical page:
page:ffffea0001e74000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79d00
memcg:ffff8880787b9f02
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff8880787b9f02
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 10, tgid 10 (kworker/u4:0), ts 941771058628, free_ts 941719156324
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0xfed/0x2d30 mm/page_alloc.c:3221
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 vm_area_alloc_pages mm/vmalloc.c:3059 [inline]
 __vmalloc_area_node mm/vmalloc.c:3135 [inline]
 __vmalloc_node_range+0xb1c/0x14c0 mm/vmalloc.c:3316
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct kernel/fork.c:1112 [inline]
 copy_process+0x13bb/0x75c0 kernel/fork.c:2329
 kernel_clone+0xeb/0x890 kernel/fork.c:2911
 user_mode_thread+0xb1/0xf0 kernel/fork.c:2989
 call_usermodehelper_exec_sync kernel/umh.c:133 [inline]
 call_usermodehelper_exec_work+0x6d/0x180 kernel/umh.c:164
 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748
 kthread+0x344/0x440 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+0x62e/0xcb0 mm/page_alloc.c:2348
 free_unref_page_list+0xe3/0xa70 mm/page_alloc.c:2489
 release_pages+0xcd8/0x1380 mm/swap.c:1042
 tlb_batch_pages_flush+0xa8/0x1a0 mm/mmu_gather.c:97
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu mm/mmu_gather.c:299 [inline]
 tlb_finish_mmu+0x14b/0x7e0 mm/mmu_gather.c:391
 exit_mmap+0x2cd/0x960 mm/mmap.c:3210
 __mmput+0x128/0x4c0 kernel/fork.c:1347
 mmput+0x60/0x70 kernel/fork.c:1369
 exit_mm kernel/exit.c:567 [inline]
 do_exit+0x9a7/0x29a0 kernel/exit.c:861
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
 get_signal+0x249b/0x25f0 kernel/signal.c:2877
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc900053efd00: f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900053efd80: 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00
>ffffc900053efe00: 00 00 f1 f1 f1 f1 f1 f1 04 f2 04 f2 00 00 00 00
                               ^
 ffffc900053efe80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00
 ffffc900053eff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
==================================================================
BUG: KASAN: stack-out-of-bounds in idempotent kernel/module/main.c:3077 [inline]
BUG: KASAN: stack-out-of-bounds in init_module_from_file+0x669/0x6a0 kernel/module/main.c:3124
Read of size 8 at addr ffffc900053efe28 by task syz-executor.4/6690

CPU: 1 PID: 6690 Comm: syz-executor.4 Tainted: G    B              6.4.0-syzkaller-11311-g24be4d0b46bb #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+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:364
 print_report mm/kasan/report.c:475 [inline]
 kasan_report+0x11d/0x130 mm/kasan/report.c:588
 idempotent kernel/module/main.c:3077 [inline]
 init_module_from_file+0x669/0x6a0 kernel/module/main.c:3124
 __do_sys_finit_module kernel/module/main.c:3171 [inline]
 __se_sys_finit_module kernel/module/main.c:3154 [inline]
 __x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1b7d28c389
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:00007f1b7e042168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f1b7d3abf80 RCX: 00007f1b7d28c389
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f1b7d2d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd38fb8fdf R14: 00007f1b7e042300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc900053e8000, ffffc900053f1000) created by:
 kernel_clone+0xeb/0x890 kernel/fork.c:2911

The buggy address belongs to the physical page:
page:ffffea0001e74000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79d00
memcg:ffff8880787b9f02
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff8880787b9f02
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 10, tgid 10 (kworker/u4:0), ts 941771058628, free_ts 941719156324
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0xfed/0x2d30 mm/page_alloc.c:3221
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 vm_area_alloc_pages mm/vmalloc.c:3059 [inline]
 __vmalloc_area_node mm/vmalloc.c:3135 [inline]
 __vmalloc_node_range+0xb1c/0x14c0 mm/vmalloc.c:3316
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct kernel/fork.c:1112 [inline]
 copy_process+0x13bb/0x75c0 kernel/fork.c:2329
 kernel_clone+0xeb/0x890 kernel/fork.c:2911
 user_mode_thread+0xb1/0xf0 kernel/fork.c:2989
 call_usermodehelper_exec_sync kernel/umh.c:133 [inline]
 call_usermodehelper_exec_work+0x6d/0x180 kernel/umh.c:164
 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748
 kthread+0x344/0x440 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+0x62e/0xcb0 mm/page_alloc.c:2348
 free_unref_page_list+0xe3/0xa70 mm/page_alloc.c:2489
 release_pages+0xcd8/0x1380 mm/swap.c:1042
 tlb_batch_pages_flush+0xa8/0x1a0 mm/mmu_gather.c:97
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu mm/mmu_gather.c:299 [inline]
 tlb_finish_mmu+0x14b/0x7e0 mm/mmu_gather.c:391
 exit_mmap+0x2cd/0x960 mm/mmap.c:3210
 __mmput+0x128/0x4c0 kernel/fork.c:1347
 mmput+0x60/0x70 kernel/fork.c:1369
 exit_mm kernel/exit.c:567 [inline]
 do_exit+0x9a7/0x29a0 kernel/exit.c:861
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
 get_signal+0x249b/0x25f0 kernel/signal.c:2877
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc900053efd00: f2 f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900053efd80: 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00
>ffffc900053efe00: 00 00 f1 f1 f1 f1 f1 f1 04 f2 04 f2 00 00 00 00
                                  ^
 ffffc900053efe80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00
 ffffc900053eff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
general protection fault, probably for non-canonical address 0xe3fffb240014fbf8: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x1ffff92000a7dfc0-0x1ffff92000a7dfc7]
CPU: 1 PID: 6690 Comm: syz-executor.4 Tainted: G    B              6.4.0-syzkaller-11311-g24be4d0b46bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:idempotent kernel/module/main.c:3078 [inline]
RIP: 0010:init_module_from_file+0x1c1/0x6a0 kernel/module/main.c:3124
Code: 0f 84 c0 01 00 00 e8 ae f1 12 00 4d 89 e7 49 83 ef 08 74 61 e8 a0 f1 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 59 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 77 f1
RSP: 0018:ffffc9000577fd28 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: 00000000000000b4 RCX: ffffc9000d8f1000
RDX: 03ffff240014fbf8 RSI: ffffffff8171ed30 RDI: 0000000000000007
RBP: ffff888047720280 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900053efe28
R13: ffff888047b7b6c0 R14: ffffffff921496c0 R15: 1ffff92000a7dfc4
FS:  00007f1b7e042700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200035c0 CR3: 000000002c718000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 __do_sys_finit_module kernel/module/main.c:3171 [inline]
 __se_sys_finit_module kernel/module/main.c:3154 [inline]
 __x64_sys_finit_module+0xfd/0x190 kernel/module/main.c:3154
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1b7d28c389
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:00007f1b7e042168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f1b7d3abf80 RCX: 00007f1b7d28c389
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f1b7d2d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd38fb8fdf R14: 00007f1b7e042300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:idempotent kernel/module/main.c:3078 [inline]
RIP: 0010:init_module_from_file+0x1c1/0x6a0 kernel/module/main.c:3124
Code: 0f 84 c0 01 00 00 e8 ae f1 12 00 4d 89 e7 49 83 ef 08 74 61 e8 a0 f1 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 59 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 77 f1
RSP: 0018:ffffc9000577fd28 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: 00000000000000b4 RCX: ffffc9000d8f1000
RDX: 03ffff240014fbf8 RSI: ffffffff8171ed30 RDI: 0000000000000007
RBP: ffff888047720280 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc900053efe28
R13: ffff888047b7b6c0 R14: ffffffff921496c0 R15: 1ffff92000a7dfc4
FS:  00007f1b7e042700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200035c0 CR3: 000000002c718000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
   0:	0f 84 c0 01 00 00    	je     0x1c6
   6:	e8 ae f1 12 00       	callq  0x12f1b9
   b:	4d 89 e7             	mov    %r12,%r15
   e:	49 83 ef 08          	sub    $0x8,%r15
  12:	74 61                	je     0x75
  14:	e8 a0 f1 12 00       	callq  0x12f1b9
  19:	4c 89 fa             	mov    %r15,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 59 04 00 00    	jne    0x48d
  34:	4d 3b 2f             	cmp    (%r15),%r13
  37:	0f 84 ae 00 00 00    	je     0xeb
  3d:	e8                   	.byte 0xe8
  3e:	77 f1                	ja     0x31