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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 ffffc9000599fd60 by task syz-executor.0/10893

CPU: 0 PID: 10893 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-10173-ga901a3568fd2 #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: 0033:0x7f81f1e8c389
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:00007f81f2bb9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f81f1fac120 RCX: 00007f81f1e8c389
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 00007f81f1ed7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc214b5b6f R14: 00007f81f2bb9300 R15: 0000000000022000
 </TASK>

The buggy address belongs to the virtual mapping at
 [ffffc90005998000, ffffc900059a1000) created by:
 copy_process+0x5c8/0x4290 kernel/fork.c:2329

The buggy address belongs to the physical page:
page:ffffea0000913980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x244e6
memcg:ffff88807ea6c282
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88807ea6c282
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 10679, tgid 10679 (syz-executor.4), ts 373288420826, free_ts 373123923560
 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
 __do_sys_clone kernel/fork.c:3054 [inline]
 __se_sys_clone kernel/fork.c:3038 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:3038
 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
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_list+0x596/0x830 mm/page_alloc.c:2489
 release_pages+0x2193/0x2470 mm/swap.c:1042
 tlb_batch_pages_flush mm/mmu_gather.c:97 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu+0x100/0x210 mm/mmu_gather.c:299
 tlb_finish_mmu+0xd4/0x1f0 mm/mmu_gather.c:391
 exit_mmap+0x3e2/0xad0 mm/mmap.c:3211
 __mmput+0x115/0x3c0 kernel/fork.c:1347
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x612/0x2290 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x1709/0x17e0 kernel/signal.c:2877
 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86

Memory state around the buggy address:
 ffffc9000599fc00: 00 00 00 00 f1 f1 f1 f1 00 00 00 f2 f2 f2 f2 f2
 ffffc9000599fc80: 04 f2 00 f2 f2 f2 00 00 f3 f3 f3 f3 00 00 00 00
>ffffc9000599fd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                       ^
 ffffc9000599fd80: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
 ffffc9000599fe00: 00 00 f2 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00
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