==================================================================
BUG: KASAN: slab-use-after-free in is_vm_hugetlb_page include/linux/hugetlb_inline.h:11 [inline]
BUG: KASAN: slab-use-after-free in vma_resv_map mm/hugetlb.c:1150 [inline]
BUG: KASAN: slab-use-after-free in __vma_reservation_common+0xc9/0x7d0 mm/hugetlb.c:2806
Read of size 8 at addr ffff88807ae90ea8 by task syz-executor.2/6208

CPU: 1 PID: 6208 Comm: syz-executor.2 Not tainted 6.9.0-rc4-next-20240418-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 is_vm_hugetlb_page include/linux/hugetlb_inline.h:11 [inline]
 vma_resv_map mm/hugetlb.c:1150 [inline]
 __vma_reservation_common+0xc9/0x7d0 mm/hugetlb.c:2806
 vma_needs_reservation mm/hugetlb.c:2880 [inline]
 restore_reserve_on_error+0x39/0x1d0 mm/hugetlb.c:2930
 hugetlb_no_page mm/hugetlb.c:6393 [inline]
 hugetlb_fault+0x23b4/0x3890 mm/hugetlb.c:6489
 handle_mm_fault+0x18e8/0x1bb0 mm/memory.c:5663
 do_user_addr_fault arch/x86/mm/fault.c:1369 [inline]
 handle_page_fault arch/x86/mm/fault.c:1512 [inline]
 exc_page_fault+0x459/0x900 arch/x86/mm/fault.c:1570
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f7a3505ef58
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007fff31fd1ed8 EFLAGS: 00010246
RAX: 0000000020000000 RBX: 0000000000000004 RCX: 0030656c69662f2e
RDX: 0000000000000008 RSI: 0030656c69662f2e RDI: 0000000020000000
RBP: 00007f7a351ac120 R08: 00007f7a35000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fff31fd2090
R13: 0000000000000002 R14: ffffffffffffffff R15: 00007f7a35034cb0
 </TASK>

Allocated by task 6209:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3897 [inline]
 slab_alloc_node mm/slub.c:3957 [inline]
 kmem_cache_alloc_noprof+0x135/0x290 mm/slub.c:3964
 vm_area_alloc+0x24/0x1d0 kernel/fork.c:467
 mmap_region+0xc47/0x2060 mm/mmap.c:2873
 do_mmap+0x8ad/0xfa0 mm/mmap.c:1397
 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573
 ksys_mmap_pgoff+0x544/0x720 mm/mmap.c:1443
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 24:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2190 [inline]
 slab_free mm/slub.c:4393 [inline]
 kmem_cache_free+0x145/0x340 mm/slub.c:4468
 rcu_do_batch kernel/rcu/tree.c:2565 [inline]
 rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2839
 __do_softirq+0x2c6/0x980 kernel/softirq.c:554

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
 __call_rcu_common kernel/rcu/tree.c:3102 [inline]
 call_rcu+0x167/0xa70 kernel/rcu/tree.c:3206
 remove_vma mm/mmap.c:148 [inline]
 remove_mt mm/mmap.c:2344 [inline]
 do_vmi_align_munmap+0x155c/0x18c0 mm/mmap.c:2687
 do_vmi_munmap+0x265/0x2f0 mm/mmap.c:2759
 mmap_region+0x729/0x2060 mm/mmap.c:2810
 do_mmap+0x8ad/0xfa0 mm/mmap.c:1397
 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573
 ksys_mmap_pgoff+0x544/0x720 mm/mmap.c:1443
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88807ae90e88
 which belongs to the cache vm_area_struct of size 184
The buggy address is located 32 bytes inside of
 freed 184-byte region [ffff88807ae90e88, ffff88807ae90f40)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7ae90
memcg:ffff88802c97a601
ksm flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffefff(slab)
raw: 00fff80000000000 ffff888015eebb40 ffffea0000bda480 dead000000000007
raw: 0000000000000000 0000000000100010 00000001ffffefff ffff88802c97a601
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 4858, tgid 1368398599 (dhcpcd-run-hook), ts 4858, free_ts 42027233628
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1476
 prep_new_page mm/page_alloc.c:1484 [inline]
 get_page_from_freelist+0x2ce2/0x2d90 mm/page_alloc.c:3446
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4704
 __alloc_pages_node_noprof include/linux/gfp.h:244 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:271 [inline]
 alloc_slab_page+0x5f/0x120 mm/slub.c:2259
 allocate_slab+0x5a/0x2e0 mm/slub.c:2422
 new_slab mm/slub.c:2475 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3624
 __slab_alloc+0x58/0xa0 mm/slub.c:3714
 __slab_alloc_node mm/slub.c:3767 [inline]
 slab_alloc_node mm/slub.c:3945 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x290 mm/slub.c:3964
 vm_area_dup+0x27/0x290 kernel/fork.c:482
 dup_mmap kernel/fork.c:697 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0xcf5/0x1fb0 kernel/fork.c:1737
 copy_process+0x187a/0x3dc0 kernel/fork.c:2390
 kernel_clone+0x226/0x8f0 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 4555 tgid 4555 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1096 [inline]
 free_unref_page+0xd22/0xea0 mm/page_alloc.c:2609
 __slab_free+0x31b/0x3d0 mm/slub.c:4304
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3897 [inline]
 slab_alloc_node mm/slub.c:3957 [inline]
 __do_kmalloc_node mm/slub.c:4077 [inline]
 __kmalloc_node_noprof+0x1d7/0x440 mm/slub.c:4085
 kmalloc_node_noprof include/linux/slab.h:681 [inline]
 kvmalloc_node_noprof+0x72/0x190 mm/util.c:634
 seq_buf_alloc fs/seq_file.c:38 [inline]
 seq_read_iter+0x202/0xd60 fs/seq_file.c:210
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x9c4/0xbd0 fs/read_write.c:476
 ksys_read+0x1a0/0x2c0 fs/read_write.c:619
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88807ae90d80: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807ae90e00: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
>ffff88807ae90e80: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff88807ae90f00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88807ae90f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================