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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:2827
Read of size 8 at addr ffff88801fb76720 by task syz-executor.0/16447

CPU: 0 PID: 16447 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #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:2827
 vma_needs_reservation mm/hugetlb.c:2901 [inline]
 restore_reserve_on_error+0x39/0x1d0 mm/hugetlb.c:2951
 hugetlb_no_page mm/hugetlb.c:6411 [inline]
 hugetlb_fault+0x17d4/0x2f60 mm/hugetlb.c:6509
 handle_mm_fault+0x711/0x8a0 mm/memory.c:5604
 do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x446/0x8e0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7effec429725
Code: 30 44 89 e0 90 85 c0 75 33 89 d8 44 29 c0 74 65 48 8b 57 28 48 3b 57 20 0f 84 8e 00 00 00 48 8b 4f 18 48 8d 72 01 48 89 77 28 <0f> b6 34 11 ba 08 00 00 00 39 d0 0f 4f c2 85 c0 74 cd 89 f1 41 0f
RSP: 002b:00007effed137500 EFLAGS: 00010287
RAX: 000000000000000f RBX: 0000000000000010 RCX: 0000000020000c42
RDX: 000000000000051d RSI: 000000000000051e RDI: 00007effed137670
RBP: 0000000000000000 R08: 0000000000000001 R09: 00007effed137612
R10: 0000000000000000 R11: 00007effed1375e0 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000011d R15: 00007effed137670
 </TASK>

Allocated by task 16448:
 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:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc+0x174/0x340 mm/slub.c:3852
 vm_area_alloc+0x24/0x1d0 kernel/fork.c:467
 mmap_region+0xd64/0x1e50 mm/mmap.c:2807
 do_mmap+0x7af/0xe60 mm/mmap.c:1385
 vm_mmap_pgoff+0x1e3/0x420 mm/util.c:573
 ksys_mmap_pgoff+0x53c/0x6e0 mm/mmap.c:1431
 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 15:
 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+0xa6/0xe0 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:2106 [inline]
 slab_free mm/slub.c:4280 [inline]
 kmem_cache_free+0x10b/0x2c0 mm/slub.c:4344
 rcu_do_batch kernel/rcu/tree.c:2196 [inline]
 rcu_core+0xaff/0x1830 kernel/rcu/tree.c:2471
 __do_softirq+0x2c8/0x980 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:2734 [inline]
 call_rcu+0x167/0xa70 kernel/rcu/tree.c:2838
 remove_vma mm/mmap.c:148 [inline]
 remove_mt mm/mmap.c:2289 [inline]
 do_vmi_align_munmap+0x15a7/0x1930 mm/mmap.c:2632
 do_vmi_munmap+0x24e/0x2d0 mm/mmap.c:2696
 mmap_region+0x6af/0x1e50 mm/mmap.c:2747
 do_mmap+0x7af/0xe60 mm/mmap.c:1385
 vm_mmap_pgoff+0x1e3/0x420 mm/util.c:573
 ksys_mmap_pgoff+0x53c/0x6e0 mm/mmap.c:1431
 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 ffff88801fb76700
 which belongs to the cache vm_area_struct of size 192
The buggy address is located 32 bytes inside of
 freed 192-byte region [ffff88801fb76700, ffff88801fb767c0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1fb76
memcg:ffff88805e6dab01
flags: 0xfff80000000800(slab|node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffffff()
raw: 00fff80000000800 ffff888015ee5b40 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080100010 00000001ffffffff ffff88805e6dab01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 16446, tgid 1059068901 (syz-executor.0), ts 16446, free_ts 928253278986
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1534
 prep_new_page mm/page_alloc.c:1541 [inline]
 get_page_from_freelist+0x3410/0x35b0 mm/page_alloc.c:3317
 __alloc_pages+0x256/0x6c0 mm/page_alloc.c:4575
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2175
 allocate_slab mm/slub.c:2338 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2391
 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525
 __slab_alloc mm/slub.c:3610 [inline]
 __slab_alloc_node mm/slub.c:3663 [inline]
 slab_alloc_node mm/slub.c:3835 [inline]
 kmem_cache_alloc+0x252/0x340 mm/slub.c:3852
 vm_area_alloc+0x24/0x1d0 kernel/fork.c:467
 mmap_region+0xd64/0x1e50 mm/mmap.c:2807
 do_mmap+0x7af/0xe60 mm/mmap.c:1385
 vm_mmap_pgoff+0x1e3/0x420 mm/util.c:573
 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 16159 tgid 16159 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1141 [inline]
 free_unref_page_prepare+0x986/0xab0 mm/page_alloc.c:2347
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487
 vfree+0x186/0x2e0 mm/vmalloc.c:3340
 delayed_vfree_work+0x56/0x80 mm/vmalloc.c:3261
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f2/0x390 kernel/kthread.c:388
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88801fb76600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801fb76680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff88801fb76700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff88801fb76780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88801fb76800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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