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BUG: KASAN: use-after-free in pmd_set_huge+0xd8/0x340 arch/x86/mm/pgtable.c:676
Read of size 8 at addr ffff888100efa960 by task syz.0.20/5965

CPU: 1 UID: 0 PID: 5965 Comm: syz.0.20 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 pmd_set_huge+0xd8/0x340 arch/x86/mm/pgtable.c:676
 vmap_try_huge_pmd mm/vmalloc.c:161 [inline]
 vmap_pmd_range mm/vmalloc.c:177 [inline]
 vmap_pud_range mm/vmalloc.c:233 [inline]
 vmap_p4d_range mm/vmalloc.c:284 [inline]
 vmap_range_noflush+0x7b3/0xf80 mm/vmalloc.c:308
 __vmap_pages_range_noflush+0xd31/0xf30 mm/vmalloc.c:661
 vmap_pages_range_noflush mm/vmalloc.c:681 [inline]
 vmap_pages_range mm/vmalloc.c:701 [inline]
 __vmalloc_area_node mm/vmalloc.c:3766 [inline]
 __vmalloc_node_range_noprof+0xe8c/0x12d0 mm/vmalloc.c:3897
 __kvmalloc_node_noprof+0x674/0x910 mm/slub.c:7058
 nf_tables_newset+0x1330/0x2540 net/netfilter/nf_tables_api.c:5548
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:526 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:649 [inline]
 nfnetlink_rcv+0x11d9/0x2590 net/netfilter/nfnetlink.c:667
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x830 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmsg net/socket.c:2716 [inline]
 __do_sys_sendmsg net/socket.c:2721 [inline]
 __se_sys_sendmsg net/socket.c:2719 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5fff8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc600ecb038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc6001e5fa0 RCX: 00007fc5fff8eec9
RDX: 0000000004008100 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fc600011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc6001e6038 R14: 00007fc6001e5fa0 R15: 00007ffed63a0428
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100efa
flags: 0x17ff00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 017ff00000000000 ffffea0004772f88 ffff88823c6403a0 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x40100(__GFP_ZERO|__GFP_COMP), pid 0, tgid 0 (swapper/0), ts 1659724794, free_ts 71235002142
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1850
 prep_new_page mm/page_alloc.c:1858 [inline]
 get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3884
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline]
 alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2507
 pagetable_alloc_noprof include/linux/mm.h:3016 [inline]
 pmd_alloc_one_noprof include/asm-generic/pgalloc.h:144 [inline]
 __pmd_alloc+0x3a/0x5d0 mm/memory.c:6573
 pmd_alloc_track mm/pgalloc-track.h:37 [inline]
 vmap_pages_pmd_range mm/vmalloc.c:564 [inline]
 vmap_pages_pud_range mm/vmalloc.c:587 [inline]
 vmap_pages_p4d_range mm/vmalloc.c:605 [inline]
 vmap_small_pages_range_noflush mm/vmalloc.c:627 [inline]
 __vmap_pages_range_noflush+0x9cc/0xf30 mm/vmalloc.c:656
 vmap_pages_range_noflush mm/vmalloc.c:681 [inline]
 vmap_pages_range mm/vmalloc.c:701 [inline]
 vmap+0x1ca/0x310 mm/vmalloc.c:3521
 map_irq_stack arch/x86/kernel/irq_64.c:49 [inline]
 irq_init_percpu_irqstack+0x342/0x4a0 arch/x86/kernel/irq_64.c:76
 init_IRQ+0x15c/0x1c0 arch/x86/kernel/irqinit.c:90
 start_kernel+0x1cd/0x410 init/main.c:1016
 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x147
page last free pid 5965 tgid 5964 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906
 pmd_free_pte_page+0xa1/0xc0 arch/x86/mm/pgtable.c:783
 vmap_try_huge_pmd mm/vmalloc.c:158 [inline]
 vmap_pmd_range mm/vmalloc.c:177 [inline]
 vmap_pud_range mm/vmalloc.c:233 [inline]
 vmap_p4d_range mm/vmalloc.c:284 [inline]
 vmap_range_noflush+0x774/0xf80 mm/vmalloc.c:308
 __vmap_pages_range_noflush+0xd31/0xf30 mm/vmalloc.c:661
 vmap_pages_range_noflush mm/vmalloc.c:681 [inline]
 vmap_pages_range mm/vmalloc.c:701 [inline]
 __vmalloc_area_node mm/vmalloc.c:3766 [inline]
 __vmalloc_node_range_noprof+0xe8c/0x12d0 mm/vmalloc.c:3897
 __kvmalloc_node_noprof+0x674/0x910 mm/slub.c:7058
 nf_tables_newset+0x1330/0x2540 net/netfilter/nf_tables_api.c:5548
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:526 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:649 [inline]
 nfnetlink_rcv+0x11d9/0x2590 net/netfilter/nfnetlink.c:667
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x830 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmsg net/socket.c:2716 [inline]
 __do_sys_sendmsg net/socket.c:2721 [inline]
 __se_sys_sendmsg net/socket.c:2719 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888100efa800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888100efa880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888100efa900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                       ^
 ffff888100efa980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888100efaa00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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