==================================================================
BUG: KASAN: invalid-access in __memcpy+0xc/0x54 arch/arm64/lib/memcpy.S:250
Write at addr faff80008812d160 by task syz.0.19/3525
Pointer tag: [fa], memory tag: [fe]

CPU: 1 UID: 0 PID: 3525 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
Call trace:
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x78/0x90 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x108/0x61c mm/kasan/report.c:482
 kasan_report+0x88/0xac mm/kasan/report.c:595
 report_tag_fault arch/arm64/mm/fault.c:326 [inline]
 do_tag_recovery arch/arm64/mm/fault.c:338 [inline]
 __do_kernel_fault+0x170/0x1c8 arch/arm64/mm/fault.c:380
 do_bad_area+0x68/0x78 arch/arm64/mm/fault.c:480
 do_tag_check_fault+0x34/0x44 arch/arm64/mm/fault.c:853
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:929
 el1_abort+0x44/0x68 arch/arm64/kernel/entry-common.c:325
 el1h_64_sync_handler+0x50/0xac arch/arm64/kernel/entry-common.c:459
 el1h_64_sync+0x6c/0x70 arch/arm64/kernel/entry.S:591
 __memcpy+0xc/0x54 arch/arm64/lib/memcpy.S:250 (P)
 convert_ctx_accesses+0x694/0xb28 kernel/bpf/verifier.c:21478
 bpf_check+0x1338/0x2a24 kernel/bpf/verifier.c:24683
 bpf_prog_load+0x63c/0xcd4 kernel/bpf/syscall.c:3077
 __sys_bpf+0x2e0/0x1a88 kernel/bpf/syscall.c:6149
 __do_sys_bpf kernel/bpf/syscall.c:6259 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6257 [inline]
 __arm64_sys_bpf+0x24/0x34 kernel/bpf/syscall.c:6257
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151
 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:746
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596

The buggy address belongs to a 1-page vmalloc region starting at 0xfaff80008812d000 allocated at bpf_check+0x8c/0x2a24 kernel/bpf/verifier.c:24529
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4ad47
flags: 0x1ffd40000000000(node=0|zone=0|lastcpupid=0x7ff|kasantag=0x5)
raw: 01ffd40000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
Unable to handle kernel paging request at virtual address ffff80008812cf00
Mem abort info:
  ESR = 0x0000000096000007
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x07: level 3 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000007, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
swapper pgtable: 4k pages, 52-bit VAs, pgdp=00000000429e4000
[ffff80008812cf00] pgd=1000000042f4a003, p4d=1000000042f4b003, pud=1000000042f4c003, pmd=1000000045c36403, pte=0000000000000000
Internal error: Oops: 0000000096000007 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 3525 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 624020c9 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : mte_get_mem_tag arch/arm64/include/asm/mte-kasan.h:101 [inline]
pc : kasan_metadata_fetch_row+0xc/0x28 mm/kasan/report_hw_tags.c:62
lr : print_memory_metadata mm/kasan/report.c:458 [inline]
lr : print_report+0x29c/0x61c mm/kasan/report.c:483
sp : ffff80008912b5e0
x29: ffff80008912b5e0 x28: faf000000ae5cb00 x27: fbff800088125060
x26: 0000000000000058 x25: ffff8000824a3850 x24: ffff8000824a3858
x23: ffff80008812d160 x22: ffff800082474138 x21: ffff80008812d000
x20: 00000000fffffffe x19: ffff80008812cf00 x18: 0000000000000010
x17: ffff80008295fa60 x16: 0000000000006200 x15: ffff80008912b460
x14: ffff80008912b65c x13: ffff80008912b649 x12: ffff800082a5fa00
x11: 0000000000000001 x10: 0000000000000001 x9 : 000000000002ffe8
x8 : faf000000ae5cb00 x7 : 0000000000000010 x6 : ffff800081cc0468
x5 : 0000000000000030 x4 : 0000000000000002 x3 : ffff80008812d000
x2 : ffff80008812cf00 x1 : ffff80008812cf10 x0 : ffff80008912b638
Call trace:
 kasan_metadata_fetch_row+0xc/0x28 mm/kasan/report_hw_tags.c:61 (P)
 kasan_report+0x88/0xac mm/kasan/report.c:595
 report_tag_fault arch/arm64/mm/fault.c:326 [inline]
 do_tag_recovery arch/arm64/mm/fault.c:338 [inline]
 __do_kernel_fault+0x170/0x1c8 arch/arm64/mm/fault.c:380
 do_bad_area+0x68/0x78 arch/arm64/mm/fault.c:480
 do_tag_check_fault+0x34/0x44 arch/arm64/mm/fault.c:853
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:929
 el1_abort+0x44/0x68 arch/arm64/kernel/entry-common.c:325
 el1h_64_sync_handler+0x50/0xac arch/arm64/kernel/entry-common.c:459
 el1h_64_sync+0x6c/0x70 arch/arm64/kernel/entry.S:591
 __memcpy+0xc/0x54 arch/arm64/lib/memcpy.S:250 (P)
 convert_ctx_accesses+0x694/0xb28 kernel/bpf/verifier.c:21478
 bpf_check+0x1338/0x2a24 kernel/bpf/verifier.c:24683
 bpf_prog_load+0x63c/0xcd4 kernel/bpf/syscall.c:3077
 __sys_bpf+0x2e0/0x1a88 kernel/bpf/syscall.c:6149
 __do_sys_bpf kernel/bpf/syscall.c:6259 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6257 [inline]
 __arm64_sys_bpf+0x24/0x34 kernel/bpf/syscall.c:6257
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151
 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:746
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596
Code: d65f03c0 91040023 aa0103e2 91004021 (d9600042) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d65f03c0 	ret
   4:	91040023 	add	x3, x1, #0x100
   8:	aa0103e2 	mov	x2, x1
   c:	91004021 	add	x1, x1, #0x10
* 10:	d9600042 	ldg	x2, [x2] <-- trapping instruction