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BUG: KASAN: slab-out-of-bounds in put_unaligned_be32 include/linux/unaligned/access_ok.h:60 [inline]
BUG: KASAN: slab-out-of-bounds in sha1_base_finish include/crypto/sha1_base.h:102 [inline]
BUG: KASAN: slab-out-of-bounds in sha1_final+0x283/0x2e0 crypto/sha1_generic.c:58
Write of size 4 at addr ffff8801ade4cd18 by task syz-executor7/31148

CPU: 1 PID: 31148 Comm: syz-executor7 Not tainted 4.18.0-rc2+ #117
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
 __asan_report_store4_noabort+0x17/0x20 mm/kasan/report.c:437
 put_unaligned_be32 include/linux/unaligned/access_ok.h:60 [inline]
 sha1_base_finish include/crypto/sha1_base.h:102 [inline]
 sha1_final+0x283/0x2e0 crypto/sha1_generic.c:58
 crypto_shash_final+0x104/0x260 crypto/shash.c:152
 kdf_ctr security/keys/dh.c:186 [inline]
 keyctl_dh_compute_kdf security/keys/dh.c:217 [inline]
 __keyctl_dh_compute+0x1198/0x1be0 security/keys/dh.c:389
rdma_op 00000000b0345a1c conn xmit_rdma           (null)
 keyctl_dh_compute+0xc5/0x11f security/keys/dh.c:425
 __do_sys_keyctl security/keys/keyctl.c:1741 [inline]
 __se_sys_keyctl security/keys/keyctl.c:1637 [inline]
 __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a99
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007fcf26a25c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa
RAX: ffffffffffffffda RBX: 00007fcf26a266d4 RCX: 0000000000455a99
RDX: 0000000020a53ffb RSI: 0000000020000100 RDI: 0000000000000017
RBP: 000000000072bea0 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004bfd68 R14: 00000000004cefb8 R15: 0000000000000000

Allocated by task 31148:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
 __do_kmalloc mm/slab.c:3718 [inline]
 __kmalloc+0x14e/0x760 mm/slab.c:3727
 kmalloc include/linux/slab.h:518 [inline]
 keyctl_dh_compute_kdf security/keys/dh.c:211 [inline]
 __keyctl_dh_compute+0x1000/0x1be0 security/keys/dh.c:389
 keyctl_dh_compute+0xc5/0x11f security/keys/dh.c:425
 __do_sys_keyctl security/keys/keyctl.c:1741 [inline]
 __se_sys_keyctl security/keys/keyctl.c:1637 [inline]
 __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 29980:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kfree+0xd9/0x260 mm/slab.c:3813
 kvfree+0x61/0x70 mm/util.c:442
 kvm_page_track_free_memslot+0x6f/0xc0 arch/x86/kvm/page_track.c:32
 kvm_arch_free_memslot+0x17b/0x270 arch/x86/kvm/x86.c:8885
 kvm_free_memslot+0xb8/0x110 arch/x86/kvm/../../../virt/kvm/kvm_main.c:554
 kvm_free_memslots+0x99/0x100 arch/x86/kvm/../../../virt/kvm/kvm_main.c:567
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:749 [inline]
 kvm_put_kvm+0xa05/0x1060 arch/x86/kvm/../../../virt/kvm/kvm_main.c:767
 kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:778
 __fput+0x35b/0x8b0 fs/file_table.c:209
 ____fput+0x15/0x20 fs/file_table.c:243
 task_work_run+0x1ec/0x2a0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1b08/0x2750 kernel/exit.c:865
 do_group_exit+0x177/0x440 kernel/exit.c:968
 get_signal+0x88e/0x1970 kernel/signal.c:2468
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e0/0x370 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8801ade4cd00
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 24 bytes inside of
 32-byte region [ffff8801ade4cd00, ffff8801ade4cd20)
The buggy address belongs to the page:
page:ffffea0006b79300 count:1 mapcount:0 mapping:ffff8801da8001c0 index:0xffff8801ade4cfc1
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffffea0005d41248 ffffea00073d8448 ffff8801da8001c0
raw: ffff8801ade4cfc1 ffff8801ade4c000 0000000100000002 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801ade4cc00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8801ade4cc80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
>ffff8801ade4cd00: 00 00 00 fc fc fc fc fc fb fb fb fb fc fc fc fc
                            ^
 ffff8801ade4cd80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8801ade4ce00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
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