APIC base relocation is unsupported by KVM netlink: 'syz-executor4': attribute type 39 has an invalid length. ================================================================== 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 sha256_base_finish include/crypto/sha256_base.h:124 [inline] BUG: KASAN: slab-out-of-bounds in sha256_final+0x303/0x380 crypto/sha256_generic.c:253 Write of size 4 at addr ffff8801d246cc9c by task syz-executor7/13727 CPU: 1 PID: 13727 Comm: syz-executor7 Not tainted 4.18.0-rc1+ #111 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: netlink: 'syz-executor4': attribute type 39 has an invalid length. __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] sha256_base_finish include/crypto/sha256_base.h:124 [inline] sha256_final+0x303/0x380 crypto/sha256_generic.c:253 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 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: 0033:0x455b29 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:00007f676e4b2c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 00007f676e4b36d4 RCX: 0000000000455b29 RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 0000000000000017 RBP: 000000000072bea0 R08: 0000000020000600 R09: 0000000000000000 R10: 000000000000009b R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004bfe04 R14: 00000000004cf058 R15: 0000000000000000 Allocated by task 13727: 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 6958: 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 tc_action_net_exit include/net/act_api.h:137 [inline] mirred_exit_net+0x1b2/0x460 net/sched/act_mirred.c:348 ops_exit_list.isra.7+0x105/0x160 net/core/net_namespace.c:155 cleanup_net+0x537/0xb50 net/core/net_namespace.c:523 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 kthread+0x345/0x410 kernel/kthread.c:240 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 The buggy address belongs to the object at ffff8801d246cc00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 156 bytes inside of 192-byte region [ffff8801d246cc00, ffff8801d246ccc0) The buggy address belongs to the page: page:ffffea0007491b00 count:1 mapcount:0 mapping:ffff8801da800040 index:0x0 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea00074b9cc8 ffffea0007492048 ffff8801da800040 raw: 0000000000000000 ffff8801d246c000 0000000100000010 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d246cb80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8801d246cc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801d246cc80: 00 00 00 04 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801d246cd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801d246cd80: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================