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BUG: KASAN: use-after-free in list_replace /./include/linux/list.h:141 [inline]
BUG: KASAN: use-after-free in list_replace_init /./include/linux/list.h:149 [inline]
BUG: KASAN: use-after-free in padata_parallel_worker+0x313/0x3b0 /kernel/padata.c:74
Write of size 8 at addr ffff88809fc1cd98 by task kworker/0:2/2678
audit: type=1804 audit(1563708299.709:85): pid=3926 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir344317573/syzkaller.hIAkSi/1011/file0/bus" dev="ramfs" ino=143303 res=1

CPU: 0 PID: 2678 Comm: kworker/0:2 Not tainted 4.14.134 #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: pencrypt padata_parallel_worker
Call Trace:
 __dump_stack /lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x19c /lib/dump_stack.c:53
 print_address_description.cold+0x7c/0x1dc /mm/kasan/report.c:252
 kasan_report_error /mm/kasan/report.c:351 [inline]
 kasan_report /mm/kasan/report.c:409 [inline]
 kasan_report.cold+0xa9/0x2af /mm/kasan/report.c:393
 __asan_report_store8_noabort+0x17/0x20 /mm/kasan/report.c:435
 list_replace /./include/linux/list.h:141 [inline]
 list_replace_init /./include/linux/list.h:149 [inline]
 padata_parallel_worker+0x313/0x3b0 /kernel/padata.c:74
 process_one_work+0x863/0x1600 /kernel/workqueue.c:2114
 worker_thread+0x5d9/0x1050 /kernel/workqueue.c:2248
 kthread+0x319/0x430 /kernel/kthread.c:232
 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:404

Allocated by task 3894:
 save_stack_trace+0x16/0x20 /arch/x86/kernel/stacktrace.c:59
 save_stack+0x45/0xd0 /mm/kasan/kasan.c:447
 set_track /mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc /mm/kasan/kasan.c:551 [inline]
 kasan_kmalloc+0xce/0xf0 /mm/kasan/kasan.c:529
 __do_kmalloc /mm/slab.c:3720 [inline]
 __kmalloc+0x15d/0x7a0 /mm/slab.c:3729
 kmalloc /./include/linux/slab.h:493 [inline]
 kzalloc /./include/linux/slab.h:661 [inline]
 tls_push_record+0x10a/0x1210 /net/tls/tls_sw.c:250
 tls_sw_sendmsg+0x9e8/0x1020 /net/tls/tls_sw.c:457
 inet_sendmsg+0x122/0x500 /net/ipv4/af_inet.c:762
 sock_sendmsg_nosec /net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 /net/socket.c:656
 SYSC_sendto+0x206/0x310 /net/socket.c:1763
 SyS_sendto+0x40/0x50 /net/socket.c:1731
 do_syscall_64+0x1e8/0x640 /arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

Freed by task 3894:
 save_stack_trace+0x16/0x20 /arch/x86/kernel/stacktrace.c:59
 save_stack+0x45/0xd0 /mm/kasan/kasan.c:447
 set_track /mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x75/0xc0 /mm/kasan/kasan.c:524
 __cache_free /mm/slab.c:3496 [inline]
 kfree+0xcc/0x270 /mm/slab.c:3815
 tls_push_record+0xc03/0x1210 /net/tls/tls_sw.c:293
 tls_sw_sendmsg+0x9e8/0x1020 /net/tls/tls_sw.c:457
 inet_sendmsg+0x122/0x500 /net/ipv4/af_inet.c:762
 sock_sendmsg_nosec /net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 /net/socket.c:656
 SYSC_sendto+0x206/0x310 /net/socket.c:1763
 SyS_sendto+0x40/0x50 /net/socket.c:1731
 do_syscall_64+0x1e8/0x640 /arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

The buggy address belongs to the object at ffff88809fc1cd40
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 88 bytes inside of
 512-byte region [ffff88809fc1cd40, ffff88809fc1cf40)
The buggy address belongs to the page:
page:ffffea00027f0700 count:1 mapcount:0 mapping:ffff88809fc1c0c0 index:0xffff88809fc1c340
flags: 0x1fffc0000000100(slab)
raw: 01fffc0000000100 ffff88809fc1c0c0 ffff88809fc1c340 0000000100000004
raw: ffffea0002323460 ffffea00024a09a0 ffff8880aa800940 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88809fc1cc80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88809fc1cd00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
>ffff88809fc1cd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88809fc1ce00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809fc1ce80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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