CPU: 0 PID: 13593 Comm: syz-executor963 Not tainted 4.14.179-syzkaller #0
==================================================================
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:347 [inline]
BUG: KASAN: slab-out-of-bounds in memcpy_dir crypto/scatterwalk.c:28 [inline]
BUG: KASAN: slab-out-of-bounds in scatterwalk_copychunks+0x207/0x690 crypto/scatterwalk.c:43
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold.3+0x105/0x14b lib/fault-inject.c:149
Read of size 4096 at addr ffff8880981f3000 by task syz-executor963/13592

 should_failslab+0xba/0xf0 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 __do_kmalloc mm/slab.c:3718 [inline]
 __kmalloc+0x70/0x7b0 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 gcmaes_encrypt.constprop.14+0x130/0xae0 arch/x86/crypto/aesni-intel_glue.c:774
 generic_gcmaes_encrypt+0xf8/0x13d arch/x86/crypto/aesni-intel_glue.c:1111
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 gcmaes_wrapper_encrypt+0xe5/0x140 arch/x86/crypto/aesni-intel_glue.c:945
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 tls_do_encryption net/tls/tls_sw.c:234 [inline]
 tls_push_record+0x8ec/0x14d0 net/tls/tls_sw.c:270
 tls_sw_sendpage+0x446/0xc50 net/tls/tls_sw.c:617
 inet_sendpage+0x125/0x600 net/ipv4/af_inet.c:779
 kernel_sendpage+0x63/0xd0 net/socket.c:3407
 sock_sendpage+0x6d/0xd0 net/socket.c:871
 pipe_to_sendpage+0x208/0x420 fs/splice.c:451
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x2d4/0x730 fs/splice.c:626
 splice_from_pipe+0xb5/0x110 fs/splice.c:661
 generic_splice_sendpage+0x10/0x20 fs/splice.c:832
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x107/0x1c0 fs/splice.c:1018
 splice_direct_to_actor+0x27f/0x760 fs/splice.c:973
 do_splice_direct+0x144/0x250 fs/splice.c:1061
 do_sendfile+0x463/0xd00 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xf5/0x110 fs/read_write.c:1488
 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x446879
RSP: 002b:00007fe4aebcad08 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446879
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00000000006dbc30 R08: 0000000000000002 R09: 0000000000003931
R10: 0000000000006785 R11: 0000000000000246 R12: 00000000006dbc3c
R13: 00007fe4aebcad10 R14: 0000000000000008 R15: 0000000000000000
CPU: 1 PID: 13592 Comm: syz-executor963 Not tainted 4.14.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
 print_address_description.cold.7+0x9/0x1c9 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report.cold.8+0x11a/0x2d3 mm/kasan/report.c:409
 check_memory_region_inline mm/kasan/kasan.c:260 [inline]
 check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267
 memcpy+0x23/0x50 mm/kasan/kasan.c:302
 memcpy include/linux/string.h:347 [inline]
 memcpy_dir crypto/scatterwalk.c:28 [inline]
 scatterwalk_copychunks+0x207/0x690 crypto/scatterwalk.c:43
 scatterwalk_map_and_copy+0x10d/0x1a0 crypto/scatterwalk.c:72
 gcmaes_encrypt.constprop.14+0x1c0/0xae0 arch/x86/crypto/aesni-intel_glue.c:778
 generic_gcmaes_encrypt+0xf8/0x13d arch/x86/crypto/aesni-intel_glue.c:1111
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 gcmaes_wrapper_encrypt+0xe5/0x140 arch/x86/crypto/aesni-intel_glue.c:945
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 tls_do_encryption net/tls/tls_sw.c:234 [inline]
 tls_push_record+0x8ec/0x14d0 net/tls/tls_sw.c:270
 tls_sw_sendpage+0x446/0xc50 net/tls/tls_sw.c:617
 inet_sendpage+0x125/0x600 net/ipv4/af_inet.c:779
 kernel_sendpage+0x63/0xd0 net/socket.c:3407
 sock_sendpage+0x6d/0xd0 net/socket.c:871
 pipe_to_sendpage+0x208/0x420 fs/splice.c:451
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x2d4/0x730 fs/splice.c:626
 splice_from_pipe+0xb5/0x110 fs/splice.c:661
 generic_splice_sendpage+0x10/0x20 fs/splice.c:832
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x107/0x1c0 fs/splice.c:1018
 splice_direct_to_actor+0x27f/0x760 fs/splice.c:973
 do_splice_direct+0x144/0x250 fs/splice.c:1061
 do_sendfile+0x463/0xd00 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xf5/0x110 fs/read_write.c:1488
 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x446879
RSP: 002b:00007fe4aebebd08 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446879
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00000000006dbc20 R08: 0000000000000002 R09: 65732f636f003931
R10: 0000000000006785 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fe4aebebd10 R14: 0000000000000005 R15: 0000000000000000

Allocated by task 6116:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:551
 __do_kmalloc mm/slab.c:3720 [inline]
 __kmalloc+0x15b/0x7b0 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 kzalloc include/linux/slab.h:661 [inline]
 ops_init+0xc5/0x390 net/core/net_namespace.c:108
 setup_net+0x233/0x4f0 net/core/net_namespace.c:295
 copy_net_ns+0x16b/0x3c0 net/core/net_namespace.c:419
 create_new_namespaces+0x47a/0x750 kernel/nsproxy.c:107
 unshare_nsproxy_namespaces+0x87/0x1a0 kernel/nsproxy.c:206
 SYSC_unshare kernel/fork.c:2391 [inline]
 SyS_unshare+0x299/0x6e0 kernel/fork.c:2341
 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

Freed by task 4387:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xcc/0x270 mm/slab.c:3815
 simple_xattr_set+0x22d/0x510 fs/xattr.c:917
 shmem_xattr_handler_set+0x30/0x40 mm/shmem.c:3395
 __vfs_setxattr+0xd3/0x130 fs/xattr.c:150
 __vfs_setxattr_noperm+0xe5/0x370 fs/xattr.c:181
 vfs_setxattr+0xaa/0xe0 fs/xattr.c:224
 setxattr+0x1a0/0x250 fs/xattr.c:453
 path_setxattr+0x130/0x150 fs/xattr.c:472
 SYSC_lsetxattr fs/xattr.c:494 [inline]
 SyS_lsetxattr+0xc/0x10 fs/xattr.c:490
 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

The buggy address belongs to the object at ffff8880981f3000
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 96-byte region [ffff8880981f3000, ffff8880981f3060)
The buggy address belongs to the page:
page:ffffea0002607cc0 count:1 mapcount:0 mapping:ffff8880981f3000 index:0xffff8880981f3380
flags: 0x1fffc0000000100(slab)
raw: 01fffc0000000100 ffff8880981f3000 ffff8880981f3380 0000000100000014
raw: ffffea0002932f60 ffffea00023d3de0 ffff8880aa8004c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880981f2f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880981f2f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880981f3000: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
                                                    ^
 ffff8880981f3080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff8880981f3100: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================