Bluetooth: hci0: advertising data len corrected
Bluetooth: hci0: advertising data len corrected
Bluetooth: hci0: advertising data len corrected
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BUG: KASAN: slab-out-of-bounds in hci_le_ext_adv_report_evt net/bluetooth/hci_event.c:5472 [inline]
BUG: KASAN: slab-out-of-bounds in hci_le_meta_evt+0x383e/0x3f20 net/bluetooth/hci_event.c:5714
Read of size 1 at addr ffff888090343606 by task kworker/u5:4/8132

CPU: 1 PID: 8132 Comm: kworker/u5:4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: hci0 hci_rx_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load1_noabort+0x88/0x90 mm/kasan/report.c:430
 hci_le_ext_adv_report_evt net/bluetooth/hci_event.c:5472 [inline]
 hci_le_meta_evt+0x383e/0x3f20 net/bluetooth/hci_event.c:5714
 hci_event_packet+0x34ad/0x7e20 net/bluetooth/hci_event.c:5959
 hci_rx_work+0x4ad/0xc70 net/bluetooth/hci_core.c:4380
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Allocated by task 26636:
 __do_kmalloc_node mm/slab.c:3689 [inline]
 __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703
 __kmalloc_reserve net/core/skbuff.c:137 [inline]
 __alloc_skb+0xae/0x560 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:995 [inline]
 bt_skb_alloc include/net/bluetooth/bluetooth.h:339 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:180 [inline]
 vhci_write+0xbd/0x450 drivers/bluetooth/hci_vhci.c:299
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 25682:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 skb_free_head net/core/skbuff.c:563 [inline]
 skb_release_data+0x6de/0x920 net/core/skbuff.c:583
 skb_release_all net/core/skbuff.c:640 [inline]
 __kfree_skb net/core/skbuff.c:654 [inline]
 kfree_skb+0x11a/0x3d0 net/core/skbuff.c:672
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1256 [inline]
 tipc_sk_proto_rcv net/tipc/socket.c:1985 [inline]
 tipc_sk_filter_rcv+0x12e3/0x1cb0 net/tipc/socket.c:2161
 tipc_sk_backlog_rcv+0xd4/0x1c0 net/tipc/socket.c:2205
 sk_backlog_rcv include/net/sock.h:952 [inline]
 __release_sock+0x134/0x3a0 net/core/sock.c:2362
 release_sock+0x54/0x1b0 net/core/sock.c:2901
 __tipc_sendstream+0x2f9/0x9d0 net/tipc/socket.c:1449
 tipc_sendstream+0x4c/0x70 net/tipc/socket.c:1414
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff888090343200
 which belongs to the cache kmalloc-1024 of size 1024
The buggy address is located 6 bytes to the right of
 1024-byte region [ffff888090343200, ffff888090343600)
The buggy address belongs to the page:
page:ffffea000240d080 count:1 mapcount:0 mapping:ffff88813bff0ac0 index:0xffff888090342000 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffffea00024a4688 ffffea0002409708 ffff88813bff0ac0
raw: ffff888090342000 ffff888090342000 0000000100000004 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888090343500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888090343580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888090343600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff888090343680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888090343700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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