ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
==================================================================
BUG: KASAN: slab-use-after-free in tty_write_room+0x7d/0x90 drivers/tty/tty_ioctl.c:68
Read of size 8 at addr ffff8880594cf020 by task aoe_tx0/1354

CPU: 3 PID: 1354 Comm: aoe_tx0 Not tainted 6.9.0-syzkaller-12277-g56fb6f92854f #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:488
 kasan_report+0xd9/0x110 mm/kasan/report.c:601
 tty_write_room+0x7d/0x90 drivers/tty/tty_ioctl.c:68
 handle_tx+0x151/0x630 drivers/net/caif/caif_serial.c:226
 __netdev_start_xmit include/linux/netdevice.h:4882 [inline]
 netdev_start_xmit include/linux/netdevice.h:4896 [inline]
 xmit_one net/core/dev.c:3578 [inline]
 dev_hard_start_xmit+0x143/0x790 net/core/dev.c:3594
 __dev_queue_xmit+0x7ba/0x4130 net/core/dev.c:4393
 dev_queue_xmit include/linux/netdevice.h:3095 [inline]
 tx+0xcc/0x190 drivers/block/aoe/aoenet.c:62
 kthread+0x1e7/0x3c0 drivers/block/aoe/aoecmd.c:1229
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 9223:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
 kmalloc_noprof include/linux/slab.h:660 [inline]
 kzalloc_noprof include/linux/slab.h:778 [inline]
 alloc_tty_struct+0x98/0x8d0 drivers/tty/tty_io.c:3116
 tty_init_dev.part.0+0x1e/0x660 drivers/tty/tty_io.c:1415
 tty_init_dev+0x60/0x80 drivers/tty/tty_io.c:1412
 ptmx_open drivers/tty/pty.c:824 [inline]
 ptmx_open+0x104/0x350 drivers/tty/pty.c:790
 chrdev_open+0x26d/0x6f0 fs/char_dev.c:414
 do_dentry_open+0x910/0x1930 fs/open.c:955
 do_open fs/namei.c:3650 [inline]
 path_openat+0x1e3a/0x29f0 fs/namei.c:3807
 do_filp_open+0x1dc/0x430 fs/namei.c:3834
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_compat_sys_openat fs/open.c:1480 [inline]
 __se_compat_sys_openat fs/open.c:1478 [inline]
 __ia32_compat_sys_openat+0x16e/0x210 fs/open.c:1478
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Freed by task 968:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
 poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
 __kasan_slab_free+0x32/0x50 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2195 [inline]
 slab_free mm/slub.c:4436 [inline]
 kfree+0x12a/0x3b0 mm/slub.c:4557
 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Last potentially related work creation:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:541
 insert_work+0x36/0x230 kernel/workqueue.c:2207
 __queue_work+0x944/0x1020 kernel/workqueue.c:2359
 queue_work_on+0x11a/0x140 kernel/workqueue.c:2410
 kref_put include/linux/kref.h:65 [inline]
 tty_kref_put drivers/tty/tty_io.c:1572 [inline]
 tty_kref_put drivers/tty/tty_io.c:1569 [inline]
 release_tty+0x4e1/0x600 drivers/tty/tty_io.c:1608
 tty_release_struct+0xb7/0xe0 drivers/tty/tty_io.c:1707
 tty_release+0xe33/0x1420 drivers/tty/tty_io.c:1867
 __fput+0x408/0xbb0 fs/file_table.c:422
 __fput_sync+0x47/0x50 fs/file_table.c:507
 __do_sys_close fs/open.c:1555 [inline]
 __se_sys_close fs/open.c:1540 [inline]
 __ia32_sys_close+0x86/0x100 fs/open.c:1540
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

The buggy address belongs to the object at ffff8880594cf000
 which belongs to the cache kmalloc-cg-2k of size 2048
The buggy address is located 32 bytes inside of
 freed 2048-byte region [ffff8880594cf000, ffff8880594cf800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880594cb000 pfn:0x594c8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888055378f01
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 04fff00000000040 ffff888015450140 ffffea0000a2c000 dead000000000002
raw: ffff8880594cb000 0000000000080006 00000001ffffefff ffff888055378f01
head: 04fff00000000040 ffff888015450140 ffffea0000a2c000 dead000000000002
head: ffff8880594cb000 0000000000080006 00000001ffffefff ffff888055378f01
head: 04fff00000000003 ffffea0001653201 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5233, tgid 5233 (syz-executor.3), ts 55330799517, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1468
 prep_new_page mm/page_alloc.c:1476 [inline]
 get_page_from_freelist+0x136a/0x2df0 mm/page_alloc.c:3402
 __alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4660
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_slab_page+0x56/0x110 mm/slub.c:2264
 allocate_slab mm/slub.c:2427 [inline]
 new_slab+0x84/0x260 mm/slub.c:2480
 ___slab_alloc+0xdac/0x1870 mm/slub.c:3666
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3756
 __slab_alloc_node mm/slub.c:3809 [inline]
 slab_alloc_node mm/slub.c:3988 [inline]
 __do_kmalloc_node mm/slub.c:4120 [inline]
 kmalloc_node_track_caller_noprof+0x365/0x440 mm/slub.c:4141
 kmemdup_noprof+0x29/0x60 mm/util.c:131
 neigh_sysctl_register+0xb3/0x640 net/core/neighbour.c:3800
 addrconf_sysctl_register+0xb9/0x1f0 net/ipv6/addrconf.c:7259
 ipv6_add_dev+0xa13/0x1400 net/ipv6/addrconf.c:456
 addrconf_notify+0x546/0x19e0 net/ipv6/addrconf.c:3652
 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1992
 call_netdevice_notifiers_extack net/core/dev.c:2030 [inline]
 call_netdevice_notifiers net/core/dev.c:2044 [inline]
 register_netdevice+0x1583/0x1c40 net/core/dev.c:10407
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8880594cef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880594cef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880594cf000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff8880594cf080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880594cf100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================