ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ================================================================== BUG: KASAN: use-after-free in tty_write_room+0x76/0x80 drivers/tty/tty_ioctl.c:78 Read of size 8 at addr ffff8880319c7018 by task aoe_tx0/1229 CPU: 0 PID: 1229 Comm: aoe_tx0 Not tainted 6.0.0-rc3-syzkaller-00328-g42cf58c272ee #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x2ba/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 tty_write_room+0x76/0x80 drivers/tty/tty_ioctl.c:78 handle_tx+0x159/0x610 drivers/net/caif/caif_serial.c:226 __netdev_start_xmit include/linux/netdevice.h:4819 [inline] netdev_start_xmit include/linux/netdevice.h:4833 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x183/0x880 net/core/dev.c:3606 __dev_queue_xmit+0x2c31/0x3ad0 net/core/dev.c:4256 dev_queue_xmit include/linux/netdevice.h:3008 [inline] tx+0x6a/0xc0 drivers/block/aoe/aoenet.c:63 kthread+0x1e7/0x3b0 drivers/block/aoe/aoecmd.c:1229 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Allocated by task 26412: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:437 [inline] ____kasan_kmalloc mm/kasan/common.c:516 [inline] ____kasan_kmalloc mm/kasan/common.c:475 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:525 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] alloc_tty_struct+0x94/0x920 drivers/tty/tty_io.c:3091 tty_init_dev.part.0+0x20/0x610 drivers/tty/tty_io.c:1412 tty_init_dev include/linux/err.h:36 [inline] tty_open_by_driver drivers/tty/tty_io.c:2086 [inline] tty_open+0xb07/0xff0 drivers/tty/tty_io.c:2133 chrdev_open+0x266/0x770 fs/char_dev.c:414 do_dentry_open+0x4a4/0x13a0 fs/open.c:878 do_open fs/namei.c:3557 [inline] path_openat+0x1c92/0x28f0 fs/namei.c:3691 do_filp_open+0x1b6/0x400 fs/namei.c:3718 do_sys_openat2+0x16d/0x4c0 fs/open.c:1311 do_sys_open fs/open.c:1327 [inline] __do_sys_openat fs/open.c:1343 [inline] __se_sys_openat fs/open.c:1338 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1338 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 18950: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:367 [inline] ____kasan_slab_free+0x166/0x1c0 mm/kasan/common.c:329 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1754 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1780 slab_free mm/slub.c:3534 [inline] kfree+0xe2/0x580 mm/slub.c:4562 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 insert_work+0x48/0x350 kernel/workqueue.c:1358 __queue_work+0x625/0x1210 kernel/workqueue.c:1517 queue_work_on+0xee/0x110 kernel/workqueue.c:1545 kref_put include/linux/kref.h:65 [inline] tty_kref_put drivers/tty/tty_io.c:1570 [inline] release_tty+0x4e9/0x610 drivers/tty/tty_io.c:1606 tty_release_struct+0xb4/0xe0 drivers/tty/tty_io.c:1705 tty_release+0xc70/0x1200 drivers/tty/tty_io.c:1865 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xad5/0x29b0 kernel/exit.c:795 do_group_exit+0xd2/0x2f0 kernel/exit.c:925 get_signal+0x238c/0x2610 kernel/signal.c:2857 arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop kernel/entry/common.c:166 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 insert_work+0x48/0x350 kernel/workqueue.c:1358 __queue_work+0x625/0x1210 kernel/workqueue.c:1517 queue_work_on+0xee/0x110 kernel/workqueue.c:1545 kref_put include/linux/kref.h:65 [inline] tty_kref_put drivers/tty/tty_io.c:1570 [inline] release_tty+0x4e9/0x610 drivers/tty/tty_io.c:1606 tty_release_struct+0xb4/0xe0 drivers/tty/tty_io.c:1705 tty_release+0xc70/0x1200 drivers/tty/tty_io.c:1865 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xad5/0x29b0 kernel/exit.c:795 do_group_exit+0xd2/0x2f0 kernel/exit.c:925 get_signal+0x238c/0x2610 kernel/signal.c:2857 arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop kernel/entry/common.c:166 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff8880319c7000 which belongs to the cache kmalloc-cg-2k of size 2048 The buggy address is located 24 bytes inside of 2048-byte region [ffff8880319c7000, ffff8880319c7800) The buggy address belongs to the physical page: page:ffffea0000c67000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x319c0 head:ffffea0000c67000 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff88807e204c01 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 dead000000000100 dead000000000122 ffff88801184c140 raw: 0000000000000000 0000000000080008 00000001ffffffff ffff88807e204c01 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 3641, tgid 3641 (syz-executor.3), ts 184466341870, free_ts 0 prep_new_page mm/page_alloc.c:2532 [inline] get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4283 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2270 alloc_slab_page mm/slub.c:1824 [inline] allocate_slab+0x27e/0x3d0 mm/slub.c:1969 new_slab mm/slub.c:2029 [inline] ___slab_alloc+0x7f1/0xe10 mm/slub.c:3031 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3118 slab_alloc_node mm/slub.c:3209 [inline] slab_alloc mm/slub.c:3251 [inline] __kmalloc+0x32b/0x340 mm/slub.c:4420 kmalloc include/linux/slab.h:605 [inline] kzalloc include/linux/slab.h:733 [inline] __register_sysctl_table+0x112/0x10a0 fs/proc/proc_sysctl.c:1344 __devinet_sysctl_register+0x156/0x280 net/ipv4/devinet.c:2586 devinet_sysctl_register net/ipv4/devinet.c:2626 [inline] devinet_sysctl_register+0x160/0x230 net/ipv4/devinet.c:2616 inetdev_event+0xe8e/0x1610 net/ipv4/devinet.c:1611 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] call_netdevice_notifiers net/core/dev.c:1997 [inline] dev_change_name+0x571/0x820 net/core/dev.c:1226 do_setlink+0x19a9/0x3bb0 net/core/rtnetlink.c:2760 __rtnl_newlink+0xd6a/0x17e0 net/core/rtnetlink.c:3546 page_owner free stack trace missing Memory state around the buggy address: ffff8880319c6f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880319c6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880319c7000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880319c7080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880319c7100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================