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 ffff8880683c2020 by task aoe_tx0/1421 CPU: 3 UID: 0 PID: 1421 Comm: aoe_tx0 Not tainted 6.15.0-syzkaller-03478-gc89756bcf406 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xcd/0x680 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 tty_write_room+0x7d/0x90 drivers/tty/tty_ioctl.c:68 handle_tx+0x14f/0x630 drivers/net/caif/caif_serial.c:212 __netdev_start_xmit include/linux/netdevice.h:5204 [inline] netdev_start_xmit include/linux/netdevice.h:5213 [inline] xmit_one net/core/dev.c:3776 [inline] dev_hard_start_xmit+0x93/0x740 net/core/dev.c:3792 __dev_queue_xmit+0x7eb/0x43e0 net/core/dev.c:4629 dev_queue_xmit include/linux/netdevice.h:3350 [inline] tx+0xcc/0x190 drivers/block/aoe/aoenet.c:62 kthread+0x1e4/0x3e0 drivers/block/aoe/aoecmd.c:1237 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Allocated by task 10681: 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:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] alloc_tty_struct+0x96/0x8c0 drivers/tty/tty_io.c:3115 tty_init_dev.part.0+0x1e/0x500 drivers/tty/tty_io.c:1409 tty_init_dev+0x60/0x80 drivers/tty/tty_io.c:1406 ptmx_open drivers/tty/pty.c:824 [inline] ptmx_open+0x10d/0x360 drivers/tty/pty.c:790 chrdev_open+0x234/0x6a0 fs/char_dev.c:414 do_dentry_open+0x741/0x1c10 fs/open.c:964 vfs_open+0x82/0x3f0 fs/open.c:1094 do_open fs/namei.c:3887 [inline] path_openat+0x1de4/0x2cb0 fs/namei.c:4046 do_filp_open+0x20b/0x470 fs/namei.c:4073 do_sys_openat2+0x11b/0x1d0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_compat_sys_openat fs/open.c:1514 [inline] __se_compat_sys_openat fs/open.c:1512 [inline] __ia32_compat_sys_openat+0x16d/0x210 fs/open.c:1512 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x7c/0x3a0 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Freed by task 5981: 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:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2380 [inline] slab_free mm/slub.c:4642 [inline] kfree+0x2b4/0x4d0 mm/slub.c:4841 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Last potentially related work creation: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:548 insert_work+0x36/0x230 kernel/workqueue.c:2183 __queue_work+0x97e/0x10f0 kernel/workqueue.c:2341 queue_work_on+0x1a4/0x1f0 kernel/workqueue.c:2392 kref_put include/linux/kref.h:65 [inline] tty_kref_put drivers/tty/tty_io.c:1566 [inline] tty_kref_put drivers/tty/tty_io.c:1563 [inline] release_tty+0x4de/0x5d0 drivers/tty/tty_io.c:1602 tty_release_struct+0xb7/0xe0 drivers/tty/tty_io.c:1701 tty_release+0xe2d/0x1430 drivers/tty/tty_io.c:1861 __fput+0x3ff/0xb70 fs/file_table.c:465 task_work_run+0x14d/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xae2/0x2c70 kernel/exit.c:959 do_group_exit+0xd3/0x2a0 kernel/exit.c:1108 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] __do_fast_syscall_32+0x2ac/0x3a0 arch/x86/entry/syscall_32.c:309 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e The buggy address belongs to the object at ffff8880683c2000 which belongs to the cache kmalloc-cg-2k of size 2048 The buggy address is located 32 bytes inside of freed 2048-byte region [ffff8880683c2000, ffff8880683c2800) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880683c2000 pfn:0x683c0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff88806b18d801 flags: 0x4fff00000000240(workingset|head|node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000240 ffff88801b44c140 ffffea000137a410 ffffea0001a6cc10 raw: ffff8880683c2000 0000000000080005 00000000f5000000 ffff88806b18d801 head: 04fff00000000240 ffff88801b44c140 ffffea000137a410 ffffea0001a6cc10 head: ffff8880683c2000 0000000000080005 00000000f5000000 ffff88806b18d801 head: 04fff00000000003 ffffea0001a0f001 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 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 5945, tgid 5945 (syz-executor), ts 190972573136, free_ts 190962702093 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1714 prep_new_page mm/page_alloc.c:1722 [inline] get_page_from_freelist+0x135c/0x3950 mm/page_alloc.c:3684 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4974 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301 alloc_slab_page mm/slub.c:2450 [inline] allocate_slab mm/slub.c:2618 [inline] new_slab+0x23b/0x330 mm/slub.c:2672 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3858 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3948 __slab_alloc_node mm/slub.c:4023 [inline] slab_alloc_node mm/slub.c:4184 [inline] __do_kmalloc_node mm/slub.c:4326 [inline] __kvmalloc_node_noprof+0x3af/0x620 mm/slub.c:5012 xt_alloc_table_info+0x3e/0xa0 net/netfilter/x_tables.c:1193 translate_compat_table+0xbf7/0x18d0 net/ipv6/netfilter/ip6_tables.c:1444 compat_do_replace+0x255/0x3c0 net/ipv4/netfilter/ip_tables.c:1525 do_ip6t_set_ctl+0x55d/0xa70 net/ipv6/netfilter/ip6_tables.c:1641 nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101 ipv6_setsockopt+0x135/0x170 net/ipv6/ipv6_sockglue.c:998 tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4077 do_sock_setsockopt+0x221/0x470 net/socket.c:2296 page last free pid 23 tgid 23 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1258 [inline] __free_frozen_pages+0x7f8/0x1180 mm/page_alloc.c:2721 __folio_put+0x329/0x450 mm/swap.c:112 folio_put include/linux/mm.h:1580 [inline] put_page include/linux/mm.h:1649 [inline] skb_page_unref include/linux/skbuff_ref.h:43 [inline] __skb_frag_unref include/linux/skbuff_ref.h:56 [inline] skb_release_data+0x618/0x960 net/core/skbuff.c:1091 skb_release_all net/core/skbuff.c:1162 [inline] __kfree_skb net/core/skbuff.c:1176 [inline] napi_consume_skb+0x1b7/0x220 net/core/skbuff.c:1486 e1000_unmap_and_free_tx_resource+0x144/0x200 drivers/net/ethernet/intel/e1000/e1000_main.c:1972 e1000_clean_tx_irq drivers/net/ethernet/intel/e1000/e1000_main.c:3864 [inline] e1000_clean+0x4a0/0x2670 drivers/net/ethernet/intel/e1000/e1000_main.c:3805 __napi_poll.constprop.0+0xba/0x550 net/core/dev.c:7324 napi_poll net/core/dev.c:7388 [inline] net_rx_action+0xa97/0x1010 net/core/dev.c:7510 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579 run_ksoftirqd kernel/softirq.c:968 [inline] run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960 smpboot_thread_fn+0x3f4/0xae0 kernel/smpboot.c:164 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff8880683c1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880683c1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880683c2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880683c2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880683c2100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================