ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ================================================================== BUG: KASAN: slab-use-after-free in tty_write_room+0x35/0x90 drivers/tty/tty_ioctl.c:68 Read of size 8 at addr ffff88801f7e6020 by task aoe_tx0/1238 CPU: 1 PID: 1238 Comm: aoe_tx0 Not tainted 6.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0x167/0x540 mm/kasan/report.c:488 kasan_report+0x142/0x180 mm/kasan/report.c:601 tty_write_room+0x35/0x90 drivers/tty/tty_ioctl.c:68 handle_tx+0x164/0x640 drivers/net/caif/caif_serial.c:226 __netdev_start_xmit include/linux/netdevice.h:4986 [inline] netdev_start_xmit include/linux/netdevice.h:5000 [inline] xmit_one net/core/dev.c:3547 [inline] dev_hard_start_xmit+0x244/0x770 net/core/dev.c:3563 __dev_queue_xmit+0x19f4/0x3b10 net/core/dev.c:4351 dev_queue_xmit include/linux/netdevice.h:3169 [inline] tx+0x6a/0x110 drivers/block/aoe/aoenet.c:62 kthread+0x23b/0x440 drivers/block/aoe/aoecmd.c:1229 kthread+0x2f1/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243 Allocated by task 8605: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace+0x1d6/0x360 mm/slub.c:4012 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:711 [inline] alloc_tty_struct+0xa9/0x7d0 drivers/tty/tty_io.c:3116 tty_init_dev+0x5b/0x4c0 drivers/tty/tty_io.c:1415 ptmx_open+0xda/0x2c0 drivers/tty/pty.c:824 chrdev_open+0x5b2/0x630 fs/char_dev.c:414 do_dentry_open+0x909/0x15a0 fs/open.c:953 do_open fs/namei.c:3645 [inline] path_openat+0x285f/0x3240 fs/namei.c:3802 do_filp_open+0x234/0x490 fs/namei.c:3829 do_sys_openat2+0x13e/0x1d0 fs/open.c:1404 do_sys_open fs/open.c:1419 [inline] __do_sys_openat fs/open.c:1435 [inline] __se_sys_openat fs/open.c:1430 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1430 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 Freed by task 5161: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:589 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x14a/0x380 mm/slub.c:4409 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x915/0x1420 kernel/workqueue.c:2706 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787 kthread+0x2f1/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243 Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:551 insert_work+0x3e/0x330 kernel/workqueue.c:1653 __queue_work+0xbf4/0x1000 kernel/workqueue.c:1802 queue_work_on+0x14f/0x250 kernel/workqueue.c:1837 tty_release_struct+0xbc/0xe0 drivers/tty/tty_io.c:1707 tty_release+0xd0c/0x12c0 drivers/tty/tty_io.c:1867 __fput+0x42b/0x8a0 fs/file_table.c:376 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x7e/0x110 fs/open.c:1539 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 The buggy address belongs to the object at ffff88801f7e6000 which belongs to the cache kmalloc-cg-2k of size 2048 The buggy address is located 32 bytes inside of freed 2048-byte region [ffff88801f7e6000, ffff88801f7e6800) The buggy address belongs to the physical page: page:ffffea00007df800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801f7e5000 pfn:0x1f7e0 head:ffffea00007df800 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff8880217f6b81 flags: 0xfff00000000a40(workingset|slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000a40 ffff888014c4f3c0 ffffea0001ae3e10 ffffea0001ac3610 raw: ffff88801f7e5000 0000000000080006 00000001ffffffff ffff8880217f6b81 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5098, tgid 5098 (syz-executor.4), ts 200401248275, free_ts 200027547453 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311 __alloc_pages+0x255/0x680 mm/page_alloc.c:4569 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page+0x5f/0x160 mm/slub.c:2190 allocate_slab mm/slub.c:2354 [inline] new_slab+0x84/0x2f0 mm/slub.c:2407 ___slab_alloc+0xd17/0x13e0 mm/slub.c:3540 __slab_alloc mm/slub.c:3625 [inline] __slab_alloc_node mm/slub.c:3678 [inline] slab_alloc_node mm/slub.c:3850 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc_node+0x2d6/0x4e0 mm/slub.c:3988 kmalloc_node include/linux/slab.h:610 [inline] kvmalloc_node+0x72/0x190 mm/util.c:617 kvmalloc include/linux/slab.h:728 [inline] kvmalloc_array include/linux/slab.h:746 [inline] alloc_fdtable+0xe7/0x280 fs/file.c:136 dup_fd+0x839/0xc50 fs/file.c:354 copy_files+0x14f/0x2a0 kernel/fork.c:1789 copy_process+0x1c14/0x3fc0 kernel/fork.c:2485 kernel_clone+0x21d/0x8d0 kernel/fork.c:2902 __do_sys_clone kernel/fork.c:3045 [inline] __se_sys_clone kernel/fork.c:3029 [inline] __x64_sys_clone+0x258/0x2a0 kernel/fork.c:3029 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 page last free pid 5111 tgid 5111 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486 __slab_free+0x349/0x410 mm/slub.c:4211 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3813 [inline] slab_alloc_node mm/slub.c:3860 [inline] kmem_cache_alloc_lru+0x172/0x350 mm/slub.c:3879 alloc_inode_sb include/linux/fs.h:3018 [inline] alloc_inode fs/inode.c:262 [inline] new_inode_pseudo+0x8b/0x1e0 fs/inode.c:1005 new_inode+0x22/0x1d0 fs/inode.c:1031 debugfs_get_inode fs/debugfs/inode.c:72 [inline] __debugfs_create_file+0x14d/0x490 fs/debugfs/inode.c:437 add_sta_files net/mac80211/debugfs_netdev.c:850 [inline] add_files net/mac80211/debugfs_netdev.c:959 [inline] ieee80211_debugfs_add_netdev net/mac80211/debugfs_netdev.c:1012 [inline] ieee80211_debugfs_recreate_netdev+0xc5a/0x1400 net/mac80211/debugfs_netdev.c:1045 ieee80211_if_add+0x988/0x1770 net/mac80211/iface.c:2169 ieee80211_register_hw+0x2fc7/0x3b80 net/mac80211/main.c:1418 mac80211_hwsim_new_radio+0x250e/0x4400 drivers/net/wireless/virtual/mac80211_hwsim.c:5329 hwsim_new_radio_nl+0xe4c/0x21d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6010 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0xad8/0xe50 net/netlink/genetlink.c:1208 Memory state around the buggy address: ffff88801f7e5f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88801f7e5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88801f7e6000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801f7e6080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801f7e6100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================