ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ================================================================== BUG: KASAN: use-after-free in skb_update_prio net/core/dev.c:3965 [inline] BUG: KASAN: use-after-free in __dev_queue_xmit+0x5d7/0x34b0 net/core/dev.c:4227 Read of size 8 at addr ffff888012434b88 by task aoe_tx0/3254 CPU: 1 PID: 3254 Comm: aoe_tx0 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1ae/0x29f lib/dump_stack.c:105 print_address_description+0x66/0x3b0 mm/kasan/report.c:233 __kasan_report mm/kasan/report.c:419 [inline] kasan_report+0x163/0x210 mm/kasan/report.c:436 skb_update_prio net/core/dev.c:3965 [inline] __dev_queue_xmit+0x5d7/0x34b0 net/core/dev.c:4227 tx+0x6f/0x110 drivers/block/aoe/aoenet.c:63 kthread+0x231/0x460 drivers/block/aoe/aoecmd.c:1230 kthread+0x453/0x480 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Allocated by task 10934: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xcd/0x100 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc_node+0x29b/0x430 mm/slub.c:4163 kmalloc_node include/linux/slab.h:614 [inline] kvmalloc_node+0x81/0xf0 mm/util.c:587 kvmalloc include/linux/mm.h:806 [inline] kvzalloc include/linux/mm.h:814 [inline] alloc_netdev_mqs+0x85/0xc10 net/core/dev.c:10844 sixpack_open+0xe6/0x9e0 drivers/net/hamradio/6pack.c:558 tty_ldisc_open drivers/tty/tty_ldisc.c:449 [inline] tty_set_ldisc+0x530/0x950 drivers/tty/tty_ldisc.c:579 tiocsetd drivers/tty/tty_io.c:2455 [inline] tty_ioctl+0x1394/0x1720 drivers/tty/tty_io.c:2741 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 10934: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x3d/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0x10d/0x150 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1628 [inline] slab_free_freelist_hook+0x1e8/0x2a0 mm/slub.c:1653 slab_free mm/slub.c:3213 [inline] kfree+0xcf/0x2e0 mm/slub.c:4267 device_release+0x98/0x1c0 drivers/base/core.c:2188 kobject_cleanup+0x1c0/0x280 lib/kobject.c:705 netdev_run_todo+0xb39/0xcd0 net/core/dev.c:10654 unregister_netdev+0x1a0/0x210 net/core/dev.c:11153 tty_ldisc_close drivers/tty/tty_ldisc.c:474 [inline] tty_ldisc_kill drivers/tty/tty_ldisc.c:629 [inline] tty_ldisc_hangup+0x5bc/0x7e0 drivers/tty/tty_ldisc.c:749 __tty_hangup+0x4e5/0x730 drivers/tty/tty_io.c:639 tty_vhangup drivers/tty/tty_io.c:711 [inline] tty_ioctl+0x870/0x1720 drivers/tty/tty_io.c:2745 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff888012434000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 2952 bytes inside of 4096-byte region [ffff888012434000, ffff888012435000) The buggy address belongs to the page: page:ffffea0000490c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12430 head:ffffea0000490c00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea00022b6e00 0000000200000002 ffff888011042140 raw: 0000000000000000 0000000000040004 00000001ffffffff 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 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 8436, ts 249710211534, free_ts 249661742445 prep_new_page mm/page_alloc.c:2436 [inline] get_page_from_freelist+0x779/0xa30 mm/page_alloc.c:4168 __alloc_pages+0x26c/0x5f0 mm/page_alloc.c:5390 alloc_slab_page mm/slub.c:1691 [inline] allocate_slab+0xf1/0x540 mm/slub.c:1831 new_slab mm/slub.c:1894 [inline] new_slab_objects mm/slub.c:2640 [inline] ___slab_alloc+0x1cf/0x350 mm/slub.c:2803 __slab_alloc mm/slub.c:2843 [inline] slab_alloc_node mm/slub.c:2925 [inline] slab_alloc mm/slub.c:2967 [inline] __kmalloc+0x2e7/0x390 mm/slub.c:4111 kmalloc include/linux/slab.h:596 [inline] tomoyo_realpath_from_path+0xd8/0x610 security/tomoyo/realpath.c:254 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_number_perm+0x1fb/0x790 security/tomoyo/file.c:723 tomoyo_path_mkdir+0xe3/0x120 security/tomoyo/tomoyo.c:166 security_path_mkdir+0xd5/0x160 security/security.c:1140 do_mkdirat+0x1a1/0x3e0 fs/namei.c:3844 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1346 [inline] free_pcp_prepare+0xc29/0xd20 mm/page_alloc.c:1397 free_unref_page_prepare mm/page_alloc.c:3332 [inline] free_unref_page+0x7e/0x550 mm/page_alloc.c:3411 free_slab mm/slub.c:1934 [inline] discard_slab mm/slub.c:1940 [inline] unfreeze_partials+0x18c/0x1e0 mm/slub.c:2421 put_cpu_partial+0xd2/0x210 mm/slub.c:2457 __slab_free+0x3a8/0x6b0 mm/slub.c:3107 do_slab_free mm/slub.c:3201 [inline] ___cache_free+0xfc/0x120 mm/slub.c:3220 qlist_free_all mm/kasan/quarantine.c:165 [inline] kasan_quarantine_reduce+0x151/0x1c0 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:2959 [inline] slab_alloc mm/slub.c:2967 [inline] kmem_cache_alloc+0x1d1/0x340 mm/slub.c:2972 getname_flags+0xba/0x640 fs/namei.c:138 user_path_at_empty+0x28/0x50 fs/namei.c:2747 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x102/0x3d0 fs/stat.c:203 vfs_fstatat fs/stat.c:225 [inline] vfs_lstat include/linux/fs.h:3386 [inline] __do_sys_newlstat fs/stat.c:380 [inline] __se_sys_newlstat+0xab/0x770 fs/stat.c:374 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Memory state around the buggy address: ffff888012434a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888012434b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888012434b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888012434c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888012434c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================