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BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3212 [inline]
BUG: KASAN: double-free or invalid-free in kfree+0xc3/0x290 mm/slub.c:4200

CPU: 0 PID: 9486 Comm: syz-executor.1 Not tainted 5.10.134-syzkaller-01772-gf6ce9a9115d5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3c0 mm/kasan/report.c:233
 kasan_report_invalid_free+0x58/0x90 mm/kasan/report.c:358
 ____kasan_slab_free+0x139/0x160 mm/kasan/common.c:362
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:368
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1604 [inline]
 slab_free_freelist_hook+0xcc/0x1a0 mm/slub.c:1630
 slab_free mm/slub.c:3212 [inline]
 kfree+0xc3/0x290 mm/slub.c:4200
 selinux_tun_dev_free_security+0x15/0x20 security/selinux/hooks.c:5530
 security_tun_dev_free_security+0x4d/0x90 security/security.c:2263
 tun_free_netdev+0xbd/0x1c0 drivers/net/tun.c:2277
 netdev_run_todo+0xbcd/0xe10 net/core/dev.c:10304
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112
 __tun_chr_ioctl+0x8ca/0x2130 drivers/net/tun.c:3362
 tun_chr_ioctl+0x2a/0x40 drivers/net/tun.c:3371
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x115/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f6c7fb7c279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6c7ec8f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6c7fc8f1f0 RCX: 00007f6c7fb7c279
RDX: 0000000020000080 RSI: 00000000400454ca RDI: 0000000000000003
RBP: 00007f6c7fbd6189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf8be120f R14: 00007f6c7ec8f300 R15: 0000000000022000

Allocated by task 9486:
 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:428 [inline]
 ____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:507
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:516
 kasan_kmalloc include/linux/kasan.h:269 [inline]
 kmem_cache_alloc_trace+0x1dd/0x330 mm/slub.c:2983
 kmalloc include/linux/slab.h:552 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 selinux_tun_dev_alloc_security+0x51/0x140 security/selinux/hooks.c:5519
 security_tun_dev_alloc_security+0x50/0xb0 security/security.c:2257
 tun_set_iff+0x944/0x1100 drivers/net/tun.c:2795
 __tun_chr_ioctl+0x8ab/0x2130 drivers/net/tun.c:3095
 tun_chr_ioctl+0x2a/0x40 drivers/net/tun.c:3371
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x115/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6

Freed by task 9486:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:357
 ____kasan_slab_free+0x121/0x160 mm/kasan/common.c:360
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:368
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1604 [inline]
 slab_free_freelist_hook+0xcc/0x1a0 mm/slub.c:1630
 slab_free mm/slub.c:3212 [inline]
 kfree+0xc3/0x290 mm/slub.c:4200
 selinux_tun_dev_free_security+0x15/0x20 security/selinux/hooks.c:5530
 security_tun_dev_free_security+0x4d/0x90 security/security.c:2263
 tun_set_iff+0xc98/0x1100 drivers/net/tun.c:2850
 __tun_chr_ioctl+0x8ab/0x2130 drivers/net/tun.c:3095
 tun_chr_ioctl+0x2a/0x40 drivers/net/tun.c:3371
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x115/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6

The buggy address belongs to the object at ffff8881059a4aa0
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
 8-byte region [ffff8881059a4aa0, ffff8881059a4aa8)
The buggy address belongs to the page:
page:ffffea0004166900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059a4
flags: 0x8000000000000200(slab)
raw: 8000000000000200 ffffea0004509f00 0000000c0000000c ffff888100043c80
raw: 0000000000000000 0000000080660066 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 1280547958, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2385 [inline]
 prep_new_page mm/page_alloc.c:2391 [inline]
 get_page_from_freelist+0x745/0x760 mm/page_alloc.c:4067
 __alloc_pages_nodemask+0x3b6/0x890 mm/page_alloc.c:5117
 alloc_slab_page mm/slub.c:1815 [inline]
 allocate_slab+0x78/0x540 mm/slub.c:1817
 new_slab mm/slub.c:1878 [inline]
 new_slab_objects mm/slub.c:2636 [inline]
 ___slab_alloc+0x131/0x2e0 mm/slub.c:2800
 __slab_alloc+0x63/0xa0 mm/slub.c:2840
 slab_alloc_node mm/slub.c:2922 [inline]
 slab_alloc mm/slub.c:2964 [inline]
 __kmalloc+0x24f/0x360 mm/slub.c:4038
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 acpi_os_allocate_zeroed include/acpi/platform/aclinuxex.h:57 [inline]
 acpi_ns_internalize_name+0x178/0x295 drivers/acpi/acpica/nsutils.c:331
 acpi_ns_get_node_unlocked+0x18b/0x35c drivers/acpi/acpica/nsutils.c:666
 acpi_ns_get_node+0x54/0x70 drivers/acpi/acpica/nsutils.c:726
 acpi_ns_evaluate+0x36a/0xa10 drivers/acpi/acpica/nseval.c:62
 acpi_evaluate_object+0x58d/0xac6 drivers/acpi/acpica/nsxfeval.c:354
 acpi_evaluate_integer+0x112/0x230 drivers/acpi/utils.c:279
 acpi_bus_get_status_handle drivers/acpi/bus.c:83 [inline]
 acpi_bus_get_status+0x14e/0x250 drivers/acpi/bus.c:112
 acpi_bus_attach+0x23b/0xc90 drivers/acpi/scan.c:2014
 acpi_bus_attach+0x2d9/0xc90 drivers/acpi/scan.c:2057
 acpi_bus_attach+0x2d9/0xc90 drivers/acpi/scan.c:2057
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881059a4980: fc fa fc fc fc fc fa fc fc fc fc fa fc fc fc fc
 ffff8881059a4a00: fa fc fc fc fc fa fc fc fc fc fa fc fc fc fc fa
>ffff8881059a4a80: fc fc fc fc fa fc fc fc fc fb fc fc fc fc fa fc
                               ^
 ffff8881059a4b00: fc fc fc fa fc fc fc fc fa fc fc fc fc fa fc fc
 ffff8881059a4b80: fc fc fa fc fc fc fc fa fc fc fc fc fa fc fc fc
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