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BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3513 [inline]
BUG: KASAN: double-free or invalid-free in kfree+0xf6/0x560 mm/slub.c:4561

CPU: 0 PID: 8109 Comm: syz-executor016 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247
 kasan_report_invalid_free+0x51/0x80 mm/kasan/report.c:372
 ____kasan_slab_free mm/kasan/common.c:346 [inline]
 __kasan_slab_free+0x124/0x130 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1723 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
 slab_free mm/slub.c:3513 [inline]
 kfree+0xf6/0x560 mm/slub.c:4561
 packet_set_ring+0xfa6/0x1b20 net/packet/af_packet.c:4491
 packet_setsockopt+0x1bd3/0x3c10 net/packet/af_packet.c:3781
 __sys_setsockopt+0x2db/0x610 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184
 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+0x44/0xae
RIP: 0033:0x7f5274a18859
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 00 00 90 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f52749a0208 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f5274a9a498 RCX: 00007f5274a18859
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003
RBP: 00007f5274a9a490 R08: 000000000000001c R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f5274a9a49c
R13: 00007ffd09f07d3f R14: 00007f52749a0300 R15: 0000000000022000
 </TASK>

Allocated by task 8108:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 ____kasan_kmalloc mm/kasan/common.c:472 [inline]
 __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:522
 kmalloc_array include/linux/slab.h:630 [inline]
 kcalloc include/linux/slab.h:661 [inline]
 alloc_pg_vec net/packet/af_packet.c:4313 [inline]
 packet_set_ring+0xa76/0x1b20 net/packet/af_packet.c:4403
 packet_setsockopt+0x1bd3/0x3c10 net/packet/af_packet.c:3781
 __sys_setsockopt+0x2db/0x610 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184
 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+0x44/0xae

Freed by task 8108:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free mm/kasan/common.c:328 [inline]
 __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1723 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
 slab_free mm/slub.c:3513 [inline]
 kfree+0xf6/0x560 mm/slub.c:4561
 packet_set_ring+0x6c7/0x1b20 net/packet/af_packet.c:4493
 packet_setsockopt+0x1bd3/0x3c10 net/packet/af_packet.c:3781
 __sys_setsockopt+0x2db/0x610 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184
 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+0x44/0xae

The buggy address belongs to the object at ffff888022226000
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 0 bytes inside of
 64-byte region [ffff888022226000, ffff888022226040)
The buggy address belongs to the page:
page:ffffea0000888980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22226
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 dead000000000100 dead000000000122 ffff888010c41640
raw: 0000000000000000 0000000080200020 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 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 2974, ts 18691008845, free_ts 17169017097
 prep_new_page mm/page_alloc.c:2418 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
 alloc_slab_page mm/slub.c:1793 [inline]
 allocate_slab mm/slub.c:1930 [inline]
 new_slab+0x32d/0x4a0 mm/slub.c:1993
 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
 slab_alloc_node mm/slub.c:3200 [inline]
 slab_alloc mm/slub.c:3242 [inline]
 __kmalloc+0x2fb/0x340 mm/slub.c:4419
 kmalloc include/linux/slab.h:595 [inline]
 kzalloc include/linux/slab.h:724 [inline]
 tomoyo_encode2.part.0+0xe9/0x3a0 security/tomoyo/realpath.c:45
 tomoyo_encode2 security/tomoyo/realpath.c:31 [inline]
 tomoyo_encode+0x28/0x50 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x186/0x620 security/tomoyo/realpath.c:288
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_check_open_permission+0x272/0x380 security/tomoyo/file.c:771
 tomoyo_file_open security/tomoyo/tomoyo.c:311 [inline]
 tomoyo_file_open+0xa3/0xd0 security/tomoyo/tomoyo.c:306
 security_file_open+0x45/0xb0 security/security.c:1635
 do_dentry_open+0x353/0x1250 fs/open.c:809
 do_open fs/namei.c:3426 [inline]
 path_openat+0x1cad/0x2750 fs/namei.c:3559
 do_filp_open+0x1aa/0x400 fs/namei.c:3586
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1338 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389
 free_unref_page_prepare mm/page_alloc.c:3309 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3388
 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:380
 apply_to_pte_range mm/memory.c:2518 [inline]
 apply_to_pmd_range mm/memory.c:2562 [inline]
 apply_to_pud_range mm/memory.c:2598 [inline]
 apply_to_p4d_range mm/memory.c:2634 [inline]
 __apply_to_page_range+0x694/0x1080 mm/memory.c:2668
 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:490
 __purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1708
 _vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2111
 _vm_unmap_aliases mm/vmalloc.c:2085 [inline]
 vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2134
 change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1743
 change_page_attr_set arch/x86/mm/pat/set_memory.c:1793 [inline]
 set_memory_nx+0xb2/0x110 arch/x86/mm/pat/set_memory.c:1941
 free_init_pages+0x73/0xc0 arch/x86/mm/init.c:894
 kernel_init+0x2e/0x1d0 init/main.c:1508
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Memory state around the buggy address:
 ffff888022225f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888022225f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888022226000: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                   ^
 ffff888022226080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888022226100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
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