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BUG: KASAN: invalid-free in slab_free mm/slub.c:3787 [inline]
BUG: KASAN: invalid-free in kmem_cache_free+0xec/0x4e0 mm/slub.c:3809
Free of addr ffff88808294a000 by task syz-executor.5/29355

CPU: 0 PID: 29355 Comm: syz-executor.5 Not tainted 6.2.0-syzkaller-13277-g2eb29d59ddf0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:319
 print_report mm/kasan/report.c:430 [inline]
 kasan_report_invalid_free+0xe8/0x100 mm/kasan/report.c:501
 ____kasan_slab_free+0x1a5/0x1c0 mm/kasan/common.c:216
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1807
 slab_free mm/slub.c:3787 [inline]
 kmem_cache_free+0xec/0x4e0 mm/slub.c:3809
 skb_kfree_head net/core/skbuff.c:857 [inline]
 skb_kfree_head net/core/skbuff.c:853 [inline]
 skb_free_head+0x16f/0x1a0 net/core/skbuff.c:872
 skb_release_data+0x57a/0x820 net/core/skbuff.c:901
 skb_release_all net/core/skbuff.c:966 [inline]
 __kfree_skb+0x4f/0x70 net/core/skbuff.c:980
 tcp_wmem_free_skb include/net/tcp.h:302 [inline]
 tcp_rtx_queue_unlink_and_free include/net/tcp.h:1938 [inline]
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3334 [inline]
 tcp_ack+0x1e0a/0x5a10 net/ipv4/tcp_input.c:3884
 tcp_rcv_established+0x667/0x22a0 net/ipv4/tcp_input.c:6006
 tcp_v4_do_rcv+0x663/0x9d0 net/ipv4/tcp_ipv4.c:1721
 sk_backlog_rcv include/net/sock.h:1113 [inline]
 __release_sock+0x133/0x3b0 net/core/sock.c:2921
 release_sock+0x58/0x1b0 net/core/sock.c:3488
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1485
 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:825
 sock_sendmsg_nosec net/socket.c:722 [inline]
 sock_sendmsg+0xde/0x190 net/socket.c:745
 sock_write_iter+0x295/0x3d0 net/socket.c:1136
 call_write_iter include/linux/fs.h:1851 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xe10 fs/read_write.c:584
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9c1fc8c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9c20a90168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9c1fdabf80 RCX: 00007f9c1fc8c0f9
RDX: 0000000000000878 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f9c20a901d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd326dd28f R14: 00007f9c20a90300 R15: 0000000000022000
 </TASK>

Allocated by task 29355:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 ____kasan_kmalloc mm/kasan/common.c:333 [inline]
 __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:196 [inline]
 __do_kmalloc_node mm/slab_common.c:967 [inline]
 __kmalloc_node_track_caller+0x5b/0xc0 mm/slab_common.c:987
 kmalloc_reserve+0xf1/0x230 net/core/skbuff.c:539
 pskb_expand_head+0x237/0x1160 net/core/skbuff.c:1995
 __skb_unclone_keeptruesize+0x93/0x220 net/core/skbuff.c:2094
 skb_unclone_keeptruesize include/linux/skbuff.h:1910 [inline]
 tcp_trim_head+0x371/0x5d0 net/ipv4/tcp_output.c:1667
 tcp_tso_acked net/ipv4/tcp_input.c:3204 [inline]
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3270 [inline]
 tcp_ack+0x34c7/0x5a10 net/ipv4/tcp_input.c:3884
 tcp_rcv_established+0x667/0x22a0 net/ipv4/tcp_input.c:6006
 tcp_v4_do_rcv+0x663/0x9d0 net/ipv4/tcp_ipv4.c:1721
 sk_backlog_rcv include/net/sock.h:1113 [inline]
 __release_sock+0x133/0x3b0 net/core/sock.c:2921
 release_sock+0x58/0x1b0 net/core/sock.c:3488
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1485
 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:825
 sock_sendmsg_nosec net/socket.c:722 [inline]
 sock_sendmsg+0xde/0x190 net/socket.c:745
 sock_write_iter+0x295/0x3d0 net/socket.c:1136
 call_write_iter include/linux/fs.h:1851 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xe10 fs/read_write.c:584
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff88808294a000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 0 bytes inside of
 1024-byte region [ffff88808294a000, ffff88808294a400)

The buggy address belongs to the physical page:
page:ffffea00020a5200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x82948
head:ffffea00020a5200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffff888012441dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000080100010 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 0x152820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5122, tgid 5122 (syz-executor.5), ts 306915567333, free_ts 0
 prep_new_page mm/page_alloc.c:2552 [inline]
 get_page_from_freelist+0x1190/0x2f80 mm/page_alloc.c:4325
 __alloc_pages+0x1cb/0x5c0 mm/page_alloc.c:5591
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2283
 alloc_slab_page mm/slub.c:1851 [inline]
 allocate_slab+0x25f/0x390 mm/slub.c:1998
 new_slab mm/slub.c:2051 [inline]
 ___slab_alloc+0xa91/0x1400 mm/slub.c:3193
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3292
 __slab_alloc_node mm/slub.c:3345 [inline]
 slab_alloc_node mm/slub.c:3442 [inline]
 __kmem_cache_alloc_node+0x136/0x330 mm/slub.c:3491
 kmalloc_trace+0x26/0x60 mm/slab_common.c:1061
 kmalloc include/linux/slab.h:580 [inline]
 kzalloc include/linux/slab.h:720 [inline]
 batadv_hardif_add_interface net/batman-adv/hard-interface.c:864 [inline]
 batadv_hard_if_event+0x92e/0x15e0 net/batman-adv/hard-interface.c:952
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1937
 call_netdevice_notifiers_extack net/core/dev.c:1975 [inline]
 call_netdevice_notifiers net/core/dev.c:1989 [inline]
 register_netdevice+0xfb4/0x1640 net/core/dev.c:10079
 cfg80211_register_netdevice+0x157/0x330 net/wireless/core.c:1397
 ieee80211_if_add+0x1096/0x1970 net/mac80211/iface.c:2198
 ieee80211_register_hw+0x37db/0x40d0 net/mac80211/main.c:1403
 mac80211_hwsim_new_radio+0x25c5/0x4920 drivers/net/wireless/mac80211_hwsim.c:4583
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888082949f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888082949f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88808294a000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                   ^
 ffff88808294a080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88808294a100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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