=====================================================
BUG: KMSAN: uninit-value in consumer_filter kernel/events/uprobes.c:869 [inline]
BUG: KMSAN: uninit-value in filter_chain kernel/events/uprobes.c:880 [inline]
BUG: KMSAN: uninit-value in uprobe_mmap+0x2150/0x24d0 kernel/events/uprobes.c:1387
 consumer_filter kernel/events/uprobes.c:869 [inline]
 filter_chain kernel/events/uprobes.c:880 [inline]
 uprobe_mmap+0x2150/0x24d0 kernel/events/uprobes.c:1387
 mmap_region+0x3dfb/0x4420 mm/mmap.c:3058
 do_mmap+0xebc/0x1b10 mm/mmap.c:1468
 vm_mmap_pgoff+0x23b/0x5a0 mm/util.c:588
 ksys_mmap_pgoff+0x5cb/0x7a0 mm/mmap.c:1514
 __do_sys_mmap_pgoff mm/mmap.c:1525 [inline]
 __se_sys_mmap_pgoff mm/mmap.c:1521 [inline]
 __ia32_sys_mmap_pgoff+0x11d/0x1a0 mm/mmap.c:1521
 ia32_sys_call+0x3d61/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:193
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3994 [inline]
 slab_alloc_node mm/slub.c:4037 [inline]
 __kmalloc_cache_noprof+0x4f0/0xb00 mm/slub.c:4184
 kmalloc_noprof include/linux/slab.h:681 [inline]
 __netdev_adjacent_dev_insert+0x1c7/0xe90 net/core/dev.c:7759
 __netdev_adjacent_dev_link_lists net/core/dev.c:7856 [inline]
 __netdev_adjacent_dev_link_neighbour net/core/dev.c:7880 [inline]
 __netdev_upper_dev_link+0x824/0xa20 net/core/dev.c:7940
 netdev_master_upper_dev_link+0x86/0xc0 net/core/dev.c:8015
 batadv_hardif_enable_interface+0x339/0xec0 net/batman-adv/hard-interface.c:734
 batadv_softif_slave_add+0x103/0x220 net/batman-adv/soft-interface.c:844
 do_set_master net/core/rtnetlink.c:2701 [inline]
 do_setlink+0x1a1a/0x7110 net/core/rtnetlink.c:2907
 __rtnl_newlink net/core/rtnetlink.c:3696 [inline]
 rtnl_newlink+0x329e/0x41f0 net/core/rtnetlink.c:3743
 rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647
 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550
 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:745
 __sys_sendto+0x685/0x830 net/socket.c:2204
 __do_compat_sys_socketcall net/compat.c:475 [inline]
 __se_compat_sys_socketcall+0xceb/0x1a20 net/compat.c:423
 __ia32_compat_sys_socketcall+0x6b/0xa0 net/compat.c:423
 ia32_sys_call+0x3710/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:103
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 8464 Comm: syz.3.1138 Not tainted 6.11.0-rc3-syzkaller-00013-g6b0f8db921ab #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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