BUG: memory leak
unreferenced object 0xffff888115c772a0 (size 32):
  comm "syz-executor374", pid 7001, jiffies 4294944238 (age 7.600s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 e0 00 00 01 00 01 00 00  ................
  backtrace:
    [<000000001368be94>] kmemleak_alloc_recursive /./include/linux/kmemleak.h:43 [inline]
    [<000000001368be94>] slab_post_alloc_hook /mm/slab.h:522 [inline]
    [<000000001368be94>] slab_alloc /mm/slab.c:3319 [inline]
    [<000000001368be94>] kmem_cache_alloc_trace+0x145/0x280 /mm/slab.c:3548
    [<00000000ffebf9f4>] kmalloc /./include/linux/slab.h:552 [inline]
    [<00000000ffebf9f4>] kzalloc /./include/linux/slab.h:748 [inline]
    [<00000000ffebf9f4>] ip_mc_add1_src /net/ipv4/igmp.c:1973 [inline]
    [<00000000ffebf9f4>] ip_mc_add_src+0x361/0x3f0 /net/ipv4/igmp.c:2097
    [<00000000bffe4900>] ip_mc_msfilter+0x22d/0x310 /net/ipv4/igmp.c:2481
    [<000000001930e595>] do_ip_setsockopt.isra.0+0x1781/0x1920 /net/ipv4/ip_sockglue.c:959
    [<0000000066010c1c>] ip_setsockopt+0x3b/0xb0 /net/ipv4/ip_sockglue.c:1248
    [<0000000021f69ea3>] udp_setsockopt+0x4e/0x90 /net/ipv4/udp.c:2605
    [<0000000009dabb8a>] sock_common_setsockopt+0x38/0x50 /net/core/sock.c:3130
    [<00000000e65d9c41>] __sys_setsockopt+0x10f/0x220 /net/socket.c:2084
    [<00000000c5518dcf>] __do_sys_setsockopt /net/socket.c:2100 [inline]
    [<00000000c5518dcf>] __se_sys_setsockopt /net/socket.c:2097 [inline]
    [<00000000c5518dcf>] __x64_sys_setsockopt+0x26/0x30 /net/socket.c:2097
    [<00000000ee360621>] do_syscall_64+0x76/0x1a0 /arch/x86/entry/common.c:296
    [<00000000b3ba27c8>] entry_SYSCALL_64_after_hwframe+0x44/0xa9