=====================================================
BUG: KMSAN: uninit-value in sctp_inq_pop+0x1597/0x1910 net/sctp/inqueue.c:205
 sctp_inq_pop+0x1597/0x1910 net/sctp/inqueue.c:205
 sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:997
 sctp_inq_push+0x23e/0x2b0 net/sctp/inqueue.c:80
 sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __release_sock+0x207/0x570 net/core/sock.c:2968
 release_sock+0x6b/0x200 net/core/sock.c:3534
 sctp_wait_for_connect+0x486/0x810 net/sctp/socket.c:9342
 sctp_sendmsg_to_asoc+0x1ea7/0x1ee0 net/sctp/socket.c:1884
 sctp_sendmsg+0x32b4/0x4a70 net/sctp/socket.c:2030
 inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x781/0xa30 net/socket.c:2190
 __do_sys_sendto net/socket.c:2202 [inline]
 __se_sys_sendto net/socket.c:2198 [inline]
 __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2198
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a

Uninit was stored to memory at:
 sctp_inq_pop+0x151a/0x1910 net/sctp/inqueue.c:201
 sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:997
 sctp_inq_push+0x23e/0x2b0 net/sctp/inqueue.c:80
 sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __release_sock+0x207/0x570 net/core/sock.c:2968
 release_sock+0x6b/0x200 net/core/sock.c:3534
 sctp_wait_for_connect+0x486/0x810 net/sctp/socket.c:9342
 sctp_sendmsg_to_asoc+0x1ea7/0x1ee0 net/sctp/socket.c:1884
 sctp_sendmsg+0x32b4/0x4a70 net/sctp/socket.c:2030
 inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x781/0xa30 net/socket.c:2190
 __do_sys_sendto net/socket.c:2202 [inline]
 __se_sys_sendto net/socket.c:2198 [inline]
 __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2198
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a

Uninit was created at:
 slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768
 slab_alloc_node mm/slub.c:3478 [inline]
 __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517
 __do_kmalloc_node mm/slab_common.c:1006 [inline]
 __kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027
 kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582
 __alloc_skb+0x318/0x740 net/core/skbuff.c:651
 alloc_skb include/linux/skbuff.h:1286 [inline]
 sctp_packet_pack net/sctp/output.c:472 [inline]
 sctp_packet_transmit+0x1729/0x4150 net/sctp/output.c:621
 sctp_outq_flush_transports net/sctp/outqueue.c:1173 [inline]
 sctp_outq_flush+0x1cde/0x5e70 net/sctp/outqueue.c:1221
 sctp_outq_uncork+0x9c/0xb0 net/sctp/outqueue.c:764
 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline]
 sctp_do_sm+0x8c1a/0x9380 net/sctp/sm_sideeffect.c:1169
 sctp_assoc_bh_rcv+0x8fe/0xc50 net/sctp/associola.c:1051
 sctp_inq_push+0x23e/0x2b0 net/sctp/inqueue.c:80
 sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __release_sock+0x207/0x570 net/core/sock.c:2968
 release_sock+0x6b/0x200 net/core/sock.c:3534
 sctp_wait_for_connect+0x486/0x810 net/sctp/socket.c:9342
 sctp_sendmsg_to_asoc+0x1ea7/0x1ee0 net/sctp/socket.c:1884
 sctp_sendmsg+0x32b4/0x4a70 net/sctp/socket.c:2030
 inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x781/0xa30 net/socket.c:2190
 __do_sys_sendto net/socket.c:2202 [inline]
 __se_sys_sendto net/socket.c:2198 [inline]
 __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2198
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a

CPU: 0 PID: 18484 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
=====================================================