memory leak in sctp_packet

Patch testing requests:
Created	Duration	User	Repo	Result
2022/11/10 17:30	9m	retest repro	upstream	report log
2021/08/04 01:06	16m	phind.uet@gmail.com	linux-next	OK
2021/04/15 09:23	8m	phil@philpotter.co.uk	upstream	report log
2020/10/16 23:42	8m	anant.thazhemadam@gmail.com	upstream	report log

executing program
BUG: memory leak
unreferenced object 0xffff88810a3ecf00 (size 232):
  comm "syz-executor766", pid 3604, jiffies 4294947015 (age 12.590s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 f0 a0 01 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff83824026>] __alloc_skb+0x216/0x290 net/core/skbuff.c:414
    [<ffffffff83fdd7b9>] alloc_skb include/linux/skbuff.h:1300 [inline]
    [<ffffffff83fdd7b9>] sctp_packet_transmit+0xa9/0xc80 net/sctp/output.c:597
    [<ffffffff83fc13d1>] sctp_outq_flush_transports+0x151/0x1c0 net/sctp/outqueue.c:1170
    [<ffffffff83fc412f>] sctp_outq_flush net/sctp/outqueue.c:1218 [inline]
    [<ffffffff83fc412f>] sctp_outq_uncork+0xaf/0xd0 net/sctp/outqueue.c:761
    [<ffffffff83faad22>] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1816 [inline]
    [<ffffffff83faad22>] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
    [<ffffffff83faad22>] sctp_do_sm+0x312/0x2290 net/sctp/sm_sideeffect.c:1170
    [<ffffffff83fb1b03>] sctp_assoc_bh_rcv+0x1e3/0x300 net/sctp/associola.c:1054
    [<ffffffff83fc0cf3>] sctp_inq_push+0x93/0xc0 net/sctp/inqueue.c:80
    [<ffffffff83fdf272>] sctp_backlog_rcv+0xa2/0x4f0 net/sctp/input.c:344
    [<ffffffff8381ebae>] sk_backlog_rcv include/net/sock.h:1051 [inline]
    [<ffffffff8381ebae>] __release_sock+0xbe/0x140 net/core/sock.c:2794
    [<ffffffff8381ec62>] release_sock+0x32/0xd0 net/core/sock.c:3327
    [<ffffffff83fcce92>] sctp_wait_for_connect+0xd2/0x290 net/sctp/socket.c:9316
    [<ffffffff83fce3d6>] sctp_sendmsg_to_asoc+0xd66/0xdb0 net/sctp/socket.c:1881
    [<ffffffff83fd6c6f>] sctp_sendmsg+0x99f/0x1030 net/sctp/socket.c:2027
    [<ffffffff83bc1505>] inet_sendmsg+0x45/0x70 net/ipv4/af_inet.c:819
    [<ffffffff838124a6>] sock_sendmsg_nosec net/socket.c:705 [inline]
    [<ffffffff838124a6>] sock_sendmsg+0x56/0x80 net/socket.c:725
    [<ffffffff8381544c>] __sys_sendto+0x15c/0x200 net/socket.c:2040

BUG: memory leak
unreferenced object 0xffff88810d547200 (size 232):
  comm "syz-executor766", pid 3607, jiffies 4294947538 (age 7.360s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff83824026>] __alloc_skb+0x216/0x290 net/core/skbuff.c:414
    [<ffffffff83fddb37>] alloc_skb include/linux/skbuff.h:1300 [inline]
    [<ffffffff83fddb37>] sctp_packet_pack net/sctp/output.c:471 [inline]
    [<ffffffff83fddb37>] sctp_packet_transmit+0x427/0xc80 net/sctp/output.c:620
    [<ffffffff83fc13d1>] sctp_outq_flush_transports+0x151/0x1c0 net/sctp/outqueue.c:1170
    [<ffffffff83fc412f>] sctp_outq_flush net/sctp/outqueue.c:1218 [inline]
    [<ffffffff83fc412f>] sctp_outq_uncork+0xaf/0xd0 net/sctp/outqueue.c:761
    [<ffffffff83faad22>] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1816 [inline]
    [<ffffffff83faad22>] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
    [<ffffffff83faad22>] sctp_do_sm+0x312/0x2290 net/sctp/sm_sideeffect.c:1170
    [<ffffffff83fb1b03>] sctp_assoc_bh_rcv+0x1e3/0x300 net/sctp/associola.c:1054
    [<ffffffff83fc0cf3>] sctp_inq_push+0x93/0xc0 net/sctp/inqueue.c:80
    [<ffffffff83fdf272>] sctp_backlog_rcv+0xa2/0x4f0 net/sctp/input.c:344
    [<ffffffff8381ebae>] sk_backlog_rcv include/net/sock.h:1051 [inline]
    [<ffffffff8381ebae>] __release_sock+0xbe/0x140 net/core/sock.c:2794
    [<ffffffff8381ec62>] release_sock+0x32/0xd0 net/core/sock.c:3327
    [<ffffffff83fcce92>] sctp_wait_for_connect+0xd2/0x290 net/sctp/socket.c:9316
    [<ffffffff83fce3d6>] sctp_sendmsg_to_asoc+0xd66/0xdb0 net/sctp/socket.c:1881
    [<ffffffff83fd6c6f>] sctp_sendmsg+0x99f/0x1030 net/sctp/socket.c:2027
    [<ffffffff83bc1505>] inet_sendmsg+0x45/0x70 net/ipv4/af_inet.c:819
    [<ffffffff838124a6>] sock_sendmsg_nosec net/socket.c:705 [inline]
    [<ffffffff838124a6>] sock_sendmsg+0x56/0x80 net/socket.c:725
    [<ffffffff8381544c>] __sys_sendto+0x15c/0x200 net/socket.c:2040

BUG: memory leak
unreferenced object 0xffff888109ada800 (size 2048):
  comm "syz-executor766", pid 3607, jiffies 4294947538 (age 7.360s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff83823ef3>] kmalloc_reserve net/core/skbuff.c:354 [inline]
    [<ffffffff83823ef3>] __alloc_skb+0xe3/0x290 net/core/skbuff.c:426
    [<ffffffff83fddb37>] alloc_skb include/linux/skbuff.h:1300 [inline]
    [<ffffffff83fddb37>] sctp_packet_pack net/sctp/output.c:471 [inline]
    [<ffffffff83fddb37>] sctp_packet_transmit+0x427/0xc80 net/sctp/output.c:620
    [<ffffffff83fc13d1>] sctp_outq_flush_transports+0x151/0x1c0 net/sctp/outqueue.c:1170
    [<ffffffff83fc412f>] sctp_outq_flush net/sctp/outqueue.c:1218 [inline]
    [<ffffffff83fc412f>] sctp_outq_uncork+0xaf/0xd0 net/sctp/outqueue.c:761
    [<ffffffff83faad22>] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1816 [inline]
    [<ffffffff83faad22>] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
    [<ffffffff83faad22>] sctp_do_sm+0x312/0x2290 net/sctp/sm_sideeffect.c:1170
    [<ffffffff83fb1b03>] sctp_assoc_bh_rcv+0x1e3/0x300 net/sctp/associola.c:1054
    [<ffffffff83fc0cf3>] sctp_inq_push+0x93/0xc0 net/sctp/inqueue.c:80
    [<ffffffff83fdf272>] sctp_backlog_rcv+0xa2/0x4f0 net/sctp/input.c:344
    [<ffffffff8381ebae>] sk_backlog_rcv include/net/sock.h:1051 [inline]
    [<ffffffff8381ebae>] __release_sock+0xbe/0x140 net/core/sock.c:2794
    [<ffffffff8381ec62>] release_sock+0x32/0xd0 net/core/sock.c:3327
    [<ffffffff83fcce92>] sctp_wait_for_connect+0xd2/0x290 net/sctp/socket.c:9316
    [<ffffffff83fce3d6>] sctp_sendmsg_to_asoc+0xd66/0xdb0 net/sctp/socket.c:1881
    [<ffffffff83fd6c6f>] sctp_sendmsg+0x99f/0x1030 net/sctp/socket.c:2027
    [<ffffffff83bc1505>] inet_sendmsg+0x45/0x70 net/ipv4/af_inet.c:819
    [<ffffffff838124a6>] sock_sendmsg_nosec net/socket.c:705 [inline]
    [<ffffffff838124a6>] sock_sendmsg+0x56/0x80 net/socket.c:725
    [<ffffffff8381544c>] __sys_sendto+0x15c/0x200 net/socket.c:2040

Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Title
ci-upstream-gce-leak	2022/05/13 16:46	upstream	f3f19f939c11	107f6434	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/07/08 13:51	upstream	3dbdb38e2869	95793bce	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/06/10 05:42	upstream	cd1245d75ce9	1ba81399	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/04/14 16:43	upstream	50987beca096	3134b37f	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/03/11 18:32	upstream	a74e6a014c9d	c2ca1f2a	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/02/07 01:49	upstream	964d069f93c4	0655e081	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/02/03 11:47	upstream	3aaf0a27ffc2	624dad51	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/02/01 04:27	upstream	6642d600b541	fc9fd31e	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/01/24 18:31	upstream	e1ae4b0be158	52e37319	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/01/22 16:35	upstream	9f29bd8b2e71	d4f4eca5	.config	log	report	syz	C	memory leak in sctp_packet_transmit
ci-upstream-gce-leak	2021/01/16 22:00	upstream	1d94330a437a	65a7a854	.config	log	report	syz	C
ci-upstream-gce-leak	2020/07/22 17:57	upstream	4fa640dc5230	128cd85f	.config	log	report	syz	C