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Zhengchao Shao 9ed7bfc795 sctp: fix memory leak in sctp_stream_outq_migrate() 
When sctp_stream_outq_migrate() is called to release stream out resources,
the memory pointed to by prio_head in stream out is not released.

The memory leak information is as follows:
 unreferenced object 0xffff88801fe79f80 (size 64):
   comm "sctp_repo", pid 7957, jiffies 4294951704 (age 36.480s)
   hex dump (first 32 bytes):
     80 9f e7 1f 80 88 ff ff 80 9f e7 1f 80 88 ff ff  ................
     90 9f e7 1f 80 88 ff ff 90 9f e7 1f 80 88 ff ff  ................
   backtrace:
     [<ffffffff81b215c6>] kmalloc_trace+0x26/0x60
     [<ffffffff88ae517c>] sctp_sched_prio_set+0x4cc/0x770
     [<ffffffff88ad64f2>] sctp_stream_init_ext+0xd2/0x1b0
     [<ffffffff88aa2604>] sctp_sendmsg_to_asoc+0x1614/0x1a30
     [<ffffffff88ab7ff1>] sctp_sendmsg+0xda1/0x1ef0
     [<ffffffff87f765ed>] inet_sendmsg+0x9d/0xe0
     [<ffffffff8754b5b3>] sock_sendmsg+0xd3/0x120
     [<ffffffff8755446a>] __sys_sendto+0x23a/0x340
     [<ffffffff87554651>] __x64_sys_sendto+0xe1/0x1b0
     [<ffffffff89978b49>] do_syscall_64+0x39/0xb0
     [<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Link: https://syzkaller.appspot.com/bug?exrid=29c402e56c4760763cc0
Fixes: 637784ade221 ("sctp: introduce priority based stream scheduler")
Reported-by: syzbot+29c402e56c4760763cc0@syzkaller.appspotmail.com
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20221126031720.378562-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-29 08:30:50 -08:00
..
associola.c
sctp: leave the err path free in sctp_stream_init to sctp_stream_free
2022-07-27 18:23:22 -07:00
auth.c
sctp: handle the error returned from sctp_auth_asoc_init_active_key
2022-09-30 12:36:40 +01:00
bind_addr.c
sctp: validate from_addr_param return
2021-06-28 15:34:50 -07:00
chunk.c
net: sctp: chunk.c: delete duplicated word
2020-08-24 16:21:43 -07:00
debug.c
sctp: add the probe timer in transport for PLPMTUD
2021-06-22 11:28:52 -07:00
diag.c
sctp: fix kernel-infoleak for SCTP sockets
2022-03-10 14:46:42 -08:00
endpointola.c
sctp: use call_rcu to free endpoint
2021-12-25 17:13:37 +00:00
input.c
sctp: read sk->sk_bound_dev_if once in sctp_rcv()
2022-05-16 10:31:06 +01:00
inqueue.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104
2019-05-24 17:39:00 +02:00
ipv6.c
ipv6: Remove __ipv6_only_sock().
2022-04-22 12:47:50 +01:00
Kconfig
sctp: create udp4 sock and add its encap_rcv
2020-10-30 15:23:52 -07:00
Makefile
sctp: rename sctp_diag.c as diag.c
2018-02-13 13:56:31 -05:00
objcnt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104
2019-05-24 17:39:00 +02:00
offload.c
sctp: remove the NETIF_F_SG flag before calling skb_segment
2021-01-16 19:05:59 -08:00
output.c
net: allow gso_max_size to exceed 65536
2022-05-16 10:18:55 +01:00
outqueue.c
sctp: clear out_curr if all frag chunks of current msg are pruned
2022-11-07 19:59:01 -08:00
primitive.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104
2019-05-24 17:39:00 +02:00
proc.c
sctp: move hlist_node and hashent out of sctp_ep_common
2021-12-23 11:15:30 +00:00
protocol.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
sm_make_chunk.c
sctp: account stream padding length for reconf chunk
2021-10-14 07:15:22 -07:00
sm_sideeffect.c
sctp: check asoc strreset_chunk in sctp_generate_reconf_event
2022-04-23 22:34:17 +01:00
sm_statefuns.c
net: keep sk->sk_forward_alloc as small as possible
2022-06-10 16:21:27 -07:00
sm_statetable.c
sctp: add the probe timer in transport for PLPMTUD
2021-06-22 11:28:52 -07:00
socket.c
treewide: use get_random_{u8,u16}() when possible, part 1
2022-10-11 17:42:58 -06:00
stream_interleave.c
net: keep sk->sk_forward_alloc as small as possible
2022-06-10 16:21:27 -07:00
stream_sched_prio.c
sctp: fix memory leak in sctp_stream_outq_migrate()
2022-11-29 08:30:50 -08:00
stream_sched_rr.c
sctp: fix memory leak in sctp_stream_outq_migrate()
2022-11-29 08:30:50 -08:00
stream_sched.c
sctp: fix memory leak in sctp_stream_outq_migrate()
2022-11-29 08:30:50 -08:00
stream.c
sctp: fix memory leak in sctp_stream_outq_migrate()
2022-11-29 08:30:50 -08:00
sysctl.c
sctp: add probe_interval in sysctl and sock/asoc/transport
2021-06-22 11:28:51 -07:00
transport.c
sctp: make the raise timer more simple and accurate
2021-11-25 21:00:45 -08:00
tsnmap.c
net: sctp: trivial: fix typo in comment
2021-03-04 13:48:32 -08:00
ulpevent.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
ulpqueue.c
net: keep sk->sk_forward_alloc as small as possible
2022-06-10 16:21:27 -07:00