YueHaibing 3c3941bb1e can: bcm: Fix UAF in bcm_proc_show() ... commit 55c3b96074 upstream. BUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xd5/0x150 print_report+0xc1/0x5e0 kasan_report+0xba/0xf0 bcm_proc_show+0x969/0xa80 seq_read_iter+0x4f6/0x1260 seq_read+0x165/0x210 proc_reg_read+0x227/0x300 vfs_read+0x1d5/0x8d0 ksys_read+0x11e/0x240 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Allocated by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x9e/0xa0 bcm_sendmsg+0x264b/0x44e0 sock_sendmsg+0xda/0x180 ____sys_sendmsg+0x735/0x920 ___sys_sendmsg+0x11d/0x1b0 __sys_sendmsg+0xfa/0x1d0 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x27/0x40 ____kasan_slab_free+0x161/0x1c0 slab_free_freelist_hook+0x119/0x220 __kmem_cache_free+0xb4/0x2e0 rcu_core+0x809/0x1bd0 bcm_op is freed before procfs entry be removed in bcm_release(), this lead to bcm_proc_show() may read the freed bcm_op. Fixes: ffd980f976 ("[CAN]: Add broadcast manager (bcm) protocol") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/all/20230715092543.15548-1-yuehaibing@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-07-27 08:46:55 +02:00
..
6lowpan
9p	9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition	2023-04-20 12:13:53 +02:00
802	mrp: introduce active flags to prevent UAF when applicant uninit	2022-12-31 13:14:42 +01:00
8021q	vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit()	2023-05-24 17:36:52 +01:00
appletalk
atm	atm: hide unused procfs functions	2023-06-09 10:32:26 +02:00
ax25	net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg	2022-06-22 14:22:01 +02:00
batman-adv	batman-adv: Broken sync while rescheduling delayed work	2023-06-14 11:13:04 +02:00
bluetooth	Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk	2023-06-14 11:13:06 +02:00
bpf	bpf: Move skb->len == 0 checks into __bpf_redirect	2022-12-31 13:14:11 +01:00
bpfilter
bridge	net: bridge: keep ports without IFF_UNICAST_FLT in BR_PROMISC mode	2023-07-23 13:47:29 +02:00
caif	net: caif: Fix use-after-free in cfusbl_device_notify()	2023-03-17 08:48:54 +01:00
can	can: bcm: Fix UAF in bcm_proc_show()	2023-07-27 08:46:55 +02:00
ceph	libceph: harden msgr2.1 frame segment length checks	2023-07-23 13:47:53 +02:00
core	net: prevent skb corruption on frag list segmentation	2023-07-23 13:47:41 +02:00
dcb	net: dcb: disable softirqs in dcbnl_flush_dev()	2022-03-08 19:12:52 +01:00
dccp	dccp: Call inet6_destroy_sock() via sk->sk_destruct().	2023-04-26 13:51:54 +02:00
dns_resolver
dsa	net: dsa: tag_sja1105: fix MAC DA patching from meta frames	2023-07-23 13:47:30 +02:00
ethernet
ethtool	ethtool: Fix uninitialized number of lanes	2023-05-17 11:50:18 +02:00
hsr	hsr: ratelimit only when errors are printed	2023-04-05 11:25:02 +02:00
ieee802154	net: ieee802154: fix error return code in dgram_bind()	2022-11-03 23:59:14 +09:00
ife
ipv4	tcp: annotate data races in __tcp_oow_rate_limited()	2023-07-23 13:47:29 +02:00
ipv6	ipv6/addrconf: fix a potential refcount underflow for idev	2023-07-23 13:47:42 +02:00
iucv	net/iucv: Fix size of interrupt data	2023-03-22 13:31:28 +01:00
kcm	kcm: close race conditions on sk_receive_queue	2022-11-26 09:24:50 +01:00
key	af_key: Reject optional tunnel/BEET mode templates in outbound policies	2023-05-24 17:36:49 +01:00
l2tp	inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy().	2023-04-26 13:51:54 +02:00
l3mdev	l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu	2022-04-27 14:38:53 +02:00
lapb
llc	net: deal with most data-races in sk_wait_event()	2023-05-24 17:36:42 +01:00
mac80211	wifi: mac80211: simplify chanctx allocation	2023-06-09 10:32:25 +02:00
mac802154	mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()	2022-12-14 11:37:25 +01:00
mctp	net: mctp: purge receive queues on sk destruction	2023-02-06 07:59:02 +01:00
mpls	net: mpls: fix stale pointer if allocation fails during device rename	2023-02-22 12:57:09 +01:00
mptcp	mptcp: consolidate fallback and non fallback state machine	2023-07-05 18:25:04 +01:00
ncsi	net/ncsi: clear Tx enable mode when handling a Config required AEN	2023-05-17 11:50:16 +02:00
netfilter	netfilter: nf_tables: prevent OOB access in nft_byteorder_eval	2023-07-23 13:47:37 +02:00
netlabel	netlabel: fix out-of-bounds memory accesses	2022-04-13 20:59:10 +02:00
netlink	netlink: Add __sock_i_ino() for __netlink_diag_dump().	2023-07-23 13:46:56 +02:00
netrom	netrom: fix info-leak in nr_write_internal()	2023-06-09 10:32:16 +02:00
nfc	net: nfc: Fix use-after-free caused by nfc_llcp_find_local	2023-07-23 13:46:56 +02:00
nsh	net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()	2023-05-24 17:36:51 +01:00
openvswitch	net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()	2023-02-22 12:57:09 +01:00
packet	af_packet: do not use READ_ONCE() in packet_bind()	2023-06-09 10:32:17 +02:00
phonet	phonet: refcount leak in pep_sock_accep	2022-01-11 15:35:16 +01:00
psample
qrtr	net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()	2023-04-20 12:13:53 +02:00
rds	rds: rds_rm_zerocopy_callback() correct order for list_add_tail()	2023-03-10 09:39:16 +01:00
rfkill	rfkill: make new event layout opt-in	2022-04-08 14:23:00 +02:00
rose	net/rose: Fix to not accept on connected socket	2023-02-22 12:57:02 +01:00
rxrpc	rxrpc: Fix hard call timeout units	2023-05-17 11:50:17 +02:00
sched	net/sched: sch_qfq: reintroduce lmax bound check for MTU	2023-07-23 13:47:58 +02:00
sctp	sctp: fix potential deadlock on &net->sctp.addr_wq_lock	2023-07-23 13:47:27 +02:00
smc	net/smc: Avoid to access invalid RMBs' MRs in SMCRv1 ADD LINK CONT	2023-06-14 11:13:01 +02:00
strparser	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding	2021-11-18 19:17:11 +01:00
sunrpc	SUNRPC: Fix UAF in svc_tcp_listen_data_ready()	2023-07-23 13:47:20 +02:00
switchdev
tipc	net: tipc: resize nlattr array to correct size	2023-06-21 15:59:18 +02:00
tls	net: deal with most data-races in sk_wait_event()	2023-05-24 17:36:42 +01:00
unix	af_unix: Fix data races around sk->sk_shutdown.	2023-05-24 17:36:42 +01:00
vmw_vsock	vsock: avoid to close connected socket after the timeout	2023-05-24 17:36:49 +01:00
wireless	wifi: cfg80211: rewrite merging of inherited elements	2023-07-23 13:46:53 +02:00
x25	net/x25: Fix to not accept on connected socket	2023-02-09 11:26:40 +01:00
xdp	xsk: Honor SO_BINDTODEVICE on bind	2023-07-23 13:47:29 +02:00
xfrm	xfrm: Ensure policies always checked on XFRM-I input path	2023-06-28 10:29:45 +02:00
compat.c
devres.c
Kconfig	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
Makefile	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
socket.c	net: annotate sk->sk_err write from do_recvmmsg()	2023-05-24 17:36:42 +01:00
sysctl_net.c