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Filename	Latest commit message	Latest commit date
Gwangun Jung 35dceaeab9 net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg ... [ Upstream commit 3037933448f60f9acb705997eae62013ecb81e0d ] If the TCA_QFQ_LMAX value is not offered through nlattr, lmax is determined by the MTU value of the network device. The MTU of the loopback device can be set up to 2^31-1. As a result, it is possible to have an lmax value that exceeds QFQ_MIN_LMAX. Due to the invalid lmax value, an index is generated that exceeds the QFQ_MAX_INDEX(=24) value, causing out-of-bounds read/write errors. The following reports a oob access: [ 84.582666] BUG: KASAN: slab-out-of-bounds in qfq_activate_agg.constprop.0 (net/sched/sch_qfq.c:1027 net/sched/sch_qfq.c:1060 net/sched/sch_qfq.c:1313) [ 84.583267] Read of size 4 at addr ffff88810f676948 by task ping/301 [ 84.583686] [ 84.583797] CPU: 3 PID: 301 Comm: ping Not tainted 6.3.0-rc5 #1 [ 84.584164] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 [ 84.584644] Call Trace: [ 84.584787] <TASK> [ 84.584906] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) [ 84.585108] print_report (mm/kasan/report.c:320 mm/kasan/report.c:430) [ 84.585570] kasan_report (mm/kasan/report.c:538) [ 84.585988] qfq_activate_agg.constprop.0 (net/sched/sch_qfq.c:1027 net/sched/sch_qfq.c:1060 net/sched/sch_qfq.c:1313) [ 84.586599] qfq_enqueue (net/sched/sch_qfq.c:1255) [ 84.587607] dev_qdisc_enqueue (net/core/dev.c:3776) [ 84.587749] __dev_queue_xmit (./include/net/sch_generic.h:186 net/core/dev.c:3865 net/core/dev.c:4212) [ 84.588763] ip_finish_output2 (./include/net/neighbour.h:546 net/ipv4/ip_output.c:228) [ 84.589460] ip_output (net/ipv4/ip_output.c:430) [ 84.590132] ip_push_pending_frames (./include/net/dst.h:444 net/ipv4/ip_output.c:126 net/ipv4/ip_output.c:1586 net/ipv4/ip_output.c:1606) [ 84.590285] raw_sendmsg (net/ipv4/raw.c:649) [ 84.591960] sock_sendmsg (net/socket.c:724 net/socket.c:747) [ 84.592084] __sys_sendto (net/socket.c:2142) [ 84.593306] __x64_sys_sendto (net/socket.c:2150) [ 84.593779] do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [ 84.593902] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120) [ 84.594070] RIP: 0033:0x7fe568032066 [ 84.594192] Code: 0e 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c09[ 84.594796] RSP: 002b:00007ffce388b4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c Code starting with the faulting instruction =========================================== [ 84.595047] RAX: ffffffffffffffda RBX: 00007ffce388cc70 RCX: 00007fe568032066 [ 84.595281] RDX: 0000000000000040 RSI: 00005605fdad6d10 RDI: 0000000000000003 [ 84.595515] RBP: 00005605fdad6d10 R08: 00007ffce388eeec R09: 0000000000000010 [ 84.595749] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000040 [ 84.595984] R13: 00007ffce388cc30 R14: 00007ffce388b4f0 R15: 0000001d00000001 [ 84.596218] </TASK> [ 84.596295] [ 84.596351] Allocated by task 291: [ 84.596467] kasan_save_stack (mm/kasan/common.c:46) [ 84.596597] kasan_set_track (mm/kasan/common.c:52) [ 84.596725] __kasan_kmalloc (mm/kasan/common.c:384) [ 84.596852] __kmalloc_node (./include/linux/kasan.h:196 mm/slab_common.c:967 mm/slab_common.c:974) [ 84.596979] qdisc_alloc (./include/linux/slab.h:610 ./include/linux/slab.h:731 net/sched/sch_generic.c:938) [ 84.597100] qdisc_create (net/sched/sch_api.c:1244) [ 84.597222] tc_modify_qdisc (net/sched/sch_api.c:1680) [ 84.597357] rtnetlink_rcv_msg (net/core/rtnetlink.c:6174) [ 84.597495] netlink_rcv_skb (net/netlink/af_netlink.c:2574) [ 84.597627] netlink_unicast (net/netlink/af_netlink.c:1340 net/netlink/af_netlink.c:1365) [ 84.597759] netlink_sendmsg (net/netlink/af_netlink.c:1942) [ 84.597891] sock_sendmsg (net/socket.c:724 net/socket.c:747) [ 84.598016] ____sys_sendmsg (net/socket.c:2501) [ 84.598147] ___sys_sendmsg (net/socket.c:2557) [ 84.598275] __sys_sendmsg (./include/linux/file.h:31 net/socket.c:2586) [ 84.598399] do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [ 84.598520] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120) [ 84.598688] [ 84.598744] The buggy address belongs to the object at ffff88810f674000 [ 84.598744] which belongs to the cache kmalloc-8k of size 8192 [ 84.599135] The buggy address is located 2664 bytes to the right of [ 84.599135] allocated 7904-byte region [ffff88810f674000, ffff88810f675ee0) [ 84.599544] [ 84.599598] The buggy address belongs to the physical page: [ 84.599777] page:00000000e638567f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10f670 [ 84.600074] head:00000000e638567f order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 84.600330] flags: 0x200000000010200(slab|head|node=0|zone=2) [ 84.600517] raw: 0200000000010200 ffff888100043180 dead000000000122 0000000000000000 [ 84.600764] raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000 [ 84.601009] page dumped because: kasan: bad access detected [ 84.601187] [ 84.601241] Memory state around the buggy address: [ 84.601396] ffff88810f676800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.601620] ffff88810f676880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.601845] >ffff88810f676900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.602069] ^ [ 84.602243] ffff88810f676980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.602468] ffff88810f676a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.602693] ================================================================== [ 84.602924] Disabling lock debugging due to kernel taint Fixes: 3015f3d2a3 ("pkt_sched: enable QFQ to support TSO/GSO") Reported-by: Gwangun Jung <exsociety@gmail.com> Signed-off-by: Gwangun Jung <exsociety@gmail.com> Acked-by: Jamal Hadi Salim<jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-26 11:24:01 +02:00
..
6lowpan
9p	9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition	2023-04-20 12:07:36 +02:00
802	mrp: introduce active flags to prevent UAF when applicant uninit	2023-01-18 11:41:37 +01:00
8021q
appletalk
atm	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2023-04-20 12:07:32 +02:00
ax25
batman-adv
bluetooth	Bluetooth: Fix race condition in hidp_session_thread	2023-04-20 12:07:35 +02:00
bpf	bpf: Move skb->len == 0 checks into __bpf_redirect	2023-01-18 11:41:04 +01:00
bpfilter
bridge	netfilter: br_netfilter: fix recent physdev match breakage	2023-04-26 11:24:01 +02:00
caif	net: caif: Fix use-after-free in cfusbl_device_notify()	2023-03-17 08:32:51 +01:00
can	can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access	2023-04-20 12:07:34 +02:00
ceph
core	net: don't let netpoll invoke NAPI if in xmit context	2023-04-20 12:07:33 +02:00
dcb
dccp	dccp/tcp: Avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions.	2023-02-22 12:50:40 +01:00
decnet
dns_resolver
dsa	net: dsa: ksz: Check return value	2022-12-14 11:30:45 +01:00
ethernet
hsr	hsr: Avoid double remove of a node.	2023-01-18 11:41:09 +01:00
ieee802154	net: ieee802154: fix error return code in dgram_bind()	2022-11-03 23:56:54 +09:00
ife
ipv4	icmp: guard against too small mtu	2023-04-20 12:07:33 +02:00
ipv6	udp6: fix potential access to stale information	2023-04-20 12:07:36 +02:00
iucv	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2023-04-20 12:07:32 +02:00
kcm	kcm: close race conditions on sk_receive_queue	2022-11-25 17:42:21 +01:00
key	af_key: Fix send_acquire race with pfkey_register	2022-12-08 11:22:57 +01:00
l2tp	l2tp: Don't sleep and disable BH under writer-side sk_callback_lock	2023-02-06 07:52:38 +01:00
l3mdev
lapb
llc
mac80211	wifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta	2023-04-20 12:07:33 +02:00
mac802154	mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()	2022-12-14 11:30:45 +01:00
mpls	net: mpls: fix stale pointer if allocation fails during device rename	2023-02-22 12:50:41 +01:00
ncsi
netfilter	netfilter: nft_redir: correct value of inet type .maxattrs	2023-03-22 13:28:04 +01:00
netlabel
netlink	netlink: annotate data races around sk_state	2023-02-06 07:52:45 +01:00
netrom	netrom: Fix use-after-free caused by accept on already connected socket	2023-02-22 12:50:24 +01:00
nfc	nfc: change order inside nfc_se_io error path	2023-03-17 08:32:48 +01:00
nsh
openvswitch	net: openvswitch: fix flow memory leak in ovs_flow_cmd_new	2023-02-22 12:50:25 +01:00
packet	net/af_packet: make sure to pull mac header	2023-01-18 11:41:45 +01:00
phonet
psample
qrtr
rds	rds: rds_rm_zerocopy_callback() correct order for list_add_tail()	2023-03-11 16:43:41 +01:00
rfkill
rose	net/rose: Fix to not accept on connected socket	2023-02-22 12:50:34 +01:00
rxrpc	rxrpc: Fix missing unlock in rxrpc_do_sendmsg()	2023-01-18 11:41:33 +01:00
sched	net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg	2023-04-26 11:24:01 +02:00
sctp	sctp: fix a potential overflow in sctp_ifwdtsn_skip	2023-04-20 12:07:36 +02:00
smc	net/smc: fix fallback failed while sendmsg with fastopen	2023-03-17 08:32:51 +01:00
strparser
sunrpc	sunrpc: only free unix grouplist after RCU settles	2023-04-20 12:07:33 +02:00
switchdev
tipc	tipc: call tipc_lxc_xmit without holding node_read_lock	2023-01-18 11:42:06 +01:00
tls	net: tls: fix possible race condition between do_tls_getsockopt_conf() and do_tls_setsockopt_conf()	2023-04-05 11:16:36 +02:00
unix	af_unix: Get user_ns from in_skb in unix_diag_get_exact().	2022-12-14 11:30:44 +01:00
vmw_vsock	net: vmw_vsock: vmci: Check memcpy_from_msg()	2023-01-18 11:41:13 +01:00
wimax
wireless	wifi: cfg80211: Partial revert "wifi: cfg80211: Fix use after free for wext"	2023-03-13 10:18:25 +01:00
x25	net/x25: Fix to not accept on connected socket	2023-02-22 12:50:26 +01:00
xdp
xfrm	xfrm: Allow transport-mode states with AF_UNSPEC selector	2023-03-22 13:28:03 +01:00
compat.c
Kconfig
Makefile
socket.c
sysctl_net.c