mirror-linux/net
Raphael Zimmer 821365487a libceph: Fix potential out-of-bounds access in __ceph_x_decrypt()
In __ceph_x_decrypt(), a part of the buffer p is interpreted as a
ceph_x_encrypt_header, and the magic field of this struct is accessed.
This happens without any guarantee that the buffer is large enough to
hold this struct. The function parameter ciphertext_len represents the
length of the ciphertext to decrypt and is guaranteed to be at most the
remaining size of the allocated buffer p. However, this value is not
necessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message
frame of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold
the ciphertext at its end with a ciphertext_len of 8 or less, can
trigger an out-of-bounds memory access when accessing hdr->magic.

This patch fixes the issue by adding a check to ensure that the
decrypted plaintext in the buffer is large enough to represent at least
the ceph_x_encrypt_header.

Cc: stable@vger.kernel.org
Signed-off-by: Raphael Zimmer <raphael.zimmer@tu-ilmenau.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2026-05-11 10:39:22 +02:00
..
6lowpan
9p 9p/trans_xen: replace simple_strto* with kstrtouint 2026-04-16 02:57:01 +00:00
802
8021q 8021q: delete cleared egress QoS mappings 2026-04-23 12:13:57 +02:00
appletalk
atm net: remove unused ATM protocols and legacy ATM device drivers 2026-04-23 12:21:14 -07:00
batman-adv Here are two batman-adv bugfixes: 2026-04-08 18:50:27 -07:00
bluetooth Bluetooth: HIDP: serialise l2cap_unregister_user via hidp_session_sem 2026-05-06 16:27:53 -04:00
bpf bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb 2026-04-12 15:42:57 -07:00
bridge Delete some obsolete networking code 2026-04-24 09:41:58 -07:00
can Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
ceph libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() 2026-05-11 10:39:22 +02:00
core bpf-fixes 2026-05-09 18:42:54 -07:00
dcb
devlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
dns_resolver net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
dsa net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops 2026-04-16 19:10:48 -07:00
ethernet bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
ethtool ethtool: strset: check nla_len overflow 2026-04-12 11:23:50 -07:00
handshake
hsr net: hsr: emit notification for PRP slave2 changed hw addr on port deletion 2026-04-07 17:06:16 +02:00
ieee802154
ife
ipv4 bpf-fixes 2026-05-09 18:42:54 -07:00
ipv6 tcp: Fix dst leak in tcp_v6_connect(). 2026-05-07 08:39:15 -07:00
iucv net/iucv: Add missing kernel-doc return value descriptions 2026-03-31 20:14:56 -07:00
kcm
key vfs-7.1-rc1.kino 2026-04-13 12:19:01 -07:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
l3mdev
lapb
llc llc: Return -EINPROGRESS from llc_ui_connect() 2026-04-23 11:40:39 -07:00
mac80211 wifi: mac80211: remove station if connection prep fails 2026-05-06 11:02:57 +02:00
mac802154 bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
mctp net: mctp: test: Use dev_direct_xmit for TX to our test device 2026-04-30 13:36:47 -07:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
mptcp bpf-fixes 2026-05-09 18:42:54 -07:00
ncsi net: ncsi: fix skb leak in error paths 2026-03-06 17:34:48 -08:00
netfilter ipvs: Guard access of HK_TYPE_KTHREAD cpumask with RCU 2026-05-05 01:52:55 +02:00
netlabel
netlink Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
nfc NFC: digital: Bounds check NFC-A cascade depth in SDD response handler 2026-04-12 11:40:45 -07:00
nsh
openvswitch openvswitch: vport: fix self-deadlock on release of tunnel ports 2026-05-05 15:19:37 +02:00
packet net/packet: fix TOCTOU race on mmap'd vnet_hdr in tpacket_snd() 2026-04-22 20:16:34 -07:00
phonet net: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind 2026-04-27 18:45:17 -07:00
psample
psp psp: strip variable-length PSP header in psp_dev_rcv() 2026-05-04 19:25:14 -07:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-14 12:04:00 -07:00
rds net/rds: handle zerocopy send cleanup before the message is queued 2026-05-05 15:32:40 +02:00
rfkill net: rfkill: prevent unlimited numbers of rfkill events from being created 2026-04-07 12:35:04 +02:00
rxrpc rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present 2026-05-10 08:15:57 -07:00
sched net/sched: sch_sfq: annotate data-races from sfq_dump_class_stats() 2026-05-06 17:46:05 -07:00
sctp sctp: discard stale INIT after handshake completion 2026-04-28 17:52:19 -07:00
shaper net: shaper: protect from late creation of hierarchy 2026-03-19 13:47:15 +01:00
smc net/smc: fix missing sk_err when TCP handshake fails 2026-05-07 08:36:34 -07:00
strparser net: strparser: fix skb_head leak in strp_abort_strp() 2026-04-14 12:37:00 +02:00
sunrpc NFS client updates for Linux 7.1 2026-04-24 14:20:03 -07:00
switchdev bridge: No DEV_PATH_BR_VLAN_UNTAG_HW for dsa foreign 2026-03-19 13:14:00 +01:00
tipc Including fixes from Netfilter. 2026-04-23 16:50:42 -07:00
tls net: tls: fix silent data drop under pipe back-pressure 2026-05-02 18:27:14 -07:00
unix af_unix: Reject SIOCATMARK on non-stream sockets 2026-05-07 08:36:02 -07:00
vmw_vsock vsock/virtio: fix potential unbounded skb queue 2026-05-04 19:12:37 -07:00
wireless wifi: nl80211: re-check wiphy netns in nl80211_prepare_wdev_dump() continuation 2026-05-06 11:08:41 +02:00
x25 vfs-7.1-rc1.kino 2026-04-13 12:19:01 -07:00
xdp bpf-fixes 2026-05-09 18:42:54 -07:00
xfrm xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete 2026-04-29 11:27:34 +02:00
Kconfig net: remove ax25 and amateur radio (hamradio) subsystem 2026-04-23 10:24:02 -07:00
Kconfig.debug
Makefile net: remove ax25 and amateur radio (hamradio) subsystem 2026-04-23 10:24:02 -07:00
compat.c
devres.c
socket.c Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
sysctl_net.c