AuxXxilium/linux_dsm_epyc7002
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Gopal Tiwari 15c56b8f2c Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 
[ Upstream commit e8bd76ede155fd54d8c41d045dda43cd3174d506 ]

kernel panic trace looks like:

 #5 [ffffb9e08698fc80] do_page_fault at ffffffffb666e0d7
 #6 [ffffb9e08698fcb0] page_fault at ffffffffb70010fe
    [exception RIP: amp_read_loc_assoc_final_data+63]
    RIP: ffffffffc06ab54f  RSP: ffffb9e08698fd68  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff8c8845a5a000  RCX: 0000000000000004
    RDX: 0000000000000000  RSI: ffff8c8b9153d000  RDI: ffff8c8845a5a000
    RBP: ffffb9e08698fe40   R8: 00000000000330e0   R9: ffffffffc0675c94
    R10: ffffb9e08698fe58  R11: 0000000000000001  R12: ffff8c8b9cbf6200
    R13: 0000000000000000  R14: 0000000000000000  R15: ffff8c8b2026da0b
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #7 [ffffb9e08698fda8] hci_event_packet at ffffffffc0676904 [bluetooth]
 #8 [ffffb9e08698fe50] hci_rx_work at ffffffffc06629ac [bluetooth]
 #9 [ffffb9e08698fe98] process_one_work at ffffffffb66f95e7

hcon->amp_mgr seems NULL triggered kernel panic in following line inside
function amp_read_loc_assoc_final_data

        set_bit(READ_LOC_AMP_ASSOC_FINAL, &mgr->state);

Fixed by checking NULL for mgr.

Signed-off-by: Gopal Tiwari <gtiwari@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-07 12:34:10 +01:00
..
6lowpan
9p
802
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
appletalk
atm
ax25
batman-adv
bluetooth Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 12:34:10 +01:00
bpf bpf: Reject too big ctx_size_in for raw_tp test run 2021-01-27 11:55:07 +01:00
bpfilter
bridge net: bridge: use switchdev for port flags set through sysfs too 2021-03-07 12:34:07 +01:00
caif
can can: isotp: isotp_getname(): fix kernel information leak 2021-01-17 14:17:05 +01:00
ceph
core pktgen: fix misuse of BUG_ON() in pktgen_thread_worker() 2021-03-07 12:34:09 +01:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
dccp
decnet
dns_resolver
dsa net: dsa: tag_rtl4_a: Support also egress tags 2021-03-07 12:34:07 +01:00
ethernet
ethtool ethtool: fix string set id check 2021-01-06 14:56:48 +01:00
hsr net: hsr: add support for EntryForgetTime 2021-03-07 12:34:07 +01:00
ieee802154
ife
ipv4 net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-03-04 11:38:46 +01:00
ipv6 net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-03-04 11:38:46 +01:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm
key af_key: relax availability checks for skb size calculation 2021-02-13 13:55:02 +01:00
l2tp
l3mdev
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc
mac80211 mac80211: fix potential overflow when multiplying to u32 integers 2021-03-04 11:37:32 +01:00
mac802154
mpls
mptcp mptcp: do not wakeup listener for MPJ subflows 2021-03-07 12:34:06 +01:00
ncsi net/ncsi: Use real net-device for response handler 2021-01-12 20:18:10 +01:00
netfilter netfilter: conntrack: skip identical origin tuple in same zone only 2021-02-17 11:02:26 +01:00
netlabel
netlink
netrom
nfc tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
nsh
openvswitch net: openvswitch: fix TTL decrement exception action execution 2021-02-23 15:53:23 +01:00
packet net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
phonet
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: Fix memory leak in qrtr_tun_open 2021-03-04 11:38:47 +01:00
rds RDMA: Lift ibdev_to_node from rds to common code 2021-02-26 10:12:59 +01:00
rfkill
rose
rxrpc rxrpc: Fix clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched net/sched: cls_flower: Reject invalid ct_state flags rules 2021-03-07 12:34:07 +01:00
sctp net: fix iteration for sctp transport seq_files 2021-02-17 11:02:29 +01:00
smc
strparser
sunrpc svcrdma: Hold private mutex while invoking rdma_accept() 2021-03-04 11:38:08 +01:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc tipc: fix NULL deref in tipc_link_xmit() 2021-01-23 16:04:00 +01:00
tls net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
unix
vmw_vsock vsock: fix locking in vsock_shutdown() 2021-02-17 11:02:30 +01:00
wimax
wireless wext: fix NULL-ptr-dereference with cfg80211's lack of commit() 2021-02-03 23:28:38 +01:00
x25
xdp xsk: Clear pool even for inactive queues 2021-01-27 11:55:10 +01:00
xfrm xfrm: Fix wraparound in xfrm_policy_addr_delta() 2021-02-03 23:28:45 +01:00
compat.c
devres.c
Kconfig
Makefile
socket.c
sysctl_net.c