AuxXxilium/linux_dsm_epyc7002
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cc413b375c
linux_dsm_epyc7002/net
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Seevalamuthu Mariappan cc413b375c mac80211: clear sta->fast_rx when STA removed from 4-addr VLAN 
[ Upstream commit dd0b45538146cb6a54d6da7663b8c3afd16ebcfd ]

In some race conditions, with more clients and traffic configuration,
below crash is seen when making the interface down. sta->fast_rx wasn't
cleared when STA gets removed from 4-addr AP_VLAN interface. The crash is
due to try accessing 4-addr AP_VLAN interface's net_device (fast_rx->dev)
which has been deleted already.

Resolve this by clearing sta->fast_rx pointer when STA removes
from a 4-addr VLAN.

[  239.449529] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[  239.449531] pgd = 80204000
...
[  239.481496] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.60 #227
[  239.481591] Hardware name: Generic DT based system
[  239.487665] task: be05b700 ti: be08e000 task.ti: be08e000
[  239.492360] PC is at get_rps_cpu+0x2d4/0x31c
[  239.497823] LR is at 0xbe08fc54
...
[  239.778574] [<80739740>] (get_rps_cpu) from [<8073cb10>] (netif_receive_skb_internal+0x8c/0xac)
[  239.786722] [<8073cb10>] (netif_receive_skb_internal) from [<8073d578>] (napi_gro_receive+0x48/0xc4)
[  239.795267] [<8073d578>] (napi_gro_receive) from [<c7b83e8c>] (ieee80211_mark_rx_ba_filtered_frames+0xbcc/0x12d4 [mac80211])
[  239.804776] [<c7b83e8c>] (ieee80211_mark_rx_ba_filtered_frames [mac80211]) from [<c7b84d4c>] (ieee80211_rx_napi+0x7b8/0x8c8 [mac8
            0211])
[  239.815857] [<c7b84d4c>] (ieee80211_rx_napi [mac80211]) from [<c7f63d7c>] (ath11k_dp_process_rx+0x7bc/0x8c8 [ath11k])
[  239.827757] [<c7f63d7c>] (ath11k_dp_process_rx [ath11k]) from [<c7f5b6c4>] (ath11k_dp_service_srng+0x2c0/0x2e0 [ath11k])
[  239.838484] [<c7f5b6c4>] (ath11k_dp_service_srng [ath11k]) from [<7f55b7dc>] (ath11k_ahb_ext_grp_napi_poll+0x20/0x84 [ath11k_ahb]
            )
[  239.849419] [<7f55b7dc>] (ath11k_ahb_ext_grp_napi_poll [ath11k_ahb]) from [<8073ce1c>] (net_rx_action+0xe0/0x28c)
[  239.860945] [<8073ce1c>] (net_rx_action) from [<80324868>] (__do_softirq+0xe4/0x228)
[  239.871269] [<80324868>] (__do_softirq) from [<80324c48>] (irq_exit+0x98/0x108)
[  239.879080] [<80324c48>] (irq_exit) from [<8035c59c>] (__handle_domain_irq+0x90/0xb4)
[  239.886114] [<8035c59c>] (__handle_domain_irq) from [<8030137c>] (gic_handle_irq+0x50/0x94)
[  239.894100] [<8030137c>] (gic_handle_irq) from [<803024c0>] (__irq_svc+0x40/0x74)

Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Link: https://lore.kernel.org/r/1616163532-3881-1-git-send-email-seevalam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-21 13:00:54 +02:00
..
6lowpan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
9p net: 9p: advance iov on empty read 2021-04-07 15:00:08 +02:00
802
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 15:00:08 +02:00
atm net: atm: fix update of position index in lec_seq_next 2020-10-31 12:26:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field 2021-04-14 08:41:59 +02:00
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 Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" 2020-10-15 12:33:24 -07:00
bridge net: bridge: don't notify switchdev for local FDB addresses 2021-03-30 14:32:04 +02:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: isotp: fix msg_namelen values depending on CAN_REQUIRED_SIZE 2021-04-14 08:42:07 +02:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core neighbour: Disregard DEAD dst in neigh_update 2021-04-21 13:00:52 +02:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
dccp ipv6: weaken the v4mapped source check 2021-03-30 14:32:01 +02:00
decnet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dns_resolver
dsa net: dsa: Fix type was not set for devlink port 2021-04-14 08:42:07 +02:00
ethernet net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
ethtool ethtool: fix incorrect datatype in set_eee ops 2021-04-14 08:41:58 +02:00
hsr net: hsr: Reset MAC header for Tx path 2021-04-14 08:42:02 +02:00
ieee802154 net: ieee802154: forbid monitor for add llsec seclevel 2021-04-21 13:00:53 +02:00
ife
ipv4 netfilter: x_tables: fix compat match/target pad out-of-bound write 2021-04-16 11:43:21 +02:00
ipv6 netfilter: x_tables: fix compat match/target pad out-of-bound write 2021-04-16 11:43:21 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key af_key: relax availability checks for skb size calculation 2021-02-13 13:55:02 +01:00
l2tp net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mac80211: clear sta->fast_rx when STA removed from 4-addr VLAN 2021-04-21 13:00:54 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-14 08:42:13 +02:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:06:11 +01:00
mptcp mptcp: forbit mcast-related sockopt on MPTCP sockets 2021-04-14 08:42:09 +02:00
ncsi net/ncsi: Avoid channel_monitor hrtimer deadlock 2021-04-14 08:42:08 +02:00
netfilter netfilter: x_tables: fix compat match/target pad out-of-bound write 2021-04-16 11:43:21 +02:00
netlabel cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-17 17:06:15 +01:00
netlink netlink: export policy in extended ACK 2020-10-09 20:22:32 -07:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc nfc: Avoid endless loops caused by repeated llcp_sock_connect() 2021-04-14 08:41:57 +02:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch openvswitch: fix send of uninitialized stack memory in ct limit reply 2021-04-14 08:42:10 +02:00
packet net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: Fix memory leak on qrtr_tx_wait failure 2021-04-14 08:42:08 +02:00
rds net/rds: Fix a use after free in rds_message_map_pages 2021-04-14 08:42:09 +02:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-12 09:18:06 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc rxrpc: Fix clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched Revert "net: sched: bump refcount for new action in ACT replace mode" 2021-04-14 08:42:14 +02:00
sctp net/sctp: fix race condition in sctp_destroy_sock 2021-04-21 13:00:50 +02:00
smc net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() 2020-11-19 10:59:19 -08:00
strparser
sunrpc rpc: fix NULL dereference on kmalloc failure 2021-04-07 15:00:04 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc tipc: increment the tmp aead refcnt before attaching it 2021-04-14 08:42:11 +02:00
tls net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock selinux: vsock: Set SID for socket returned by accept() 2021-03-30 14:32:03 +02:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless cfg80211: remove WARN_ON() in cfg80211_sme_connect 2021-04-14 08:42:13 +02:00
x25 net/x25: prevent a couple of overflows 2020-12-02 17:26:36 -08:00
xdp xsk: Clear pool even for inactive queues 2021-01-27 11:55:10 +01:00
xfrm xfrm: BEET mode doesn't support fragments for inner packets 2021-04-21 13:00:51 +02:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-05 18:40:01 -07:00
sysctl_net.c