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Rahul Rameshbabu d314d0c3de sch_htb: Avoid grafting on htb_destroy_class_offload when destroying htb 
[ Upstream commit a22b7388d6 ]

Peek at old qdisc and graft only when deleting a leaf class in the htb,
rather than when deleting the htb itself. Do not peek at the qdisc of the
netdev queue when destroying the htb. The caller may already have grafted a
new qdisc that is not part of the htb structure being destroyed.

This fix resolves two use cases.

  1. Using tc to destroy the htb.
    - Netdev was being prematurely activated before the htb was fully
      destroyed.
  2. Using tc to replace the htb with another qdisc (which also leads to
     the htb being destroyed).
    - Premature netdev activation like previous case. Newly grafted qdisc
      was also getting accidentally overwritten when destroying the htb.

Fixes: d03b195b5a ("sch_htb: Hierarchical QoS hardware offload")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230113005528.302625-1-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-02-01 08:34:18 +01:00
..
6lowpan
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9p 9p/client: fix data race on req->status 2023-01-12 12:02:36 +01:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:33:02 +01:00
8021q net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
appletalk
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atm net/atm: fix proc_mpc_write incorrect return value 2022-10-15 11:08:36 +01:00
ax25
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batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-22 13:02:10 -07:00
bluetooth Bluetooth: hci_sync: Fix use HCI_OP_LE_READ_BUFFER_SIZE_V2 2023-01-24 07:24:32 +01:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:32:14 +01:00
bpfilter
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bridge bridge: switchdev: Fix memory leaks when changing VLAN protocol 2022-11-15 13:38:11 +01:00
caif caif: fix memory leak in cfctrl_linkup_request() 2023-01-12 12:02:33 +01:00
can can: af_can: fix NULL pointer dereference in can_rcv_filter 2022-12-07 10:30:47 +01:00
ceph Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
core gro: take care of DODGY packets 2023-01-18 11:58:26 +01:00
dcb
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dccp dccp/tcp: Fixup bhash2 bucket when connect() fails. 2022-11-22 20:15:37 -08:00
dns_resolver
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dsa net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path 2022-12-31 13:32:29 +01:00
ethernet net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
ethtool net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats 2023-01-24 07:24:31 +01:00
hsr hsr: Synchronize sequence number updates. 2022-12-31 13:32:22 +01:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-10-07 09:29:17 +02:00
ife
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ipv4 net/ulp: use consistent error code when blocking ULP 2023-01-24 07:24:43 +01:00
ipv6 ipv6: raw: Deduct extension header length in rawv6_push_pending_frames 2023-01-18 11:58:19 +01:00
iucv
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kcm kcm: close race conditions on sk_receive_queue 2022-11-15 12:42:26 +01:00
key xfrm: Fix oops in __xfrm_state_delete() 2022-11-22 07:14:55 +01:00
l2tp l2tp: Don't sleep and disable BH under writer-side sk_callback_lock 2022-11-23 12:45:19 +00:00
l3mdev
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lapb
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llc
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mac80211 Revert "wifi: mac80211: fix memory leak in ieee80211_if_add()" 2023-01-24 07:24:44 +01:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-05 09:53:08 +01:00
mctp mctp: Remove device type check at unregister 2022-12-31 13:32:56 +01:00
mpls net: Use u64_stats_fetch_begin_irq() for stats fetch. 2022-08-29 13:02:27 +01:00
mptcp mptcp: netlink: respect v4/v6-only sockets 2023-01-24 07:24:37 +01:00
ncsi genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netfilter netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. 2023-01-18 11:58:21 +01:00
netlabel genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netlink genetlink: limit the use of validation workarounds to old ops 2022-10-27 08:20:21 -07:00
netrom
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nfc net: nfc: Fix use-after-free in local_cleanup() 2023-02-01 08:34:17 +01:00
nsh
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openvswitch openvswitch: Use kmalloc_size_roundup() to match ksize() usage 2022-12-31 13:32:59 +01:00
packet packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE 2022-11-29 08:30:18 -08:00
phonet
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psample genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
qrtr
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rds treewide: use get_random_{u8,u16}() when possible, part 2 2022-10-11 17:42:58 -06:00
rfkill
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rose rose: Fix NULL pointer dereference in rose_send_frame() 2022-11-02 11:57:30 +00:00
rxrpc rxrpc: Fix missing unlock in rxrpc_do_sendmsg() 2022-12-31 13:32:55 +01:00
sched sch_htb: Avoid grafting on htb_destroy_class_offload when destroying htb 2023-02-01 08:34:18 +01:00
sctp sctp: sysctl: make extra pointers netns aware 2022-12-31 13:32:28 +01:00
smc net/smc: Fix possible leaked pernet namespace in smc_init() 2022-11-02 20:42:09 -07:00
strparser
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sunrpc Revert "SUNRPC: Use RMW bitops in single-threaded hot paths" 2023-01-14 10:33:42 +01:00
switchdev
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tipc tipc: fix unexpected link reset due to discovery messages 2023-01-18 11:58:24 +01:00
tls bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:32:20 +01:00
unix unix: Fix race in SOCK_SEQPACKET's unix_dgram_sendmsg() 2022-12-31 13:32:54 +01:00
vmw_vsock net: vmw_vsock: vmci: Check memcpy_from_msg() 2022-12-31 13:32:26 +01:00
wireless wifi: cfg80211: Fix not unregister reg_pdev when load_builtin_regdb_keys() fails 2022-12-31 13:32:20 +01:00
x25 net/x25: Fix skb leak in x25_lapb_receive_frame() 2022-11-15 20:22:19 -08:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-10-03 17:44:18 -07:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2022-11-23 19:18:59 -08:00
Kconfig
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Kconfig.debug net: make NET_(DEV|NS)_REFCNT_TRACKER depend on NET 2022-09-20 14:23:56 -07:00
Makefile
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compat.c net: clear msg_get_inq in __get_compat_msghdr() 2022-09-20 08:23:20 -07:00
devres.c
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socket.c d_path pile 2022-10-06 16:55:41 -07:00
sysctl_net.c
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