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Xiang Mei cf074eca00 net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class 
might_sleep could be trigger in the atomic context in qfq_delete_class.

qfq_destroy_class was moved into atomic context locked
by sch_tree_lock to avoid a race condition bug on
qfq_aggregate. However, might_sleep could be triggered by
qfq_destroy_class, which introduced sleeping in atomic context (path:
qfq_destroy_class->qdisc_put->__qdisc_destroy->lockdep_unregister_key
->might_sleep).

Considering the race is on the qfq_aggregate objects, keeping
qfq_rm_from_agg in the lock but moving the left part out can solve
this issue.

Fixes: 5e28d5a3f7 ("net/sched: sch_qfq: Fix race condition on qfq_aggregate")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Xiang Mei <xmei5@asu.edu>
Link: https://patch.msgid.link/4a04e0cc-a64b-44e7-9213-2880ed641d77@sabinyo.mountain
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20250717230128.159766-1-xmei5@asu.edu
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 		2025-07-22 11:48:34 +02:00
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6lowpan
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9p netfs: Fix the request's work item to not require a ref 2025-05-21 14:35:20 +02:00
802 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
8021q net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime 2025-07-17 07:44:26 -07:00
appletalk net: appletalk: Fix use-after-free in AARP proxy probe 2025-07-21 16:55:08 -07:00
atm atm: clip: Fix NULL pointer dereference in vcc_sendmsg() 2025-07-09 19:09:36 -07:00
ax25 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
batman-adv treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
bluetooth Bluetooth: L2CAP: Fix attempting to adjust outgoing MTU 2025-07-17 10:26:53 -04:00
bpf selftests/bpf: Add test to access const void pointer argument in tracing program 2025-04-23 11:26:22 -07:00
bridge net: bridge: Do not offload IGMP/MLD messages 2025-07-17 07:46:41 -07:00
caif rtnetlink: Pack newlink() params into struct 2025-02-21 15:28:02 -08:00
can treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ceph A small CephFS encryption-related fix and a dead code cleanup. 2025-04-25 15:51:28 -07:00
core net: selftests: fix TCP packet checksum 2025-06-26 10:50:49 +02:00
dcb dcb: Use rtnl_register_many(). 2024-10-15 18:52:26 -07:00
devlink devlink: use DEVLINK_VAR_ATTR_TYPE_* instead of NLA_* in fmsg 2025-05-06 18:21:11 -07:00
dns_resolver
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dsa net: dsa: tag_brcm: legacy: fix pskb_may_pull length 2025-05-30 19:20:18 -07:00
ethernet
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ethtool Including fixes from bluetooth and wireless. 2025-06-12 09:50:36 -07:00
handshake module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
hsr treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ieee802154 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ife
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ipv4 net: fix segmentation after TCP/UDP fraglist GRO 2025-07-17 10:01:02 +02:00
ipv6 ipv6: mcast: Delay put pmc->idev in mld_del_delrec() 2025-07-16 18:33:39 -07:00
iucv s390: Convert MACHINE_IS_[LPAR|VM|KVM], etc, machine_is_[lpar|vm|kvm]() 2025-03-04 17:18:07 +01:00
kcm kcm: replace call_rcu by kfree_rcu for simple kmem_cache_free callback 2024-10-15 10:50:21 -07:00
key xfrm: Migrate offload configuration 2025-04-17 11:00:03 +02:00
l2tp net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
l3mdev net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
lapb treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
llc treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
mac80211 wifi: mac80211: add the virtual monitor after reconfig complete 2025-07-10 13:27:14 +02:00
mac802154 mac802154: Switch to use hrtimer_setup() 2025-02-18 10:35:44 +01:00
mctp net: mctp: use nlmsg_payload() for netlink message data extraction 2025-05-26 17:38:27 +02:00
mpls mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu(). 2025-06-17 18:21:59 -07:00
mptcp mptcp: reset fallback status gracefully at disconnect() time 2025-07-15 17:31:25 -07:00
ncsi treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
netfilter netfilter: nf_conntrack: fix crash due to removal of uninitialised entry 2025-07-17 11:23:33 +02:00
netlabel calipso: unlock rcu before returning -EAFNOSUPPORT 2025-06-05 08:03:38 -07:00
netlink netlink: make sure we allow at least one dump skb 2025-07-11 07:31:47 -07:00
netrom treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
nfc NFC: nci: uart: Set tty->disc_data only in success path 2025-06-19 08:33:54 -07:00
nsh
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openvswitch openvswitch: Allocate struct ovs_pcpu_storage dynamically 2025-06-17 14:47:46 +02:00
packet af_packet: fix soft lockup issue caused by tpacket_snd() 2025-07-13 01:28:51 +01:00
phonet phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept() 2025-07-17 07:30:27 -07:00
psample psample: adjust size if rate_as_probability is set 2024-12-18 19:23:04 -08:00
qrtr net: qrtr: Update packets cloning when broadcasting 2024-09-24 10:48:16 +02:00
rds replace strncpy with strscpy_pad 2025-05-26 22:28:44 +02:00
rfkill net: rfkill: gpio: allow booting in blocked state 2025-02-11 11:55:55 +01:00
rose rose: fix dangling neighbour pointers in rose_rt_device_down() 2025-07-01 19:28:48 -07:00
rxrpc rxrpc: Fix to use conn aborts for conn-wide failures 2025-07-17 07:50:48 -07:00
sched net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class 2025-07-22 11:48:34 +02:00
sctp treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
shaper net: add netdev_lock() / netdev_unlock() helpers 2025-01-15 19:13:33 -08:00
smc smc: Fix various oops due to inet_sock type confusion. 2025-07-14 17:12:42 -07:00
strparser strparser: Remove unused __strp_unpause 2025-05-05 16:48:12 -07:00
sunrpc sunrpc: fix loop in gss seqno cache 2025-06-23 11:01:15 -04:00
switchdev net: switchdev: Convert blocking notification chain to a raw one 2025-03-11 11:30:28 +01:00
tipc tipc: Fix use-after-free in tipc_conn_close(). 2025-07-07 18:38:24 -07:00
tls tls: always refresh the queue when reading sock 2025-07-17 07:39:02 -07:00
unix af_unix: Don't set -ECONNRESET for consumed OOB skb. 2025-06-24 10:10:07 +02:00
vmw_vsock vsock: Fix IOCTL_VM_SOCKETS_GET_LOCAL_CID to check also `transport_local` 2025-07-08 08:39:49 -07:00
wireless wifi: prevent A-MSDU attacks in mesh networks 2025-07-07 10:54:13 +02:00
x25 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-22 09:42:41 -07:00
xfrm treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
Kconfig net: Kconfig NET_DEVMEM selects GENERIC_ALLOCATOR 2025-05-27 17:31:42 -07:00
Kconfig.debug rtnetlink: Add per-netns RTNL. 2024-10-08 15:16:59 +02:00
Makefile net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
compat.c
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devres.c
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socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-03-26 09:32:10 -07:00
sysctl_net.c
…