Sebastian Andrzej Siewior 25718fdcbd net: gro_cells: Use nested-BH locking for gro_cell ...

The gro_cell data structure is per-CPU variable and relies on disabled
BH for its locking. Without per-CPU locking in local_bh_disable() on
PREEMPT_RT this data structure requires explicit locking.

Add a local_lock_t to the data structure and use
local_lock_nested_bh() for locking. This change adds only lockdep
coverage and does not alter the functional behaviour for !PREEMPT_RT.

Reported-by: syzbot+8715dd783e9b0bef43b1@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/68c6c3b1.050a0220.2ff435.0382.GAE@google.com/
Fixes: 3253cb49cb ("softirq: Allow to drop the softirq-BKL lock on PREEMPT_RT")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20251009094338.j1jyKfjR@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

2025-10-13 17:33:32 -07:00

..

bpf_sk_storage.c

bpf: Remove unnecessary BTF lookups in bpf_sk_storage_tracing_allowed

2025-01-29 08:51:51 -08:00

datagram.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-08-29 11:48:01 -07:00

dev_addr_lists_test.c

net: dev_addr_lists: move locking out of init/exit in kunit

2024-04-15 10:26:35 +01:00

dev_addr_lists.c

net: s/dev_pre_changeaddr_notify/netif_pre_changeaddr_notify/

2025-07-18 17:27:47 -07:00

dev_api.c

net: define an enum for the napi threaded state

2025-07-24 18:34:55 -07:00

dev_ioctl.c

net: dev_ioctl: take ops lock in hwtstamp lower paths

2025-09-09 18:13:36 -07:00

dev.c

net: add NUMA awareness to skb_attempt_defer_free()

2025-09-30 15:45:53 +02:00

dev.h

net: add NUMA awareness to skb_attempt_defer_free()

2025-09-30 15:45:53 +02:00

devmem.c

net: devmem: pull out dma_dev out of net_devmem_bind_dmabuf

2025-08-28 16:05:32 -07:00

devmem.h

net: devmem: pull out dma_dev out of net_devmem_bind_dmabuf

2025-08-28 16:05:32 -07:00

drop_monitor.c

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08 09:07:37 +02:00

dst_cache.c

net: dst: annotate data-races around dst->obsolete

2025-07-02 14:32:29 -07:00

dst.c

net: dst: introduce dst->dev_rcu

2025-08-29 19:36:31 -07:00

failover.c

net: failover: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf

2022-12-12 15:18:25 -08:00

fib_notifier.c

net: do not acquire rtnl in fib_seq_sum()

2024-10-11 15:35:05 -07:00

fib_rules.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-04-17 12:26:50 -07:00

filter.c

Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2025-10-02 15:17:01 -07:00

flow_dissector.c

net: remove '__' from __skb_flow_get_ports()

2025-02-24 14:27:53 -08:00

flow_offload.c

tc: flower: Enable offload support IPSEC SPI field.

2023-08-02 10:09:32 +01:00

gen_estimator.c

net_sched: gen_estimator: fix est_timer() vs CONFIG_PREEMPT_RT=y

2025-08-29 19:04:20 -07:00

gen_stats.c

net: Remove the obsolte u64_stats_fetch_*_irq() users (net).

2022-10-28 20:13:54 -07:00

gro_cells.c

net: gro_cells: Use nested-BH locking for gro_cell

2025-10-13 17:33:32 -07:00

gro.c

tcp: add datapath logic for PSP with inline key exchange

2025-09-18 12:32:06 +02:00

gso.c

net: introduce struct net_hotdata

2024-03-07 21:12:41 -08:00

hotdata.c

tcp: move tcp_memory_allocated into net_aligned_data

2025-07-02 14:22:02 -07:00

hwbm.c

net: hwbm: Make the hwbm_pool lock a mutex

2019-06-09 19:40:10 -07:00

ieee8021q_helpers.c

net: ieee8021q: fix insufficient table-size assertion

2025-07-01 12:55:49 +02:00

link_watch.c

net: replace use of system_unbound_wq with system_dfl_wq

2025-09-22 17:40:30 -07:00

lock_debug.c

netdev: fix the locking for netdev notifications

2025-04-17 18:55:14 -07:00

lwt_bpf.c

ipv4: Convert ->flowi4_tos to dscp_t.

2025-08-26 17:34:31 -07:00

lwtunnel.c

inet: Remove rtnl_is_held arg of lwtunnel_valid_encap_type(_attr)?().

2025-05-20 19:18:24 -07:00

Makefile

queue_api: add support for fetching per queue DMA dev

2025-08-28 16:05:31 -07:00

mp_dmabuf_devmem.h

memory-provider: dmabuf devmem memory provider

2024-09-11 20:44:31 -07:00

neighbour.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-07-26 11:49:45 -07:00

net_namespace.c

Merge tag 'namespace-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2025-09-29 11:20:29 -07:00

net_test.c

pfcp: always set pfcp metadata

2024-04-01 10:49:28 +01:00

net-procfs.c

net: use NUMA drop counters for softnet_data.dropped

2025-09-14 11:35:17 -07:00

net-sysfs.c

Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2025-10-02 15:17:01 -07:00

net-sysfs.h

net: remove RTNL use for /proc/sys/net/core/rps_default_mask

2025-07-07 18:42:12 -07:00

net-traces.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

netclassid_cgroup.c

net, bpf: Fix RCU usage in task_cls_state() for BPF programs

2025-06-11 21:30:29 +02:00

netdev_queues.c

queue_api: add support for fetching per queue DMA dev

2025-08-28 16:05:31 -07:00

netdev_rx_queue.c

net: add helper to pre-check if PP for an Rx queue will be unreadable

2025-09-04 10:19:17 +02:00

netdev-genl-gen.c

net: define an enum for the napi threaded state

2025-07-24 18:34:55 -07:00

netdev-genl-gen.h

net: devmem: TCP tx netlink api

2025-05-13 11:12:48 +02:00

netdev-genl.c

net: devmem: allow binding on rx queues with same DMA devices

2025-08-28 16:05:32 -07:00

netevent.c

net: core: Correct function name netevent_unregister_notifier() in the kerneldoc

2021-03-28 17:56:56 -07:00

netmem_priv.h

page_pool: Track DMA-mapped pages and unmap them when destroying the pool

2025-04-14 16:30:29 -07:00

netpoll.c

net: netpoll: use synchronize_net() instead of synchronize_rcu()

2025-09-19 17:52:06 -07:00

netprio_cgroup.c

bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode

2021-09-13 16:35:58 -07:00

of_net.c

net: Explicitly include correct DT includes

2023-07-27 20:33:16 -07:00

page_pool_priv.h

net: page_pool: don't try to stash the napi id

2025-01-27 14:37:41 -08:00

page_pool_user.c

net: use napi_id_valid helper

2025-02-17 16:43:04 -08:00

page_pool.c

page_pool: Fix PP_MAGIC_MASK to avoid crashing on some 32-bit arches

2025-10-06 12:14:04 -07:00

pktgen.c

net: pktgen: Use min()/min_t() to improve pktgen_finalize_skb()

2025-08-21 10:12:11 +02:00

ptp_classifier.c

ptp: Add generic PTP is_sync() function

2022-03-07 11:31:34 +00:00

request_sock.c

tcp: Remove stale locking comment for TFO.

2025-09-23 18:21:36 -07:00

rtnetlink.c

net: rtnetlink: fix typo in rtnl_unregister_all() comment

2025-09-29 18:31:08 -07:00

scm.c

scm: use masked_user_access_begin() in put_cmsg()

2025-09-29 18:03:42 -07:00

secure_seq.c

net: Retire DCCP socket.

2025-04-11 18:58:10 -07:00

selftests.c

net: selftests: add PHY-loopback test for bad TCP checksums

2025-07-18 17:19:46 -07:00

skb_fault_injection.c

net: Implement fault injection forcing skb reallocation

2024-11-12 12:05:33 +01:00

skbuff.c

net: add NUMA awareness to skb_attempt_defer_free()

2025-09-30 15:45:53 +02:00

skmsg.c

net: replace use of system_wq with system_percpu_wq

2025-09-22 17:40:30 -07:00

sock_destructor.h

skb_expand_head() adjust skb->truesize incorrectly

2021-10-22 12:35:51 -07:00

sock_diag.c

net: WQ_PERCPU added to alloc_workqueue users

2025-09-22 17:40:30 -07:00

sock_map.c

bpf: Remove attach_type in sockmap_link

2025-07-11 10:51:55 -07:00

sock_reuseport.c

net: core: annotate socks of struct sock_reuseport with __counted_by

2024-08-02 17:16:59 -07:00

sock.c

net: move sk->sk_err_soft and sk->sk_sndbuf

2025-09-22 17:55:24 -07:00

stream.c

net: stream: add description for sk_stream_write_space()

2025-07-18 16:57:21 -07:00

sysctl_net_core.c

net: remove RTNL use for /proc/sys/net/core/rps_default_mask

2025-07-07 18:42:12 -07:00

timestamping.c

net: Add the possibility to support a selected hwtstamp in netdevice

2024-12-16 12:51:40 +00:00

tso.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

utils.c

net: Fix checksum update for ILA adj-transport

2025-05-30 19:53:51 -07:00

xdp.c

net: xdp: pass full flags to xdp_update_skb_shared_info()

2025-09-11 12:00:20 +02:00