Stanislav Fomichev 04efcee6ef net: hold instance lock during NETDEV_CHANGE ... Cosmin reports an issue with ipv6_add_dev being called from NETDEV_CHANGE notifier: [ 3455.008776] ? ipv6_add_dev+0x370/0x620 [ 3455.010097] ipv6_find_idev+0x96/0xe0 [ 3455.010725] addrconf_add_dev+0x1e/0xa0 [ 3455.011382] addrconf_init_auto_addrs+0xb0/0x720 [ 3455.013537] addrconf_notify+0x35f/0x8d0 [ 3455.014214] notifier_call_chain+0x38/0xf0 [ 3455.014903] netdev_state_change+0x65/0x90 [ 3455.015586] linkwatch_do_dev+0x5a/0x70 [ 3455.016238] rtnl_getlink+0x241/0x3e0 [ 3455.019046] rtnetlink_rcv_msg+0x177/0x5e0 Similarly, linkwatch might get to ipv6_add_dev without ops lock: [ 3456.656261] ? ipv6_add_dev+0x370/0x620 [ 3456.660039] ipv6_find_idev+0x96/0xe0 [ 3456.660445] addrconf_add_dev+0x1e/0xa0 [ 3456.660861] addrconf_init_auto_addrs+0xb0/0x720 [ 3456.661803] addrconf_notify+0x35f/0x8d0 [ 3456.662236] notifier_call_chain+0x38/0xf0 [ 3456.662676] netdev_state_change+0x65/0x90 [ 3456.663112] linkwatch_do_dev+0x5a/0x70 [ 3456.663529] __linkwatch_run_queue+0xeb/0x200 [ 3456.663990] linkwatch_event+0x21/0x30 [ 3456.664399] process_one_work+0x211/0x610 [ 3456.664828] worker_thread+0x1cc/0x380 [ 3456.665691] kthread+0xf4/0x210 Reclassify NETDEV_CHANGE as a notifier that consistently runs under the instance lock. Link: https://lore.kernel.org/netdev/aac073de8beec3e531c86c101b274d434741c28e.camel@nvidia.com/ Reported-by: Cosmin Ratiu <cratiu@nvidia.com> Tested-by: Cosmin Ratiu <cratiu@nvidia.com> Fixes: ad7c7b2172 ("net: hold netdev instance lock during sysfs operations") Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250404161122.3907628-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-04-07 11:13:39 -07:00
..
acpi	misc: Constify amba_id table	2025-03-29 18:25:34 -07:00
asm-generic	mm: pgtable: remove tlb_remove_page_ptdesc()	2025-04-01 15:17:14 -07:00
clocksource
crypto	This update includes the following changes:	2025-03-29 10:01:55 -07:00
cxl	cxl for v6.15	2025-04-02 20:04:43 -07:00
drm	Rust changes for v6.15	2025-03-30 17:03:26 -07:00
dt-bindings	Char/Misc/IIO driver updates for 6.15-rc1	2025-04-01 11:26:08 -07:00
hyperv	x86/hyperv: Add comments about hv_vpset and var size hypercall input args	2025-03-21 18:24:22 +00:00
keys
kunit
kvm
linux	net: hold instance lock during NETDEV_CHANGE	2025-04-07 11:13:39 -07:00
math-emu
media
memory
misc
net	net: move mp dev config validation to __net_mp_open_rxq()	2025-04-04 07:35:38 -07:00
pcmcia
ras
rdma
rv
scsi
soc	soc: driver updates for 6.15, part 1	2025-03-27 09:05:55 -07:00
sound	soundwire updates for 6.15	2025-04-01 12:43:13 -07:00
target
trace	NFS client updates for Linux 6.15	2025-04-02 17:06:31 -07:00
uapi	io_uring-6.15-20250403	2025-04-03 15:48:58 -07:00
ufs
vdso
video
xen
Kbuild