Dragos Tatulea 894e036a24 net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list ... mlx5_query_nic_vport_mac_list() sizes its firmware command buffer using the PF's log_max_current_uc/mc_list capabilities. When querying a VF vport with a larger configured max (via devlink), the firmware response can overflow this buffer: BUG: KASAN: slab-out-of-bounds in mlx5_query_nic_vport_mac_list+0x453/0x4c0 [mlx5_core] Read of size 4 at addr ff1100013ffc8a12 by task kworker/u96:2/385 CPU: 12 UID: 0 PID: 385 Comm: kworker/u96:2 Not tainted 7.0.0-rc6+ #1 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009) Workqueue: mlx5_esw_wq esw_vport_change_handler [mlx5_core] Call Trace: <TASK> dump_stack_lvl+0x69/0xa0 print_report+0x176/0x4e4 kasan_report+0xc8/0x100 mlx5_query_nic_vport_mac_list+0x453/0x4c0 [mlx5_core] esw_update_vport_addr_list+0x2e3/0xda0 [mlx5_core] esw_vport_change_handle_locked+0xa1f/0x1060 [mlx5_core] esw_vport_change_handler+0x6a/0x90 [mlx5_core] process_one_work+0x87f/0x15e0 worker_thread+0x62b/0x1020 kthread+0x375/0x490 ret_from_fork+0x4dc/0x810 ret_from_fork_asm+0x11/0x20 </TASK> Fix by querying the vport's own HCA caps to size the buffer correctly. Refactor the function to allocate and return the MAC list internally, removing the caller's dependency on knowing the correct max. Fixes: e16aea2744 ("net/mlx5: Introduce access functions to modify/query vport mac lists") Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260604135849.458060-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2026-06-08 18:56:18 -07:00
..
acpi	ACPI: button: Enable wakeup GPEs for ACPI buttons at probe time	2026-05-25 09:52:34 +02:00
asm-generic	ring-buffer: Flush and stop persistent ring buffer on panic	2026-05-21 08:20:58 -04:00
clocksource
crypto	crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks	2026-05-20 16:36:45 -07:00
cxl
drm	Short summary of fixes pull:	2026-05-22 07:01:04 +10:00
dt-bindings
hyperv
keys
kunit	kunit: fix use-after-free in debugfs when using kunit.filter	2026-05-21 10:45:49 -06:00
kvm
linux	net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list	2026-06-08 18:56:18 -07:00
math-emu
media
memory
misc
net	net/sched: fix pedit partial COW leading to page cache corruption	2026-06-04 08:29:02 -07:00
pcmcia
ras
rdma	RDMA/core: Do not read wild stack memory in uverbs_get_handler_fn()	2026-05-19 19:32:48 -03:00
rv
scsi
soc
sound
target
trace	Including fixes from Bluetooth, wireless and netfilter.	2026-05-21 14:39:12 -07:00
uapi	soc: fixes for 7.1, part 2	2026-06-02 10:54:11 -07:00
ufs
vdso
video
xen	xen/arm: Replace __ASSEMBLY__ with __ASSEMBLER__ in interface.h	2026-05-12 17:31:38 +02:00
Kbuild