CVE-2025-38109— net/mlx5: Fix ECVF vports unload on shutdown flow
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I. Basic Information for CVE-2025-38109
Vulnerability Information
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Vulnerability Title
net/mlx5: Fix ECVF vports unload on shutdown flow
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix ECVF vports unload on shutdown flow Fix shutdown flow UAF when a virtual function is created on the embedded chip (ECVF) of a BlueField device. In such case the vport acl ingress table is not properly destroyed. ECVF functionality is independent of ecpf_vport_exists capability and thus functions mlx5_eswitch_(enable|disable)_pf_vf_vports() should not test it when enabling/disabling ECVF vports. kernel log: [] refcount_t: underflow; use-after-free. [] WARNING: CPU: 3 PID: 1 at lib/refcount.c:28 refcount_warn_saturate+0x124/0x220 ---------------- [] Call trace: [] refcount_warn_saturate+0x124/0x220 [] tree_put_node+0x164/0x1e0 [mlx5_core] [] mlx5_destroy_flow_table+0x98/0x2c0 [mlx5_core] [] esw_acl_ingress_table_destroy+0x28/0x40 [mlx5_core] [] esw_acl_ingress_lgcy_cleanup+0x80/0xf4 [mlx5_core] [] esw_legacy_vport_acl_cleanup+0x44/0x60 [mlx5_core] [] esw_vport_cleanup+0x64/0x90 [mlx5_core] [] mlx5_esw_vport_disable+0xc0/0x1d0 [mlx5_core] [] mlx5_eswitch_unload_ec_vf_vports+0xcc/0x150 [mlx5_core] [] mlx5_eswitch_disable_sriov+0x198/0x2a0 [mlx5_core] [] mlx5_device_disable_sriov+0xb8/0x1e0 [mlx5_core] [] mlx5_sriov_detach+0x40/0x50 [mlx5_core] [] mlx5_unload+0x40/0xc4 [mlx5_core] [] mlx5_unload_one_devl_locked+0x6c/0xe4 [mlx5_core] [] mlx5_unload_one+0x3c/0x60 [mlx5_core] [] shutdown+0x7c/0xa4 [mlx5_core] [] pci_device_shutdown+0x3c/0xa0 [] device_shutdown+0x170/0x340 [] __do_sys_reboot+0x1f4/0x2a0 [] __arm64_sys_reboot+0x2c/0x40 [] invoke_syscall+0x78/0x100 [] el0_svc_common.constprop.0+0x54/0x184 [] do_el0_svc+0x30/0xac [] el0_svc+0x48/0x160 [] el0t_64_sync_handler+0xa4/0x12c [] el0t_64_sync+0x1a4/0x1a8 [] --[ end trace 9c4601d68c70030e ]---
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于net/mlx5在ECVF vports卸载时释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-38109
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Same Patch Batch · Linux · 2025-07-03 · 78 CVEs total
| CVE-2025-38129 | page_pool: Fix use-after-free in page_pool_recycle_in_ring | |
| CVE-2025-38128 | Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands | |
| CVE-2025-38114 | e1000: Move cancel_work_sync to avoid deadlock | |
| CVE-2025-38127 | ice: fix Tx scheduler error handling in XDP callback | |
| CVE-2025-38125 | net: stmmac: make sure that ptp_rate is not 0 before configuring EST | |
| CVE-2025-38126 | net: stmmac: make sure that ptp_rate is not 0 before configuring timestamping | |
| CVE-2025-38130 | drm/connector: only call HDMI audio helper plugged cb if non-null | |
| CVE-2025-38131 | coresight: prevent deactivate active config while enabling the config | |
| CVE-2025-38132 | coresight: holding cscfg_csdev_lock while removing cscfg from csdev | |
| CVE-2025-38133 | iio: adc: ad4851: fix ad4858 chan pointer handling | |
| CVE-2025-38124 | net: fix udp gso skb_segment after pull from frag_list | |
| CVE-2025-38122 | gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO | |
| CVE-2025-38123 | net: wwan: t7xx: Fix napi rx poll issue | |
| CVE-2025-38121 | wifi: iwlwifi: mld: avoid panic on init failure | |
| CVE-2025-38119 | scsi: core: ufs: Fix a hang in the error handler | |
| CVE-2025-38120 | netfilter: nf_set_pipapo_avx2: fix initial map fill | |
| CVE-2025-38118 | Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete | |
| CVE-2025-38117 | Bluetooth: MGMT: Protect mgmt_pending list with its own lock | |
| CVE-2025-38115 | net_sched: sch_sfq: fix a potential crash on gso_skb handling | |
| CVE-2025-38116 | wifi: ath12k: fix uaf in ath12k_core_init() |
Showing top 20 of 78 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2025-38109
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