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CVE-2025-21663— net: stmmac: dwmac-tegra: Read iommu stream id from device tree

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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/stmmac模块中dwmac-tegra驱动未正确读取设备树中的IOMMU流ID。这可能导致软中断超时或内核崩溃。

CVSS 10.0 · Critical EPSS 0.41% · P35

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux d8ca113724e79b324f553914cefa9dd6961de152< 235419f0956e8c60e597aa1619ded8bda7460bb4 affected
d8ca113724e79b324f553914cefa9dd6961de152< b04d33cdbc958a3fd57f3544d4f78b99d9d11909 affected
d8ca113724e79b324f553914cefa9dd6961de152< 426046e2d62dd19533808661e912b8e8a9eaec16 affected
6.2 affected
< 6.2 unaffected
6.6.72≤ 6.6.* unaffected
6.12.10≤ 6.12.* unaffected
6.13≤ * unaffected
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I. Basic Information for CVE-2025-21663

Vulnerability Information
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Vulnerability Title
net: stmmac: dwmac-tegra: Read iommu stream id from device tree
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-tegra: Read iommu stream id from device tree Nvidia's Tegra MGBE controllers require the IOMMU "Stream ID" (SID) to be written to the MGBE_WRAP_AXI_ASID0_CTRL register. The current driver is hard coded to use MGBE0's SID for all controllers. This causes softirq time outs and kernel panics when using controllers other than MGBE0. Example dmesg errors when an ethernet cable is connected to MGBE1: [ 116.133290] tegra-mgbe 6910000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx [ 121.851283] tegra-mgbe 6910000.ethernet eth1: NETDEV WATCHDOG: CPU: 5: transmit queue 0 timed out 5690 ms [ 121.851782] tegra-mgbe 6910000.ethernet eth1: Reset adapter. [ 121.892464] tegra-mgbe 6910000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 121.905920] tegra-mgbe 6910000.ethernet eth1: PHY [stmmac-1:00] driver [Aquantia AQR113] (irq=171) [ 121.907356] tegra-mgbe 6910000.ethernet eth1: Enabling Safety Features [ 121.907578] tegra-mgbe 6910000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported [ 121.908399] tegra-mgbe 6910000.ethernet eth1: registered PTP clock [ 121.908582] tegra-mgbe 6910000.ethernet eth1: configuring for phy/10gbase-r link mode [ 125.961292] tegra-mgbe 6910000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx [ 181.921198] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 181.921404] rcu: 7-....: (1 GPs behind) idle=540c/1/0x4000000000000002 softirq=1748/1749 fqs=2337 [ 181.921684] rcu: (detected by 4, t=6002 jiffies, g=1357, q=1254 ncpus=8) [ 181.921878] Sending NMI from CPU 4 to CPUs 7: [ 181.921886] NMI backtrace for cpu 7 [ 181.922131] CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Kdump: loaded Not tainted 6.13.0-rc3+ #6 [ 181.922390] Hardware name: NVIDIA CTI Forge + Orin AGX/Jetson, BIOS 202402.1-Unknown 10/28/2024 [ 181.922658] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 181.922847] pc : handle_softirqs+0x98/0x368 [ 181.922978] lr : __do_softirq+0x18/0x20 [ 181.923095] sp : ffff80008003bf50 [ 181.923189] x29: ffff80008003bf50 x28: 0000000000000008 x27: 0000000000000000 [ 181.923379] x26: ffffce78ea277000 x25: 0000000000000000 x24: 0000001c61befda0 [ 181.924486] x23: 0000000060400009 x22: ffffce78e99918bc x21: ffff80008018bd70 [ 181.925568] x20: ffffce78e8bb00d8 x19: ffff80008018bc20 x18: 0000000000000000 [ 181.926655] x17: ffff318ebe7d3000 x16: ffff800080038000 x15: 0000000000000000 [ 181.931455] x14: ffff000080816680 x13: ffff318ebe7d3000 x12: 000000003464d91d [ 181.938628] x11: 0000000000000040 x10: ffff000080165a70 x9 : ffffce78e8bb0160 [ 181.945804] x8 : ffff8000827b3160 x7 : f9157b241586f343 x6 : eeb6502a01c81c74 [ 181.953068] x5 : a4acfcdd2e8096bb x4 : ffffce78ea277340 x3 : 00000000ffffd1e1 [ 181.960329] x2 : 0000000000000101 x1 : ffffce78ea277340 x0 : ffff318ebe7d3000 [ 181.967591] Call trace: [ 181.970043] handle_softirqs+0x98/0x368 (P) [ 181.974240] __do_softirq+0x18/0x20 [ 181.977743] ____do_softirq+0x14/0x28 [ 181.981415] call_on_irq_stack+0x24/0x30 [ 181.985180] do_softirq_own_stack+0x20/0x30 [ 181.989379] __irq_exit_rcu+0x114/0x140 [ 181.993142] irq_exit_rcu+0x14/0x28 [ 181.996816] el1_interrupt+0x44/0xb8 [ 182.000316] el1h_64_irq_handler+0x14/0x20 [ 182.004343] el1h_64_irq+0x80/0x88 [ 182.007755] cpuidle_enter_state+0xc4/0x4a8 (P) [ 182.012305] cpuidle_enter+0x3c/0x58 [ 182.015980] cpuidle_idle_call+0x128/0x1c0 [ 182.020005] do_idle+0xe0/0xf0 [ 182.023155] cpu_startup_entry+0x3c/0x48 [ 182.026917] secondary_start_kernel+0xdc/0x120 [ 182.031379] __secondary_switched+0x74/0x78 [ 212.971162] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 7-.... } 6103 jiffies s: 417 root: 0x80/. [ 212.985935] rcu: blocking rcu_node structures (internal RCU debug): [ 212.992758] Sending NMI from CPU 0 to CPUs 7: [ 212.998539] NMI backtrace for cpu 7 [ 213.004304] CPU: 7 UID: 0 PI ---truncated---
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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/stmmac模块中dwmac-tegra驱动未正确读取设备树中的IOMMU流ID。这可能导致软中断超时或内核崩溃。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux d8ca113724e79b324f553914cefa9dd6961de152 ~ 235419f0956e8c60e597aa1619ded8bda7460bb4 -
Linux Linux 6.2 -

II. Public POCs for CVE-2025-21663

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III. Intelligence Information for CVE-2025-21663

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Patches & Fixes for CVE-2025-21663 (3)

Same Patch Batch · Linux · 2025-01-21 · 25 CVEs total

CVE-2024-57932 9.8 CRITICAL gve: guard XDP xmit NDO on existence of xdp queues
CVE-2024-57936 9.8 CRITICAL RDMA/bnxt_re: Fix max SGEs for the Work Request
CVE-2025-21659 8.1 HIGH netdev: prevent accessing NAPI instances from another namespace
CVE-2025-21664 7.8 HIGH dm thin: make get_first_thin use rcu-safe list first function
CVE-2025-21661 7.8 HIGH gpio: virtuser: fix missing lookup table cleanups
CVE-2024-57945 7.8 HIGH riscv: mm: Fix the out of bound issue of vmemmap address
CVE-2024-57943 exfat: fix the new buffer was not zeroed before writing
CVE-2024-57946 virtio-blk: don't keep queue frozen during system suspend
CVE-2025-21662 net/mlx5: Fix variable not being completed when function returns
CVE-2025-21660 ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked
CVE-2025-21658 btrfs: avoid NULL pointer dereference if no valid extent tree
CVE-2025-21657 sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass()
CVE-2025-21656 hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur
CVE-2024-57944 iio: adc: ti-ads1298: Add NULL check in ads1298_init
CVE-2024-57930 tracing: Have process_string() also allow arrays
CVE-2024-57942 netfs: Fix ceph copy to cache on write-begin
CVE-2024-57941 netfs: Fix the (non-)cancellation of copy when cache is temporarily disabled
CVE-2024-57940 exfat: fix the infinite loop in exfat_readdir()
CVE-2024-57939 riscv: Fix sleeping in invalid context in die()
CVE-2024-57938 net/sctp: Prevent autoclose integer overflow in sctp_association_init()

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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