CVE-2025-21808— net: xdp: Disallow attaching device-bound programs in generic mode
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2b3486bc2d237ec345b3942b7be5deabf8c8fed1< b1bc4a35a04cbeb85b6ef5911ec015baa424989f | affected |
2b3486bc2d237ec345b3942b7be5deabf8c8fed1< 557707906dd3e34b8a8c265f664d19f95799937e | affected | ||
2b3486bc2d237ec345b3942b7be5deabf8c8fed1< 5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1 | affected | ||
2b3486bc2d237ec345b3942b7be5deabf8c8fed1< 3595599fa8360bb3c7afa7ee50c810b4a64106ea | affected | ||
6.3 | affected | ||
< 6.3 | unaffected | ||
6.6.76≤ 6.6.* | unaffected | ||
6.12.13≤ 6.12.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2025-21808
Vulnerability Information
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Vulnerability Title
net: xdp: Disallow attaching device-bound programs in generic mode
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: xdp: Disallow attaching device-bound programs in generic mode Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes. Fix this by adding a check to disallow attaching device-bound programs in generic mode.
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，该漏洞源于未禁止在通用模式下附加设备绑定程序，可能导致崩溃。
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
II. Public POCs for CVE-2025-21808
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-21808 (4)
Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total
| CVE-2025-21756 | 7.8 HIGH | vsock: Keep the binding until socket destruction |
| CVE-2025-21770 | iommu: Fix potential memory leak in iopf_queue_remove_device() | |
| CVE-2025-21761 | openvswitch: use RCU protection in ovs_vport_cmd_fill_info() | |
| CVE-2025-21763 | neighbour: use RCU protection in __neigh_notify() | |
| CVE-2025-21762 | arp: use RCU protection in arp_xmit() | |
| CVE-2025-21764 | ndisc: use RCU protection in ndisc_alloc_skb() | |
| CVE-2025-21765 | ipv6: use RCU protection in ip6_default_advmss() | |
| CVE-2025-21766 | ipv4: use RCU protection in __ip_rt_update_pmtu() | |
| CVE-2025-21767 | clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context | |
| CVE-2025-21769 | ptp: vmclock: Add .owner to vmclock_miscdev_fops | |
| CVE-2025-21768 | net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels | |
| CVE-2025-21771 | sched_ext: Fix incorrect autogroup migration detection | |
| CVE-2025-21776 | USB: hub: Ignore non-compliant devices with too many configs or interfaces | |
| CVE-2025-21781 | batman-adv: fix panic during interface removal | |
| CVE-2025-21780 | drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() | |
| CVE-2025-21779 | KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel | |
| CVE-2025-21778 | tracing: Do not allow mmap() of persistent ring buffer | |
| CVE-2025-21777 | ring-buffer: Validate the persistent meta data subbuf array | |
| CVE-2025-21775 | can: ctucanfd: handle skb allocation failure | |
| CVE-2025-21773 | can: etas_es58x: fix potential NULL pointer dereference on udev->serial |
Showing top 20 of 177 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2025-21808
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