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CVE-2025-39990— bpf: Check the helper function is valid in get_helper_proto

EPSS 0.03% · P10
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I. Basic Information for CVE-2025-39990

Vulnerability Information
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Vulnerability Title
bpf: Check the helper function is valid in get_helper_proto
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Check the helper function is valid in get_helper_proto kernel test robot reported verifier bug [1] where the helper func pointer could be NULL due to disabled config option. As Alexei suggested we could check on that in get_helper_proto directly. Marking tail_call helper func with BPF_PTR_POISON, because it is unused by design. [1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com
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，该漏洞源于未验证helper函数有效性，可能导致空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux f470378c7562a2818b45ed11c98973f2b89eedd3 ~ 3d429cb1278e995e22995ef117fa96d223a67e93 -
LinuxLinux 5.8 -

II. Public POCs for CVE-2025-39990

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III. Intelligence Information for CVE-2025-39990

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Same Patch Batch · Linux · 2025-10-15 · 34 CVEs total

CVE-2025-39973i40e: add validation for ring_len param
CVE-2025-39981Bluetooth: MGMT: Fix possible UAFs
CVE-2025-39979net/mlx5: fs, fix UAF in flow counter release
CVE-2025-39980nexthop: Forbid FDB status change while nexthop is in a group
CVE-2025-39978octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
CVE-2025-39977futex: Prevent use-after-free during requeue-PI
CVE-2025-39976futex: Use correct exit on failure from futex_hash_allocate_default()
CVE-2025-39975smb: client: fix wrong index reference in smb2_compound_op()
CVE-2025-39974tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit()
CVE-2025-39982Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
CVE-2025-39972i40e: fix idx validation in i40e_validate_queue_map
CVE-2025-39970i40e: fix input validation logic for action_meta
CVE-2025-39971i40e: fix idx validation in config queues msg
CVE-2025-39969i40e: fix validation of VF state in get resources
CVE-2025-39968i40e: add max boundary check for VF filters
CVE-2025-39967fbcon: fix integer overflow in fbcon_do_set_font
CVE-2025-39966iommufd: Fix race during abort for file descriptors
CVE-2025-40000wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait()
CVE-2025-39984net: tun: Update napi->skb after XDP process
CVE-2025-39983Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39990

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