High 7.1Published Jan 19, 2025

CVE-2025-21650net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue

Updated under an hour ago (2026-10-22 02:40 UTC)

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In the Linux kernel, the following vulnerability has been resolved: net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue The TQP BAR space is divided into two segments. TQPs 0-1023 and TQPs 1024-1279 are in different BAR space addresses. However, hclge_fetch_pf_reg does not distinguish the tqp space information when reading the tqp space information. When the number of TQPs is greater than 1024, access bar space overwriting occurs. The problem of different segments has been considered during the initialization of tqp.io_base. Therefore, tqp.io_base is directly used when the queue is read in hclge_fetch_pf_reg. The error message: Unable to handle kernel paging request at virtual address ffff800037200000 pc : hclge_fetch_pf_reg+0x138/0x250 [hclge] lr : hclge_get_regs+0x84/0x1d0 [hclge] Call trace: hclge_fetch_pf_reg+0x138/0x250 [hclge] hclge_get_regs+0x84/0x1d0 [hclge] hns3_get_regs+0x2c/0x50 [hns3] ethtool_get_regs+0xf4/0x270 dev_ethtool+0x674/0x8a0 dev_ioctl+0x270/0x36c sock_do_ioctl+0x110/0x2a0 sock_ioctl+0x2ac/0x530 __arm64_sys_ioctl+0xa8/0x100 invoke_syscall+0x4c/0x124 el0_svc_common.constprop.0+0x140/0x15c do_el0_svc+0x30/0xd0 el0_svc+0x1c/0x2c el0_sync_handler+0xb0/0xb4 el0_sync+0x168/0x180

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 939ccd107ffcade20c9c7055a2e7ae0fd724fb72 before a85246635466752b9af72188e4a839541120d952; 939ccd107ffcade20c9c7055a2e7ae0fd724fb72 builds before 0575baa733fc4219f230aef22d5bc35d922f1e9a; from 939ccd107ffcade20c9c7055a2e7ae0fd724fb72 before 7997ddd46c54408bcba5e37fe18b4d832e45d4d4; df34972a33d268a7113c119fe4e4b07a6819aa0c; 2b1fff96a297034f03466cfecda9824adafe16ed; from 6.4.16 before 6.5; from 6.5.3 before 6.6	CNA record
linux linux_kernel linux:linux_kernel	from 6.4.16 before 6.5; from 6.5.3 before 6.12.10; 6.13; 6.13; 6.13; 6.13; 6.13; 6.13	NVD

References

https://git.kernel.org/stable/c/a85246635466752b9af72188e4a839541120d952
https://git.kernel.org/stable/c/0575baa733fc4219f230aef22d5bc35d922f1e9apatch
https://git.kernel.org/stable/c/7997ddd46c54408bcba5e37fe18b4d832e45d4d4patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.