CVE-2025-21649
MEDIUMDescription
In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix kernel crash when 1588 is sent on HIP08 devices Currently, HIP08 devices does not register the ptp devices, so the hdev->ptp is NULL. But the tx process would still try to set hardware time stamp info with SKBTX_HW_TSTAMP flag and cause a kernel crash. [ 128.087798] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018 ... [ 128.280251] pc : hclge_ptp_set_tx_info+0x2c/0x140 [hclge] [ 128.286600] lr : hclge_ptp_set_tx_info+0x20/0x140 [hclge] [ 128.292938] sp : ffff800059b93140 [ 128.297200] x29: ffff800059b93140 x28: 0000000000003280 [ 128.303455] x27: ffff800020d48280 x26: ffff0cb9dc814080 [ 128.309715] x25: ffff0cb9cde93fa0 x24: 0000000000000001 [ 128.315969] x23: 0000000000000000 x22: 0000000000000194 [ 128.322219] x21: ffff0cd94f986000 x20: 0000000000000000 [ 128.328462] x19: ffff0cb9d2a166c0 x18: 0000000000000000 [ 128.334698] x17: 0000000000000000 x16: ffffcf1fc523ed24 [ 128.340934] x15: 0000ffffd530a518 x14: 0000000000000000 [ 128.347162] x13: ffff0cd6bdb31310 x12: 0000000000000368 [ 128.353388] x11: ffff0cb9cfbc7070 x10: ffff2cf55dd11e02 [ 128.359606] x9 : ffffcf1f85a212b4 x8 : ffff0cd7cf27dab0 [ 128.365831] x7 : 0000000000000a20 x6 : ffff0cd7cf27d000 [ 128.372040] x5 : 0000000000000000 x4 : 000000000000ffff [ 128.378243] x3 : 0000000000000400 x2 : ffffcf1f85a21294 [ 128.384437] x1 : ffff0cb9db520080 x0 : ffff0cb9db500080 [ 128.390626] Call trace: [ 128.393964] hclge_ptp_set_tx_info+0x2c/0x140 [hclge] [ 128.399893] hns3_nic_net_xmit+0x39c/0x4c4 [hns3] [ 128.405468] xmit_one.constprop.0+0xc4/0x200 [ 128.410600] dev_hard_start_xmit+0x54/0xf0 [ 128.415556] sch_direct_xmit+0xe8/0x634 [ 128.420246] __dev_queue_xmit+0x224/0xc70 [ 128.425101] dev_queue_xmit+0x1c/0x40 [ 128.429608] ovs_vport_send+0xac/0x1a0 [openvswitch] [ 128.435409] do_output+0x60/0x17c [openvswitch] [ 128.440770] do_execute_actions+0x898/0x8c4 [openvswitch] [ 128.446993] ovs_execute_actions+0x64/0xf0 [openvswitch] [ 128.453129] ovs_dp_process_packet+0xa0/0x224 [openvswitch] [ 128.459530] ovs_vport_receive+0x7c/0xfc [openvswitch] [ 128.465497] internal_dev_xmit+0x34/0xb0 [openvswitch] [ 128.471460] xmit_one.constprop.0+0xc4/0x200 [ 128.476561] dev_hard_start_xmit+0x54/0xf0 [ 128.481489] __dev_queue_xmit+0x968/0xc70 [ 128.486330] dev_queue_xmit+0x1c/0x40 [ 128.490856] ip_finish_output2+0x250/0x570 [ 128.495810] __ip_finish_output+0x170/0x1e0 [ 128.500832] ip_finish_output+0x3c/0xf0 [ 128.505504] ip_output+0xbc/0x160 [ 128.509654] ip_send_skb+0x58/0xd4 [ 128.513892] udp_send_skb+0x12c/0x354 [ 128.518387] udp_sendmsg+0x7a8/0x9c0 [ 128.522793] inet_sendmsg+0x4c/0x8c [ 128.527116] __sock_sendmsg+0x48/0x80 [ 128.531609] __sys_sendto+0x124/0x164 [ 128.536099] __arm64_sys_sendto+0x30/0x5c [ 128.540935] invoke_syscall+0x50/0x130 [ 128.545508] el0_svc_common.constprop.0+0x10c/0x124 [ 128.551205] do_el0_svc+0x34/0xdc [ 128.555347] el0_svc+0x20/0x30 [ 128.559227] el0_sync_handler+0xb8/0xc0 [ 128.563883] el0_sync+0x160/0x180
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 8% of all known CVEs.
References
Related Vulnerabilities
Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-21758 | High | 7.5 | 92% | - | Fix |
| CVE-2023-21547 | High | 7.5 | 88% | - | Fix |
| CVE-2014-3470 | Medium | 4.3 | 86% | - | Fix |
| CVE-2021-44224 | High | 8.2 | 82% | - | Fix |
| CVE-2016-0742 | High | 7.5 | 82% | - | Fix |
| CVE-2009-1386 | Medium | 5.0 | 80% | - | Fix |
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-01.