9.8

CVE-2025-38123: linux NULL Pointer Dereference

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2025-38123DEBIAN-CVE-2025-38123
Published 03-07-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-38123 is a critical (CVSS 9.8) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 41 · Related 39
MGASA-2025-0218MGASA-2025-0219OPENSUSE-SU-2025:20081-1SUSE-SU-2025:02853-1SUSE-SU-2025:02923-1SUSE-SU-2025:02969-1

Timeline

  1. 03-07-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: Fix napi rx poll issue When driver handles the napi rx polling requests, the netdev might have been released by the dellink logic triggered by the disconnect operation on user plane. However, in the logic of processing skb in polling, an invalid netdev is still being used, which causes a panic. BUG: kernel NULL pointer dereference, address: 00000000000000f1 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:dev_gro_receive+0x3a/0x620 [...] Call Trace: <IRQ> ? __die_body+0x68/0xb0 ? page_fault_oops+0x379/0x3e0 ? exc_page_fault+0x4f/0xa0 ? asm_exc_page_fault+0x22/0x30 ? __pfx_t7xx_ccmni_recv_skb+0x10/0x10 [mtk_t7xx (HASH:1400 7)] ? dev_gro_receive+0x3a/0x620 napi_gro_receive+0xad/0x170 t7xx_ccmni_recv_skb+0x48/0x70 [mtk_t7xx (HASH:1400 7)] t7xx_dpmaif_napi_rx_poll+0x590/0x800 [mtk_t7xx (HASH:1400 7)] net_rx_action+0x103/0x470 irq_exit_rcu+0x13a/0x310 sysvec_apic_timer_interrupt+0x56/0x90 </IRQ>

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

+0.06 pp

From 0.41% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu119 products
  • linux< 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5545b7b9f294de7f95ec6a7cb1de0db52296001c, < cc89f457d9133a558d4e8ef26dc20843c2d12073 | ≥ 5545b7b9f294de7f95ec6a7cb1de0db52296001c, < e2df04e69c3f10b412f54be036dd0ed3b14756cf | ≥ 5545b7b9f294de7f95ec6a7cb1de0db52296001c, < 66542e9430c625f878a5b5dc0fe41e3458d614bf | ≥ 5545b7b9f294de7f95ec6a7cb1de0db52296001c, < 905fe0845bb27e4eed2ca27ea06e6c4847f1b2b1 | 6.2
  • linux_kernel≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3
Debian1 product
  • linux< 6.12.35-1

3 vendors · 122 products

References

32 links
Show all 32 references