CVE-2025-38122: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2025-38122 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 53 · Related 49Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO gve_alloc_pending_packet() can return NULL, but gve_tx_add_skb_dqo() did not check for this case before dereferencing the returned pointer. Add a missing NULL check to prevent a potential NULL pointer dereference when allocation fails. This improves robustness in low-memory scenarios.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
+0.02 pp
From 0.17% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu134 products
- linux< 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1092.99 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.35-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < ae98a1787fdcb0096d122bc80d93c3c7d812c04b | ≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < 2e5ead9e4e91fbe7799bd38afd8904543be1cb51 | ≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < 7f6265fce3bd424ded666481b37f106d7915fb6b | ≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < a0319c9b1648a67511e947a596ca86888451c0a7 | ≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < c741a7ef68023ac800054e2131c3e22e647fd7e3 | ≥ a57e5de476be0b4b7f42beb6a21c19ad9c577aa3, < 12c331b29c7397ac3b03584e12902990693bc248 | 5.14
- linux_kernel≥ 5.14, < 5.15.186 | ≥ 5.16, < 6.1.142 | ≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3
3 vendors · 138 products
References
44 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory