CVE-2025-37992: debian debian_linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed

AliasesUBUNTU-CVE-2025-37992DEBIAN-CVE-2025-37992

Published 26-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-37992 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.3% of scored vulnerabilities.

Overall risk

22/100

0100

Low · default modelHow is this calculated?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.21%

0%100%

Low · +0.01 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

26-05-2025
PublishedVulnerability first disclosed.
11-05-2026
Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net_sched: Flush gso_skb list too during ->change() Previously, when reducing a qdisc's limit via the ->change() operation, only the main skb queue was trimmed, potentially leaving packets in the gso_skb list. This could result in NULL pointer dereference when we only check sch->limit against sch->q.qlen. This patch introduces a new helper, qdisc_dequeue_internal(), which ensures both the gso_skb list and the main queue are properly flushed when trimming excess packets. All relevant qdiscs (codel, fq, fq_codel, fq_pie, hhf, pie) are updated to use this helper in their ->change() routines.

CVSS metrics

3 scores · 3 sources · 1 version

v3.15.5

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026

EPSS score

0.21%

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

CWE-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.

Affected systems

Ubuntu144 products

linuxAll versions (No fix recorded) | < 5.15.0-144.157 | < 6.8.0-100.100
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded) | < 5.15.0-1088.95 | < 6.8.0-1046.49
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1088.95~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14< 6.14.0-1011.11~24.04.1
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8< 6.8.0-1046.49~22.04.1
linux-aws-fipsAll versions (No fix recorded) | < 5.15.0-1088.95+fips1 | < 6.8.0-1046.49+fips1
linux-aws-hweAll versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.15.0-1094.103 | < 6.8.0-1046.52
linux-azure-4.15All versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1094.103~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8< 6.8.0-1051.57~22.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1094.103.1 | < 6.8.0-1046.53
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8< 6.8.0-1046.53~22.04.1
linux-azure-fipsAll versions (No fix recorded) | < 5.15.0-1094.103+fips1 | < 6.8.0-1046.52+fips1
linux-azure-nvidiaAll versions (No fix recorded)
linux-bluefieldAll versions (No fix recorded) | < 5.15.0-1072.74 | < 6.8.0-1016.20
linux-fipsAll versions (No fix recorded) | < 5.15.0-144.157+fips1 | < 6.8.0-100.100+fips1
linux-gcpAll versions (No fix recorded) | < 5.15.0-1087.96 | < 6.8.0-1047.50
linux-gcp-4.15All versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1087.96~20.04.2
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14< 6.14.0-1014.15~24.04.1
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8< 6.8.0-1047.50~22.04.2
linux-gcp-fipsAll versions (No fix recorded) | < 5.15.0-1087.96+fips1 | < 6.8.0-1047.50+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1085.91 | < 6.8.0-1043.48
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded) | < 5.15.0-1070.78 | < 6.8.0-1030.33
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-144.157~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8< 6.8.0-100.100~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibmAll versions (No fix recorded) | < 5.15.0-1080.83 | < 6.8.0-1044.44
linux-ibm-5.15< 5.15.0-1080.83~20.04.1
linux-ibm-5.4All versions (No fix recorded)
linux-ibm-6.8< 6.8.0-1044.44~22.04.1
linux-intelAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded) | < 5.15.0-1081.83
linux-intel-iotg< 5.15.0-1083.89
linux-intel-iotg-5.15< 5.15.0-1083.89~20.04.1
linux-iotAll versions (No fix recorded)
linux-kvmAll versions (No fix recorded) | < 5.15.0-1084.89
linux-lowlatency< 5.15.0-144.157 | < 6.8.0-100.100.1
linux-lowlatency-hwe-5.15< 5.15.0-144.157~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8< 6.8.0-100.100.1~22.04.1
linux-lts-xenialAll versions (No fix recorded)
linux-nvidia< 5.15.0-1082.83 | < 6.8.0-1046.49
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8< 6.8.0-1046.49~22.04.1
linux-nvidia-lowlatency< 6.8.0-1046.49.1
linux-nvidia-tegra< 5.15.0-1041.41 | < 6.8.0-1020.20
linux-nvidia-tegra-5.15< 5.15.0-1041.41~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1030.30
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14< 6.14.0-1010.10
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oracleAll versions (No fix recorded) | < 5.15.0-1085.91 | < 6.8.0-1043.44
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1085.91~20.04.3
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14< 6.14.0-1011.11~24.04.1
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8< 6.8.0-1043.44~22.04.1
linux-raspiAll versions (No fix recorded) | < 5.15.0-1083.86 | < 6.8.0-1047.51
linux-raspi-5.4All versions (No fix recorded)
linux-raspi-realtimeAll versions (No fix recorded) | < 6.8.0-2037.38
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1088.97 | < 6.8.1-1041.42
linux-realtime-6.14< 6.14.0-1010.10~24.04.1
linux-realtime-6.8< 6.8.1-1041.42~22.04.1
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1083.87~20.04.1
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14< 6.14.0-28.28.1~24.04.1
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8< 6.8.0-100.100~22.04.1
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-xilinx< 6.8.0-1023.24
linux-xilinx-zynqmpAll versions (No fix recorded) | < 5.15.0-1052.56

Show all 144

Debian2 products

linux< 6.1.140-1 | < 6.12.30-1
debian_linuxEOL11.0

Linux2 products

linux≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < ea1132ccb112f51ba749c56a912f67970c2cd542 | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < d3336f746f196c6a53e0480923ae93939f047b6c | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < d38939ebe0d992d581acb6885c1723fa83c1fb2c | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < a7d6e0ac0a8861f6b1027488062251a8e28150fd | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < d1365ca80b012d8a7863e45949e413fb61fa4861 | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < fe88c7e4fc2c1cd75a278a15ffbf1689efad4e76 | ≥ 76e3cc126bb223013a6b9a0e2a51238d1ef2e409, < 2d3cbfd6d54a2c39ce3244f33f85c595844bd7b8 | 3.5
linux_kernel≥ 3.5, < 5.10.238 | ≥ 5.11, < 5.15.184 | ≥ 5.16, < 6.1.140 | ≥ 6.2, < 6.6.92 | ≥ 6.7, < 6.12.30 | ≥ 6.13, < 6.14.8 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5 | 6.15:rc6

3 vendors · 148 products