9.8

CVE-2025-38075: debian debian_linux NULL Pointer Dereference

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2025-38075DEBIAN-CVE-2025-38075
Published 18-06-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-38075 is a critical (CVSS 9.8) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.8% 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
0.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 52 · Related 48
DLA-4327-1DLA-4328-1DSA-5973-1OPENSUSE-SU-2025:20081-1RHSA-2025:20518SUSE-SU-2025:03204-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix timeout on deleted connection NOPIN response timer may expire on a deleted connection and crash with such logs: Did not receive response to NOPIN on CID: 0, failing connection for I_T Nexus (null),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d BUG: Kernel NULL pointer dereference on read at 0x00000000 NIP strlcpy+0x8/0xb0 LR iscsit_fill_cxn_timeout_err_stats+0x5c/0xc0 [iscsi_target_mod] Call Trace: iscsit_handle_nopin_response_timeout+0xfc/0x120 [iscsi_target_mod] call_timer_fn+0x58/0x1f0 run_timer_softirq+0x740/0x860 __do_softirq+0x16c/0x420 irq_exit+0x188/0x1c0 timer_interrupt+0x184/0x410 That is because nopin response timer may be re-started on nopin timer expiration. Stop nopin timer before stopping the nopin response timer to be sure that no one of them will be re-started.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.45% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.45%

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

Ubuntu145 products
  • linuxAll versions (No fix recorded) | < 5.15.0-152.162 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1090.97 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ e48354ce078c079996f89d715dfa44814b4eba01, < 571ce6b6f5cbaf7d24af03cad592fc0e2a54de35 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 2c5081439c7ab8da08427befe427f0d732ebc9f9 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 019ca2804f3fb49a7f8e56ea6aeaa1ff32724c27 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 6815846e0c3a62116a7da9740e3a7c10edc5c7e9 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < fe8421e853ef289e1324fcda004751c89dd9c18a | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 87389bff743c55b6b85282de91109391f43e0814 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 3e6429e3707943078240a2c0c0b3ee99ea9b0d9c | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 7f533cc5ee4c4436cee51dc58e81dfd9c3384418 | 3.1
  • linux_kernel≥ 3.1, < 5.4.294 | ≥ 5.5, < 5.10.238 | ≥ 5.11, < 5.15.185 | ≥ 5.16, < 6.1.141 | ≥ 6.2, < 6.6.93 | ≥ 6.7, < 6.12.31 | ≥ 6.13, < 6.14.9 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3

3 vendors · 149 products

References

46 links
Show all 46 references