CVE-2025-39998

Advisory lineage Upstream: 0 Downstream: 39
Deferred
Published: 15 Oct 2025, 07:58
Last modified:11 May 2026, 21:40

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.23% LOW
0% probability +0.06%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Oct 2025, 07:58
Published
Vulnerability first disclosed
11 May 2026, 21:40
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: target_core_configfs: Add length check to avoid buffer overflow A buffer overflow arises from the usage of snprintf to write into the buffer "buf" in target_lu_gp_members_show function located in /drivers/target/target_core_configfs.c. This buffer is allocated with size LU_GROUP_NAME_BUF (256 bytes). snprintf(...) formats multiple strings into buf with the HBA name (hba->hba_group.cg_item), a slash character, a devicename (dev-> dev_group.cg_item) and a newline character, the total formatted string length may exceed the buffer size of 256 bytes. Since snprintf() returns the total number of bytes that would have been written (the length of %s/%sn ), this value may exceed the buffer length (256 bytes) passed to memcpy(), this will ultimately cause function memcpy reporting a buffer overflow error. An additional check of the return value of snprintf() can avoid this buffer overflow.

EPSS Trends

Current EPSS score: 0.23%• Percentile: 46%

Affected Systems

  • linux•linux

    ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < e6eeee5dc0d9221ff96d1b229b1d0222c8871b84 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < 764a91e2fc9639e07aac93bc70e387e6b1e33084 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < ddc79fba132b807ff775467acceaf48b456e008b | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < f03aa5e39da7d045615b3951d2a6ca1d7132f881 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < 53c6351597e6a17ec6619f6f060d54128cb9a187 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < 4b292286949588bd2818e66ff102db278de8dd26 | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < a150275831b765b0f1de8b8ff52ec5c6933ac15d | ≥ c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5, < 27e06650a5eafe832a90fd2604f0c5e920857fae | 2.6.38

References (9)