CVE-2025-38399: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port() The function core_scsi3_decode_spec_i_port(), in its error code path, unconditionally calls core_scsi3_lunacl_undepend_item() passing the dest_se_deve pointer, which may be NULL. This can lead to a NULL pointer dereference if dest_se_deve remains unset. SPC-3 PR SPEC_I_PT: Unable to locate dest_tpg Unable to handle kernel paging request at virtual address dfff800000000012 Call trace: core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P) core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod] core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod] target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod] Fix this by adding a NULL check before calling core_scsi3_lunacl_undepend_item()

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 5.9, before 5.10.240 (fixed in 5.10.240); from 5.11, before 5.15.187 (fixed in 5.15.187); from 5.16, before 6.1.144 (fixed in 6.1.144); from 6.2, before 6.6.97 (fixed in 6.6.97); from 6.7, before 6.12.37 (fixed in 6.12.37); from 6.13, before 6.15.6 (fixed in 6.15.6); …

Published 2025-07-25. Last modified 2026-07-30.