CVE-2025-38075 — scsi: target: iscsi: Fix timeout on deleted connection

Affected: Linux

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.

USN-7704-1 — linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm-5.15, linux-intel-i…

Affected: Ubuntu:Pro:20.04:LTS: linux-aws-5.15, Ubuntu:Pro:20.04:LTS: linux-gcp-5.15, Ubuntu:Pro:20.04:LTS: linux-hwe-5.15, Ubuntu:Pro:20.04:LTS: linux-ibm-5.15, Ubuntu:Pro:20.04:LTS: linux-intel-iotg-5.15, Ubuntu:Pro:20.04:LTS: linux-lowlatency-hwe-5.15, Ubuntu:Pro:20.04:LTS: linux-nvidia-tegra-5.15, Ubuntu:Pro:20.04:LTS: linux-oracle-5.15, Ubuntu:22.04:LTS: linux, Ubuntu:22.04:LTS: linux-aws and 8 more

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devices driver; - Media drivers; - Network drivers; - NVDIMM (Non-Volatile Memory Device) drivers; - NVME drivers; - x86 platform drivers; - TCM subsystem; - Virtio drivers; - File systems infrastructure; - SMB network file system; - LZO compression library; - Digital Audio (PCM) driver; - Tracing infrastructure; - Padata parallel execution mechanism; - CAN network layer; - Networking core; - TIPC protocol; - ALSA framework; (CVE-2025-38079, CVE-2025-38048, CVE-2025-38075, CVE-2025-38077, CVE-2025-38035, CVE-2025-38037, CVE-2025-38034, CVE-2025-38058, CVE-2025-38004, CVE-2025-38031, CVE-2025-38078, CVE-2025-38044, CVE-2025-38066, CVE-2025-38052, CVE-2025-38043, CVE-2025-38065, CVE-2025-38003, CVE-2025-38061, CVE-2025-38051, CVE-2025-38072, CVE-2025-38068)

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CVE-2025-38075 — scsi: target: iscsi: Fix timeout on deleted connection

USN-7704-1 — linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm-5.15, linux-intel-i…