Echo: linux: security update to 6.1.176-1

critical Tenable Cloud Security Plugin ID 460160

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: bound SRP_RSP sense copy by
the received length srp_process_rsp() copies sense data from rsp->data + resp_data_len, where
resp_data_len is the full 32-bit value supplied by the SRP target and is never checked against the number
of bytes actually received (wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSIZE, so at most
96 bytes are copied, but the source offset is not bounded. A malicious or compromised SRP target on the
InfiniBand/RoCE fabric that the initiator has logged into can return an SRP_RSP with SRP_RSP_FLAG_SNSVALID
set and a large resp_data_len. The receive buffer is allocated at the target-chosen max_ti_iu_len, so the
source of the sense copy lands past the bytes actually received; with resp_data_len near 0xFFFFFFFF it is
gigabytes past the buffer and the read faults. Copy the sense data only if it has not been truncated, that
is, only if the response header, the response data, and the sense region fit within the bytes actually
received; otherwise drop the sense and log. The in-tree iSER and NVMe-RDMA receive paths already bound
their parse by wc->byte_len; this brings ib_srp into line with them. (CVE-2026-53186)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53186

Plugin Details

Severity: Critical

ID: 460160

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.68

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

CVSS Score Source: CVE-2026-53186

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-53186