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Echo: linux: security update to 6.1.177-1

medium Tenable Self-Hosted Container Security Plugin ID 458800

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: misc: fastrpc: Fix NULL pointer
 dereference in rpmsg callback A NULL pointer dereference was observed on Hawi at boot when the DSP sends a
 glink message before fastrpc_rpmsg_probe() has completed initialization: Unable to handle kernel NULL
 pointer dereference at virtual address 0000000000000178 pc : _raw_spin_lock_irqsave+0x34/0x8c lr :
 fastrpc_rpmsg_callback+0x3c/0xcc [fastrpc] ... Call trace: _raw_spin_lock_irqsave+0x34/0x8c (P)
 fastrpc_rpmsg_callback+0x3c/0xcc [fastrpc] qcom_glink_native_rx+0x538/0x6a4 qcom_glink_smem_intr+0x14/0x24
 [qcom_glink_smem] The faulting address 0x178 corresponds to the lock variable inside struct
 fastrpc_channel_ctx, confirming that cctx is NULL when fastrpc_rpmsg_callback() attempts to take the
 spinlock. There are two issues here. First, dev_set_drvdata() is called before spin_lock_init() and
 idr_init(), leaving a window where the callback can retrieve a valid cctx pointer but operate on an
 uninitialized spinlock. Second, the rpmsg channel becomes live as soon as the driver is bound, so
 fastrpc_rpmsg_callback() can fire before dev_set_drvdata() is called at all, resulting in
 dev_get_drvdata() returning NULL. Fix both issues by moving all cctx initialization ahead of
 dev_set_drvdata() so the structure is fully initialized before it becomes visible to the callback, and add
 a NULL check in fastrpc_rpmsg_callback() as a guard against any remaining window. (CVE-2026-53158)

Solution

Update the linux library and its related packages to version 6.1.177-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53158

Plugin Details

Severity: Medium

ID: 458800

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-53158

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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-2026-53158