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Echo: linux: security update to 6.1.170-1

high Tenable Self-Hosted Container Security Plugin ID 464182

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: ALSA: caiaq: fix stack out-of-bounds
 read in init_card The loop creates a whitespace-stripped copy of the card shortname where `len <
 sizeof(card->id)` is used for the bounds check. Since sizeof(card->id) is 16 and the local id buffer is
 also 16 bytes, writing 16 non-space characters fills the entire buffer, overwriting the terminating
 nullbyte. When this non-null-terminated string is later passed to snd_card_set_id() ->
 copy_valid_id_string(), the function scans forward with `while (*nid && ...)` and reads past the end of
 the stack buffer, reading the contents of the stack. A USB device with a product name containing many non-
 ASCII, non-space characters (e.g. multibyte UTF-8) will reliably trigger this as follows: BUG: KASAN:
 stack-out-of-bounds in copy_valid_id_string sound/core/init.c:696 [inline] BUG: KASAN: stack-out-of-bounds
 in snd_card_set_id_no_lock+0x698/0x74c sound/core/init.c:718 The off-by-one has been present since commit
 bafeee5b1f8d ("ALSA: snd_usb_caiaq: give better shortname") from June 2009 (v2.6.31-rc1), which first
 introduced this whitespace-stripping loop. The original code never accounted for the null terminator when
 bounding the copy. Fix this by changing the loop bound to `sizeof(card->id) - 1`, ensuring at least one
 byte remains as the null terminator. (CVE-2026-31778)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-31778

Plugin Details

Severity: High

ID: 464182

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.61

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-31778

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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: 5/2/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-31778