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Echo: linux: security update to 6.12.85-1

medium Tenable Cloud Security Plugin ID 465243

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: spi: tegra210-quad: Protect curr_xfer
 check in IRQ handler Now that all other accesses to curr_xfer are done under the lock, protect the
 curr_xfer NULL check in tegra_qspi_isr_thread() with the spinlock. Without this protection, the following
 race can occur: CPU0 (ISR thread) CPU1 (timeout path) ---------------- ------------------- if
 (!tqspi->curr_xfer) // sees non-NULL spin_lock() tqspi->curr_xfer = NULL spin_unlock() handle_*_xfer()
 spin_lock() t = tqspi->curr_xfer // NULL! ... t->len ... // NULL dereference! With this patch, all
 curr_xfer accesses are now properly synchronized. Although all accesses to curr_xfer are done under the
 lock, in tegra_qspi_isr_thread() it checks for NULL, releases the lock and reacquires it later in
 handle_cpu_based_xfer()/handle_dma_based_xfer(). There is a potential for an update in between, which
 could cause a NULL pointer dereference. To handle this, add a NULL check inside the handlers after
 acquiring the lock. This ensures that if the timeout path has already cleared curr_xfer, the handler will
 safely return without dereferencing the NULL pointer. (CVE-2026-23207)

Solution

Update the linux library and its related packages to version 6.12.85-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23207

Plugin Details

Severity: Medium

ID: 465243

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2026-23207

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/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: 2/15/2026

Vulnerability Publication Date: 2/14/2026

Reference Information

CVE: CVE-2026-23207