In the Linux kernel, the following vulnerability has been resolved: MIPS: DEC: Prevent initial console buffer from landing in XKPHYS In 64-bit configurations calling the initial console output handler from a kernel thread other than the initial one will result in a situation where the stack has been placed in the XKPHYS 64-bit memory segment and consequently so has been the buffer allocated there that is used as the argument corresponding to the `%s' output conversion specifier for the firmware's printf() entry point. This 64-bit address will then be truncated by 32-bit firmware, resulting in an attempt to access the wrong memory location, which in turn will cause all kinds of unpredictable behaviour, such as a kernel crash: Console: colour dummy device 160x64 Calibrating delay loop... 49.36 BogoMIPS (lpj=192512) pid_max: default: 32768 minimum: 301 CPU 0 Unable to handle kernel paging request at virtual address 000000000203bd00, epc == ffffffffbfc08364, ra == ffffffffbfc08800 Oops[#1]: CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0-rc2-00254-gfb649bda6f56-dirty #121 $ 0 : 0000000000000000 0000000000000001 0000000000000023 ffffffff80684ba0 $ 4 : 000000000203bd00 ffffffffbfc0f3b4 ffffffffffffffff 0000000000000073 $ 8 : 0a303d7469000000 0000000000000000 0000000000000073 ffffffffbfc0f473 $12 : 0000000000000002 0000000000000000 ffffffff80684c1c 0000000000000000 $16 : 0000000000000000 ffffffff80596dc9 0000000000000000 ffffffffbfc09240 $20 : ffffffff80684c40 ffffffffbfc0f400 000000000000002d 000000000000002b $24 : ffffffffffffffbf 000000000203bd00 $28 : ffffffff805f0000 ffffffff80684b58 0000000000000030 ffffffffbfc08800 Hi : 0000000000000000 Lo : 0000000000000aa8 epc : ffffffffbfc08364 0xffffffffbfc08364 ra : ffffffffbfc08800 0xffffffffbfc08800 Status: 140120e2 KX SX UX KERNEL EXL Cause : 00000008 (ExcCode 02) BadVA : 000000000203bd00 PrId : 00000430 (R4000SC) Modules linked in: Process swapper (pid: 0, threadinfo=(____ptrval____), task=(____ptrval____), tls=0000000000000000) Stack : 0000000000000000 0000000000000000 0000000000000000 0000004d0000004d 80684cc0806a2a40 80596dc80000004d 8061000000000000 bfc0850c80684c38 0000000000000000 000000000203bd00 0000000000000000 0000000000000000 0000000000000000 00000000bfc0f3b4 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000002500000000 0000000000000000 0000000000000000 802c1a7400000000 0203bd0080596dc8 0203bd4d69000000 6c61632000000018 5f746567646e6172 6c616320625f6d6f 5f736e5f6d6f7266 206361323778302b 303d74696e726320 806a0a38806b0000 806a0a38806b0000 00000000806b0000 80683c58806b0000 ... Call Trace: Code: a082ffff 03e00008 00601021 <80820000> 00001821 10400005 24840001 80820000 24630001 ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Fatal exception in interrupt KN04 V2.1k (PC: 0xa0026768, SP: 0x806848e8) >> In this case the pointer in $4 was truncated from 0x980000000203bd00 to 0x000000000203bd00. This may happen when no final console driver has been enabled in the configuration and consequently the initial console continues being used late into bootstrap or with an upcoming change that will switch the zs driver to use a platform device, which in turn will make the console handover happen only after other kernel threads have already been started. Fix the issue by making the buffer static and initdata, and therefore placed in the CKSEG0 32-bit compatibility segment, observing that the console output handler is called with the console lock held, implying no need for this code to be reentrant. Add an assertion to verify the buffer actually has been placed in a compatibility segment.

An update of the linux package has been released.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4717 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4717-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     August 05, 2026                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : linux     Version        : 5.10.262-1     CVE ID         : CVE-2022-49803 CVE-2022-50114 CVE-2023-52494 CVE-2025-23131                      CVE-2025-39931 CVE-2026-23204 CVE-2026-31451 CVE-2026-31755                      CVE-2026-43216 CVE-2026-43219 CVE-2026-43499 CVE-2026-46116                      CVE-2026-46135 CVE-2026-46252 CVE-2026-46331 CVE-2026-52942                      CVE-2026-53138 CVE-2026-53157 CVE-2026-53158 CVE-2026-53159                      CVE-2026-53167 CVE-2026-53177 CVE-2026-53325 CVE-2026-53329                      CVE-2026-53332 CVE-2026-53381 CVE-2026-53382 CVE-2026-53385                      CVE-2026-53392 CVE-2026-53393 CVE-2026-53397 CVE-2026-53398                      CVE-2026-53399 CVE-2026-53400 CVE-2026-53402 CVE-2026-53403                      CVE-2026-63794 CVE-2026-63796 CVE-2026-63798 CVE-2026-63800                      CVE-2026-63801 CVE-2026-63803 CVE-2026-63806 CVE-2026-63808                      CVE-2026-63809 CVE-2026-63814 CVE-2026-63815 CVE-2026-63818                      CVE-2026-63822 CVE-2026-63823 CVE-2026-63824 CVE-2026-63827                      CVE-2026-63828 CVE-2026-63829 CVE-2026-63830 CVE-2026-63831                      CVE-2026-63834 CVE-2026-63835 CVE-2026-63836 CVE-2026-64188                      CVE-2026-64189 CVE-2026-64191 CVE-2026-64206 CVE-2026-64249                      CVE-2026-64252 CVE-2026-64266 CVE-2026-64268 CVE-2026-64271                      CVE-2026-64273 CVE-2026-64274 CVE-2026-64275 CVE-2026-64276                      CVE-2026-64277 CVE-2026-64296 CVE-2026-64298 CVE-2026-64299                      CVE-2026-64303 CVE-2026-64304 CVE-2026-64306 CVE-2026-64312                      CVE-2026-64313 CVE-2026-64315 CVE-2026-64316 CVE-2026-64317                      CVE-2026-64318 CVE-2026-64322 CVE-2026-64323 CVE-2026-64324                      CVE-2026-64329 CVE-2026-64330 CVE-2026-64331 CVE-2026-64332                      CVE-2026-64333 CVE-2026-64334 CVE-2026-64335 CVE-2026-64337                      CVE-2026-64338 CVE-2026-64340 CVE-2026-64342 CVE-2026-64343                      CVE-2026-64344 CVE-2026-64345 CVE-2026-64347 CVE-2026-64348                      CVE-2026-64351 CVE-2026-64359 CVE-2026-64360 CVE-2026-64361                      CVE-2026-64362 CVE-2026-64363 CVE-2026-64364 CVE-2026-64370                      CVE-2026-64371 CVE-2026-64372 CVE-2026-64373 CVE-2026-64374                      CVE-2026-64375 CVE-2026-64378 CVE-2026-64379 CVE-2026-64380                      CVE-2026-64381 CVE-2026-64403 CVE-2026-64406 CVE-2026-64408                      CVE-2026-64411 CVE-2026-64412 CVE-2026-64413 CVE-2026-64420                      CVE-2026-64422 CVE-2026-64423 CVE-2026-64425 CVE-2026-64429                      CVE-2026-64435 CVE-2026-64436 CVE-2026-64438 CVE-2026-64442                      CVE-2026-64445 CVE-2026-64446 CVE-2026-64448 CVE-2026-64450                      CVE-2026-64452 CVE-2026-64455 CVE-2026-64456 CVE-2026-64461                      CVE-2026-64462 CVE-2026-64465 CVE-2026-64468 CVE-2026-64469                      CVE-2026-64470 CVE-2026-64471 CVE-2026-64475 CVE-2026-64478                      CVE-2026-64483 CVE-2026-64484 CVE-2026-64487 CVE-2026-64488                      CVE-2026-64494 CVE-2026-64495 CVE-2026-64496 CVE-2026-64497                      CVE-2026-64500 CVE-2026-64503 CVE-2026-64504 CVE-2026-64505                      CVE-2026-64510 CVE-2026-64514 CVE-2026-64529 CVE-2026-64534                      CVE-2026-64538 CVE-2026-64540 CVE-2026-64541 CVE-2026-64544                      CVE-2026-64546 CVE-2026-64547 CVE-2026-64548 CVE-2026-64549                      CVE-2026-64550 CVE-2026-64551 CVE-2026-64553 CVE-2026-64554                      CVE-2026-64560

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 11 bullseye, these problems have been fixed in version     5.10.262-1. This version additionally includes many more bug fixes     from stable updates 5.10.260-5.10.262.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4700 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4700-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     July 26, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux-6.1     Version        : 6.1.177-1~deb11u1     CVE ID         : CVE-2025-23131 CVE-2026-23272 CVE-2026-23278 CVE-2026-23302                      CVE-2026-31451 CVE-2026-46252 CVE-2026-52928 CVE-2026-53138                      CVE-2026-53139 CVE-2026-53157 CVE-2026-53158 CVE-2026-53163                      CVE-2026-53167 CVE-2026-53325 CVE-2026-53327 CVE-2026-53359                      CVE-2026-53362 CVE-2026-53366 CVE-2026-53381 CVE-2026-53382                      CVE-2026-53383 CVE-2026-53384 CVE-2026-53385 CVE-2026-53388                      CVE-2026-53390 CVE-2026-53391 CVE-2026-53397 CVE-2026-53398                      CVE-2026-53403 CVE-2026-63794 CVE-2026-63795 CVE-2026-63796                      CVE-2026-63798 CVE-2026-63800 CVE-2026-63801 CVE-2026-63803                      CVE-2026-63807 CVE-2026-63808 CVE-2026-63809 CVE-2026-63814                      CVE-2026-63817 CVE-2026-63822 CVE-2026-63823 CVE-2026-63824                      CVE-2026-63827 CVE-2026-63828 CVE-2026-63830 CVE-2026-63831                      CVE-2026-63833 CVE-2026-63834 CVE-2026-63835 CVE-2026-63836                      CVE-2026-64188 CVE-2026-64191 CVE-2026-64246 CVE-2026-64249                      CVE-2026-64252 CVE-2026-64254 CVE-2026-64529     Debian Bug     : 1130365

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 11 bullseye, these problems have been fixed in version     6.1.177-1~deb11u1.  This version additionally updates the Microsoft     Azure Network Adapter (mana) driver, and includes many more bug fixes     from stable update 6.1.177.

    We recommend that you upgrade your linux-6.1 packages.

    For the detailed security status of linux-6.1 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux-6.1

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - MIPS: DEC: Prevent initial console buffer from landing in XKPHYS In 64-bit configurations calling the     initial console output handler from a kernel thread other than the initial one will result in a situation     where the stack has been placed in the XKPHYS 64-bit memory segment and consequently so has been the     buffer allocated there that is used as the argument corresponding to the `%s' output conversion specifier     for the firmware's printf() entry point. This 64-bit address will then be truncated by 32-bit firmware,     resulting in an attempt to access the wrong memory location, which in turn will cause all kinds of     unpredictable behaviour, such as a kernel crash: Console: colour dummy device 160x64 Calibrating delay     loop... 49.36 BogoMIPS (lpj=192512) pid_max: default: 32768 minimum: 301 CPU 0 Unable to handle kernel     paging request at virtual address 000000000203bd00, epc == ffffffffbfc08364, ra == ffffffffbfc08800     Oops[#1]: CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0-rc2-00254-gfb649bda6f56-dirty #121 $ 0 :
    0000000000000000 0000000000000001 0000000000000023 ffffffff80684ba0 $ 4 : 000000000203bd00     ffffffffbfc0f3b4 ffffffffffffffff 0000000000000073 $ 8 : 0a303d7469000000 0000000000000000     0000000000000073 ffffffffbfc0f473 $12 : 0000000000000002 0000000000000000 ffffffff80684c1c     0000000000000000 $16 : 0000000000000000 ffffffff80596dc9 0000000000000000 ffffffffbfc09240 $20 :
    ffffffff80684c40 ffffffffbfc0f400 000000000000002d 000000000000002b $24 : ffffffffffffffbf     000000000203bd00 $28 : ffffffff805f0000 ffffffff80684b58 0000000000000030 ffffffffbfc08800 Hi :
    0000000000000000 Lo : 0000000000000aa8 epc : ffffffffbfc08364 0xffffffffbfc08364 ra : ffffffffbfc08800     0xffffffffbfc08800 Status: 140120e2 KX SX UX KERNEL EXL Cause : 00000008 (ExcCode 02) BadVA :
    000000000203bd00 PrId : 00000430 (R4000SC) Modules linked in: Process swapper (pid: 0,     threadinfo=(____ptrval____), task=(____ptrval____), tls=0000000000000000) Stack : 0000000000000000     0000000000000000 0000000000000000 0000004d0000004d 80684cc0806a2a40 80596dc80000004d 8061000000000000     bfc0850c80684c38 0000000000000000 000000000203bd00 0000000000000000 0000000000000000 0000000000000000     00000000bfc0f3b4 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000     0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000002500000000     0000000000000000 0000000000000000 802c1a7400000000 0203bd0080596dc8 0203bd4d69000000 6c61632000000018     5f746567646e6172 6c616320625f6d6f 5f736e5f6d6f7266 206361323778302b 303d74696e726320 806a0a38806b0000     806a0a38806b0000 00000000806b0000 80683c58806b0000 ... Call Trace: Code: a082ffff 03e00008 00601021     <80820000> 00001821 10400005 24840001 80820000 24630001 ---[ end trace 0000000000000000 ]--- Kernel panic
    - not syncing: Fatal exception in interrupt KN04 V2.1k (PC: 0xa0026768, SP: 0x806848e8) >> In this case     the pointer in $4 was truncated from 0x980000000203bd00 to 0x000000000203bd00. This may happen when no     final console driver has been enabled in the configuration and consequently the initial console continues     being used late into bootstrap or with an upcoming change that will switch the zs driver to use a platform     device, which in turn will make the console handover happen only after other kernel threads have already     been started. Fix the issue by making the buffer static and initdata, and therefore placed in the CKSEG0     32-bit compatibility segment, observing that the console output handler is called with the console lock     held, implying no need for this code to be reentrant. Add an assertion to verify the buffer actually has     been placed in a compatibility segment. (CVE-2026-64252)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
364867	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-4148)	Nessus	Huawei Local Security Checks	Local	high
364837	EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-4241)	Nessus	Huawei Local Security Checks	Local	high
364821	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-4057)	Nessus	Huawei Local Security Checks	Local	high
364820	EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-4332)	Nessus	Huawei Local Security Checks	Local	high
333954	Photon OS 5.0: Linux PHSA-2026-5.0-92-0916	Nessus	PhotonOS Local Security Checks	Local	high
333941	Photon OS 5.0: Linux PHSA-2026-5.0-92-0926	Nessus	PhotonOS Local Security Checks	Local	high
332715	Debian dla-4717 : ata-modules-5.10.0-43-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
330014	Debian dla-4700 : linux-config-6.1 - security update	Nessus	Debian Local Security Checks	Local	high
329657	Linux Distros Unpatched Vulnerability : CVE-2026-64252	Nessus	Misc.	Local	medium
329326	Photon OS 5.0: Linux PHSA-2026-5.0-0926	Nessus	PhotonOS Local Security Checks	Local	high
326038	Photon OS 5.0: Linux PHSA-2026-5.0-0916	Nessus	PhotonOS Local Security Checks	Local	high

Detections

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CVE-2026-64252

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