In the Linux kernel, the following vulnerability has been resolved: io_uring/waitid: clear waitid info before copying it to userspace IORING_OP_WAITID stores its result fields in struct io_waitid::info and later copies them to userspace siginfo. The prep path initializes the request arguments, but it does not initialize info itself. If the wait operation completes without reporting a child event, the common wait code can return without writing wo_info. In that case io_waitid_finish() still copies iw->info to userspace, exposing stale bytes from the reused io_kiocb command storage. Clear the result storage during prep so the io_uring path matches the regular waitid syscall, which uses a zero-initialized struct waitid_info.

The remote Ubuntu 22.04 LTS / 24.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8729-1 advisory.

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - ARM32 architecture;

    - ARM64 architecture;

    - PowerPC architecture;

    - Compute Acceleration Framework;

    - Drivers core;

    - Bluetooth drivers;

    - Arm Firmware Framework for ARMv8-A(FFA);

    - EFI core;

    - GPU drivers;

    - Hardware monitoring drivers;

    - InfiniBand drivers;

    - Network drivers;

    - Microsoft Azure Network Adapter (MANA) driver;

    - SCSI subsystem;

    - SPI subsystem;

    - Network file systems library;

    - NTFS3 file system;

    - SMB network file system;

    - File systems infrastructure;

    - Software nodes and device properties;

    - Bluetooth subsystem;

    - Netfilter;

    - Tracing infrastructure;

    - io_uring subsystem;

    - IRQ subsystem;

    - KProbes tracing;

    - Memory management;

    - B.A.T.M.A.N. meshing protocol;

    - Ethernet bridge;

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - Multipath TCP;

    - Phonet protocol;

    - SMC sockets;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - Wireless networking;

    - Key management;

    - Linux Security Modules (LSM) Framework;

    - ALSA framework;

    - AudioScience HPI driver; (CVE-2025-71289, CVE-2026-23469, CVE-2026-31420, CVE-2026-31486,     CVE-2026-31560, CVE-2026-46158, CVE-2026-46170, CVE-2026-46275, CVE-2026-46315, CVE-2026-52912,     CVE-2026-52915, CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52921, CVE-2026-52922,     CVE-2026-52926, CVE-2026-52941, CVE-2026-53357, CVE-2026-64015, CVE-2026-64018, CVE-2026-64025,     CVE-2026-64029, CVE-2026-64032, CVE-2026-64033, CVE-2026-64034, CVE-2026-64039, CVE-2026-64046,     CVE-2026-64047, CVE-2026-64048, CVE-2026-64051, CVE-2026-64055, CVE-2026-64056, CVE-2026-64064,     CVE-2026-64073, CVE-2026-64083, CVE-2026-64084, CVE-2026-64085, CVE-2026-64086, CVE-2026-64087,     CVE-2026-64088, CVE-2026-64089, CVE-2026-64092, CVE-2026-64096, CVE-2026-64097, CVE-2026-64098,     CVE-2026-64102, CVE-2026-64103, CVE-2026-64106, CVE-2026-64108, CVE-2026-64109, CVE-2026-64111,     CVE-2026-64113, CVE-2026-64114, CVE-2026-64115, CVE-2026-64116, CVE-2026-64118, CVE-2026-64121,     CVE-2026-64125, CVE-2026-64126, CVE-2026-64127, CVE-2026-64128, CVE-2026-64133, CVE-2026-64134,     CVE-2026-64135, CVE-2026-64136, CVE-2026-64137, CVE-2026-64138, CVE-2026-64144, CVE-2026-64147,     CVE-2026-64148, CVE-2026-64153, CVE-2026-64155, CVE-2026-64163, CVE-2026-64165, CVE-2026-64166,     CVE-2026-64168, CVE-2026-64170, CVE-2026-64173, CVE-2026-64174, CVE-2026-64177, CVE-2026-64178,     CVE-2026-64179, CVE-2026-64180, CVE-2026-64182, CVE-2026-64183, CVE-2026-64184, CVE-2026-64185,     CVE-2026-64214, CVE-2026-64217, CVE-2026-64218, CVE-2026-64219, CVE-2026-64220, CVE-2026-64221,     CVE-2026-64225, CVE-2026-64231, CVE-2026-64518)

Tenable has extracted the preceding description block directly from the Ubuntu 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 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6355 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6355-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     June 21, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : linux     CVE ID         : CVE-2025-22069 CVE-2025-68251 CVE-2025-68768 CVE-2025-71289                      CVE-2026-23247 CVE-2026-23272 CVE-2026-23346 CVE-2026-23394                      CVE-2026-23469 CVE-2026-31420 CVE-2026-31486 CVE-2026-31560                      CVE-2026-31613 CVE-2026-31663 CVE-2026-31717 CVE-2026-43116                      CVE-2026-43219 CVE-2026-43245 CVE-2026-43303 CVE-2026-43331                      CVE-2026-45838 CVE-2026-45839 CVE-2026-45840 CVE-2026-45841                      CVE-2026-45842 CVE-2026-45843 CVE-2026-45844 CVE-2026-45845                      CVE-2026-45846 CVE-2026-45850 CVE-2026-45930 CVE-2026-46117                      CVE-2026-46137 CVE-2026-46158 CVE-2026-46160 CVE-2026-46170                      CVE-2026-46203 CVE-2026-46216 CVE-2026-46244 CVE-2026-46274                      CVE-2026-46275 CVE-2026-46315 CVE-2026-46316 CVE-2026-46319                      CVE-2026-46320 CVE-2026-46321 CVE-2026-46322 CVE-2026-46323                      CVE-2026-46331 CVE-2026-52908 CVE-2026-52909 CVE-2026-52910                      CVE-2026-52911

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

    For the stable distribution (trixie), these problems have been fixed in     version 6.12.94-1.

    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 Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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.

  - io_uring/waitid: clear waitid info before copying it to userspace IORING_OP_WAITID stores its result     fields in struct io_waitid::info and later copies them to userspace siginfo. The prep path initializes the     request arguments, but it does not initialize info itself. If the wait operation completes without     reporting a child event, the common wait code can return without writing wo_info. In that case     io_waitid_finish() still copies iw->info to userspace, exposing stale bytes from the reused io_kiocb     command storage. Clear the result storage during prep so the io_uring path matches the regular waitid     syscall, which uses a zero-initialized struct waitid_info. (CVE-2026-46315)

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

ID	Name	Product	Family	Type	Severity
343532	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (GCP) vulnerabilities (USN-8728-1)	Nessus	Ubuntu Local Security Checks	Local	high
343493	Ubuntu 22.04 LTS / 24.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS : Linux kernel vulnerabilities (USN-8729-1)	Nessus	Ubuntu Local Security Checks	Local	high
340681	Ubuntu 24.04 LTS / 26.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)	Nessus	Ubuntu Local Security Checks	Local	high
340045	Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)	Nessus	Ubuntu Local Security Checks	Local	high
335080	openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)	Nessus	SuSE Local Security Checks	Local	high
326000	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:2800-1)	Nessus	SuSE Local Security Checks	Local	high
322107	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1894)	Nessus	Amazon Linux Local Security Checks	Local	high
322087	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1881)	Nessus	Amazon Linux Local Security Checks	Local	high
321868	Debian dsa-6355 : ata-modules-6.12.90+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
320095	Linux Distros Unpatched Vulnerability : CVE-2026-46315	Nessus	Misc.	Local	medium

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CVE-2026-46315

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