A race condition was found in the Linux kernel's sound/hda device driver in snd_hdac_regmap_sync() function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or denial of service issue.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1781347338 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: net: mdio: unexport __init-annotated     mdio_bus_init() EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up     after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol     may end up with kernel panic. modpost used to detect it, but it has been broken for a decade. Recently, I     fixed modpost so it started to warn it again, then this showed up in linux-next builds. There are two ways     to fix it: - Remove __init - Remove EXPORT_SYMBOL I chose the latter for this case because the only in-     tree call-site, drivers/net/phy/phy_device.c is never compiled as modular. (CONFIG_PHYLIB is boolean)     (CVE-2022-49350)

  - In the Linux kernel, the following vulnerability has been resolved: selinux: fix memleak in     security_read_state_kernel() In this function, it directly returns the result of __security_read_policy     without freeing the allocated memory in *data, cause memory leak issue, so free the memory if
    __security_read_policy failed. [PM: subject line tweak] (CVE-2022-50201)

  - In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci: fix of node     refcount leak in tcpci_register_port() I got the following report while doing device(mt6370-tcpc) load     test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled: OF: ERROR: memory leak, expected refcount 1     instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node     /i2c/pmic@34/tcpc/connector The 'fwnode' set in tcpci_parse_config() which is called in     tcpci_register_port(), its node refcount is increased in device_get_named_child_node(). It needs be put     while exiting, so call fwnode_handle_put() in the error path of tcpci_register_port() and in     tcpci_unregister_port() to avoid leak. (CVE-2022-50246)

  - In the Linux kernel, the following vulnerability has been resolved: drivers: serial: jsm: fix some leaks     in probe This error path needs to unwind instead of just returning directly. (CVE-2022-50312)

  - In the Linux kernel, the following vulnerability has been resolved: thermal: intel_powerclamp: Use     get_cpu() instead of smp_processor_id() to avoid crash When CPU 0 is offline and intel_powerclamp is used     to inject idle, it generates kernel BUG: BUG: using smp_processor_id() in preemptible [00000000] code:
    bash/15687 caller is debug_smp_processor_id+0x17/0x20 CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+     #57 Call Trace: <TASK> dump_stack_lvl+0x49/0x63 dump_stack+0x10/0x16 check_preemption_disabled+0xdd/0xe0     debug_smp_processor_id+0x17/0x20 powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp] ... ... Here CPU 0     is the control CPU by default and changed to the current CPU, if CPU 0 offlined. This check has to be     performed under cpus_read_lock(), hence the above warning. Use get_cpu() instead of smp_processor_id() to     avoid this BUG. [ rjw: Subject edits ] (CVE-2022-50494)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2024-002968 advisory.

    A race condition was found in the Linux kernel's sound/hda  device driver in snd_hdac_regmap_sync()     function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or     denial of service issue.



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

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

An update of the linux package has been released.

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

  - A race condition was found in the Linux kernel's sound/hda device driver in snd_hdac_regmap_sync()     function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or     denial of service issue. (CVE-2024-23196)

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

ID	Name	Product	Family	Type	Severity
360826	AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1781347338)	Nessus	Alma Linux Local Security Checks	Local	high
341464	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2024-002968)	Nessus	Unity Linux Local Security Checks	Local	medium
332299	Photon OS 5.0: Linux PHSA-2023-5.0-91-0101	Nessus	PhotonOS Local Security Checks	Local	high
228037	Linux Distros Unpatched Vulnerability : CVE-2024-23196	Nessus	Misc.	Local	medium
204585	Photon OS 5.0: Linux PHSA-2023-5.0-0101	Nessus	PhotonOS Local Security Checks	Local	high

Detections

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CVE-2024-23196

medium

Tenable Plugins

high

medium

high

medium

high