Linux Distros Unpatched Vulnerability : CVE-2026-72391

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: phy: sfp: free miibus in sfpi2cmdiobusdestroy sfpi2cmdiobuscreate allocates the I2C MDIO bus with mdioi2calloc, a plain non-devm allocation, and registers...

CVE-2026-72391

In the Linux kernel, the following vulnerability has been resolved: net: phy: sfp: free miibus in sfpi2cmdiobusdestroy sfpi2cmdiobuscreate allocates the I2C MDIO bus with mdioi2calloc, a plain non-devm allocation, and registers it. sfpi2cmdiobusdestroy only unregisters the bus and clears sfp-i2cm...

UBUNTU-CVE-2026-72391

In the Linux kernel, the following vulnerability has been resolved: net: phy: sfp: free miibus in sfpi2cmdiobusdestroy sfpi2cmdiobuscreate allocates the I2C MDIO bus with mdioi2calloc, a plain non-devm allocation, and registers it. sfpi2cmdiobusdestroy only unregisters the bus and clears sfp-i2cm...

CVE-2026-72391

Summary: CVE-2026-72391 affects the Linux kernel’s SFP MDIO bus handling. The code path in net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy previously leaked the struct mii_bus. The creation path allocates the I2C MDIO bus with mdio_i2c_alloc() (plain non-devm allocation) and registers it, ...

PT-2026-72579

In the Linux kernel, the following vulnerability has been resolved: net: phy: sfp: free mii bus in sfp i2c mdiobus destroy sfp i2c mdiobus create allocates the I2C MDIO bus with mdio i2c alloc, a plain non-devm allocation, and registers it. sfp i2c mdiobus destroy only unregisters the bus and...

Siemens SIMATIC S7-1500 CPU 1518 MFP Improper Input Validation (CVE-2025-38736)

In the Linux kernel, the following vulnerability has been resolved: net: usb: asixdevices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits 0-31. Without this mask, invalid PHY...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Do not use devres for mdiobus As explained in the commits: 74b6d7d13307 “net: dsa: realtek: Register the MDIO bus under devres” 5135e96a3dd2 “net: dsa: Do not allocate the slavemiibus using devres” The...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: phy: mdio: fix memory leak Syzbot reported a memory leak in the MDIO bus interface. The problem stemmed from incorrect state logic. The MDIOBUSALLOCATED state indicates two possible statuses: 1. The bus is only allocated. 2. The...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net: mdio: fixed an undefined behavior in bit shifting for mdiobusregister. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning appears as follows:...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: In the net subsystem, for the dsa module, in the mv88e6xxx code path, there was a issue with the refcount leak in the mv88e6xxxmdiosregister function. The ofgetchildbyname function returns a node pointer whose refcount is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - net: dsa: felix: do not use devres for mdiobus. As explained in the commits: - 74b6d7d13307: “net: dsa: realtek: register the MDIO bus using devres”. - 5135e96a3dd2: “net: dsa: do not allocate the slavemiibus using devres”...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: r6040: Fixed the kmemleak in the probe process and removed it. There is a memory leak reported by kmemleak: - Unreferenced object 0xffff888116111000 size 2048: comm “modprobe”, pid 817, jiffies 4294759745 age 76.502s Hex dump...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net: mdio: unexport init-annotated mdiobusinit EXPORTSYMBOL and init are a bad combination because the .init.text section is freed after initialization. As a result, modules cannot use symbols annotated with init. Accessing a fre...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004863)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004863 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for mdiobusregister Shifting signed 32-bit value b...

Azure Linux 3.0 Security Update: kernel (CVE-2025-38110)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-38110 advisory. - In the Linux kernel, the following vulnerability has been resolved: net/mdiobus: Fix potential out-of- bound...

CVE-2025-71094

In the Linux kernel, the following vulnerability has been resolved: net: usb: asix: validate PHY address before use The ASIX driver reads the PHY address from the USB device via asixreadphyaddr. A malicious or faulty device can return an invalid address = PHYMAXADDR, which causes a warning in...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993042)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993042 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for mdiobusregister Shifting signed 32-bit value b...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992302)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992302 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for mdiobusregister Shifting signed 32-bit value b...

CVE-2022-50624

The CVE-2022-50624 issue is in the Linux kernel’s netsec: fix error handling in netsec_register_mdio(). The root cause is improper cleanup when phy_device_register() or get_phy_device() fail during MDIO setup, leading to memory and object leaks. The documented fix ensures that: if phy_device_regi...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-990082)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990082 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mdio: unexport init-annotated mdiobusinit EXPORTSYMBOL and init is a bad combination because...