EUVD-2026-45664

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

PT-2026-61208

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the thunderbolt component where the tb property parse dir function lacks a recursion depth counter when processing DIRECTORY entries. A malicious XDomain peer can crea...

CVE-2026-63893: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject u32 wrap in tbpropertyentryvalid entry-value is u32 and entry-length is u16; the sum is performed in u32 and wraps. A malicious XDomain peer can pick value = 0xffffff00, length = 0x100 so the sum...

CVE-2026-63892: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject dirlen length u16 widened to sizet. Two distinct OOB conditions follow when entry-length uuid, ... which always reads 4 dwords from diroffset. tbpropertyentryvalid only enforces diroffset +...

CVE-2026-53146

A flaw was found in the Linux kernel's Thunderbolt subsystem. A malicious or compromised Thunderbolt/USB4 peer can send a specially crafted, short response. This causes the tbxdomaincopy function to read beyond the valid data in the received frame, potentially exposing stale contents from previou...

Linux Distros Unpatched Vulnerability : CVE-2026-53148

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: Clamp XDomain response data copy to allocation size tbxdppropertiesrequest derives the per-packet copy length from the response header without...

Linux Distros Unpatched Vulnerability : CVE-2026-53164

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iommu/dma: Do not try to iommumap a 0 length region in swiotlb iommudmaiovalinkswiotlb processes a mapping that is unaligned in three parts, the head, middle an...

Linux Distros Unpatched Vulnerability : CVE-2026-53146

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: Limit XDomain response copy to actual frame size tbxdomaincopy copies req-responsesize bytes from the received packet buffer regardless of the actu...

Linux Distros Unpatched Vulnerability : CVE-2026-53150

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: Reject zero-length property entries in validator tbpropertyentryvalid accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A...

Linux Distros Unpatched Vulnerability : CVE-2026-53149

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: Bound root directory content to block size tbpropertyparsedir does not check that contentoffset + contentlen fits within blocklen for the root...

Linux Distros Unpatched Vulnerability : CVE-2026-53147

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: Validate XDomain request packet size before type cast tbxdphandlerequest casts the received packet buffer to protocol-specific structs without...

thunderbolt: Clamp XDomain response data copy to allocation size

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thunderbolt: Reject zero-length property entries in validator

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thunderbolt: Bound root directory content to block size

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thunderbolt: Limit XDomain response copy to actual frame size

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CVE-2026-53149

A flaw was found in the Linux kernel's Thunderbolt driver. The tbpropertyparsedir function, responsible for parsing root directory content, does not properly validate the size of the content against the allocated block size. This oversight allows the system to read beyond the intended memory...

CVE-2026-53147

A flaw was found in the Linux kernel's Thunderbolt component. A remote attacker could exploit this vulnerability by sending a malformed XDomain packet. This could lead to an out-of-bounds read, potentially resulting in information disclosure or system instability...

CVE-2026-53164

A flaw was found in the Linux kernel's input/output memory management unit IOMMU Direct Memory Access DMA subsystem, specifically within the software IOMMU bounce buffer SWIOTLB mechanism. This vulnerability occurs when the system attempts to map a zero-length memory region, which can be triggere...

SUSE CVE-2026-53146

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Limit XDomain response copy to actual frame size tbxdomaincopy copies req-responsesize bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the val...