CVE-2026-53164

The CVE-2026-53164 issue in the Linux kernel affects the iommu/dma path, specifically swiotlb handling of mappings in iommu_dma_iova_link_swiotlb(). When a mapping is unaligned, the middle segment may be empty and a 0-size call to iommu_map() occurs, which the iommupt implementation treats as ill...

EUVD-2026-39255

In the Linux kernel, the following vulnerability has been resolved: 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 and trailer. If the middle is empty because there are no aligned pages ...

CVE-2026-53150

CVE-2026-53150 affects the Linux kernel's thunderbolt validation path. The issue lies in tb_property_entry_valid() accepting zero-length entries for DIRECTORY, DATA, and TEXT types, allowing a zero-length TEXT entry to pass validation but trigger an underflow in the null-termination logic: proper...

EUVD-2026-39241

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject zero-length property entries in validator tbpropertyentryvalid accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the...

CVE-2026-53148

In the Linux kernel Thunderbolt code, tb_xdp_properties_request derives per-packet copy length from the response header and may exceed the previously allocated data buffer, allowing memcpy to write past the kcalloc allocation. The fix clamps the per-packet copy length so that the cumulative offse...

CVE-2026-53149

CVE-2026-53149 affects the Linux kernel thunderbolt subsystem. The root cause is a missing bounds check in __tb_property_parse_dir(): content_offset + content_len is not verified to fit within block_len for the root directory case. If rootdir->length is at least block_len - 2, the entry loop m...

EUVD-2026-39239

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Clamp XDomain response data copy to allocation size tbxdppropertiesrequest derives the per-packet copy length from the response header without checking that it fits in the previously allocated data buffer. A maliciou...

EUVD-2026-39240

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size tbpropertyparsedir does not check that contentoffset + contentlen fits within blocklen for the root directory case. When rootdir-length equals or exceeds blocklen - 2, the...

CVE-2026-53147

CVE-2026-53147 (Linux kernel Thunderbolt XDomain) : The issue arises in tb_xdp_handle_request() which casts a received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send an XDomain packet that passes the generic he...

EUVD-2026-39238

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tbxdphandlerequest casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer...

CVE-2026-53146

CVE-2026-53146 describes a Linux kernel Thunderbolt XDomain issue where tb_xdomain_copy() copies req->response_size bytes from the DMA buffer regardless of the actual frame size. When a short response arrives, this can read past valid frame data into stale contents from previous transactions. ...

EUVD-2026-39237

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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Thunderbolt: Fixed a use-after-free in tbdpdprxwork. The original code relied on canceldelayedwork in tbdpdprxstop, which does not ensure that the delayed work item tunnel-dprxwork has fully completed if it was already running...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Thunderbolt: Mark the XDomain as unplugged when the router is removed. I noticed that when we perform discrete host-router NVM upgrades, and the router is hot-unplugged due to NVM firmware authentication issues, if there are othe...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Thunderbolt: Do not double-dequeue a configuration request. Some of our devices may crash when calling tbcfgrequestdequeue: This issue is likely due to a general protection fault, possibly related to the non-canonical address...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed a system hang that occurred during resume with a Thunderbolt monitor. Why This issue arises when using a Thunderbolt monitor and performing suspend operations; the system may hang during resume. During the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: PCI: Fixed a use-after-free of slot-bus during hot removal. Dennis reported a boot crash on recent Lenovo laptops with a USB4 dock. Since the commit 0fc70886569c "thunderbolt: Reset USB4 v2 host router" and the commit...

Linux Distros Unpatched Vulnerability : CVE-2026-46134

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/chrome: crosectypec: Init mutex in Thunderbolt registration crostypecregisterthunderbolt missed initializing the adata-lock mutex. This leads to a NULL...

SUSE CVE-2026-46134

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: crosectypec: Init mutex in Thunderbolt registration crostypecregisterthunderbolt missed initializing the adata-lock mutex. This leads to a NULL dereference when the mutex is later acquired e.g. in...

CVE-2026-46134

A flaw was found in the Linux kernel's crosectypec component. This vulnerability occurs because a mutex, a mechanism used to prevent simultaneous access to shared resources, was not properly initialized during Thunderbolt registration. This oversight can lead to a NULL dereference, potentially...