CVE-2026-53029

A flaw was found in the Linux kernel's ntfs3 filesystem driver. This vulnerability occurs due to an uninitialized local variable lcn when handling zero-length data during I/O operations. An attacker could potentially exploit this flaw to cause a denial of service or information disclosure due to...

CVE-2026-53132

A flaw was found in the Linux kernel's vsock/virtio component. A remote attacker could send specially crafted packets with zero length and an End-of-Message EOM flag. This could lead to an unbounded queue of packets, consuming excessive memory and potentially causing a Denial of Service DoS due t...

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...

CVE-2026-53210

A flaw was found in the Linux kernel's Trusted Execution Environment TEE subsystem. A shared memory shm leak occurs in the registershmhelper function when TEEIOCSHMREGISTER is called with a zero-length shared memory registration. This can be triggered by a local attacker, potentially leading to a...

EUVD-2026-39565

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

CVE-2026-6331

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

CVE-2026-6329

CVE-2026-6329 describes a vulnerability in PKCS#12 MAC verification in wolfSSL where the verification uses an attacker-controlled comparison length. The PKCS#12 verify path compares the locally computed HMAC against the MAC parsed from the PKCS#12 structure using a length taken directly from atta...

CVE-2026-6331

CVE-2026-6331 describes a vulnerability in the OpenSSL-compatibility HMAC verify path where EVP_DigestVerifyFinal could accept a zero-length or truncated tag. The root cause is insufficient validation of the supplied signature length, which was only checked to not exceed the MAC length rather tha...

CVE-2026-6331

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

CVE-2026-6331 HMAC zero-length tag forgery in EVP_DigestVerifyFinal

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service...

CVE-2026-53210

In the Linux kernel, CVE-2026-53210 fixes a shm leak in register_shm_helper() within the TEE SHM path. The function allocates shm before calling iov_iter_npages(); if iov_iter_npages() returns 0, it jumps to err_ctx_put and leaks the allocated shm. The issue could be triggered by TEE_IOC_SHM_REGI...

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-2026-53164

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...

CVE-2026-53164

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-2026-53150

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-2026-53132

CVE-2026-53132 concerns the Linux kernel via vsock/virtio, addressing an unbounded skb queue in the virtio transport path. The root cause is that virtio_transport_inc_rx_pkt() and virtio_transport_recv_enqueue() can allow a growing queue when fed with packets of length 0 ending with VIRTIO_VSOCK_...

EUVD-2026-38897

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent uninitialized lcn caused by zero len syzbot reported a uninit-value in ntfsiomapbegin 1. Since runs was not touched yet, runlookupentry immediately fails and returns false, which makes the value of "len" 0...