UBUNTU-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-2026-53165

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

UBUNTU-CVE-2026-53250

In the Linux kernel, the following vulnerability has been resolved: xsk: cache csumstart/csumoffset to fix TOCTOU in xskskbmetadata The TX metadata area resides in the UMEM buffer which is memory-mapped and concurrently writable by userspace. In xskskbmetadata, csumstart and csumoffset are read...

UBUNTU-CVE-2026-53165

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53199

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53250

CVE-2026-53250 : In the Linux kernel, the xsk_skb_metadata() path is vulnerable to a TOCTOU race in which csum_start and csum_offset are read from shared UMEM and then read again for skb assignment. A malicious userspace process can overwrite values between reads, bypassing bounds checks and caus...

CVE-2026-53229

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix DMA and xdpframe leak on XDPTX xmit failure In the XSK branch of mlx5exmitxdpbuff, when sq-xmitxdpframe returns false e.g. XDPSQ is full, the function returns without unmapping the DMA address or freeing the...

CVE-2026-53229 net/mlx5e: xsk: Fix DMA and xdp_frame leak on XDP_TX xmit failure

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix DMA and xdpframe leak on XDPTX xmit failure In the XSK branch of mlx5exmitxdpbuff, when sq-xmitxdpframe returns false e.g. XDPSQ is full, the function returns without unmapping the DMA address or freeing the...

CVE-2026-53199 hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53199 hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53199

CVE-2026-53199 pertains to the Linux kernel hv_netvsc path, where netvsc_copy_to_send_buf previously used phys_to_virt() on page buffer PFNs and could fault when fragments referenced high mem/user pages on 32-bit x86 with HIGHMEM. The fix maps pages with kmap_local_page() and reconstructs native ...

CVE-2026-53177 bnxt_en: Fix NULL pointer dereference

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .errordetected callback,...

EUVD-2026-39256

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53165 iomap: avoid potential null folio->mapping deref during error reporting

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53165

CVE-2026-53165 describes a race in the Linux kernel iomap subsystem where, during buffered read error reporting, a separate in-flight read can detach a folio and set folio->mapping to NULL before an error is reported, leading to a NULL dereference of folio->mapping in fserror_report_io(). T...

CVE-2026-53165 iomap: avoid potential null folio->mapping deref during error reporting

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53164 iommu/dma: Do not try to iommu_map a 0 length region in swiotlb

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 iommu/dma: Do not try to iommu_map a 0 length region in swiotlb

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 ...

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 entry concerns the Linux kernel IOMMU DMA SWIOTLB path. The vulnerability arises when iommu_dma_iova_link_swiotlb() maps an unaligned memory region and, if the middle portion is empty, calls iommu_map() with a 0 size, which the iommu_pt implementation treats as illegal, corrupt...