UBUNTU-CVE-2026-64066

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsreadtopagecache to pause on subreq failure Fix netfsreadtopagecache so that it pauses the generation of new subrequests if an already-issued subrequest fails...

UBUNTU-CVE-2026-64047

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix off-by-one in sgchain entry count for wrapped skmsg ring When an skmsg scatterlist ring wraps sg.end sg.datamsgpl-sg.start, MAXSKBFRAGS - msgpl-sg.start + 1, msgpl-sg.data; This places the chain pointer at...

UBUNTU-CVE-2026-63994

In the Linux kernel, the following vulnerability has been resolved: tunnels: load network headers after skbcow in iptunnelpmtudbuildicmpv6 Sashiko found that iptunnelpmtudbuildicmp and iptunnelpmtudbuildicmpv6 were caching iphdr and ipv6hdr before an skbcow call which can reallocate skb-head. Fix...

UBUNTU-CVE-2026-63892

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-2026-64164

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: fix sleep while in atomic context in btrfssyncfile The trace event btrfssyncfile is called in an atomic context all trace events are and its call to dput, which is needed due to the call to dgetparent, can...

CVE-2026-64042

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Check BAR resources before exporting a DMABUF A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved before exporting. Otherwise, it's...

CVE-2026-64117

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: capture fast-RX rate before mesh reuses skb-cb ieee80211invokefastrx reads RX status through IEEE80211SKBRXCBskb, which aliases the same skb-cb storage that ieee80211rxmeshdata reuses as IEEE80211TXINFO. In the...

CVE-2026-64186

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Remove latent out-of-bounds access in IOMMU debugfs In iommummiowrite and iommucapabilitywrite, the variables dbgmmiooffset and dbgcapoffset are declared as int. However, they are populated using kstrtou32fromuser. If ...

CVE-2026-63842

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set nouserfence for JPEG v5.0.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit 0f43893d3cd478fa57836697525b338817c9c23d...

CVE-2026-63907

In the Linux kernel, the following vulnerability has been resolved: uio: uiopcigenericsva: fix double free of devmkzalloc memory uiopcisva allocates struct uiopcisvadev with devmkzalloc in probe, but then calls kfreeudev both on the probe error path label outfree and again in remove. Because...

CVE-2026-63909

In the Linux kernel, the following vulnerability has been resolved: ksmbd: OOB read regression in smbcheckpermdacl ACE-walk loops Commit d07b26f39246 "ksmbd: require minimum ACE size in smbcheckpermdacl" introduced a transposed bounds check: if offsetofstruct smbace, sid + acessize size offset 2...

CVE-2026-63894

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

CVE-2026-63923

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: validate body pcifunc in rvumboxhandlerrepeventnotify rvumboxhandlerrepeventnotify in drivers/net/ethernet/marvell/ octeontx2/af/rvurep.c queues a sender-controlled REPEVENTNOTIFY request body verbatim, and...

CVE-2026-64107

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: pcm512x: fix null-ptr dereference in pcm512xoverclockxxxput In the pcm512x chipset driver, pcm512xoverclockxxxput is defined as a general mixer kcontrol instead of a DAPM kcontrol, so struct sndsocdapmcontext must n...

CVE-2026-63953

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: fix pgtable leak in migratevmainserthugepmdpage When migratevmainserthugepmdpage jumps to unlockabort due to a PMD check failure, the pgtable allocated earlier via pteallocone is never freed, causing a memory...

CVE-2026-53372

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Block PASID attachment to nested domain with dirty tracking Kernel lacks dirty tracking support on nested domain attached to PASID, fails the attachment early if nesting parent domain is dirty tracking configured,...

CVE-2026-64156

In the Linux kernel, the following vulnerability has been resolved: netfs, afs: Fix write skipping in dir/link writepages Fix netfswritesingle and afssinglewritepages to better handle a write that would be skipped due to lock contention and WBSYNCNONE by returning 1 from netfswritesingle if it...

CVE-2026-64181

In the Linux kernel, the following vulnerability has been resolved: mm: fix vmnormalpage to handle missing support for pmdspecial/pudspecial On x86 32-bit with THP enabled, zaphugepmd is seen to generate a "WARNING: mm/memory.c:735 at vmnormalpage+0x6a/0x7d", from the VMWARNONONCEiszeropfnpfn ||...

CVE-2026-63928

In the Linux kernel, the following vulnerability has been resolved: USB: serial: omninet: fix memory corruption with small endpoint Make sure that the bulk-out buffers are at least as large as the hardcoded transfer size to avoid user-controlled slab corruption should a malicious device report a...

CVE-2026-63946

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix UAF in isorecvframe isorecvframe reads conn-sk under isoconnlock but releases the lock before using sk, with no reference held. A concurrent isosockkill can free sk in that window, causing use-after-free on...