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...

CVE-2026-63865

In the Linux kernel, the following vulnerability has been resolved: bpf: Drop tasktoinode and inetconnestablished from lsm sleepable hooks bpflsmtasktoinode is called under rcureadlock and bpflsminetconnestablished is called from softirq context, so neither hook can be used by sleepable LSM...

CVE-2026-64125

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: keep RBUF EEE/PM disabled Setting RBUFEEEEN | RBUFPMEN in RBUFENERGYCTRL breaks the RX path on GENET hardware once MAC EEE becomes active. RX traffic stops flowing while the link stays up and the usual descriptor/R...

UBUNTU-CVE-2026-64179

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: fix potential memory leaks in ipcimeminit The memory allocated in ipcprotocolinit is not freed on the error paths that follow in ipcimeminit. Fix that by calling the corresponding release function ipcprotocoldein...

CVE-2026-63924

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6hopjumbo ipv6hopjumbo calls pskbtrimrcsum, which can change skb pointers. Let's recompute nh pointer to make sure any change won't mess things up...

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-2026-63928

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-2026-63894

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-2026-63893

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-2026-63909

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-2026-63849

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v5.0.1 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-64126

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate Add Extended Advertising Data length MGMTOPADDEXTADVDATA is registered as a variable-length command, with MGMTADDEXTADVDATASIZE as the fixed header size. The handler then uses cp-advdatalen and...

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-2026-64156

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-2026-63854

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v3.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-64004

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix locking in .getsockopt Mirror iucvsocksetsockopt and wrap the whole switch in locksock/releasesock. The pre-existing SOMSGLIMIT-only lock becomes redundant and is removed. Any AFIUCV HIPER user can potentially crash...

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...

UBUNTU-CVE-2026-63951

In the Linux kernel, the following vulnerability has been resolved: zram: fix use-after-free in zramwritebackendio A crash was observed in zramwritebackendio due to a NULL pointer dereference in wakeup. The root cause is a race condition between the bio completion handler zramwritebackendio and t...

UBUNTU-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...

UBUNTU-CVE-2026-64125

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: keep RBUF EEE/PM disabled Setting RBUFEEEEN | RBUFPMEN in RBUFENERGYCTRL breaks the RX path on GENET hardware once MAC EEE becomes active. RX traffic stops flowing while the link stays up and the usual descriptor/R...