UBUNTU-CVE-2026-64058

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsreadfolio to wait on writeback Fix netfsreadfolio to wait for an ongoing writeback to complete so that it can trust the dirty flag and whatever is attached to folio-private folio-private may get cleaned up by the...

UBUNTU-CVE-2026-64178

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: Fix UAF read of dev-name bnepaddconnection needs to keep holding the bnepsessionsem while reading dev-name just like bnepgetconnlist does; otherwise the bnepsession thread can concurrently free the netdevice, whi...

UBUNTU-CVE-2026-63978

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty "requests" list onto hn-hnrequests, leaving the local list empty, so the...

UBUNTU-CVE-2026-63972

In the Linux kernel, the following vulnerability has been resolved: net: mana: Skip redundant detach on already-detached port When manaperportqueueresetworkhandler runs after a previous detach succeeded but attach failed, the port is left in a detached state with apc-txqp and apc-rxqs already...

UBUNTU-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...

UBUNTU-CVE-2026-64182

In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: fix memory block reference leak in poison accounting memblknrpoisoninc and memblknrpoisonsub look up a memory block via findmemoryblockbyid, which acquires a reference to the memory block device. Both helpers...

UBUNTU-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...

UBUNTU-CVE-2026-64060

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix leak of request in netfswritebegin error handling Fix netfswritebegin to not leak our ref on the request in the event that we get an error from netfswaitforread...

UBUNTU-CVE-2026-63890

In the Linux kernel, the following vulnerability has been resolved: scsi: fcoe: Reject FIP descriptors with zero fipdlen in CVL walker drivers/scsi/fcoe/fcoectlr.c::fcoectlrrecvclrvlink advanced the descriptor cursor by an attacker-supplied fipdlen without ever requiring dlen = sizeofstruct fipde...

UBUNTU-CVE-2026-63844

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set nouserfence for JPEG v4.0.3 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927...

CVE-2026-63958

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: validate connector number in ucsiconnectorchange The connector number in a UCSI CCI notification is a 7-bit field supplied by the PPM. ucsiconnectorchange uses it to index the ucsi-connector array without checki...

CVE-2026-63925

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

CVE-2026-63889

In the Linux kernel, the following vulnerability has been resolved: scsi: scsitransportfc: Widen FPIN pname walker counter to u32 An adjacent Fibre Channel fabric actor that can deliver an FPIN ELS frame to an lpfc or qla2xxx Linux initiator can trigger a non-return in the generic FC transport...

CVE-2026-63930

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: fix use-after-free in error path In the errputbuffers cleanup path of iiohwconsumeralloc, the code was using listforeachentry to iterate through buffers while calling iiobufferput which can free the...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb CVE-2026-53070 In the Linux kernel, the following vulnerability has been resolved: bpf: Fix same-register dst/src OOB read and pointer leak in sockops CVE-2026-5307...

CVE-2026-53371

In the Linux kernel, the following vulnerability has been resolved: RDMA/ionic: bound nodedesc sysfs read with %.64s nodedesc64 in struct ibdevice is not guaranteed to be NUL- terminated. The core IB sysfs handler uses "%.64s" for exactly this reason drivers/infiniband/core/sysfs.c:1307, since...

UBUNTU-CVE-2026-63987

In the Linux kernel, the following vulnerability has been resolved: ethtool: coalesce: cap profile updates at NETDIMPARAMSNUMPROFILES ethnlupdateprofile walks the ETHTOOLAPROFILEIRQMODERATION nest list with an index 'i' and writes newprofilei++ without bounding i. The destination is kmemdup'd at...

UBUNTU-CVE-2026-63922

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

UBUNTU-CVE-2026-63996

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis: require exact CDB reply length Malicious SFP module could respond with rpllen longer than what cmiscdbprocessreply expected, leading to OOB writes. Malicious HW is a bit theoretical but some modules may just be bug...

UBUNTU-CVE-2026-64173

In the Linux kernel, the following vulnerability has been resolved: tracing: Do not call map-ops-eltfree if eltalloc fails In paths where tracingmapeltalloc failed to allocate objects, the map-ops-eltalloc call was never successful. In this case, map-ops-eltfree should not be called...