CVE-2026-64087

In the Linux kernel, the following vulnerability has been resolved: hwmon: pmbus/adm1266 reject implausible blackbox recordcount adm1266nvmemreadblackbox loops over a recordcount that comes straight from byte 3 of the BLACKBOXINFO response. The destination buffer is data-devmem, sized for the nvm...

UBUNTU-CVE-2026-64075

In the Linux kernel, the following vulnerability has been resolved: fprobe: Fix unregisterfprobe to wait for RCU grace period Commit 4346ba1604093 "fprobe: Rewrite fprobe on function-graph tracer" changed fprobe to register struct fprobe to an rcu-hlist, but it forgot to wait for RCU GP. Thus the...

UBUNTU-CVE-2026-64097

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Validate GPIO pin LUT table size before iterating Why&How The GPIO pin table parsers in getgpioi2cinfo and biosparsergetgpiopininfo derive an element count from the VBIOS tableheader.structuresize field, then...

UBUNTU-CVE-2026-64013

In the Linux kernel, the following vulnerability has been resolved: ACPI: button: Fix ACPI GPE handler leak during removal Commit a7e23ec17fee "ACPI: button: Install notifier for system events as well" changed the ACPI notify handler type for ACPI buttons to ACPIALLNOTIFY, but it forgot to update...

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-2026-64101

In the Linux kernel, the following vulnerability has been resolved: fwctl: pds: Validate RPC input size before parsing The fwctl core allocates the device-specific RPC input buffer with fwctlrpc.inlen and passes that buffer to the driver callback. pdsfcfwrpc casts the buffer to struct fwctlrpcpds...

UBUNTU-CVE-2026-63973

In the Linux kernel, the following vulnerability has been resolved: net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs apc-txqp and apc-rxqs. Multiple teardown paths such as manaremove,...

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-2026-64048

In the Linux kernel, the following vulnerability has been resolved: net/smc: reject CHID-0 ACCEPT that matches an empty ismdev slot On the SMC-D client, slot 0 of ini-ismdev/ini-ismchid is reserved for an SMC-Dv1 device. smcfindismv2deviceclnt populates V2 entries starting at index 1, so when no ...

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-2026-64148

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix error handling in pdscdevcmdwait Fix two cases where pdscdevcmdwait returns stale success from the completion register instead of an error: 1. FW crash: If firmware stops running, the wait loop breaks early with...

UBUNTU-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-2026-63886

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Validate CHAPR length before base64 decode chapservercomputehash allocates clientdigest as kzallocchap-digestsize and then, for BASE64-encoded responses, passes chapr directly to chapbase64decode without...

UBUNTU-CVE-2026-63976

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: clear chan-ident on ECRED reconfiguration success l2capecredreconfrsp returns early on success without clearing chan-ident. Every other L2CAP response handler l2capecredconnrsp, l2capleconnectrsp, l2capconfigrsp...

UBUNTU-CVE-2026-64043

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix race between deleting interface and adding new peer While deleting an existing ovpn interface, there is a very narrow window where adding a new peer via netlink may cause the netdevice to hang and prevent its...

UBUNTU-CVE-2026-63887

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Bound iscsiencodetextoutput appends to rspbuf iscsiencodetextoutput concatenates "key=value\0" records into login-rspbuf, an 8192-byte kzallocMAXKEYVALUEPAIRS buffer allocated in iscsitallocloginsetupbuffer...

UBUNTU-CVE-2026-63954

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfsmapdnodebitmap fails If hpfsmapdnodebitmap fails, the code would call hpfsbrelse4 on uninitialized quad buffer head, causing a crash...

UBUNTU-CVE-2026-64015

In the Linux kernel, the following vulnerability has been resolved: security/keys: fix missed RCU read section on lookup Nicholas Carlini reports that the keyring code calls assocarrayfind in findkeytoupdate without holding the RCU read lock, while the assocarraygc code really is designed around...

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-2026-64060

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...