CVE-2026-64056

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmacrx is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device ...

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-2026-64097

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-2026-63887

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-2026-63890

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-2026-63877

In the Linux kernel, the following vulnerability has been resolved: serial: dz: Convert to use a platform device Prevent a crash from happening as the first serial port is initialised: Console: switching to colour frame buffer device 160x64 tgafb: SFB+ detected, rev=0x02 fb0: Digital ZLX-E1 frame...

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...

UBUNTU-CVE-2026-63968

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6selectpath Found while auditing the same pattern Sashiko reported in rt6fillnode 1. Apply the same fix as commit f8d8ce1b515a "ipv6: fix possible infinite loop in fib6infousesdev". Writers...

UBUNTU-CVE-2026-64165

In the Linux kernel, the following vulnerability has been resolved: ARM: integrator: Fix early initialization Starting with commit bdb249fce9ad4 "ARM: integrator: read counter using syscon/regmap", intcpinitearly calls sysconregmaplookupbycompatible which in turn calls ofsysconregister. This...

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-2026-63941

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly cap ZCREL2 provided by a guest hypervisor ZCREL2 can be updated by a VHE guest hypervisor either using ZCREL2 which traps or ZCREL1 which does not trap. KVM handles both in different way: - on ZCREL2 trap,...

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-2026-64182

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-2026-64089

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative lastchangesetlen batadvpivtt::lastchangesetlen len was declared as s16, but the field is never intended to hold a negative value. When a value greater than 32767 is assigned, it wraps to a negative...

UBUNTU-CVE-2026-64001

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix setup list UAF on proc write error sndpcmossprocwrite links a newly allocated setup entry into the OSS setup list before duplicating the task name. If the task-name allocation fails, the error path frees the...

UBUNTU-CVE-2026-64086

In the Linux kernel, the following vulnerability has been resolved: hwmon: pmbus/adm1266 include PEC byte in pmbusblockxfer read buffer adm1266pmbusblockxfer sets up the read transaction with .buf = data-readbuf, .len = ADM1266PMBUSBLOCKMAX + 2, but readbuf in struct adm1266data is declared as u8...

CVE-2026-64162

In the Linux kernel, the following vulnerability has been resolved: idpf: fix readdevclklock spinlock init in idpfptpinit In idpfptpinit, readdevclklock is initialized after ptpscheduleworker had already been called and after idpfptpsettime64 could reach the lock. The PTP aux worker fires...

UBUNTU-CVE-2026-64055

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Carry over frag counter The gmacrx NAPI poll function assembles packets in an SKB from a ring buffer. If the ring buffer gets completely emptied during a poll cycle, we exit gmacrx, but the packet is not y...

CVE-2026-63981

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

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...