UBUNTU-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-2026-64112

In the Linux kernel, the following vulnerability has been resolved: rbd: eliminate a race in lockdwork draining on unmap Given how rbdlockaddrequest and rbdimgexclusivelock are written, lockdwork may be requeued more than it's actually needed: for example in case a new I/O request comes in while ...

UBUNTU-CVE-2026-63911

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: reset runtime state when cloning SAs iptfsclonestate clones the IPTFS mode data with kmemdup. This copies runtime objects which must not be shared with the original SA, including the embedded skbuffhead, hrtimers,...

UBUNTU-CVE-2026-53373

In the Linux kernel, the following vulnerability has been resolved: mm/vma: do not try to unmap a VMA if mmapprepare invoked from mmap The mmapprepare hook functionality includes the ability to invoke mmapprepare from the mmap hook of existing 'stacked' drivers, that is ones which are capable of...

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...

UBUNTU-CVE-2026-64003

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Run queues for all non-SDEVDEL devices from scsirunhostqueues While a SCSI host is in a recovery state, scsimqrequeuecmd will not set the requeue list for a requeued command to be kicked in the future. The expectation...

UBUNTU-CVE-2026-63879

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix amdgpuhmmrangegetpages The notifier sequence must only be read once or otherwise we could work with invalid pages. While at it also fix the coding style, e.g. drop the pre-initialized return value and use the comm...

CVE-2026-64041

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: fs210x: fix possible buffer overflow In fs210xeffectsceneinfo, a string was copied like this: strscpyDST, SRC, strlenSRC + 1; A buffer overflow would happen if strlenSRC = sizeofDST. Actually, strscpy must be used...

UBUNTU-CVE-2026-64016

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix durable reconnect error path file lifetime After a durable reconnect succeeds, ksmbdreopendurablefd republishes the same ksmbdfile into the session volatile-id table. If smb2open then takes a later error path, cleanup...

UBUNTU-CVE-2026-64028

In the Linux kernel, the following vulnerability has been resolved: tracing: Avoid NULL return from histfieldname on truncation histfieldname returns "" everywhere except the fully-qualified VARREF/EXPR case, where snprintf truncation returns NULL early and bypasses the bottom NULL-"" guard...

CVE-2026-63872

In the Linux kernel, the following vulnerability has been resolved: esp: fix page frag reference leak on skbtosgvec failure In espoutputtail, when esp-inplace is false, the old skb page frags are replaced with a new page from the xfrm pagefrag cache. The source scatterlist sg is built from the ol...

CVE-2026-63867

In the Linux kernel, the following vulnerability has been resolved: mptcp: close TOCTOU race while computing rcvwnd The MPTCP output path access locklessly the MPTCP-level ackseq in multiple times, using possibly different values for the dataack in the DSS option and to compute the announced rcv...

UBUNTU-CVE-2026-63869

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: limit injected antenna index in ieee80211parsetxradiotap When parsing the radiotap header of an injected frame, ieee80211parsetxradiotap uses the IEEE80211RADIOTAPANTENNA value directly as a shift count:...

CVE-2026-63870

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: only accept IPv6 packets in lowpanxmit The aoe driver or similar generates a non-IPv6 packet e.g., ETHPAOE and queues it for transmission via devqueuexmit on a 6LoWPAN interface configured by the user or test...

CVE-2026-63868

In the Linux kernel, the following vulnerability has been resolved: net: garp: fix unsigned integer underflow in garppduparseattr The receive-side GARP attribute parser computes dlen with reversed operands: dlen = sizeofga - ga-len; ga-len is the on-wire attribute length and includes the GARP...

UBUNTU-CVE-2026-63874

In the Linux kernel, the following vulnerability has been resolved: net: mctp: usb: fix race between urb completion and rxretry cancellation It's possible that sequencing between setting -stopped and cancelling the rxretry work in ndostop could leave us with an urb queued: T1: ndostop T2:...

UBUNTU-CVE-2026-63811

In the Linux kernel, the following vulnerability has been resolved: f2fs: read COW data with the original inode during atomic write When updating an atomic-write file, f2fswritebegin may read the previously written data back from the COW inode: prepareatomicwritebegin locates the block in the COW...

CVE-2026-53401

In the Linux kernel, the following vulnerability has been resolved: fbdev: omap2: fix use-after-free in omapfbmmap omapfbmmap has a race condition with OMAPFBSETUPPLANE ioctl that can lead to use-after-free: The fbmmap entry point holds mmlock but not lock fbinfo-lock, while ioctl handlers like...

CVE-2026-63833

In the Linux kernel, the following vulnerability has been resolved: ntfs3: reject direct userspace writes to reserved $LX xattrs NTFS3 uses $LXUID, $LXGID, $LXMOD and $LXDEV as internal WSL permission metadata and reloads them into iuid, igid and imode from ntfsgetwslperm. Because the empty-prefi...

CVE-2026-53398

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix SECINFONONAME decode error cleanup nfsd4decodesecinfononame currently initializes sinexp after decoding sinstyle. If the XDR stream is truncated, the decoder returns nfserrbadxdr before sinexp is initialized. Since comm...