UBUNTU-CVE-2026-80861

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...

UBUNTU-CVE-2026-80848

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: fix UAF during close ZDI reported and analyzed a race condition during close for espintcp sockets: espintcpclose frees emsg-skb via kfreeskb without holding any socket lock. Concurrently, the xfrmtransreinject wor...

CVE-2026-80782

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: do not keep a stale msc-input if no input is claimed magicmouseinputmapping caches the first hidinput's inputdev in msc-input while the report descriptor is parsed, and the rest of the driver treats a non-NULL...

CVE-2026-80778

In the Linux kernel, the following vulnerability has been resolved: futex/pi: Reject cross-mm private futex owners A private futex key borrows the waiter's mm without taking an mmusers reference. Nevertheless, attachtopiowner currently accepts an owner from a different address space and copies th...

CVE-2026-80824

In the Linux kernel, the following vulnerability has been resolved: usb: usbfs: fix use-after-free of usbdevice in usbdevrelease usbdevrelease drops its reference to the struct usbdevice before draining the list of completed async URBs, but that drain path reads back through the same object:...

CVE-2026-80850

In the Linux kernel, the following vulnerability has been resolved: tcp: fix AO info use-after-free in tcpaoconnectinit tcpv4connect adds a SYN-SENT socket to the ehash before calling tcpconnect. If TCP-AO is configured, tcpconnect first verifies that a key matches the peer and the bound device's...

CVE-2026-80863

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix OOB in freerdatomicresources freerdatomicresources iterates using qp-attr.maxdestrdatomic. Updating maxdestrdatomic before freeing the old array can make the free path walk past the old allocation and trigger a slab...

CVE-2026-80788

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations When fuzzing the nvme target code, I tripped a kernel warning in nvmettcpmapdata because the length passed into the allocator is controlled by the remote...

CVE-2026-80841

In the Linux kernel, the following vulnerability has been resolved: net/packet: defer vmalloc TXRING free until skbs finish AFPACKET TXRING skbs keep a raw pointer to their ring frame. The skb page references preserve page-backed ring blocks after pgvec is freed, but they do not preserve a vmallo...

CVE-2026-80793

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

CVE-2026-80829

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix OOB write in sndusbmidinovationoutput sndusbmidinovationoutput lays out a two-byte header at transferbuffer0..1 and passes &transferbuffer2 together with a length of ep-maxtransfer - 2 to sndrawmiditransmit:...

CVE-2026-80858

In the Linux kernel, the following vulnerability has been resolved: fuse: publish io-uring queues with release semantics fuseuringcreatequeue initializes a fuseringqueue and then publishes the pointer into ring-queuesqid with WRITEONCE under the fch-lock. There are several readers that may...

CVE-2026-80806

In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable DAX on new encrypted files Currently, when a new encrypted regular file is created, the call to ext4setinodeflagsinode, init=true in ext4newinode is made before EXT4INODEENCRYPT is set. As a result, it can set...

CVE-2026-80836

In the Linux kernel, the following vulnerability has been resolved: crypto: virtio - bound the akcipher result length virtiocryptodataqakciphercallback sets the result length from the device-reported response length without bounding it to the destination buffer, which was allocated for the origin...

CVE-2026-80818

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix CMDSYNC use-after-free on teardown armsmmuimplremove is registered as a devres action in armsmmuimplprobe, before armsmmuinitqueues allocates smmu-cmdq.q.base. On a devres unwind, whether a failed probe ...

CVE-2026-80764

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix LE list UAF on reset hciccreset clears the LE accept and resolving lists without taking hdev-lock. Other command-complete handlers serialize updates to these lists with that lock, and the debugfs readers...

CVE-2026-80843

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrmstateconstruct auth-trunc leak attachauthtrunc can allocate x-aalg while leaving x-props.aalgo at zero when the selected auth algorithm has no sadbalgid. One real case is cmacaes. xfrmstateconstruct then treats...

CVE-2026-80835

In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Remove cryptorng interface qcom-rng.c exposes the same hardware through two completely separate interfaces, cryptorng and hwrng. However, the implementation of this is buggy because it permits generation...

CVE-2026-80859

In the Linux kernel, the following vulnerability has been resolved: fuse: fix missing barrier when checking io-uring readiness fuseblockalloc reads fch-initialized and then fch-iouring. fch-iouring is set before fch-initialized, ordered by the smpwmb in fusechansetintialized, but fuseblockalloc h...

CVE-2026-80807

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject invalid block index in GC ioctl Syzbot reported list corruption caused by a double listaddtail call on bh-bassocbuffers within nilfslookupdirtydatabuffers. Analysis revealed that the root cause was the insertion of...