CVE-2026-52951

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: handle empty bo and UAF races There look to be some nasty races here when triggering the invalidatemappings hook: 1 We do xeboalloc followed by the attach, before the actual full bo init step in xedmabufinitobj...

CVE-2026-52954

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain chooseargs that get decoded in...

CVE-2026-52956

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in cephxdecrypt In cephxdecrypt, a part of the buffer p is interpreted as a cephxencryptheader, and the magic field of this struct is accessed. This happens without any guarantee that t...

CVE-2026-52955

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in crushdecode A message of type CEPHMSGOSDMAP containing a crush map with at least one bucket has two fields holding the bucket algorithm. If the values in these two fields differ, an...

CVE-2026-52953

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix oops due to out of scope access Below oops triggers when kill QEMU process: Oops: general protection fault, probably for non-canonical address 0x7fffffff844eaaa7: 0000 1 SMP NOPTI Call Trace: dorawspinlock+0xaa/0x...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52945

In the Linux kernel, the following vulnerability has been resolved: Revert "wireguard: device: enable threaded NAPI" This reverts commit 933466fc50a8e4eb167acbd0d8ec96a078462e9c which is commit db9ae3b6b43c79b1ba87eea849fd65efa05b4b2e upstream. We have had three independent production user report...

UBUNTU-CVE-2026-53070

In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb udptunnelxmitskb / udptunnel6xmitskb are expected to run with BH disabled. After commit 6f1a9140ecda "add xmit recursion limit to tunnel xmit functions", on the path:...

UBUNTU-CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

UBUNTU-CVE-2026-53109

In the Linux kernel, the following vulnerability has been resolved: powerpc/pgtable-frag: Fix bad page state in ptefragdestroy powerpc uses ptfragrefcount as a reference counter for tracking it's pte and pmd page table fragments. For PTE table, in case of Hash with 64K pagesize, we have 16...

UBUNTU-CVE-2026-53079

In the Linux kernel, the following vulnerability has been resolved: netsched: fix skb memory leak in deferred qdisc drops When the network stack cleans up the deferred list via qdiscrunend, it operates on the root qdisc. If the root qdisc do not implement the TCQFDEQUEUEDROPS flag the packets que...

UBUNTU-CVE-2026-52956

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in cephxdecrypt In cephxdecrypt, a part of the buffer p is interpreted as a cephxencryptheader, and the magic field of this struct is accessed. This happens without any guarantee that t...

UBUNTU-CVE-2026-53113

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix memory leaks in beacon template setup The functions ath11kmacsetupbcntmplema and ath11kmacsetupbcntmplmbssid allocate memory for beacon templates but fail to free it when parameter setup returns an error. Since...

UBUNTU-CVE-2026-53112

In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irqpreparebcntasklet The irqpreparebcntasklet is initialized in rtlpciinit and scheduled when RTLIMRBCNINT interrupt is triggered by hardware. But it is never...

UBUNTU-CVE-2026-53095

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix abuse of kprobewritectx via freplace uprobe programs are allowed to modify struct ptregs. Since the actual program type of uprobe is KPROBE, it can be abused to modify struct ptregs via kprobe+freplace when the kprobe...

UBUNTU-CVE-2026-52978

In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state PSP version configuration and cryptographic key material, respectively but do not require...

UBUNTU-CVE-2026-53050

In the Linux kernel, the following vulnerability has been resolved: quota: Fix race of dquotscanactive with quota deactivation dquotscanactive can race with quota deactivation in quotareleaseworkfn like: CPU0 quotareleaseworkfn CPU1 dquotscanactive ==============================...

UBUNTU-CVE-2026-53051

In the Linux kernel, the following vulnerability has been resolved: PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on When PERST is deasserted twice assert - deassert - assert - deassert, a CBB Control Backbone timeout occurs at DBI register offset 0x8bc PCIEMISCCONTROL1OFF...

UBUNTU-CVE-2026-53056

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: fix mismatch between power and frequency During DPU runtime suspend, calling devpmoppsetratedev, 0 drops the MMCX rail to MINSVS while the core clock frequency remains at its original highest rate. When runtime resum...

UBUNTU-CVE-2026-53009

In the Linux kernel, the following vulnerability has been resolved: ice: fix double-free of txbuf skb If icetso or icetxcsum fail, the error path in icexmitframering frees the skb, but the 'first' txbuf still points to it and is marked as valid ICETXBUFSKB. 'nexttouse' remains unchanged, so the...