UBUNTU-CVE-2026-53012

In the Linux kernel, the following vulnerability has been resolved: nexthop: fix IPv6 route referencing IPv4 nexthop syzbot reported a panic 1 2. When an IPv6 nexthop is replaced with an IPv4 nexthop, the hasv4 flag of all groups containing this nexthop is not updated. This is because...

UBUNTU-CVE-2026-52992

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

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...

CVE-2026-53003

In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression PFC is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an...

UBUNTU-CVE-2026-52982

In the Linux kernel, the following vulnerability has been resolved: net: usb: rtl8150: fix use-after-free in rtl8150startxmit syzbot reported a KASAN slab-use-after-free read in rtl8150startxmit when accessing skb-len for tx statistics after usbsubmiturb has been called: BUG: KASAN:...

UBUNTU-CVE-2026-52963

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI endpoint descriptor scans sndusbmidigetmsinfo validates the internal MIDIStreaming endpoint descriptor size before using baAssocJackID, but the descriptor walker can still return a class-specific...

UBUNTU-CVE-2026-52949

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix ttmboshrink infinite LRU walk on backup failure Apply the same fix as b2ed01e7ad "drm/ttm: Fix ttmboswapout infinite LRU walk on swapout failure" to the ttmboshrink path. Move delbulkmove from before the backup to...

UBUNTU-CVE-2026-52962

In the Linux kernel, the following vulnerability has been resolved: ceph: fix a buffer leak in cephsetxattr The oldblob in cephsetxattr can store ci-ixattrs.preallocblob value during the retry. However, it is never called the cephbufferput for the oldblob object. This patch fixes the issue of the...

UBUNTU-CVE-2026-53110

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend...

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-2026-52965

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix ttmboswapout infinite LRU walk on swapout failure When ttmttswapout fails, the current code calls ttmresourceaddbulkmove followed by ttmresourcemovetolrutail to restore the resource's bulkmove membership. However,...

UBUNTU-CVE-2026-53121

In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amdpstateeppcpuinit On failure to set the epp, the function amdpstateeppcpuinit returns with an error code without freeing the cpudata object that was allocated at the beginning of the function...

UBUNTU-CVE-2026-53000

In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to register the callbacks. However,...

UBUNTU-CVE-2026-53100

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix deadlock in remain-on-channel mt76remainonchannel and mt76roccomplete call mt76setchannel while already holding dev-mutex. Since mt76setchannel also acquires dev-mutex, this results in a deadlock. Use mt76setchann...

UBUNTU-CVE-2026-53105

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: prevent NULL vif dereference in mt7925macwritetxwi Check for a NULL vif before accessing ieee80211vifismldvif to avoid a potential kernel panic in scenarios where vif might not be initialized...

UBUNTU-CVE-2026-53116

In the Linux kernel, the following vulnerability has been resolved: s390/ap: use generic driveroverride infrastructure When the AP masks are updated via apmaskstore or aqmaskstore, apbusrevisebindings is called after apattrmutex has been released. This calls aprevisereserved, which accesses the...

UBUNTU-CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

UBUNTU-CVE-2026-54906

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can...

UBUNTU-CVE-2026-53102

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: Fix memory leak after mt76connacmcuallocstareq mt76connacmcuallocstareq allocates an skb which is expected to be freed eventually by mt76mcuskbsendmsg. However, currently if an intermediate function fails before...

UBUNTU-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...