UBUNTU-CVE-2026-99139

In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free in dotcpgetsockoptTCPCONGESTION dotcpgetsockopt reads icsk-icskcaops-name without holding rcureadlock. Since commit 0baf26b0fcd7 "bpf: tcp: Support tcpcongestionops in bpf", icskcaops can point to...

UBUNTU-CVE-2026-99196

In the Linux kernel, the following vulnerability has been resolved: net: au1000: move setting of netops to fix crash au1000probe calls au1000miiprobe, which connects the PHY, before dev-netdevops is assigned. phyattachdirect - phylinktopoaddphy reads dev-netdevops through netdevneedopslock since...

UBUNTU-CVE-2026-99128

In the Linux kernel, the following vulnerability has been resolved: sctp: validate chunk length in the inqueue parser SCTP chunks always include a four-byte generic header, but sctpinqpop currently accepts shorter declared lengths. A zero-length chunk leaves chunkend at the current header. When...

UBUNTU-CVE-2026-99193

In the Linux kernel, the following vulnerability has been resolved: net: ti: icssm-prueth: Move setting of netops to fix crash icssmpruethnetdevinit calls ofphygetandconnect before ndev-netdevops is assigned. phyattachdirect - phylinktopoaddphy reads dev-netdevops through netdevneedopslock since...

UBUNTU-CVE-2026-99205

In the Linux kernel, the following vulnerability has been resolved: sched/core: Call wakeuppreempt for queued tasks during class change Paul reported recent RCU changes exposed a lost resched where CPU idles with a rcutorture thread waiting while being completely runnable. Dumping the rq state at...

CVE-2026-99173: Linux: In the Linux kernel, the following vulnerability has been resolved: eventfs: Free the eventfs_inode after an rcu grace…

In the Linux kernel, the following vulnerability has been resolved: eventfs: Free the eventfsinode after an rcu grace period too tracefsdrevalidate reads -isfreed of the eventfsinode that dentry-dfsdata points to, and -drevalidate is called in rcu pathwalk mode with nothing but rcureadlock held...

CVE-2026-99147: Linux: In the Linux kernel, the following vulnerability has been resolved: drm/exec: don't immediately add prelocked obj to…

In the Linux kernel, the following vulnerability has been resolved: drm/exec: don't immediately add prelocked obj to array of locked objs When a contention is detected the drmexec object grabs a reference to the contended object, unlocks all other objects and pre-locks the contended one before...

UBUNTU-CVE-2026-99134

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix data race and NULL deref on local-assocdev local-assocdev is shared between the association path and the association-response worker without common synchronization. mac802154performassociation stores the coordinato...

CVE-2026-99145: Linux: In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't transfer shrinker pages for pinned…

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't transfer shrinker pages for pinned bos on purgeable state change Pinned bos have their pages removed from the shrinker's shrinkable / purgeable counts on pin, and added back on unpin according to the bo's purgeable...

CVE-2026-99179: Linux: In the Linux kernel, the following vulnerability has been resolved: watch_queue: Fix note pool publication race in…

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix note pool publication race in watchqueuesetsize There is a race between watchqueuesetsize and postonenotification. watchqueuesetsize publishes wqueue-notes, notesbitmap, nrpages and nrnotes with plain stores, and...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: fou: Fix use-after-free in foucreate CVE-2026-74496 In the Linux kernel, the following vulnerability has been resolved: macvlan: inherit neededheadroom and neededtailroom from lowerdev CVE-2026-74743 In the Linux...

CVE-2026-99216: Linux: In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: Don't reset VMBus connection state on…

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: Don't reset VMBus connection state on error/exit paths In two places, current code forces vmbusconnection.connstate to DISCONNECTED prior to calling vmbusdisconnect. But vmbusdisconnect calls vmbusinitiateunload, whi...

CVE-2026-99141: Linux: In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash in print_graph_function_event()…

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash in printgraphfunctionevent tracingsettracer assigns the flags of the newly selected tracer with: tr-currenttraceflags = t-flags ? : t-tracer-flags; If the new tracer defines neither static flags nor default...

CVE-2026-99163: Linux: In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Reject non-stacktrace fields…

In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Reject non-stacktrace fields for synthetic stacktrace fields In checksynthfield, when a synthetic event field is a stacktrace field-isstack and the histogram field is not a "long" stacktrace array, validation...

CVE-2026-99159: Linux: In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix the sub-buffer array base in…

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix the sub-buffer array base in rbmetasubbufidx On a persistent ring buffer, rbmetasubbufidx can return an index one sub-buffer too high. rbsetupidsmetapage then fills subbufids shifted by one and leaves subbufids0...

UBUNTU-CVE-2026-99213

In the Linux kernel, the following vulnerability has been resolved: vsock: treat TCPCLOSING as once-established Handle the TCPESTABLISHED - TCPCLOSING transition on OPRST, which can race with the connect loop. Immediately break and return 0 on ESTABLISHED/CLOSING. The return value of connect shou...

CVE-2026-99187: Linux: In the Linux kernel, the following vulnerability has been resolved: perf: Fix perf_pmu_migrate_context() leaving events…

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfpmumigratecontext leaving events behind perfpmuremove walks the group leaders of a CPU and PMU with perfeventgroupsforcpupmu, removing each one as it goes. perfremovefromcontext takes the leader out of the groups...

CVE-2026-99211: Linux: In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and…

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

CVE-2026-99180: Linux: In the Linux kernel, the following vulnerability has been resolved: unicode: free the map after a grace period…

In the Linux kernel, the following vulnerability has been resolved: unicode: free the map after a grace period genericcidhash and genericcidcompare read sb-sencoding and dereference the unicode map while a pathwalk in rcu mode holds nothing but rcureadlock. The filesystems that use them, ext4, f2...

CVE-2026-99213: Linux: In the Linux kernel, the following vulnerability has been resolved: vsock: treat TCP_CLOSING as once-established Handle…

In the Linux kernel, the following vulnerability has been resolved: vsock: treat TCPCLOSING as once-established Handle the TCPESTABLISHED - TCPCLOSING transition on OPRST, which can race with the connect loop. Immediately break and return 0 on ESTABLISHED/CLOSING. The return value of connect shou...