DEBIAN-CVE-2026-89991

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters pcpufreelistpush while the interrupted context holds that CPU's freelist lock...

CVE-2026-89991 bpf: Fix infinite loop in pcpu_freelist push with one possible CPU

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters pcpufreelistpush while the interrupted context holds that CPU's freelist lock...

CVE-2026-89991

CVE-2026-89991 is a bug in the Linux kernel BPF subsystem affecting __pcpu_freelist_push(). When only one CPU is possible (e.g., CONFIG_SMP=n or nr_cpus=1), an NMI re-enters pcpu_freelist_push() while the interrupted context already holds that CPU's freelist lock. The fallback loop skips the curr...

EUVD-2026-80599

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters pcpufreelistpush while the interrupted context holds that CPU's freelist lock...

CVE-2026-89991 bpf: Fix infinite loop in pcpu_freelist push with one possible CPU

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters pcpufreelistpush while the interrupted context holds that CPU's freelist lock...

Linux Distros Unpatched Vulnerability : CVE-2026-89991

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix infinite loop in pcpufreelist push with one possible CPU pcpufreelistpush can loop forever when only one CPU is possible and an NMI re-enters...

SUSE CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74624

A deadlock vulnerability exists in the Linux kernel's netfilter nf_conntrack component. When TCP or SCTP conntrack paths emit invalid-packet logs while ct->lock is held, and logging is routed to nfnetlink_log with conntrack export enabled, the log path can re-enter conntrack netlink glue that ...

Linux Distros Unpatched Vulnerability : CVE-2026-74624

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nfconntrack: defer invalid log until after unlock TCP and SCTP conntrack paths can emit invalid-packet logs while ct-lock is still held. When invalid...

CVE-2026-74337

A flaw was found in the Linux kernel, specifically within the BPF Berkeley Packet Filter subsystem. This vulnerability allows NMI Non-Maskable Interrupt and tracepoint BPF programs to re-enter certain internal locks, known as LRU Least Recently Used locks, while they are already held. This re-ent...

AZL-96096 CVE-2026-74523 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: qede: sync udptunnel ports outside qedelock in the recovery path A TX timeout on a qede NIC that has VXLAN/GENEVE tunnel ports configured wedges the rtnetlink control plane of the whole machine: NETDEV WATCHDOG: ens6f1 qede:...

UBUNTU-CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74337

CVE-2026-74337 describes a Linux kernel vulnerability where NMI/tracepoint BPF programs could re-enter per-CPU or global LRU locks held by bpf_lru_pop_free()/push_free(), causing AA-deadlock. The fix converts LRU lock sites to rqspinlock_t and adds a recovery path for failure windows to avoid nod...

Linux Distros Unpatched Vulnerability : CVE-2026-74337

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree...

expat: Fix of CVE-2026-56131

CVE-2026-56131: fix use-after-free caused by XMLResumeParser being callable from inside a handler, which re-enters the parser while the outer frame still owns bufferPtr/eventPtr...

UBUNTU-CVE-2026-68200

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: don't re-enter an instance callback that is still running The userspace-driven timer utimer TRIGGER ioctl calls sndtimerinterrupt directly with no serialization, so two threads triggering the same utimer can run...

CVE-2026-57244 Foxit PDF Editor/Reader Form Control Use-After-Free Vulnerability

After JavaScript resetting the form, the synchronization process lacks re-entry protection and object lifecycle verification, resulting in the failure of the control pointer during the traversal process. After the pointer fails, it still continues to dereference, causing the application to crash...

CVE-2019-20879

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry...

Envoy crashes when JWT authentication is configured with the remote JWKS fetching

Summary Envoy crashes when JWT authentication is configured with the remote JWKS fetching, allowmissingorfailed is enabled, multiple JWT tokens are present in the request headers and the JWKS fetch fails. Details This is caused by a re-entry bug in the JwksFetcherImpl. When the first token's JWKS...

CVE-2025-64527

Envoy vulnerability CVE-2025-64527: In versions 1.33.12, 1.34.10, 1.35.6, 1.36.2 and earlier, a re-entry bug in JwksFetcherImpl triggers a crash when JWT authentication uses remote JWKS with allow_missing_or_failed and multiple tokens in headers if the JWKS fetch fails. The first token’s JWKS fet...