UBUNTU-CVE-2026-23313

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

CVE-2026-23313 i40e: Fix preempt count leak in napi poll tracepoint

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

CVE-2026-23313

CVE-2026-23313 : In the Linux kernel, a preempt-count leak was fixed in the i40e driver by replacing get_cpu() with smp_processor_id() in the napi poll tracepoint assignment. The leak occurred because put_cpu() was not invoked to undo the cpu reference, as illustrated by preempt_count traces. The...

CVE-2026-23313

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

CVE-2026-23313 i40e: Fix preempt count leak in napi poll tracepoint

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

CVE-2026-23313

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

CVE-2026-23313: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putcpu to undo it: softirq: huh, entered softirq 3 NETRX with preemptcoun...

Linux Distros Unpatched Vulnerability : CVE-2026-23313

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - i40e: Fix preempt count leak in napi poll tracepoint Using getcpu in the tracepoint assignment causes an obvious preempt count leak because nothing invokes putc...

UBUNTU-CVE-2026-23134

In the Linux kernel, the following vulnerability has been resolved: slab: fix kmallocnolock context check for PREEMPTRT On PREEMPTRT kernels, locallock becomes a sleeping lock. The current check in kmallocnolock only verifies we're not in NMI or hard IRQ context, but misses the case where...

SUSE CVE-2023-54086

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

EUVD-2023-60359

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

CVE-2023-54086

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

CVE-2023-54086

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

UBUNTU-CVE-2023-54086

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

CVE-2023-54086

The CVE targets the Linux kernel’s BPF trampoline handling. It describes a vulnerability where preempt_count_sub/add was left unprotected in __bpf_prog_enter_recur/__bpf_prog_exit_recur, causing panics and stack/IRQ guard page errors when trampolines are attached. The fix is to add these two func...

CVE-2023-54086 bpf: Add preempt_count_{sub,add} into btf id deny list

In the Linux kernel, the following vulnerability has been resolved: bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching trampoline to them we get panic as follows, 867.843050 BUG: TASK stack...

Linux Distros Unpatched Vulnerability : CVE-2023-54086

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Add preemptcountsub,add into btf id deny list The recursion check in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When attaching...

CVE-2022-49018 mptcp: fix sleep in atomic at close time

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix sleep in atomic at close time Matt reported a splat at msk close time: BUG: sleeping function called from invalid context at net/mptcp/protocol.c:2877 inatomic: 1, irqsdisabled: 0, nonblock: 0, pid: 155, name:...

SUSE CVE-2021-47454

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: do not decrement idle task preempt count in CPU offline With PREEMPTCOUNT=y, when a CPU is offlined and then onlined again, we get: BUG: scheduling while atomic: swapper/1/0/0x00000000 no locks held by swapper/1/0...

CVE-2021-47454

A vulnerability was found in the Linux kernel's powerpc/smp architecture, where the idle task's preemption count was incorrectly decremented during the CPU offline process. This issue caused a "scheduling while atomic" error when a CPU was offlined and then onlined again, leading to potential...