CVE-2023-3640

SCTF2023kernelpwn SCTF 2023 kernel pwn Off-topic: A little advertisement — the author is a 2024 undergraduate graduate student, participating in this year's autumn recruitment. Feel free to contact me sycrop This problem aims to test two points. 1. The starting points of the cpu entry area mappin...

Linux Distros Unpatched Vulnerability : CVE-2026-93174

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Copy per-CPU map value padding in copymapvaluelong In kernel, per-CPU map elements are stored with roundupmap-valuesize, 8 bytes. On UAPI lookup paths, it...

Linux Distros Unpatched Vulnerability : CVE-2026-90121

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - irqchip/gic-v5: Clear per-CPU IRS data on teardown IRS affinity setup publishes an IRS pointer and IAFFID state in the per-CPU data before the remaining IRS...

DEBIAN-CVE-2026-93174

In the Linux kernel, the following vulnerability has been resolved: bpf: Copy per-CPU map value padding in copymapvaluelong In kernel, per-CPU map elements are stored with roundupmap-valuesize, 8 bytes. On UAPI lookup paths, it copies the rounded size for each CPU into a temporary buffer. However...

CVE-2026-93174 bpf: Copy per-CPU map value padding in copy_map_value_long()

In the Linux kernel, the following vulnerability has been resolved: bpf: Copy per-CPU map value padding in copymapvaluelong In kernel, per-CPU map elements are stored with roundupmap-valuesize, 8 bytes. On UAPI lookup paths, it copies the rounded size for each CPU into a temporary buffer. However...

EUVD-2026-82282

In the Linux kernel, the following vulnerability has been resolved: bpf: Copy per-CPU map value padding in copymapvaluelong In kernel, per-CPU map elements are stored with roundupmap-valuesize, 8 bytes. On UAPI lookup paths, it copies the rounded size for each CPU into a temporary buffer. However...

EUVD-2026-81714

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v5: Clear per-CPU IRS data on teardown IRS affinity setup publishes an IRS pointer and IAFFID state in the per-CPU data before the remaining IRS initialization can fail. The error path then frees the IRS data without...

CVE-2026-90121 irqchip/gic-v5: Clear per-CPU IRS data on teardown

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v5: Clear per-CPU IRS data on teardown IRS affinity setup publishes an IRS pointer and IAFFID state in the per-CPU data before the remaining IRS initialization can fail. The error path then frees the IRS data without...

CVE-2026-90121

CVE-2026-90121 affects the Linux kernel GICv5 interrupt controller driver (irqchip/gic-v5). During IRS (Interrupt Routing Structure) affinity setup, an IRS pointer and IAFFID state are published in per-CPU data before the remaining initialization can fail. On the error path and normal teardown, t...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: kthread: Unpark only parks kthreads. Calling kthreadunpark unconditionally is mostly harmless when the kthread is already unparked. In that case, the wake-up call is simply ignored because the task is not in the TASKPARKED state...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a race condition between CPU buffer write and swapping. A warning occurred in rbendcommit at the following line of code: if RBWARNONcpubuffer, !localread&cpubuffer-committing WARNING: CPU: 0 PID: 139 at...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: UM: cpuinfo: Fixed a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS are selected, cpumaxbitswarn generates a runtime warning similar to the following, while we display /proc/cpuinfo. This...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: spi: Fixed a use-after-free issue during controller registration failures. Be sure to also deregister from the driver core in case the per-cpu statistics allocation fails during controller registration, in order to avoid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Netfilter: Use getrandomu32 instead of prandom. This issue may occur during the update of per-cpu rndstate from the user context, i.e., at the localout path. BUG: Using smpprocessorid in preemptible 00000000 code: nginx/2725...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sh: cpuinfo: Fixed a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS are selected, cpumaxbitswarn generates a runtime warning similar to the following when showing /proc/cpuinfo. This issue...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed a memory leak in the LRU and LRUPERCPU hash maps The LRU and LRUPERCPU maps allocate a new element during updates, before locking the target hash table bucket. Immediately afterwards, the maps attempt to lock the bucke...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: scsi: lpfc: Fixed the call trace observed during I/O operations with CMF enabled. The following issue was observed with CMF enabled: BUG: Use of smpprocessorid in preemptible code: kernel: Caller is lpfcupdatecmfcmd+0x214/0x42...

Linux Distros Unpatched Vulnerability : CVE-2026-89459

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - s390/percpu: Fix MVIYPERCPU with older binutils Commit a737737cdb9c s390/percpu: Infrastructure for more efficient thiscpu operations introduced MVIYPERCPU, whi...

Linux Distros Unpatched Vulnerability : CVE-2026-89581

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf, x86: Fix per-CPU address resolution into an extended register The destination of the per-CPU address MOV is encoded in ModRM.reg, which is extended by REX....

Linux Distros Unpatched Vulnerability : CVE-2026-80963

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - dm-stats: fix a crash if allocation of per-cpu data fails If dmkvzallocpercpuallocsize, cputonodecpu fails, the code jumps to the out label and calls dmstatfre...