Kernel: ebpf: insufficient stack type checks in dynptr

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UBUNTU-CVE-2023-39191

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAPBPF privileges to escalate privileges and...

SUSE CVE-2023-39191

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAPBPF privileges to escalate privileges and...

Linux kernel 安全漏洞

Linux Kernel is an open source operating system. A security vulnerability exists in the Linux Kernel eBPF processing, which can be exploited by a local attacker to submit a special request that can elevate privileges...

PT-2023-9747 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the BPF Berkeley Packet Filter program in the Linux kernel. When the bpf throw kfunc is called, it triggers dead code elimination in an unprecedented way, causi...

CLSA-2023-1693426883 kernel: Fix of 20 CVEs

netfilter: nftsetpipapo: fix improper element removal CVE-2023-4004 - net: tun: fix bugs for oversize packet when napi frags enabled CVE-2023-3812 - net/sched: clsfw: Fix improper refcount update leads to use-after-free CVE-2023-3776 - net/sched: schqfq: account for stab overhead in qfqenqueue...

Linux Kernel BPF usdt.c parse_usdt_arg memory leak

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DEBIAN-CVE-2023-0160

A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system...

CVE-2023-0160

A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system...

Important: kernel

Issue Overview: A flaw was found in the x86 KVM subsystem in kvmstealtimesetpreempted in arch/x86/kvm/x86.c in the Linux kernel. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVMVCPUPREEMPTED situations. CVE-2022-39189 In the Linux...

New Stealthy Variant of Linux Backdoor BPFDoor Emerges from the Shadows

A previously undocumented and mostly undetected variant of a Linux backdoor called BPFDoor has been spotted in the wild, cybersecurity firm Deep Instinct said in a technical report published this week. "BPFDoor retains its reputation as an extremely stealthy and difficult-to-detect malware with...

kernel: bpf: Fix potential array overflow in bpf_trampoline_get_progs()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpftrampolinegetprogs The cnt value in the 'cnt = BPFMAXTRAMPPROGS' check does not include BPFTRAMPMODIFYRETURN bpf programs, so the number of the attached BPFTRAMPMODIFYRETURN bpf programs in...

kernel: bpf: Fix combination of jit blinding and pointers to bpf subprogs.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. The combination of jit blinding and pointers to bpf subprogs causes: 36.989548 BUG: unable to handle page fault for address: 0000000100000001 36.990342 PF:...

kernel: bpf, arm64: Fixed a BTI error on returning to patched function

A control-flow integrity flaw was found in the Linux kernel on the arm64 architecture within the extended Berkeley Packet Filter trampoline return path. Returning to a patched function with an instruction sequence that fails the branch-target security check can trigger an exception and panic. A...

kernel: bpf: prevent leak of lsm program after failed attach

A reference count leak was found in the BPF subsystem. When attaching a BPF LSM program to a cgroup fails validation, the program's reference count is not decremented, causing the BPF program to remain loaded indefinitely...

PT-2023-3564

Name of the Vulnerable Software and Affected Versions kernel-image-rpi-un version 6.1.77-alt1 Linux Kernel versions =5.4 kernel-image-std-def version 5.10.179-alt1 Linux Kernel 5.3.18-150200 24 166 Description The Linux kernel is susceptible to a vulnerability stemming from an incorrect verifier...

PT-2025-53163

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0 4 Description The Linux kernel contained a flaw related to the handling of recursion checks within the Berkeley Packet Filter BPF subsystem. Specifically, the preempt count sub,add functions were called aft...

SUSE CVE-2017-9150

The docheck function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the allowptrleaks value available for restricting the output of the printbpfinsn function, which allows local users to obtain sensitive address information via crafted bpf system calls...

SUSE CVE-2021-3489

The eBPF RINGBUF bpfringbufreserve function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee "bp...

SUSE CVE-2021-4001

A race condition was found in the Linux kernel's ebpf verifier between bpfmapupdateelem and bpfmapfreeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege capsysadmin or capbpf can modify the frozen mapped address space. This flaw affects kernel...