Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the presence of data contention in bpfjitlimit, which could lead to a load tear...

PT-2025-25896 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the fixed version Description: A kernel BUG has been resolved in the Linux kernel, specifically in the bpf and cgroup components. The issue was reported by Syzkaller and occurs when a kernel BUG is triggered due...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from bpf not marking ARGCONSTALLOCSIZEORZERO precision, which could result in a status error...

PT-2025-25901

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability has been identified in the Linux kernel where the bpf prog test run skb function runs a bpf program that redirects empty skbs, causing the fq codel drop function to attem...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2024-28956: x86/ibt: Keep IBT disabled during alternative patching bsc1242006. CVE-2024-35840: mptcp: use OPTIONMPTCPMPJSYNACK in subflowfinishconnect bsc122459...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: HID: bpf: abort dispatch if the device is destroyed The current implementation of HID’s bpf function assumes that no output reports or requests will occur after the hidbpfdestroydevice function is called. This leads to a bug wher...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schedext: bpfiterscxdsqnew should always initialize the iterator. BPF programs may call next and destroy on BPF iterators even after new returns an error value e.g., the bpfforeach macro ignores error returns from new...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed the overloading of the meaning of MEMUNINIT Lonial reported an issue with the BPF verifier, where the checkmemsizereg function contains the following code: c if !tnumisconstreg-varoff / For unprivileged variable...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed a deadlock between rcutaskstrace and eventmutex. Fixed the following deadlock: - CPU A: - freeevent - perfkprobedestroy - mutexlock&eventmutex - perfTraceEventUnreg - synchronizercutaskstrace There are several paths...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nfp: bpf: Added a check for the return value of nfpappctrlmsgalloc. Added a check on the return value of nfpappctrlmsgalloc in nfpbpfcmsgalloc to prevent null pointer dereferencing...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Tracking the changespktdata property for global functions When processing calls to certain helpers, the verifier invalidates all packet pointers in the current state. For example, consider the following program: c...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Prevent tail calls between programs attached to different hooks Programs progs can be attached to kernel functions, and these attached functions may take different parameters or return different return values. If a program...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fixed the trampoline for BPFTRAMPFCALLORIG. When BPFTRAMPFCALLORIG is set, the trampoline calls the bpftrampenter and bpftrampexit functions, passing struct bpftrampimage im as an argument in R0. The trampoline...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: bpflocalstorage: Always use bpfmemalloc in PREEMPTRT. In PREEMPTRT, kmallocGFPATOMIC is still not safe in non-preemptible contexts. Therefore, bpfmemalloc must be used in PREEMPTRT. This patch aims to enforce the use of...

Astra Linux – Vulnerability in libbpf

The vulnerability in the src/libbpf.c component of the BPF loader library in Libbpf is related to pointer dereferencing errors. Exploiting this vulnerability allows an attacker to cause a service failure...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: BPF: Avoid holding the freezemutex during the mmap operation. We use the map-freezemutex to prevent race conditions between the mapfreeze function and memory mapping operations with writable permissions. The way we currently hand...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: BPF: Cancel the running BPF timer through kworker for PREEMPTRT During the update process, when overwriting an element in a pre-allocated htab, the freeing of oldelement is protected by the bucket lock. The reason why the bucket...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: The registration of structops that uses the module ptr was rejected, and the module btfid is missing. There is a UAF report in bpfstructops when CONFIGMODULES=n. Specifically, the report relates to tcpcongestionops, which ha...

Astra Linux – Vulnerability in libbpf

The vulnerability of the BPF Libbpf loader library is related to pointer dereferencing errors. Exploiting this vulnerability allows an attacker to cause a service failure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schedext: Validates prevcpu in scxbpfselectcpudfl. If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl, it may cause a kernel crash. To prevent this, prevcpu is validated in...