CVE-2021-47396

CVE-2021-47396 is a Linux kernel issue affecting mac80211-hwsim beacon timing. The root cause is improper late hrtimer handling: when a timer fires late, the code re-arms for the next deadline, which can already be in the past, causing repeated misalignment and potential stalls. The fix, as descr...

CVE-2021-47271 usb: cdnsp: Fix deadlock issue in cdnsp_thread_irq_handler

In the Linux kernel, the following vulnerability has been resolved: usb: cdnsp: Fix deadlock issue in cdnspthreadirqhandler Patch fixes the following critical issue caused by deadlock which has been detected during testing NCM class: smp: csd: Detected non-responsive CSD lock 1 on CPU0 smp: csd:...

CVE-2021-47268 usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port A pending hrtimer may expire after the kthreadworker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2...

CVE-2021-47268

CVE-2021-47268: Unity/Linux kernel advisory describes a fix for usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port, addressing a pending hrtimer that may expire after tcpm port destruction. Root cause is a pending hrtimer in tcpm that could fire during module unload,...

CVE-2021-47268 usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port A pending hrtimer may expire after the kthreadworker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2...

CVE-2021-47268

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port A pending hrtimer may expire after the kthreadworker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2...

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 mac80211-hwsim module that delays the processing of hrtimer...

SUSE CVE-2024-26703

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Move hrtimerinit to timerlatfd open Currently, the timerlat's hrtimer is initialized at the first read of timerlatfd, and destroyed at close. It works, but it causes an error if the user program open and close t...

CVE-2024-26803

In the Linux kernel, the following vulnerability has been resolved: net: veth: clear GRO when clearing XDP even when down veth sets NETIFFGRO automatically when XDP is enabled, because both features use the same NAPI machinery. The logic to clear NETIFFGRO sits in vethdisablexdp which is called...

CVE-2024-26803

In the Linux kernel, the following vulnerability has been resolved: net: veth: clear GRO when clearing XDP even when down veth sets NETIFFGRO automatically when XDP is enabled, because both features use the same NAPI machinery. The logic to clear NETIFFGRO sits in vethdisablexdp which is called...

CVE-2024-26737 bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix racing between bpftimercancelandfree and bpftimercancel The following race is possible between bpftimercancelandfree and bpftimercancel. It will lead a UAF on the timer-timer. bpftimercancel; spinlock; t = timer-time;...

CVE-2024-26737

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix racing between bpftimercancelandfree and bpftimercancel The following race is possible between bpftimercancelandfree and bpftimercancel. It will lead a UAF on the timer-timer. bpftimercancel; spinlock; t = timer-time;...

DEBIAN-CVE-2024-26703

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Move hrtimerinit to timerlatfd open Currently, the timerlat's hrtimer is initialized at the first read of timerlatfd, and destroyed at close. It works, but it causes an error if the user program open and close t...

UBUNTU-CVE-2024-26703

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Move hrtimerinit to timerlatfd open Currently, the timerlat's hrtimer is initialized at the first read of timerlatfd, and destroyed at close. It works, but it causes an error if the user program open and close t...

CVE-2024-26703 tracing/timerlat: Move hrtimer_init to timerlat_fd open()

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Move hrtimerinit to timerlatfd open Currently, the timerlat's hrtimer is initialized at the first read of timerlatfd, and destroyed at close. It works, but it causes an error if the user program open and close t...

CVE-2024-26703

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Move hrtimerinit to timerlatfd open Currently, the timerlat's hrtimer is initialized at the first read of timerlatfd, and destroyed at close. It works, but it causes an error if the user program open and close t...

kernel: net/sched: sch_taprio: fix possible use-after-free

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

Important: kernel

Issue Overview: A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled?address, potentially leading to information disclosure. CVE-2023-20569 A use-after-free...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6249-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6249-1 advisory. Ruihan Li discovered that the memory management subsystem in the Linux kernel contained a race condition when accessing VMAs in certain conditions, leadi...

OESA-2023-1424 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A use-after-free vulnerability in the Linux Kernel iouring subsystem can be exploited to achieve local privilege escalation. Racing a iouring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend...