kernel: tracing: Restructure trace_clock_global() to never block

In the Linux kernel, the following vulnerability has been resolved: tracing: Restructure traceclockglobal to never block It was reported that a fix to the ring buffer recursion detection would cause a hung machine when performing suspend / resume testing. The following backtrace was extracted fro...

kernel: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING

A vulnerability was found in the Linux kernel's md/raid5 implementation within the raid5d function. This flaw can cause a deadlock when handling I/O operations due to a conflict between the reconfigmutex and the MDSBCHANGEPENDING flag, leading to excessive CPU usage and denial of service...

kernel: net/sched: act_mirred: use the backlog for mirred ingress

A potential deadlock flaw was found in net/sched/actmirred.c in the Linux kernel. This may lead to compromised Availability...

kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling

A flaw was found in the Linux kernel. A frame buffer can be freed while still in use in a specific situation in drivers/gpu/drm/drmplane.c. This issue may compromise the availability...

kernel: tracing: Restructure trace_clock_global() to never block

In the Linux kernel, the following vulnerability has been resolved: tracing: Restructure traceclockglobal to never block It was reported that a fix to the ring buffer recursion detection would cause a hung machine when performing suspend / resume testing. The following backtrace was extracted fro...

kernel: net/sched: Fix mirred deadlock on device recursion

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix mirred deadlock on device recursion The Linux kernel CVE team has assigned CVE-2024-27010 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050148-CVE-2024-27010-5a68@gregkh/T...

SUSE CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

DEBIAN-CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

AZL-47453 CVE-2024-42239 affecting package kernel for versions less than 6.6.43.1-7

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

AZL-47604 CVE-2024-42239 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

UBUNTU-CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239

CVE-2024-42239 affects the Linux kernel BPF timer cancellation path. The fix adds an atomic counter (cancelling) in bpf_hrtimer to track in-flight cancellation requests and prevents deadlocks when two callbacks attempt to cancel each other in parallel. The patch ensures that if a cancellation is ...

CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as...

kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling

A flaw was found in the Linux kernel. A frame buffer can be freed while still in use in a specific situation in drivers/gpu/drm/drmplane.c. This issue may compromise the availability...

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 Linux kernel that originates in the bpf module during a bpftimercancel call, which may result in a deadlock if the callback is being canceled...