UBUNTU-CVE-2025-21664

In the Linux kernel, the following vulnerability has been resolved: dm thin: make getfirstthin use rcu-safe list first function The documentation in rculist.h explains the absence of listemptyrcu and cautions programmers against relying on a listempty - listfirst sequence in RCU safe code. This i...

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 getfirstthin function in the dm thin module not properly using RCU-safe list operations. This could resu...

DEBIAN-CVE-2025-21655

In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...

UBUNTU-CVE-2025-21655

In the Linux kernel, the following vulnerability has been resolved: iouring/eventfd: ensure ioeventfdsignal defers another RCU period ioeventfddosignal is invoked from an RCU callback, but when dropping the reference to the ioevfd, it calls ioeventfdfree directly if the refcount drops to zero. Th...

PT-2025-9007

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel's hrtimers infrastructure allows wakeups to be performed by an outgoing CPU after the CPUHP AP HRTIMERS DYING stage, potentially resulting in bandwidt...

SUSE CVE-2024-57875

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

DEBIAN-CVE-2024-57875

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

AZL-68570 CVE-2024-57875 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

SUSE CVE-2024-56654

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix using rcureadunlock while iterating The usage of rcureadunlock while inside listforeachentryrcu is not safe since for the most part entries fetched this way shall be treated as rcudereference: Note that t...

SUSE CVE-2024-56675

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpfprog/attachment RCU flavors Uprobes always use bpfprogrunarrayuprobe under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF...

The vulnerability of the rcu_nocb_bypass_lock function in the Linux operating system’s Read-Copy-Update (RCU) synchronization mechanism allows a attacker to trigger a service failure.

The vulnerability of the rcunocbbypasslock function in the Linux operating system’s Read-Copy-Update RCU synchronization mechanism is related to the lack of memory release after the effective lifespan of the function. Exploiting this vulnerability can allow an attacker to cause a service failure...

PT-2025-49796

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s nvmet-fc subsystem where shutting down a port via the configfs interface can lead to a double scheduling of association deletion. This occurs because...

PT-2025-36268

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The ppp fill forward path function contained race conditions. Specifically, the ppp-channels list could change between checks for emptiness and accessing its first entry, potentially...

SUSE CVE-2024-56743

In the Linux kernel, the following vulnerability has been resolved: nfscommon: must not hold RCU while calling nfsdfileputlocal Move holding the RCU from nfstonfsdfileputlocal to nfstonfsdnetput. It is the call to nfsto-nfsdservput that requires the RCU anyway the puts for nfsdfile and netns were...

CVE-2024-56743 nfs_common: must not hold RCU while calling nfsd_file_put_local

In the Linux kernel, the following vulnerability has been resolved: nfscommon: must not hold RCU while calling nfsdfileputlocal Move holding the RCU from nfstonfsdfileputlocal to nfstonfsdnetput. It is the call to nfsto-nfsdservput that requires the RCU anyway the puts for nfsdfile and netns were...

CVE-2024-56743 nfs_common: must not hold RCU while calling nfsd_file_put_local

In the Linux kernel, the following vulnerability has been resolved: nfscommon: must not hold RCU while calling nfsdfileputlocal Move holding the RCU from nfstonfsdfileputlocal to nfstonfsdnetput. It is the call to nfsto-nfsdservput that requires the RCU anyway the puts for nfsdfile and netns were...

PT-2024-37054 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the Linux kernel, where a vulnerability has been resolved. The problem occurs when the nfs common holds the RCU while calling nfsd file put local. To fix this,...

SUSE CVE-2024-53216

In the Linux kernel, the following vulnerability has been resolved: nfsd: release svcexpkey/svcexport with rcuwork The last reference for cachehead can be reduced to zero in cshow and eshowusing rcureadlock and rcureadunlock. Consequently, svcexportput and expkeyput will be invoked, leading to tw...

SUSE CVE-2024-56547

In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix missed RCU barrier on deoffloading Currently, running rcutorture test with torturetype=rcu fwdprogress=8 nbarriercbs=8 nocbsnthreads=8 nocbstoggle=100 onoffinterval=60 testboost=2, will trigger the following warning...

AZL-54733 CVE-2024-56675 affecting package kernel for versions less than 6.6.76.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpfprog/attachment RCU flavors Uprobes always use bpfprogrunarrayuprobe under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF...