UBUNTU-CVE-2025-38017

In the Linux kernel, the following vulnerability has been resolved: fs/eventpoll: fix endless busy loop after timeout has expired After commit 0a65bc27bd64 "eventpoll: Set epoll timeout if it's in the future", the following program would immediately enter a busy loop in the kernel: int main int e...

CVE-2025-38028 NFS/localio: Fix a race in nfs_local_open_fh()

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: Fix a race in nfslocalopenfh Once the clp-cluuid.lock has been dropped, another CPU could come in and free the struct nfsdfile that was just added. To prevent that from happening, take the RCU read lock before droppi...

CVE-2025-38028 NFS/localio: Fix a race in nfs_local_open_fh()

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: Fix a race in nfslocalopenfh Once the clp-cluuid.lock has been dropped, another CPU could come in and free the struct nfsdfile that was just added. To prevent that from happening, take the RCU read lock before droppi...

CVE-2025-38017 fs/eventpoll: fix endless busy loop after timeout has expired

In the Linux kernel, the following vulnerability has been resolved: fs/eventpoll: fix endless busy loop after timeout has expired After commit 0a65bc27bd64 "eventpoll: Set epoll timeout if it's in the future", the following program would immediately enter a busy loop in the kernel: int main int e...

PT-2025-25934 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.19.0+ Description: A vulnerability in the Linux kernel has been identified, where the assumption in disable kprobe is incorrect, leading to an attempt to disarm an already disarmed kprobe and triggering a WARN...

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 inadequate RCU protection and could lead to read after release...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net: mctp: Set SOCKRCUFREE The Bind lookup operation is executed under RCU; therefore, ensure that a socket does not disappear during the middle of a lookup operation...

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 in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fixed suspicious RCU usage The commit “iommu/vt-d: Allocate DMAR fault interrupts locally” moved the call to enabledrhdfaulthandling to a code path that does not hold any lock while traversing the drhd list. This issu...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: - ndisc: RCU protection was added to ndiscallocskb. - ndiscallocskb can be called without holding RTNL or RCU. RCU protection was added to avoid potential Use-after-Free UAF vulnerabilities...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: batman-adv: The unmanaged ELP worker is removed. The ELP worker needs to calculate new metric values for all “reachable” neighbors via an interface. Some of the metric calculation functions require locks, which may need to be...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: xfrm: State: fixed an out-of-bounds read during lookup. Lookup and resizing can operate in parallel. The xfrmstatehashgeneration seqlock ensures a retry mechanism, but the hash functions may encounter a hmask value that is too...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: padata: fixed UAF in padatareorder A bug was found when running the ltp test: BUG: KASAN: slab-use-after-free in padatafindnext+0x29/0x1a0 Read of size 4 at addr ffff88bbfe003524 by task kworker/u113:2/3039206 CPU: 0 PID: 3039206...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: mcast: added RCU protection to mldnewpack The mldnewpack function can be called without holding RTNL or RCU. It should be noted that we can no longer use sockallocsendskb, because ipv6.igmpsk uses GFPKERNEL allocations,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: openvswitch: Use RCU protection in ovsvportcmdfillinfo. ovsvportcmdfillinfo can be called without RTNL or RCU. Use RCU protection and devnetrcu to avoid potential UAF Use-After-Free errors...

Astra Linux – Vulnerability in Linux 6.1

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 warns programmers against relying on a sequence of listempty - listfirst in RCU-safe code. This ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: The issue involves bcm: adding missing rcu read protection for procfs content. When the procfs content is generated for a bcmop that is about to be removed, the procfs output might display unreliable data UAF. Since the removal o...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: perf/core: Added RCU read lock protection to perfiteratectx The perfiteratectx function performs RCU list traversal, but currently lacks RCU read lock protection. This causes lockdep warnings when running perf probes with unshare...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mptcp: fixed the “scheduling while atomic” issue in mptcppmnl.AppendNewLocalAddr. If multiple connection requests attempt to create an implicit mptcp endpoint simultaneously, more than one caller may end up using...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ipv4: Use RCU protection in iprtupdatepmtu. iprtupdatepmtu must use RCU protection to ensure that the network structure it reads does not disappear...