CVE-2023-53499

The CVE-2023-53499 vulnerability stems from virtio_net XDP initialization handling in virtnet_open(): an error during rq XDP init could leave previously initialized XDP and NAPI enabled, causing leaks during error unwinding. The fix rolls back prior rq initialization on error, and extracts/uses h...

CVE-2023-53499 virtio_net: Fix error unwinding of XDP initialization

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix error unwinding of XDP initialization When initializing XDP in virtnetopen, some rq xdp initialization may hit an error causing net device open failed. However, previous rqs have already initialized XDP and enabled...

CVE-2023-53462 hsr: Fix uninit-value access in fill_frame_info()

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in fillframeinfo Syzbot reports the following uninit-value access problem. ===================================================== BUG: KMSAN: uninit-value in fillframeinfo net/hsr/hsrforward.c:601 inli...

CVE-2022-50441 net/mlx5: Lag, fix failure to cancel delayed bond work

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Lag, fix failure to cancel delayed bond work Commit 0d4e8ed139d8 "net/mlx5: Lag, avoid lockdep warnings" accidentally removed a call to cancel delayed bond work thus it may cause queued delay to expire and fall on an...

CVE-2022-50441

CVE-2022-50441 details (Linux kernel, net/mlx5): A bug introduced by commit 0d4e8ed139d8 removed a call to cancel_delayed_work_sync(), which could cause a queued delay to expire on an already destroyed workqueue, potentially leading to a kernel NULL pointer dereference. The fix restores cancel_de...

AZL-68040 CVE-2025-39905 affecting package kernel 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: net: phylink: add lock for serializing concurrent pl-phydev writes with resolver Currently phylinkresolve protects itself against concurrent phylinkbringupphy or phylinkdisconnectphy calls which modify pl-phydev by relying on...

CVE-2025-39905

In the Linux kernel, the following vulnerability has been resolved: net: phylink: add lock for serializing concurrent pl-phydev writes with resolver Currently phylinkresolve protects itself against concurrent phylinkbringupphy or phylinkdisconnectphy calls which modify pl-phydev by relying on...

CVE-2025-39908

In the Linux kernel, the following vulnerability has been resolved: net: devioctl: take ops lock in hwtstamp lower paths ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations. Kernel log: WARNING: CPU: 13...

CVE-2025-39900

In the Linux kernel, the following vulnerability has been resolved: netsched: genestimator: fix esttimer vs CONFIGPREEMPTRT=y syzbot reported a WARNING in esttimer 1 Problem here is that with CONFIGPREEMPTRT=y, timer callbacks can be preempted. Adopt preemptdisablenested/preemptenablenested to fi...

UBUNTU-CVE-2025-39925

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

CVE-2025-39925 can: j1939: implement NETDEV_UNREGISTER notification handler

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEVUNREGISTER notification handler syzbot is reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not have NETDEVUNREGISTER notification handler...

CVE-2025-39908 net: dev_ioctl: take ops lock in hwtstamp lower paths

In the Linux kernel, the following vulnerability has been resolved: net: devioctl: take ops lock in hwtstamp lower paths ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations. Kernel log: WARNING: CPU: 13...

CVE-2025-39900 net_sched: gen_estimator: fix est_timer() vs CONFIG_PREEMPT_RT=y

In the Linux kernel, the following vulnerability has been resolved: netsched: genestimator: fix esttimer vs CONFIGPREEMPTRT=y syzbot reported a WARNING in esttimer 1 Problem here is that with CONFIGPREEMPTRT=y, timer callbacks can be preempted. Adopt preemptdisablenested/preemptenablenested to fi...

kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix race condition on qfqaggregate A race condition can occur when 'agg' is modified in qfqchangeagg called during qfqenqueue while other threads access it concurrently. For example, qfqdumpclass may trigger a...

PT-2025-40082

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to hardware timestamping hwtstamp within network device operations. Specifically, the issue involves failing to properly acquire the operations...

PT-2025-40089

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a potential deadlock risk within the networking subsystem related to the handling of PHY device configuration. Specifically, a circular locking dependency exist...

Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1208)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1208 advisory. In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer dereference in l3mdevl3rcv CVE-2025-22103 In the Linux kernel, the following vulnerability has been...

kernel: nfsd: don't ignore the return code of svc_proc_register()

In the Linux kernel, the following vulnerability has been resolved: nfsd: don't ignore the return code of svcprocregister Currently, nfsdprocstatinit ignores the return value of svcprocregister. If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later. Fix...

Important: kernel-livepatch-6.12.40-64.114

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix backlog accounting in qdiscdequeueinternal CVE-2025-39677 Affected Packages: kernel-livepatch-6.12.40-64.114 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

ALSA-2025:16919 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: don't ignore the return code of svcprocregister CVE-2025-22026 kernel: netsched: hfsc: Fix a UAF vulnerability in class handling CVE-2025-37797 kernel: firmware: armscpi: Ensure...