CVE-2025-21763

Summary of CVE-2025-21763 : In the Linux kernel, __neigh_notify() can be invoked without RTNL or RCU protection, creating a potential use-after-free (UAF) scenario in neighbour handling. The mitigation is to apply RCU protection to neighbour notifications to prevent UAF. Connected advisories corr...

CVE-2025-21763 neighbour: use RCU protection in __neigh_notify()

In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in neighnotify neighnotify can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF...

CVE-2025-21764

The CVE-2025-21764 issue affects the Linux kernel: ndisc_alloc_skb() could be invoked without RTNL or RCU held, enabling a potential use-after-free. The published fixes add RCU protection to ndisc_alloc_skb() to prevent UAF. Affected advisories (e.g., kernel security updates in Astra Linux, ALAS/...

CVE-2025-21762 arp: use RCU protection in arp_xmit()

In the Linux kernel, the following vulnerability has been resolved: arp: use RCU protection in arpxmit arpxmit can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF...

CVE-2025-21761 openvswitch: use RCU protection in ovs_vport_cmd_fill_info()

In the Linux kernel, the following vulnerability has 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...

CVE-2025-21761

In the Linux kernel, the following vulnerability has 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...

CVE-2025-21762

In the Linux kernel, the following vulnerability has been resolved: arp: use RCU protection in arpxmit arpxmit can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF...

CVE-2025-21760 ndisc: extend RCU protection in ndisc_send_skb()

In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndiscsendskb ndiscsendskb can be called without RTNL or RCU held. Acquire rcureadlock earlier, so that we can use devnetrcu and avoid a potential UAF...

CVE-2025-21759 ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

CVE-2025-21759

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

CVE-2025-21759 ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

CVE-2024-49570 drm/xe/tracing: Fix a potential TP_printk UAF

In the Linux kernel, the following vulnerability has been resolved: drm/xe/tracing: Fix a potential TPprintk UAF The commit afd2627f727b "tracing: Check "%s" dereference via the field and not the TPprintk format" exposes potential UAFs in the xebomove trace event. Fix those by avoiding...

CVE-2024-49570 drm/xe/tracing: Fix a potential TP_printk UAF

In the Linux kernel, the following vulnerability has been resolved: drm/xe/tracing: Fix a potential TPprintk UAF The commit afd2627f727b "tracing: Check "%s" dereference via the field and not the TPprintk format" exposes potential UAFs in the xebomove trace event. Fix those by avoiding...

CVE-2025-21731

In the Linux kernel, the following vulnerability has been resolved: nbd: don't allow reconnect after disconnect Following process can cause nbdconfig UAF: 1 grab nbdconfig temporarily; 2 nbdgenldisconnect flush all recvwork and release the initial reference: nbdgenldisconnect nbddisconnectandput...

CVE-2025-21715

In the Linux kernel, the following vulnerability has been resolved: net: davicom: fix UAF in dm9000drvremove dm is netdev private data and it cannot be used after freenetdev call. Using dm after freenetdev can cause UAF bug. Fix it by moving freenetdev at the end of the function. This is similar ...

CVE-2025-21731 nbd: don't allow reconnect after disconnect

In the Linux kernel, the following vulnerability has been resolved: nbd: don't allow reconnect after disconnect Following process can cause nbdconfig UAF: 1 grab nbdconfig temporarily; 2 nbdgenldisconnect flush all recvwork and release the initial reference: nbdgenldisconnect nbddisconnectandput...

CVE-2025-21731

In the Linux kernel, the following vulnerability has been resolved: nbd: don't allow reconnect after disconnect Following process can cause nbdconfig UAF: 1 grab nbdconfig temporarily; 2 nbdgenldisconnect flush all recvwork and release the initial reference: nbdgenldisconnect nbddisconnectandput...

CVE-2025-21727

CVE-2025-21727 : Linux kernel issue in padata_reorder causing a use-after-free in padata_find_next under certain race conditions. The provided connected documents confirm a KASAN UAF scenario when a parallel padata_reorder/serial flow frees Pd too early and later calls padata_find_next. The remed...

CVE-2025-21727

In the Linux kernel, the following vulnerability has been resolved: padata: fix UAF in padatareorder A bug was found when run 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 Comm:...

CVE-2025-21727 padata: fix UAF in padata_reorder

In the Linux kernel, the following vulnerability has been resolved: padata: fix UAF in padatareorder A bug was found when run 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 Comm:...