CVE-2024-26950

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer-device being dereferenced. It's actually easier and faster performance-wise to instead get the device from...

CVE-2024-26950 wireguard: netlink: access device through ctx instead of peer

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer-device being dereferenced. It's actually easier and faster performance-wise to instead get the device from...

CVE-2024-26950: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer-device being dereferenced. It's actually easier and faster performance-wise to instead get the device from...

Linux Kernel Security Vulnerabilities

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 stems from the presence of RTNL-related deadlocks during module removal...

CVE-2024-27017: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: walk over current view on netlink dump The generation mask can be updated while netlink dump is in progress. The pipapo set backend walk iterator cannot rely on it to infer what view of the datastructure ...

CVE-2024-26951: Use After Free

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: check for dangling peer via isdead instead of empty list If all peers are removed via wgpeerremoveall, rather than setting peerlist to empty, the peer is added to a temporary list with a head on the stack of...

kernel: netlink: do not hard code device address lenth in fdb dumps

A kernel information leak vulnerability was found in the netlink FDB Forwarding Database dump functionality in the Linux kernel. The code incorrectly hard-codes ETHALEN 6 bytes for device addresses, but some network devices have shorter addresses e.g., 4 bytes. When dumping FDB entries for such...

kernel: net/mlx5e: Take RTNL lock when needed before calling xdp_set_features()

A locking flaw in the Mellanox mlx5 Ethernet driver allowed calls to xdpsetfeatures without holding the required rtnetlink RTNL lock. A local administrator switching device profiles for example, from an uplink representor to a Network Interface Card profile could trigger notifier paths without...

kernel: vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check

An out-of-bounds read vulnerability was found in the Linux kernel's vDPA virtio Data Path Acceleration netlink interface. The vdpanlpolicy structure was missing the nlapolicy entry for the queue index attribute. Without proper validation, parsing netlink messages with this attribute could result ...

kernel: net: openvswitch: reject negative ifindex

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject negative ifindex Recent changes in net-next commit 759ab1edb56c "net: store netdevs in an xarray" refactored the handling of pre-assigned ifindexes and let syzbot surface a latent problem in ovs. ovs does...

CVE-2022-48644 net/sched: taprio: avoid disabling offload when it was never enabled

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: avoid disabling offload when it was never enabled In an incredibly strange API design decision, qdisc-destroy gets called even if qdisc-init never succeeded, not exclusively since commit 87b60cfacf9f "netsched:...

CVE-2022-48644 net/sched: taprio: avoid disabling offload when it was never enabled

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: avoid disabling offload when it was never enabled In an incredibly strange API design decision, qdisc-destroy gets called even if qdisc-init never succeeded, not exclusively since commit 87b60cfacf9f "netsched:...

CVE-2022-48644

Summary (CVE-2022-48644): A Linux kernel net/sched taprio offload bug could crash the kernel when disabling offload if flags were left at TAPRIO_FLAGS_INVALID after an error path. The code evaluated FULL_OFFLOAD_IS_ENABLED(q->flags) on an invalid flag value (U32_MAX), causing a crash when tapr...

kernel: refcount leak in ctnetlink_create_conntrack()

A memory leak problem was found in ctnetlinkcreateconntrack in net/netfilter/nfconntracknetlink.c in the Linux Kernel. This issue may allow a local attacker with CAPNETADMIN privileges to cause a denial of service DoS attack due to a refcount overflow...

kernel: refcount leak in ctnetlink_create_conntrack()

A memory leak problem was found in ctnetlinkcreateconntrack in net/netfilter/nfconntracknetlink.c in the Linux Kernel. This issue may allow a local attacker with CAPNETADMIN privileges to cause a denial of service DoS attack due to a refcount overflow...

kernel security update

2.6.32-754.53.1.OL6 - net/sched: schqfq: refactor parsing of netlink parameters Orabug: 36517546 - net/sched: schqfq: account for stab overhead in qfqenqueue CVE-2023-3611 Orabug: 36517546 - net/sched: clsfw: Fix improper refcount update leads to use-after-free CVE-2023-3776 Orabug: 36517546 - ne...

SUSE CVE-2024-26849

In the Linux kernel, the following vulnerability has been resolved: netlink: add nla be16/32 types to minlen array BUG: KMSAN: uninit-value in nlavalidaterangeunsigned lib/nlattr.c:222 inline BUG: KMSAN: uninit-value in nlavalidateintrange lib/nlattr.c:336 inline BUG: KMSAN: uninit-value in...

SUSE CVE-2024-26855

In the Linux kernel, the following vulnerability has been resolved: net: ice: Fix potential NULL pointer dereference in icebridgesetlink The function icebridgesetlink may encounter a NULL pointer dereference if nlmsgfindattr returns NULL and brspec is dereferenced subsequently in nlaforeachnested...

CVE-2024-26910

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronizercu add...

CVE-2024-26849

A vulnerability was found in the Linux kernel's netlink component, caused by missing size validations for big-endian integer types NLABE16 and NLABE32. A lack of proper checks means that if a malformed or too-small attribute is passed, it can lead to an out-of-bounds read, potentially causing...