CVE-2023-52527

CVE-2023-52527 involves the Linux kernel IPv4/IPv6 path: the handling of transhdrlen in __ip{,6}_append_data() could inflate the length when a packet is only partially filled (e.g., after MSG_MORE), risking duplicate transport header accounting. The issue can arise when splicing into an L2TP sock...

CVE-2023-52527 ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()

In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in ip,6appenddata Including the transhdrlen in length is a problem when the packet is partially filled e.g. something like sendMSGMORE happened previously when appending to an IPv4 or IPv6...

CVE-2023-52527 ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()

In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in ip,6appenddata Including the transhdrlen in length is a problem when the packet is partially filled e.g. something like sendMSGMORE happened previously when appending to an IPv4 or IPv6...

CVE-2023-52527

In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in ip,6appenddata Including the transhdrlen in length is a problem when the packet is partially filled e.g. something like sendMSGMORE happened previously when appending to an IPv4 or IPv6...

CVE-2023-52523

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Reject skmsg egress redirects to non-TCP sockets With a SOCKMAP/SOCKHASH map and an skmsg program user can steer messages sent from one TCP socket s1 to actually egress from another TCP socket s2: tcpbpfsendmsgs1 //...

CVE-2023-52523 bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Reject skmsg egress redirects to non-TCP sockets With a SOCKMAP/SOCKHASH map and an skmsg program user can steer messages sent from one TCP socket s1 to actually egress from another TCP socket s2: tcpbpfsendmsgs1 //...

CVE-2023-52523 bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Reject skmsg egress redirects to non-TCP sockets With a SOCKMAP/SOCKHASH map and an skmsg program user can steer messages sent from one TCP socket s1 to actually egress from another TCP socket s2: tcpbpfsendmsgs1 //...

CVE-2023-52513 RDMA/siw: Fix connection failure handling

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix connection failure handling In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the co...

CVE-2023-52513

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix connection failure handling In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the co...

CVE-2023-52502 net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()

In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfcllcpsockget and nfcllcpsockgetsn Sili Luo reported a race in nfcllcpsockget, leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the...

CVE-2023-52502 net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()

In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfcllcpsockget and nfcllcpsockgetsn Sili Luo reported a race in nfcllcpsockget, leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the...

SUSE CVE-2021-47038

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: avoid deadlock between hcidev-lock and socket lock Commit eab2404ba798 "Bluetooth: Add BTPHY socket option" added a dependency between socket lock and hcidev-lock that could lead to deadlock. It turns out that...

SUSE CVE-2021-46973

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Avoid potential use after free in MHI send It is possible that the MHI ulcallback will be invoked immediately following the queueing of the skb for transmission, leading to the callback decrementing the refcount of the...

SUSE CVE-2021-47013

In the Linux kernel, the following vulnerability has been resolved: net:emac/emac-mac: Fix a use after free in emacmactxbufsend In emacmactxbufsend, it calls emactxfilltpd..,skb,... If some error happens in emactxfilltpd, the skb will be freed via devkfreeskbskb in error branch of emactxfilltpd...

SUSE CVE-2021-47024

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: free queued packets when closing socket As reported by syzbot 1, there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b "vsock/virtio: free packets during the socket...

SUSE CVE-2021-47032

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix tx skb dma unmap The first pointer in the txp needs to be unmapped as well, otherwise it will leak DMA mapping entries...

SUSE CVE-2021-47033

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7615: fix tx skb dma unmap The first pointer in the txp needs to be unmapped as well, otherwise it will leak DMA mapping entries...

CVE-2021-47068 net/nfc: fix use-after-free llcp_sock_bind/connect

In the Linux kernel, the following vulnerability has been resolved: net/nfc: fix use-after-free llcpsockbind/connect Commits 8a4cd82d "nfc: fix refcount leak in llcpsockconnect" and c33b1cc62 "nfc: fix refcount leak in llcpsockbind" fixed a refcount leak bug in bind/connect but introduced a...

CVE-2021-47024

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: free queued packets when closing socket As reported by syzbot 1, there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b "vsock/virtio: free packets during the socket...

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 code execution vulnerability exists in the Linux kernel due to a "use after release" flaw in llcpsockbind/connect. An attacker could exploit this vulnerability to execute...