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

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

CVE-2023-52523 – Linux kernel vulnerability (bpf, sockmap): A BPF sk_msg redirect can target a non-TCP exit socket (via SOCKMAP/SOCKHASH), which previously could downcast to a tcp_sock and crash. The issue arose after enabling redirects to non-TCP sockets, breaking assumptions that the egress soc...

CVE-2023-52523: NULL Pointer Dereference

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 //...

kernel: bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Check for any of tcpbpfprots when cloning a listener A listening socket linked to a sockmap has its skprot overridden. It points to one of the struct proto variants in tcpbpfprots. The variant depends on the socket'...

kernel: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data

A reference-count flaw was found in the Linux kernel Berkeley Packet Filter BPF sockmap implementation. When processing messages with remaining data, the same Transmission Control Protocol TCP socket reference could be released more than once. A local user running BPF sockmap programs could use...

Medium: kernel

Issue Overview: A flaw in the kernel Xen event handler can cause a deadlock with Xen console handling in unprivileged Xen guests. CVE-2023-34324 In the Linux kernel, the following vulnerability has been resolved: usb: hub: Guard against accesses to uninitialized BOS descriptors CVE-2023-52477 In...

PT-2023-9465 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The vulnerability is related to the Linux kernel's sockmap component, where a hard-coded assumption in the call-chain expects the egress socket to be a TCP socket. However, with the...

kernel: bpf, sockmap: Fix more uncharged while msg has more_data

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix more uncharged while msg has moredata In tcpbpfsendverdict, if msg has more data after tcpbpfsendmsgredir: tcpbpfsendverdict tosend = msg-sg.size //msg-sg.size = 22220 case SKREDIRECT: skmsgreturn //uncharged...

kernel: skmsg: Fix wrong last sg check in sk_msg_recvmsg()

In the Linux kernel, the following vulnerability has been resolved: skmsg: Fix wrong last sg check in skmsgrecvmsg Fix one kernel NULL pointer dereference as below: 224.462334 Call Trace: 224.462394 tcpbpfrecvmsg+0xd3/0x380 224.462441 ? sockhasperm+0x78/0xa0 224.462463 tcpbpfrecvmsg+0x12e/0x220...

kernel: bpf, sockmap: Fix double uncharge the mem of sk_msg

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix double uncharge the mem of skmsg If tcpbpfsendmsg is running during a tear down operation, psock may be freed. tcpbpfsendmsg tcpbpfsendverdict skmsgreturn tcpbpfsendmsgredir unlikely!psock skmsgfree The mem of m...

PT-2025-8135

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak issue has been identified in the Linux kernel, specifically in the bpf and sockmap components. The problem occurs when the tcp bpf sendmsg function is running during a...

GSD-2023-1002356 bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself

bpf, sockmap: Don't let sockmapclose,destroy,unhash call itself This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.95 by commit...

PT-2023-35431 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to 5.15.95 Description: The issue is related to the bpf and sockmap components. It prevents sock map close,destroy,unhash from calling itself. The actual impact and attack plausibility have not yet been proven...

GSD-2023-1002045 bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener

bpf, sockmap: Check for any of tcpbpfprots when cloning a listener This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.93 by commit...

PT-2023-34961 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.1.11 Description: The issue is related to the bpf and sockmap components in the Linux Kernel. It involves a check for any of tcp bpf prots when cloning a listener. The actual impact and attack plausibility ha...

PT-2025-13332

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been identified, related to the bpf and sockmap functionality. When a listening socket is linked to a sockmap, its sk prot is overridden to point ...

GSD-2023-1001453 bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data

bpf, sockmap: Fix repeated calls to sockput when msg has moredata This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.163 by commit...

GSD-2023-1001448 bpf, sockmap: fix race in sock_map_free()

bpf, sockmap: fix race in sockmapfree This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.163 by commit...