kernel: skbuff: fix coalescing for page_pool fragment recycling

In the Linux kernel, the following vulnerability has been resolved: skbuff: fix coalescing for pagepool fragment recycling Fix a use-after-free when using pagepool with page fragments. We encountered this problem during normal RX in the hns3 driver: 1 Initially we have three descriptors in the RX...

kernel: xsk: Fix race at socket teardown

A flaw was found in the Linux kernel's XDP socket support. A race condition in the XSK socket cleanup can cause a NULL pointer dereference and result in a denial of service...

kernel: use-after-free vulnerability in function sco_sock_sendmsg()

A flaw use-after-free in function scosocksendmsg of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIOREGISTER or other way triggers race condition of the call scoconndel together with the call scosocksendmsg with the expected controllable faulting memory page. A privilege...

kernel: veth: ensure skb entering GRO are not cloned.

In the Linux kernel, the following vulnerability has been resolved: veth: ensure skb entering GRO are not cloned. After commit d3256efd8e8b "veth: allow enabling NAPI even without XDP", if GRO is enabled on a veth device and TSO is disabled on the peer device, TCP skbs will go through the NAPI...

PT-2022-35451 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.10.152 Description: The issue is related to a possible NULL dereference in the skb clone function. This problem was introduced in version v3.17 and is fixed in Linux Kernel version v5.10.152. The actual impac...

PT-2022-35781 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.19.262 Description: The issue is related to the Linux Kernel's rds tcp reset callbacks function, where the sock lock is held when cancelling work. This could potentially lead to security vulnerabilities,...

UBUNTU-CVE-2022-3977

A use-after-free flaw was found in the Linux kernel MCTP Management Component Transport Protocol functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on...

PT-2022-35285 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.75 Description: The issue arises when the code attempts to access the sk wq of a socket sock that is already dead. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2022-35679 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.4.220 Description: The issue is related to the Linux Kernel's rds tcp reset callbacks function, where the sock lock is held when cancelling work. This could potentially lead to security vulnerabilities,...

PT-2022-35749 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.19.262 Description: The issue arises when the code attempts to access the sk wq of a socket sock that is already dead. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2022-35105 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.3 Description: The issue is related to the use of kvmalloc/kvfree for larger packets in vhost/vsock. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel...

PT-2022-35493 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.10.150 Description: The issue arises when the code attempts to access the sk wq of a socket sock that is already dead. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2022-35828 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.14.296 Description: The issue arises when the code attempts to access the sk wq of a socket sock that is already dead. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2022-35023 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.3 Description: A potential memory leak issue has been identified. The issue is related to the wifi driver rtw89 and the handling of unused skb. The actual impact and attack plausibility have not yet been...

PT-2022-35014 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to 6.0.3 Description: The issue arises when the code attempts to access the sk wq of a socket sock that is already dead. This could potentially lead to security vulnerabilities, although the actual impact and attac...

OESA-2022-2083 openssh security update

OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks. In addition, OpenSSH provides a large suite of secure tunneling capabilities, several authentication methods, and...

kernel: mptcp: fix race on unaccepted mptcp sockets

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race on unaccepted mptcp sockets When the listener socket owning the relevant request is closed, it frees the unaccepted subflows and that causes later deletion of the paired MPTCP sockets. The mptcp socket's worker ca...

kernel: veth: Ensure eth header is in skb's linear part

In the Linux kernel, the following vulnerability has been resolved: veth: Ensure eth header is in skb's linear part After feeding a decapsulated packet to a veth device with actmirred, skbheadlen may be 0. But vethxmit calls devforwardskb, which expects at least ETHHLEN byte of linear data as...

kernel: igb: fix a use-after-free issue in igb_clean_tx_ring

A vulnerability was found in the Linux kernel in the Intel igb driver function igbcleantxring when running in XDP mode. A use-after-free issue can arise from attempting to free skb memory using devkfreeskbany. This issue potentially leads to system instability and memory corruption...

kernel: bpf: Fix request_sock leak in sk lookup helpers

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix requestsock leak in sk lookup helpers A customer reported a requestsocket leak in a Calico cloud environment. We found that a BPF program was doing a socket lookup with takes a refcnt on the socket and that it was findin...