Linux: netback processing of zero-length transmit fragment

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CVE-2023-46838

Transmit requests in Xen's virtual network protocol can consist of multiple parts. While not really useful, except for the initial part any of them may be of zero length, i.e. carry no data at all. Besides a certain initial portion of the to be transferred data, these parts are directly translate...

UBUNTU-CVE-2023-6270

A flaw was found in the ATA over Ethernet AoE driver in the Linux kernel. The aoecmdcfgpkts function improperly updates the refcnt on struct netdevice, and a use-after-free can be triggered by racing between the free on the struct and the access through the skbtxq global queue. This could lead to...

SUSE CVE-2023-6693

A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtionetflushtx function if guest features VIRTIONETFHASHREPORT, VIRTIOFVERSION1 and VIRTIONETFMRGRXBUF are enabled. This could allow a malicious user to overwrite local variables...

UBUNTU-CVE-2023-6693

A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtionetflushtx function if guest features VIRTIONETFHASHREPORT, VIRTIOFVERSION1 and VIRTIONETFMRGRXBUF are enabled. This could allow a malicious user to overwrite local variables...

QEMU Security Vulnerabilities

QEMU Quick Emulator is a set of simulation processor software by Fabrice Bellard, a French individual developer. The software is fast and cross-platform. A security vulnerability exists in QEMU, which stems from a stack-based buffer overflow in virtio-net that occurs when the virtionetflushtx...

kernel: ice: Don't tx before switchdev is fully configured

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that iceeswitchportstartxmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if...

kernel: ice: Don't tx before switchdev is fully configured

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that iceeswitchportstartxmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if...

kernel: Linux kernel: Denial of Service in ice driver via uninitialized transmit rings

A flaw was found in the Linux kernel's ice network driver. A local user, by changing the number of transmit queues using the ethtool utility, can trigger an issue where newly allocated transmit rings are not properly initialized. This can lead to a null pointer dereference, causing a system crash...

kernel: ice: xsk: disable txq irq before flushing hw

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: disable txq irq before flushing hw iceqpdis intends to stop a given queue pair that is a target of xsk pool attach/detach. One of the steps is to disable interrupts on these queues. It currently is broken in a way that...

kernel: net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()

An uninitialized memory access flaw was found in the Linux kernel's QRTR Qualcomm IPC Router protocol in the transmit resume handling. When processing RESUMETX messages, if the packet size is smaller than the expected control structure, the qrtrtxresume function reads uninitialized memory from th...

kernel: tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp

In the Linux kernel, the following vulnerability has been resolved: tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. syzkaller reported 0 memory leaks of an UDP socket and ZEROCOPY skbs. We can reproduce the problem with these sequences: sk = socketAFINET, SOCKDGRAM, 0...

kernel: xfrm: policy: fix metadata dst->dev xmit null pointer dereference

A flaw was found in the XFRM policy support in the Linux kernel. A NULL pointer dereference can be triggered when a socket buffer is transmitted via an XFRM interface due to a missing check, resulting in a denial of service...

kernel: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbufdesc in smccdctxhandler When performing a stress test on SMC-R by rmmod mlx5ib driver during the wrk/nginx test, we found that there is a probability of triggering a panic while terminating all link groups...

kernel: Linux kernel: Denial of Service in ice driver via uninitialized transmit rings

A flaw was found in the Linux kernel's ice network driver. A local user, by changing the number of transmit queues using the ethtool utility, can trigger an issue where newly allocated transmit rings are not properly initialized. This can lead to a null pointer dereference, causing a system crash...

kernel: net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()

An uninitialized memory access flaw was found in the Linux kernel's QRTR Qualcomm IPC Router protocol in the transmit resume handling. When processing RESUMETX messages, if the packet size is smaller than the expected control structure, the qrtrtxresume function reads uninitialized memory from th...

PT-2023-9479 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a use-after-free problem in the ravb tx timeout work function. This occurs when ravb stop fails to call cancel work sync, allowing ravb tx timeout work to use...

CVE-2023-44838

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the TXPower parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted input...

CVE-2023-44838

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the TXPower parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service DoS via a crafted input...

D-Link DIR-823G Stack Buffer Overflow Vulnerability

The D-Link DIR-823G is a home dual-band Gigabit wireless router with second-generation 802.11ac Wi-Fi5 technology designed for medium- to high-speed broadband networks. The D-Link DIR-823G suffers from a stack buffer overflow vulnerability that originates from the failure of SetWLanRadioSecurity'...