Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: udp: Fixed multiple wraparounds of sk-skrmemalloc. The function udpenqueuescheduleskb has the following condition: c if atomicread&sk-skrmemalloc sk-skrcvbuf goto drop; sk-skrcvbuf is initialized with net.core.rmemdefault, and ca...

kernel: veth: Fix use after free in XDP_REDIRECT

A use-after-free vulnerability has been identified within the vethconvertskbtoxdpbuff function of the Linux kernel's veth driver. The flaw stems from improper memory management during packet headroom expansion for XDP eXpress Data Path. Specifically, when the pskbexpandhead function allocates new...

CVE-2022-49924 nfc: fdp: Fix potential memory leak in fdp_nci_send()

In the Linux kernel, the following vulnerability has been resolved: nfc: fdp: Fix potential memory leak in fdpncisend fdpncisend will call fdpncii2cwrite that will not free skb in the function. As a result, when fdpncii2cwrite finished, the skb will memleak. fdpncisend should free skb after...

SUSE CVE-2021-47668

In the Linux kernel, the following vulnerability has been resolved: can: dev: canrestart: fix use after free bug After calling netifrxniskb, dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is accessed after the netifrxni in: stats-rxbytes += cf-len; Reordering th...

CVE-2021-47669

In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcanxmit: fix use after free bug After calling netifrxniskb, dereferencing skb is unsafe. Especially, the canfdframe cfd which aliases skb memory is accessed after the netifrxni...

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 security vulnerability exists in the Linux kernel that stems from the reuse of skb memory after release in the vxcanxmit function...

CVE-2025-21855 ibmvnic: Don't reference skb after sending to VIOS

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

CVE-2025-21855 ibmvnic: Don't reference skb after sending to VIOS

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

CVE-2025-21855

Summary (CVE-2025-21855, Linux kernel): The ibmvnic driver is affected by a use-after-free in ibmvnic_xmit caused by referencing skb memory after flushing the transmit buffer to VIOS. A race between skb length access and memory free (triggered by VIOS interrupts) can lead to a UAF condition, as e...

PT-2025-11017

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A use-after-free issue exists in the Linux kernel, specifically in the ibmvnic module. After sending a buffer to VIOS, it is invalid to access the skb memory because the VIOS can trigg...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Added a check for transmission to prevent skb leaks. Here’s a summary of how the driver stores a reference to an skb during transmission: 1. txbufffreemapconsumerindex-skb = newskb; 2. freemapconsumerindex =...

CVE-2024-56788 net: ethernet: oa_tc6: fix tx skb race condition between reference pointers

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: oatc6: fix tx skb race condition between reference pointers There are two skb pointers to manage tx skb's enqueued from n/w stack. waitingtxskb pointer points to the tx skb which needs to be processed and...

CVE-2024-53236

In the Linux kernel, the following vulnerability has been resolved: xsk: Free skb when TX metadata options are invalid When a new skb is allocated for transmitting an xsk descriptor, i.e., for every non-multibuf descriptor or the first frag of a multibuf descriptor, but the descriptor is later...

CVE-2024-53236

CVE-2024-53236 (Linux kernel) : The vulnerability occurs in the XDP/AF_XDP path where, if a newly allocated skb for an xsk descriptor is created but its TX metadata options are later deemed invalid, the skb is not freed. This can leak skbs until the send buffer is full, preventing further packet ...

CVE-2024-41066

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Add tx check to prevent skb leak Below is a summary of how the driver stores a reference to an skb during transmit: txbufffreemapconsumerindex-skb = newskb; freemapconsumerindex = IBMVNICINVALIDMAP; consumerindex ++; Whe...

CVE-2024-41066 ibmvnic: Add tx check to prevent skb leak

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Add tx check to prevent skb leak Below is a summary of how the driver stores a reference to an skb during transmit: txbufffreemapconsumerindex-skb = newskb; freemapconsumerindex = IBMVNICINVALIDMAP; consumerindex ++; Whe...

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 security vulnerability exists in the Linux kernel that stems from a failure to check if the skb address is null during a transfer, which could lead to a skb memory leak if th...

CVE-2022-48748

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in allowedingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and t...

CVE-2022-48748 net: bridge: vlan: fix memory leak in __allowed_ingress

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in allowedingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and t...

CVE-2018-11942

Failure to initialize the reserved memory which is sent to the firmware might lead to exposure of 1 byte of uninitialized kernel SKB memory to FW in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure an...