Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: exthdr: fix 4-byte stack OOB write If priv-len is a multiple of 4, then dstlen / 4 can write past the destination array which leads to stack corruption. This construct is necessary to clean th...

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 flaw in the validation of the IFLAVFVLANLIST attribute of the rtnetlink module...

The vulnerability of the /view/networkConfig/vlan/vlan_add_commit.php file in the Ruijie RG-UAC router software allows a attacker to execute any command they desire.

The vulnerability of the /view/networkConfig/vlan/vlanaddcommit.php file in Ruijie RG-UAC router microsoftware exists due to the failure to address the special elements used in the operating system command. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

SUSE CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

SUSE CVE-2021-47559

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fix NULL pointer dereferencing in smcvlanbytcpsk Coverity reports a possible NULL dereferencing problem: in smcvlanbytcpsk: 6. returnednull: netdevlowergetnext returns NULL checked 29 out of 30 times. 7. varassigned:...

CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

Ruijie Networks RG-UAC 操作系统命令注入漏洞

Ruijie Networks RG-UAC is an Internet behavior management and auditing product from China's Ruijie Networks Ruijie Networks. It is used to solve Internet auditing problems. Ruijie Networks RG-UAC suffers from an operating system command injection vulnerability that originates from an unknown...

CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

DEBIAN-CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

UBUNTU-CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47555 net: vlan: fix underflow for the real_dev refcnt

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47555

Summary (supported by provided docs): In the Linux kernel, the VLAN real_dev refcnt underflow was fixed. The issue occurred when an error was injected before dev_hold(real_dev) in register_vlan_dev(), causing the real_dev refcount to underflow and triggering a warning and an endless wait-loop dur...

CVE-2021-47555 net: vlan: fix underflow for the real_dev refcnt

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

PT-2024-8991

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a memory leak in the Linux kernel's VLAN component. When a dummy netdevice is removed, it can cause an underflow of the reference count for the real device,...

CVE-2021-47555: Integer Underflow (Wrap or Wraparound)

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

CVE-2021-47225

A vulnerability was found in the Linux kernel's mac80211 module, where closing an active AP interface while its associated APVLAN interfaces are still up can lead to a deadlock. This situation occurs because the system tries to lock a resource that is already held, causing the operation to freeze...

CVE-2021-47223

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst null pointer dereference This patch fixes a tunneldst null pointer dereference due to lockless access in the tunnel egress path. When deleting a vlan tunnel the tunneldst pointer is set to NULL...