CVE-2022-49663

CVE-2022-49663 affects the Linux kernel in the tunneling path used by Genefe/IPv4 tunnels. The root cause is an assumption that skb->mac_header is set in skb_tunnel_check_pmtu(); debug added in a kernel commit triggered a warning in ndo_start_xmit() paths, since skb->data should point to th...

CVE-2022-49663 tunnels: do not assume mac header is set in skb_tunnel_check_pmtu()

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

CVE-2022-49663 tunnels: do not assume mac header is set in skb_tunnel_check_pmtu()

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

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 Linux kernel that stems from the assumption that the mac header is set in skbtunnelcheckpmtu...

CVE-2024-56636

In the Linux kernel, the following vulnerability has been resolved: geneve: do not assume mac header is set in genevexmitskb We should not assume mac header is set in output path. Use skbethhdr instead of ethhdr to fix the issue. sysbot reported the following : WARNING: CPU: 0 PID: 11635 at...

UBUNTU-CVE-2024-56636

In the Linux kernel, the following vulnerability has been resolved: geneve: do not assume mac header is set in genevexmitskb We should not assume mac header is set in output path. Use skbethhdr instead of ethhdr to fix the issue. sysbot reported the following : WARNING: CPU: 0 PID: 11635 at...

CVE-2024-56636 geneve: do not assume mac header is set in geneve_xmit_skb()

In the Linux kernel, the following vulnerability has been resolved: geneve: do not assume mac header is set in genevexmitskb We should not assume mac header is set in output path. Use skbethhdr instead of ethhdr to fix the issue. sysbot reported the following : WARNING: CPU: 0 PID: 11635 at...

CVE-2024-56636 geneve: do not assume mac header is set in geneve_xmit_skb()

In the Linux kernel, the following vulnerability has been resolved: geneve: do not assume mac header is set in genevexmitskb We should not assume mac header is set in output path. Use skbethhdr instead of ethhdr to fix the issue. sysbot reported the following : WARNING: CPU: 0 PID: 11635 at...

CVE-2024-56636

CVE-2024-56636 refers to a Linux kernel vulnerability in the geneve path where code assumed the MAC header was already present in the output path. The fix changes the code to reference the MAC header safely by using skb_eth_hdr() instead of eth_hdr(), preventing potential misreads when mac header...

CVE-2024-56636

In the Linux kernel, the following vulnerability has been resolved: geneve: do not assume mac header is set in genevexmitskb We should not assume mac header is set in output path. Use skbethhdr instead of ethhdr to fix the issue. sysbot reported the following : WARNING: CPU: 0 PID: 11635 at...

The vulnerability of the ipvlan component in the Linux operating system allows a hacker to compromise the integrity and accessibility of the system.

The vulnerability of the ipvlan component in the Linux operating system’s kernel is related to errors that occur outside the specified range, caused by the skb-macheader pointer. Exploiting this vulnerability can allow an attacker to compromise the integrity and accessibility of the system...

kernel: nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().

In the Linux kernel, the following vulnerability has been resolved: nsh: Restore skb-protocol,data,macheader for outer header in nshgsosegment. syzbot triggered various splats see 0 and links by a crafted GSO packet of VIRTIONETHDRGSOUDP layering the following protocols: ETHP8021AD + ETHPNSH +...

SUSE CVE-2024-36933

In the Linux kernel, the following vulnerability has been resolved: nsh: Restore skb-protocol,data,macheader for outer header in nshgsosegment. syzbot triggered various splats see 0 and links by a crafted GSO packet of VIRTIONETHDRGSOUDP layering the following protocols: ETHP8021AD + ETHPNSH +...

SUSE CVE-2023-52843

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

CVE-2023-52843

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

DEBIAN-CVE-2023-52843

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

CVE-2023-52843 llc: verify mac len before reading mac header

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

DEBIAN-CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

UBUNTU-CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from an out-of-bounds error due to an unset skb-macheader...