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...

CVE-2023-52843

CVE-2023-52843 (Linux kernel): The vulnerability arises in LLC processing where mac headers are read via eth_hdr without verifying that skb contains an Ethernet header. Syzbot demonstrated entry into llc_rcv on a tun device, with tun injections that can bypass mac_len validation. The fix adds a m...

AZL-42198 CVE-2024-27016 affecting package kernel for versions less than 5.15.158.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate pppoe header Ensure there is sufficient room to access the protocol field of the PPPoe header. Validate it once before the flowtable lookup, then use a helper function to access protocol field...

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...

CVE-2024-26863

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

CVE-2024-26863 hsr: Fix uninit-value access in hsr_get_node()

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

CVE-2024-26863

CVE-2024-26863 : In the Linux kernel, a vulnerability in the HSR/PRP framing layer allowed an uninitialized value to be accessed when the Ethernet header indicates a PRP/HSR packet but is not followed by an HSR tag. The issue arises in hsr_get_node() and can lead to uninit-value reads as shown by...

CVE-2024-26636

In the Linux kernel, the following vulnerability has been resolved: llc: make llcuisendmsg more robust against bonding changes syzbot was able to trick llcuisendmsg, allocating an skb with no headroom, but subsequently trying to push 14 bytes of Ethernet header 1 Like some others, llcuisendmsg...

UBUNTU-CVE-2024-26636

In the Linux kernel, the following vulnerability has been resolved: llc: make llcuisendmsg more robust against bonding changes syzbot was able to trick llcuisendmsg, allocating an skb with no headroom, but subsequently trying to push 14 bytes of Ethernet header 1 Like some others, llcuisendmsg...

CVE-2024-26636 llc: make llc_ui_sendmsg() more robust against bonding changes

In the Linux kernel, the following vulnerability has been resolved: llc: make llcuisendmsg more robust against bonding changes syzbot was able to trick llcuisendmsg, allocating an skb with no headroom, but subsequently trying to push 14 bytes of Ethernet header 1 Like some others, llcuisendmsg...

CVE-2024-26636 llc: make llc_ui_sendmsg() more robust against bonding changes

In the Linux kernel, the following vulnerability has been resolved: llc: make llcuisendmsg more robust against bonding changes syzbot was able to trick llcuisendmsg, allocating an skb with no headroom, but subsequently trying to push 14 bytes of Ethernet header 1 Like some others, llcuisendmsg...

CVE-2024-26636

CVE-2024-26636 : In the Linux kernel, the llc_ui_sendmsg() path could allocate an skb with insufficient headroom and then push an Ethernet header, triggering a bug path when the socket lock is reacquired. The fix reserves space with LL_RESERVED_SPACE(), re-checks all conditions after reacquiring ...

CVE-2024-26636

In the Linux kernel, the following vulnerability has been resolved: llc: make llcuisendmsg more robust against bonding changes syzbot was able to trick llcuisendmsg, allocating an skb with no headroom, but subsequently trying to push 14 bytes of Ethernet header 1 Like some others, llcuisendmsg...

kernel: bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type()

In the Linux kernel, the following vulnerability has been resolved: bpf, testrun: Fix use-after-free issue in ethskbpkttype KMSAN reported a use-after-free issue in ethskbpkttype1. The cause of the issue was that ethskbpkttype accessed skb's data that didn't contain an Ethernet header. This occur...

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: 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...

GSD-2022-1002169 veth: Ensure eth header is in skb's linear part

veth: Ensure eth header is in skb's linear part This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.190 by commit...

kernel security and bug fix update

2.6.32-279.9.1.el6 - md raid1, raid10: avoid deadlock during resync/recovery. Dave Wysochanski 845464 835613 - fs dlm: fix deadlock between dlmsend and dlmcontrold David Teigland 849051 824964 - ata libata: Add space to fix 2GB ATA Flash Disk/ADMA428M blacklist Prarit Bhargava 851445 843849 - fs...