Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.176-221.360

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.12.94-123.180

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.18.36-69.136

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.182-227.379

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.18.36-69.138

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.176-220.360

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.12.92-122.168

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.18.41-94.142

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

SUSE CVE-2026-81000

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix use-after-free in tundetach Syzbot reported a use-after-free in tundetach. This causes a call trace like the following: ================================================================== BUG: KASAN: use-after-free i...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tun: limits the printing rate when an illegal packet is received by the tun device. vhostworker calls tun callbacks to receive packets. If too many illegal packets arrive, tundoread continues to dump the packet contents. When...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: core: The unnecessary framesz check in bpfxdpadjusttail has been removed. Syzkaller reported the following issue: ======================================= “Too big” – xdp-framesz = 131072 WARNING: CPU: 0, PID: 5020, at...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: llc: A test for maclen should be performed before reading the MAC header. The LLC layer reads the MAC header using ethhdr, without verifying that the skb contains an Ethernet header. Syzbot was able to access the llcrcv functi...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix memory leaks in napigetfrags The issue was reported in kmemleak after running testprogs: Unreferenced object: 0xffff8881b1672dc0 size 232 Execution time: 4354712116 jiffies duration: 841.975 seconds Hex dump first 3...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

A flaw was discovered in the Linux kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While this will usually be correct, since tuntap devices require CAPNETADMIN, it may not always be the case. For example, a non-root user...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: can: afcan: fixed NULL pointer dereferencing in canrcvfilter. Similar to the issue reported in commit 8aa59e355949 “can: afcan: fixed NULL pointer dereferencing in canrxregister”, we need to check for a missing initialization ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Networking layer: Fixed a memory leak that occurred when uncloning an skb dst and its associated metadata. When uncloning an skb dst and its associated metadata, a new dst+metadata is allocated and later replaces the old one in t...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Net: tun: Unlinking the NAPI from the device upon destruction. Syzbot identified a race condition between the tun file and the device destruction process. NAPIs reside in the structtunfile structure, and this structure may be...

Astra Linux – Vulnerability in Linux 5.10

A double-free flaw was discovered in the Linux kernel’s TUN/TAP device driver functionality, particularly in how a user registers the device when the registernetdevice function fails with the NETDEVREGISTER notifier. This flaw allows a local user to crash the system or potentially escalate their...