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

In the Linux kernel, the following vulnerabilities have been resolved: Tunnels: Fixed an out-of-bounds access issue when building IPv6 PMTU errors. If the ICMPv6 error is generated using a non-linear skb, the following issues occur: BUG: KASAN: Out-of-bounds access in docsum+0x220/0x240 Reading o...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: macb: Use devconsumeskbany to free TX SKBs The napiconsumeskb function is not intended to be called in a disabled IRQ context. However, after commit 6bc8a5098bf4 “net: macb: Fix txptrlock locking”, the freeing of TX SKBs is...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: skbuff: Fix a race between coalescing and releasing SKBs Commit 1effe8ca4e34 "skbuff: fix coalescing for pagepool fragment recycling" allowed coalescing to proceed with non page pool page and page pool page when @from is cloned,...

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

In the Linux kernel, the following vulnerabilities have been resolved: sctp: Linearize cloned GSO packets in sctprcv. The cloned headskb still shares these frag SKBs in the fraglist with the original headskb. Accessing these frag SKBs is not safe. syzbot reported two bugs caused by the use of...

CVE-2026-80977

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't touch shared zerocopy state in skbtxerror skbtxerror completes the zerocopy uarg and clears SKBFLALLZEROCOPY, and skbzcopydowngrademanaged clears SKBFLMANAGEDFRAGREFS. Both live in skbshinfo, which every clone...

CVE-2026-80797

CVE-2026-80797 is a memory leak in the Linux kernel NFC PN533 driver. The function pn53x_common_clean() purges resp_q before freeing the common PN533 state but does not release fragment_skb , which holds queued transmit fragments used when sending large initiator or target-mode frames. If the dev...

PT-2026-85638

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: purge fragmented skbs during cleanup pn53x common clean purges resp q before freeing the common PN533 state, but it leaves fragment skb untouched. The fragmentation helpers queue transmit fragments there while sending...

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

In the Linux kernel, the following vulnerability has been resolved: Tunnels: Fixed the crash when generating IPV4 PMTU errors due to KASAN. If we attempt to emit an ICMP error in response to a non-linear SKB, we encounter the following issue: Bug: KASAN: Out-of-bounds access in...

CVE-2026-68405

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

RHEL 10 : kernel (RHSA-2026:44270)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:44270 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-After-Free in net/g...

ALSA-2026:44270 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs CVE-2026-46323 For more details about the security issues, including the impact, a CVSS score,...

CVE-2026-63821

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: usb: fix memory leaks on USB write failures When rtwusbwriteport fails to submit a USB Request Block URB e.g., due to device disconnect or ENOMEM, the completion callback is never executed. Currently, the driver...

CVE-2026-53365

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy completion for multi-skb sends When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and attached to the last skb in the loop. Non-final skbs carry pinned user pages...

CVE-2026-53365

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy completion for multi-skb sends When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and attached to the last skb in the loop. Non-final skbs carry pinned user pages...

CVE-2026-53365

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy completion for multi-skb sends When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and attached to the last skb in the loop. Non-final skbs carry pinned user pages...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: fs/smb/client: fix out-of-bounds read in cifssanitizeprepath CVE-2026-43112 kernel: net: mana: Fix double destroyworkqueue on service rescan PCI path CVE-2026-43276 kernel: Linux kernel:...

SUSE-SU-2026:22507-1 Security update for the Linux Kernel (Live Patch 5 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.26.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

SUSE SLES12 Security Update : kernel (Live Patch 79 for SUSE Linux Enterprise 12 SP5) (SUSE-SU-2026:2592-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2592-1 advisory. This update for the SUSE Linux Enterprise Kernel 4.12.14-122.299 fixes various security issues The following security issues were fixed: -...

SUSE SLES15: kernel-livepatch-5_14_21-150400_24_200-default / etc (SUSE-SU-2026:2571-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2571-1 advisory. This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.200 fixes various security issues The following security issues were fixed: ...