UBUNTU-CVE-2026-53353

In the Linux kernel, the following vulnerability has been resolved: hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in hsrdelselfnode, which is called from hsrdellink. Since dev-rtnllinkops-dellink is...

EUVD-2026-40987

In the Linux kernel, the following vulnerability has been resolved: hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in hsrdelselfnode, which is called from hsrdellink. Since dev-rtnllinkops-dellink is...

CVE-2026-53292

In the Linux kernel, the following vulnerability has been resolved: net: phonet: do not BUGON in pnsocketautobind on failed bind syzbot reported a kernel BUG triggered from pnsocketsendmsg via pnsocketautobind: kernel BUG at net/phonet/socket.c:213! RIP: 0010:pnsocketautobind...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: afunix: fixed the issue of struct pid leaks in OOB support. The issue arises from queueoob calling maybeaddcreds, which potentially holds a reference to a pid. However, the destructor of skb is not set either directly or by...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Do not queue data on closed subflows. Dipanjan reported a critical bug report at the last minute: WARNING: CPU: 1 PID: 10818 at net/ipv4/afinet.c:153 inetsockdestruct+0x6d0/0x8e0 net/ipv4/afinet.c:153 Linked modules:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: isotp: isotpsendmsg: added a result check for waiteventinterruptible. The waiteventinterruptible function is used to wait for complete transmission, but the result of this function, which may be interrupted, is not checked...

Siemens RUGGEDCOM RST2428P Improper Input Validation (CVE-2025-40278)

In the Linux kernel, the following vulnerability has been resolved: net: sched: actife: initialize struct tcife to fix KMSAN kernel- infoleak Fix a KMSAN kernel-infoleak detected by the syzbot . net? KMSAN: kernel-infoleak in skbdatagramiter In tcfifedump, the variable 'opt' was partially...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: pagealloc: moving the mlocked flag to freepagesprepare Syzbot reported a problem with bad page state caused by a page being freed using freepage, while the mlocked flag is still set during the freepagesprepare stage: BUG: Bad...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Net: tun: Update napi-skb after the XDP process. The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb...

kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: account for Ethernet header in nfflowpppoeproto syzbot found a potential access to uninit-value in nfflowpppoeproto Blamed commit forgot the Ethernet header. BUG: KMSAN: uninit-value in...

CVE-2026-43474

In the Linux kernel, the following vulnerability has been resolved: fs: init flagsvalid before calling vfsfileattrget syzbot reported a uninit-value bug in 1. Similar to the "get" context where the kernel's internal filekattr structure is initialized before calling vfsfileattrget, we should use t...

EUVD-2026-27787

In the Linux kernel, the following vulnerability has been resolved: hfs: Replace BUGON with error handling for CNID count checks In a06ec283e125 nextid, foldercount, and filecount in the super block info were expanded to 64 bits, and BUGONs were added to detect overflow. This triggered an error...

CVE-2026-43228

In the Linux kernel, the following vulnerability has been resolved: hfs: Replace BUGON with error handling for CNID count checks In a06ec283e125 nextid, foldercount, and filecount in the super block info were expanded to 64 bits, and BUGONs were added to detect overflow. This triggered an error...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013314)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013314 advisory. In the Linux kernel, the following vulnerability has been resolved: jfs: fix invalid free of JFSIPipimap-iimap in diUnmount syzbot found an invalid-free in diUnmount...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010812)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010812 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4evictinode' Syzbot found the following issue:...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-006997)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006997 advisory. In the Linux kernel, the following vulnerability has been resolved: jfs: fix invalid free of JFSIPipimap-iimap in diUnmount syzbot found an invalid-free in diUnmount...

UBUNTU-CVE-2026-23249

In the Linux kernel, the following vulnerability has been resolved: xfs: check for deleted cursors when revalidating two btrees The free space and inode btree repair functions will rebuild both btrees at the same time, after which it needs to evaluate both btrees to confirm that the corruptions a...

CVE-2026-23167

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: Fix race between rfkill and nciunregisterdevice. syzbot reported the splat below 0 without a repro. It indicates that struct ncidev.cmdwq had been destroyed before nciclosedevice was called via rfkill. ncidev.cmdwq is...

UBUNTU-CVE-2026-23072

In the Linux kernel, the following vulnerability has been resolved: l2tp: Fix memleak in l2tpudpencaprecv. syzbot reported memleak of struct l2tpsession, l2tptunnel, sock, etc. 0 The cited commit moved down the validation of the protocol version in l2tpudpencaprecv. The new place requires an extr...

kernel: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock

A vulnerability was found in the Linux kernel's Controller Area Network CAN protocol, within the J1939 protocol implementation. This issue occurs due to a potential deadlock caused by a race condition involving three locks: j1939sockslock, activesessionlistlock, and sksessionqueuelock. This issue...