Linux Distros Unpatched Vulnerability : CVE-2026-53353

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in...

CVE-2026-53353

CVE-2026-53353 affects the Linux kernel HSR code. The issue arises from a window where a device can be found but hsr->self_node is not set because of the ordering of dellink() and unregister_netdevice_many(), leading to a warning in hsr_addr_is_self() that is being removed. The fix removes WAR...

CVE-2026-53260 tcp: Add preempt_{disable,enable}_nested() in reqsk_queue_hash_req().

In the Linux kernel, the following vulnerability has been resolved: tcp: Add preemptdisable,enablenested in reqskqueuehashreq. syzbot reported a weird reqsk-rskrefcnt underflow in inetcskreqskqueuedrop. The captured reqskput in inetcskreqskqueuedrop is called only when it successfully removes req...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the stackmap overflow check in bpfgetstackid Syzkaller reported a KASAN vulnerability related to out-of-bounds write operations in bpfgetstackid, when copying stack trace data. This issue occurs when the perf trace...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fallback earlier on simultaneous connections Syzkaller reports a race condition in simultaneous connections that leads to inconsistent fallback behavior. Status: WARNING: CPU: 3 PID: 33 at net/mptcp/subflow.c:1515...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Wifi: ar5523: Fixed a use-after-free in ar5523cmd when it timed out. syzkaller reported a use-after-free with the stack trace as follows 1: 38.960489 C3 ================================================================== 38.963216...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Handling of integer overflows in kmallocreserve The committed change was as follows: c ptr = kmallocsize; if ptr size = ksizeptr; size = kmallocsizeroundupsize; ptr = kmallocsize; This caused various crashes, as reported ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ASoC: lpass: Fix for KASAN use-after-free out of bounds. When we run syzkaller, we encounter an Out of Bounds error. “KASAN: slab-out-of-bounds Read in regcacheflatread.” The issue’s backtrace is as follows: BUG: KASAN:...

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

In the Linux kernel, the following vulnerabilities have been resolved: gtp: Fixed a use-after-free in gtpencapdestroy. syzkaller reported a use-after-free in gtpencapdestroy. The same process freed “sk” and accessed it illegally. The commit e198987e7dd7 “gtp: fix suspicious RCU usage” added...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013646)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013646 advisory. In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hifusb: fix memory leak of urbs in ath9khifusbdealloctxurbs Syzkaller reports a...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-013363)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013363 advisory. In the Linux kernel, the following vulnerability has been resolved: mrp: introduce active flags to prevent UAF when applicant uninit The caller of deltimersync must...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007240)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007240 advisory. In the Linux kernel, the following vulnerability has been resolved: arp: Prevent overflow in arpreqget. syzkaller reported an overflown write in arpreqget. 0 When...

UBUNTU-CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

CVE-2026-23064

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: avoid possible NULL deref tcfifeencode must make sure ifeencode does not return NULL. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1 SMP KASAN NOP...

UBUNTU-CVE-2026-23099

In the Linux kernel, the following vulnerability has been resolved: bonding: limit BONDMODE8023AD to Ethernet devices BONDMODE8023AD makes sense for ARPHRDETHER only. syzbot reported: BUG: KASAN: global-out-of-bounds in hwaddrcreate net/core/devaddrlists.c:63 inline BUG: KASAN: global-out-of-boun...

Azure Linux 3.0 Security Update: hyperv-daemons (CVE-2024-27001)

The version of hyperv-daemons installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-27001 advisory. - In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete...

Azure Linux 3.0 Security Update: kernel (CVE-2025-21862)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-21862 advisory. - In the Linux kernel, the following vulnerability has been resolved: dropmonitor: fix incorrect initializatio...

CVE-2025-68798

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: Check event before enable to avoid GPF On AMD machines cpuc-eventsidx can become NULL in a subtle race condition with NMI-throttle-x86pmustop. Check event for NULL in amdpmuenableall before enable to avoid a GPF. Th...

CVE-2025-71091

In the Linux kernel, the following vulnerability has been resolved: team: fix check for port enabled in teamqueueoverrideportpriochanged There has been a syzkaller bug reported recently with the following trace: listdel corruption, ffff888058bea080-prev is LISTPOISON2 dead000000000122 -----------...

CVE-2025-71088

CVE-2025-71088 affects the Linux kernel’s mptcp implementation. Syzkaller reported a simult-connect race in net/mptcp/subflow.c where a TCP subflow can process a simult-ack after transitioning to TCP_FIN1, bypassing the MPTCP fallback check and leaving the socket in an inconsistent state; this ca...