CVE-2022-1227_Exploit

CVE-2022-1227Exploit Скрипт для эксплуатации CVE-2022-1227. Предыстория Рекомендуется Ubuntu 20.10. Рекомендуется Podman TODO: добавить описание принципа данной уязвимости Установка podman Следуйте инструкциям из официальной документации:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NFSD: Hold a reference to the net structure for the lifetime of the open file descriptor. The /proc/fs/nfs/exports proc entry is created during module initialization and remains valid throughout the lifetime of the module. The...

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

In the Linux kernel, the following vulnerability has been resolved: ipvs: Deferring the unregistration of ipvsftp during netns cleanup. During the netns cleanup process, ipvsftpexit may unregister ipvsftp before all connections with valid cp-app pointers are flushed, leading to a use-after-free...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Do not expose hwcounters outside of init net namespace Commit 467f432a521a “RDMA/core: Split port and device counter sysfs attributes” accidentally almost exposed hw counters to non-init net namespaces. It did not expo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: espintcp: The caching of the encap socket has been removed to avoid reference leaks. The current scheme for caching the encap socket can lead to reference leaks when trying to delete the netns. The reference chain is: xfrmstate -...

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

In the Linux kernel, the following vulnerability has been resolved: net: defer final ‘struct net’ free in netns dismantle Ilya reported a slab-use-after-free in dstdestroy 1 The issue lies in xfrm6netinit and xfrm4netinit: They copy xfrm46dstopstemplate into net-xfrm.xfrm46dstops. However, the ne...

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

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: authenable: avoid using current-nsproxy As mentioned in a previous commit of this series, using the net structure via current is not recommended for various reasons: - Inconsistency: obtaining information from the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the TCP layer, the secpath process is now executed simultaneously with the current execution of the dst process. Xiumei reported encountering a warning in xfrm6tunnelnetexit while running tests that involve creating a pair of...

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: net/tipc: fixed the slab-use-after-free issue in tipcaeadencryptdone+0x4bd/0x510 net/tipc/crypto.c:840 Syzbot reported a slab-use-after-free issue with the following call trace:...

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: xfrm: The “x-tunnel” structure is deleted as soon as the “x” structure is deleted. The IP-compatibility tunnels are currently being deleted from various lists and hashtables because the last user state that relied on those tunnel...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: unregister flowtable hooks on netns exit Unregister flowtable hooks before they are releases via nftablesflowtabledestroy otherwise hook core reports UAF. BUG: KASAN: use-after-free in...

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

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a use-after-free in tipcconnclose. syzbot reported a null-ptr-deref in tipcconnclose during netns dismantling. 0 The function tipctopsrvstop iterates through tipcnetnet-topsrv-connidr and calls tipcconnclose for ea...

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

In the Linux kernel, the following vulnerabilities have been resolved: netns: Ensure that getnetns handles zero refcount nets properly. Syzkaller encountered a warning: refcountt: Addition on 0; use-after-free. WARNING: CPU: 3 PID: 7890 at lib/refcount.c:25 refcountwarnsaturate+0xdf/0x1d0 Linked...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed a use-after-free in twtimerhandler A real-world panic issue was discovered in Linux 5.4. The details of the issue are as follows: - Bug: Unable to handle a page fault for the address: ffffde49a863de28 - Memory layout:...

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

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: rtomin/max: Avoid using current-nsproxy. As mentioned in a previous commit of this series, using the net structure via current is not recommended for various reasons: - Inconsistency: Getting information from the...

kernel: rtnetlink: add missing netlink_ns_capable() check for peer netns

A flaw was found in the Linux kernel's rtnetlink component. An unprivileged local user, leveraging a user namespace, can exploit a missing CAPNETADMIN capability check in the rtnlnewlink function. This allows the user to create paired network devices in arbitrary network namespaces, including the...

Linux Distros Unpatched Vulnerability : CVE-2026-89527

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - svcrdma: Use svcxprtput to free listener on create failure svcrdmacreate calls kfreecmaxprt when svcrdmacreatelistenid fails. svcxprtinit has already acquired ...

CVE-2026-89682

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix fcachedisposal UAF by inlining dispose state into nfsdnet nfsdfiledisposelistdelayed defers fput to nfsd service threads via a per-net freeme queue, preventing the shrinker and GC worker from bearing the cost of closing...

AZL-100803 CVE-2026-89682 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix fcachedisposal UAF by inlining dispose state into nfsdnet nfsdfiledisposelistdelayed defers fput to nfsd service threads via a per-net freeme queue, preventing the shrinker and GC worker from bearing the cost of closing...

CVE-2026-89527

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Use svcxprtput to free listener on create failure svcrdmacreate calls kfreecmaxprt when svcrdmacreatelistenid fails. svcxprtinit has already acquired a net namespace reference via getnettrack; kfree bypasses svcxprtfree...