The vulnerability of the EXPORT_SYMBOL_GPL() function in the net/netfilter/nfnetlink.osf.c module of the Linux kernel’s netfilter component, which allows a hacker to cause a service failure.

The vulnerability of the EXPORTSYMBOLGPL function in the net/netfilter/nfnetlink.osf.c module of the netfilter kernel of the Linux operating system is related to pointer manipulation. Exploitation of this vulnerability could allow a remote attacker to cause a service failure...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098864)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098864 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix divide-by-zero in OSFWSSMODULO nfosfmatchone computes ctx-window %...

The vulnerability of the fnnlosf_add_callback() function in the net/netfilter/nfnetlink_osf.c module of the netfilter kernel of the Linux operating system allows a attacker to compromise the confidentiality of protected information or cause service failures.

The vulnerability of the fnnlosfaddcallback function in the net/netfilter/nfnetlinkosf.c module of the netfilter kernel of the Linux operating system is related to the pointer manipulation. Exploiting this vulnerability could allow an attacker to compromise the confidentiality of protected...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102113)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102113 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix divide-by-zero in OSFWSSMODULO nfosfmatchone computes ctx-window %...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100105)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100105 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100739)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100739 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx...

CVE-2026-52998

A flaw was found in the Linux kernel's Netfilter subsystem, specifically within the nfnetlinkosf module. The nfosfttl function could attempt to access a device pointer that was not properly validated, leading to a potential null pointer dereference. This vulnerability could allow a local attacker...

Linux Distros Unpatched Vulnerability : CVE-2026-52999

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx structure is initialized once and passed by reference to...

Linux Distros Unpatched Vulnerability : CVE-2026-52998

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nfnetlinkosf: fix potential NULL dereference in ttl check The nfosfttl function accessed skb-dev to perform a local interface address lookup without...

CVE-2026-52999

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx structure is initialized once and passed by reference to nfosfmatchone for each fingerprint checked. During TCP option parsing,...

CVE-2026-52999 netfilter: nfnetlink_osf: fix out-of-bounds read on option matching

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix out-of-bounds read on option matching In nfosfmatch, the nfosfhdrctx structure is initialized once and passed by reference to nfosfmatchone for each fingerprint checked. During TCP option parsing,...

CVE-2026-52998 netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix potential NULL dereference in ttl check The nfosfttl function accessed skb-dev to perform a local interface address lookup without verifying that the device pointer was valid. Additionally, the...

CVE-2026-45841

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix divide-by-zero in OSFWSSMODULO nfosfmatchone computes ctx-window % f-wss.val in the OSFWSSMODULO branch with no guard for f-wss.val == 0. A CAPNETADMIN user can add such a fingerprint via nfnetlink; a...

CVE-2026-23397 nfnetlink_osf: validate individual option lengths in fingerprints

In the Linux kernel, the following vulnerability has been resolved: nfnetlinkosf: validate individual option lengths in fingerprints nfnlosfaddcallback validates optnum bounds and string NUL-termination but does not check individual option length fields. A zero-length option causes nfosfmatchone ...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654

The CVE-2022-48654 issue affects the Linux kernel netfilter nfnetlink_osf component, where nf_osf_find() could incorrectly return true on a mismatch. This causes copying of an uninitialized memory area in nft_osf, potentially leaking stale kernel stack data to userspace. The connected advisories ...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654 netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...