Linux Distros Unpatched Vulnerability : CVE-2026-45983

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfsd: never defer requests during idmap lookup During v4 request compound arg decoding, some ops e.g. SETATTR can trigger idmap lookup upcalls. When those upcal...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50280)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-50280 advisory. - ptrace: slightly saner 'getdumpable' logic Linus Torvalds Orabug: 39391447 CVE-2026-46333 - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache Jeff...

RXSA-2026:13577 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend CVE-2025-40252 kernel: crypto: asymmetricke...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: NFSD: Fixed iasize underflow iaattr::iasize is a lofft, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Therefore, there is a range of valid file size values that an NFS client...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfsd: fixed the refcount leak in nfsdgetdirdeleg Claude pointed out that there is a refcount leak in nfsdgetdirdeleg. Ensure that the reference to “fp” is released before returning...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: NFSD: Fixed a potential use-after-free in nfsdfileput The nfsdfileputnoref function can free the @nf object; therefore, do not dereference @nf immediately after returning from nfsdfileputnoref...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 performs a “goto out” operation before checking the security label, then args.context will be set to uninitialized garbage on the stack. We will then...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: Never decrement pendingasynccopies on error The error occurs when nfsd4copy calls cleanupasynccopy, which already decrements nn-pendingasynccopies...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfsd: calls oprelease, even when opfunc returns an error. For operations with “trivial” responses, nfsd4encodeoperation will shortcut most of the encoding process and simply perform marshaling of the status. One of the things it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed a cred reference leak in nfsdnllistenersetdoit. nfsdnllistenersetdoit uses getcurrentcred without using putcred. As we can see from other calls, svcxprtcreatefromsa does not require an additional reference count...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fixed a use-after-free issue on the source server during inter-server copying. The use-after-free occurred when the laundromat attempted to free an expired cpntfstate entry from the s2scpstateids list after inter-server...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the reference leak in nfsd4addrdaccesstowrdeleg. The nfsd4addrdaccesstowrdeleg function overwrites fp-fifdsORDONLY unconditionally with a newly acquired nfsdfile. However, if the client already has a SHAREACCESSREA...

kernel: Revert "NFSD: Remove the cap on number of operations per NFSv4 COMPOUND"

In the Linux kernel, the following vulnerability has been resolved: Revert "NFSD: Remove the cap on number of operations per NFSv4 COMPOUND" I've found that pynfs COMP6 now leaves the connection or lease in a strange state, which causes CLOSE9 to hang indefinitely. I've dug into it a little, but ...

OESA-2026-2311 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Return the correct value in vmwtranslateptr functions Before the referenced fixes these functions used a lookup function that returned a pointer. Thi...

CLSA-2026-1778756179 kernel: Fix of 2 CVEs

net: skbuff: propagate shared-frag marker through pskbcopy - Bluetooth: btusb: revert use of devmkzalloc in btusb CVE-2025-71082 - nfsd: fix use-after-free due to delegation race CVE-2021-47506...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50271)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50271 advisory. - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache Jeff Layton Orabug: 39362036 CVE-2026-31402 - net/sched: Only allow actct to bind to...

RHEL 10 : kernel (RHSA-2026:15883)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:15883 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Denial of...

CVE-2026-43394

A flaw was found in the Linux kernel's nfsd component. The nfsdnllistenersetdoit function fails to properly release credential references, resulting in a resource leak. This issue could allow a local attacker to exhaust system resources, potentially leading to a Denial of Service DoS...