Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel security update

4.18.0-553.84.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Linux Distros Unpatched Vulnerability : CVE-2025-37871

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: nfsd: decrease sccount directly if fail to queue dlrecall A deadlock warning occurred when...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nfsd: The flag SCSTATUSFREEABLE is now allowed when searching via nfs4lookupstateid. The pynfs DELEG8 test fails when run against nfsd. It acquires a delegation and then waits for the lease time out. It then attempts to use the...

CVE-2025-37871

In the Linux kernel, the following vulnerability has been resolved: nfsd: decrease sccount directly if fail to queue dlrecall A deadlock warning occurred when invoking nfs4putstid following a failed dlrecall queue operation: T1 T2 nfs4laundromat nfs4getclientreaplist nfs4anylockblockers breakleas...

CVE-2025-37871

CVE-2025-37871 is a Linux kernel vulnerability fixed by changing how sc_count is decremented when a dl_recall queue operation fails for NFS delegations. The described scenario shows a deadlock warning during nfs4_put_stid after a failed dl_recall queue, caused by a potential lock ordering issue w...

CVE-2025-39688

In the Linux kernel, the following vulnerability has been resolved: nfsd: allow SCSTATUSFREEABLE when searching via nfs4lookupstateid The pynfs DELEG8 test fails when run against nfsd. It acquires a delegation and then lets the lease time out. It then tries to use the deleg stateid and expects to...

CVE-2025-39688 nfsd: allow SC_STATUS_FREEABLE when searching via nfs4_lookup_stateid()

In the Linux kernel, the following vulnerability has been resolved: nfsd: allow SCSTATUSFREEABLE when searching via nfs4lookupstateid The pynfs DELEG8 test fails when run against nfsd. It acquires a delegation and then lets the lease time out. It then tries to use the deleg stateid and expects to...

CVE-2025-39688

CVE-2025-39688 affects the Linux kernel NFS server (nfsd): revoked delegations could be hidden due to nfs4_lookup_stateid() not allowing SC_STATUS_FREEABLE in its statusmask. The fix adds SC_STATUS_FREEABLE to the always-allowed flags in nfs4_lookup_stateid() and removes SC_STATUS_FREEABLE from n...

DEBIAN-CVE-2025-22025

In the Linux kernel, the following vulnerability has been resolved: nfsd: put dlstid if fail to queue dlrecall Before calling nfsd4runcb to queue dlrecall to the callbackwq, we increment the reference count of dlstid. We expect that after the corresponding workstruct is processed, the reference...

UBUNTU-CVE-2024-50043

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix possible badness in FREESTATEID When multiple FREESTATEIDs are sent for the same delegation stateid, it can lead to a possible either use-after-free or counter refcount underflow errors. In nfsd4freestateid under the...

DEBIAN-CVE-2024-46690

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

SUSE CVE-2021-47506

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix use-after-free due to delegation race A delegation break could arrive as soon as we've called vfssetlease. A delegation break runs a callback which immediately in nfsd4cbrecallprepare adds the delegation to delrecalllru...

UBUNTU-CVE-2021-47506

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix use-after-free due to delegation race A delegation break could arrive as soon as we've called vfssetlease. A delegation break runs a callback which immediately in nfsd4cbrecallprepare adds the delegation to delrecalllru...

kernel security and bug fix update

2.6.32-279.22.1 - virt kvm: invalid opcode oops on SETSREGS with OSXSAVE bit set Petr Matousek 862903 862904 CVE-2012-4461 - fs fuse: optimize fusedirectio Brian Foster 865305 858850 - fs fuse: optimize fusegetuserpages Brian Foster 865305 858850 - fs fuse: use getuserpagesfast Brian Foster 86530...