CVE-2026-89537

CVE-2026-89537 affects the Linux kernel's SUNRPC subsystem, specifically the gss_krb5_verify_mic_v2() function, which reads RFC 4121 MIC token header fields without first validating the token length. A remote malicious NFS server can supply an undersized Kerberos MIC token, causing the verifier t...

PT-2026-90393

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd4 create file function where dentry create may provide a different dentry than the one passed in. This scenario can occur if the exported filesystem is NFS and...

PT-2026-90409

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the nfsd component, the nfsd4 create function fails to properly handle the return value of the nfsd4 acl to attr function. The return value is stored in the status variable, but a...

PT-2026-90253

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SUNRPC component where the gss krb5 verify mic v2 function fails to verify the length of the read token-len before accessing the token ID, flags byte, and padding...

PT-2026-90404

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A race condition exists in the NFSv4 server. In the nfs4 preprocess seqid op function, the stateid is obtained via nfsd4 lookup stateid, which increments the sc count reference on the nf...

CVE-2026-89537: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject short RFC 4121 MIC tokens in gsskrb5verifymicv2 gsskrb5verifymicv2 reads the token ID at ptr0..1, the flags byte at ptr2, and padding at ptr3..7, then passes ptr + GSSKRB5TOKHDRLEN and cksumlen to gsskrb5micbuildsg...

USN-8725-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - NVIDIA Tegra memory controller driver; - File systems infrastructure; - Network file system NFS server daemon; -...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the handling of cached open files in the nfsd4open code path. The commit fb70bf124b05 “NFSD: Instantiate a struct file when creating a regular NFSv4 file” added the ability to cache an open file descriptor across...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: sunrpc: pin svcxprt during the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core only takes...

SUSE CVE-2026-72217

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Bound-check xdrbuftobvec stores before writing xdrbuftobvec writes a biovec into the caller's array before testing whether that slot is in range, and the head branch performs the store with no check at all. When the...

SUSE CVE-2026-72222

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

CVE-2026-72222

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

CVE-2026-72217

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Bound-check xdrbuftobvec stores before writing xdrbuftobvec writes a biovec into the caller's array before testing whether that slot is in range, and the head branch performs the store with no check at all. When the...

UBUNTU-CVE-2026-72222

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

CVE-2026-72222

The CVE-2026-72222 entry corresponds to a Linux kernel vulnerability in the sunrpc TLS handshake path. The issue arises from races where an in-flight async TLS handshake callback can write through a freed svc_sock, due to the embedding svc_sock being container_of() referenced after tls_handshake_...

CVE-2026-72222 sunrpc: pin svc_xprt across the asynchronous TLS handshake callback

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

EUVD-2026-59121

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

CVE-2026-72222 sunrpc: pin svc_xprt across the asynchronous TLS handshake callback

In the Linux kernel, the following vulnerability has been resolved: sunrpc: pin svcxprt across the asynchronous TLS handshake callback svctcphandshake stores the raw svcxprt pointer in tlshandshakeargs.tadata and submits the request through tlsserverhellox509. The handshake core takes only...

CVE-2026-72217 SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Bound-check xdrbuftobvec stores before writing xdrbuftobvec writes a biovec into the caller's array before testing whether that slot is in range, and the head branch performs the store with no check at all. When the...

CVE-2026-72217

The CVE-2026-72217 issue concerns SUNRPC in the Linux kernel where xdr_buf_to_bvec() writes a bio_vec before validating the destination slot, allowing an out-of-bounds write when budget is exhausted. The rq_bvec array used by nfsd_vfs_write() is allocated to rq_maxpages with no slack, so an overf...