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-2026-90262

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SUNRPC component where a backchannel receive can complete a request during the teardown of the NFS callback service. When xprt complete bc request removes a reques...

CVE-2026-89544: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gssxdecoptionarray error path bugs Four coupled defects in the gssx XDR option-array decoder make the error paths unsafe: a NULL deref in the caller, a refcount leak on the decoded groupinfo, and a latent use-after-fr...

PT-2026-96342

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Check svc pool percpu counter allocation svc create initializes three per-pool percpu counter stats and ignores every return value. On SMP, percpu counter init fails when alloc percpu gfp cannot satisfy the allocation,...

CVE-2026-89550: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

PT-2026-96566

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauth gss: enforce krb5 token minimum length svcauth gss unwrap priv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gss unwrap: if len xdr stream remainingxdr goto unwrap...

PT-2026-90265

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sunrpc component where connections can hang indefinitely. This occurs when a service, such as nfsd running in pernode or percpu mode, is configured with fewer...

PT-2026-96448

In the Linux kernel, the following vulnerability has been resolved: sunrpc: route to a populated pool in svc pool for cpu svc set num threads spreads the requested threads evenly across the service's pools base = nrservs / sv nrpools. When a service runs fewer threads than it has pools -- e.g. an...

CVE-2026-89549: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sunrpc: route to a populated pool in svcpoolforcpu svcsetnumthreads spreads the requested threads evenly across the service's pools base = nrservs / svnrpools. When a service runs fewer threads than it has pools -- e.g. an nfsd...

PT-2026-96340

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject short RFC 4121 MIC tokens in gss krb5 verify mic v2 gss krb5 verify mic v2 reads the token ID at ptr0..1, the flags byte at ptr2, and padding at ptr3..7, then passes ptr + GSS KRB5 TOK HDR LEN and cksum len to gss...

PT-2026-96526

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gssx dec option array error path bugs Four coupled defects in the gssx XDR option-array decoder make the error paths unsafe: a NULL deref in the caller, a refcount leak on the decoded group info, and a latent...

CVE-2026-89546: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: close backchannel before destroying callback service A backchannel receive can complete a request while the NFS callback service is being torn down. xprtcompletebcrequest removes the request from bcpalist, drops...

PT-2026-90259

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the sunrpc component. The mount-event path in the rpc clnt handle event function calls rpc setup pipedir sb directly without refreshing the clnt-pipefs s...

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...

CVE-2026-89543: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix use-after-free in rpcclnthandleevent and rpcclntremovepipedir Normal client creation goes through rpcsetuppipedir, which records clnt-pipefssb, but the mount-event path in rpcclnthandleevent calls rpcsetuppipedirsb...

PT-2026-96434

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Fix pcl for each segment for empty chunks When a parsed chunk list contains a chunk whose ch segcount is zero, pcl for each segment computes its inclusive upper bound as &chunk-ch segmentsch segcount - 1. ch segcount is...

PT-2026-96401

In the Linux kernel, the following vulnerability has been resolved: sunrpc: defer rq argp and rq resp free until after RCU grace period svc rqst free frees rqstp-rq argp and rqstp-rq resp synchronously via kfree, but defers the rqstp struct free via kfree rcu. After svc exit thread calls list del...

PT-2026-96420

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdr buf trim: clamp buf-len to avoid underflow xdr buf trim trims len bytes from the tail of an xdr buf by walking the tail, pages, and head iovecs. Each per-section step uses min t so it never removes more bytes than tha...

PT-2026-96466

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: wait for in-flight client TLS handshake callback xs tls handshake sync gives xs tls handshake done a reference to the lower transport before submitting the handshake request. On timeout or signal, the synchronous waiter...

PT-2026-90263

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the SUNRPC component, the svc create function initializes three per-pool percpu counter stats but fails to check the return values. On SMP systems, if percpu counter init fails due to...