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...

CVE-2026-89545: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sunrpc: defer rqargp and rqresp free until after RCU grace period svcrqstfree frees rqstp-rqargp and rqstp-rqresp synchronously via kfree, but defers the rqstp struct free via kfreercu. After svcexitthread calls listdelrcu and...

CVE-2026-89548: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: always drain cachecleaner before destroying a cachedetail sunrpcdestroycachedetail only cancels the global cachecleaner delayedwork when cachelist is empty. During per-netns teardown cachelist is never empty because...

CVE-2026-89551: Undefined Security Weakness

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

PT-2026-96331

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gss krb5 unwrap v2 sets buf-len to a logical length, which can be much smaller than head0.iov len the allocated receive-page capacity. It then calls xdr buf trim with a...

CVE-2026-89539: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: reject duplicate CREDSVALUE options gssxdecoptionarray walks the wire-supplied option array and, for every entry whose name matches CREDSVALUE, calls gssxdeclinuxcreds on the same struct svccred. That helper unconditional...

CVE-2026-89536: Undefined Security Weakness

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

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-2026-89532: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Fix pclforeachsegment for empty chunks When a parsed chunk list contains a chunk whose chsegcount is zero, pclforeachsegment computes its inclusive upper bound as &chunk-chsegmentschsegcount - 1. chsegcount is u32, so th...

CVE-2026-89547: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Check svc pool percpu counter allocation svccreate initializes three per-pool percpucounter stats and ignores every return value. On SMP, percpucounterinit fails when allocpercpugfp cannot satisfy the allocation, leaving...

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...

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...

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-2026-96342

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,...

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...

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...

PT-2026-96570

In the Linux kernel, the following vulnerability has been resolved: sunrpc: init gssp lock before publishing proc entry create use gss proxy proc entry publishes /proc/net/rpc/use-gss-proxy via proc create data before init gssp clnt runs mutex init on sn-gssp lock. Once the dentry is linked under...

CVE-2026-89540: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sunrpc: init gssplock before publishing proc entry createusegssproxyprocentry publishes /proc/net/rpc/use-gss-proxy via proccreatedata before initgsspclnt runs mutexinit on sn-gssplock. Once the dentry is linked under...

PT-2026-90258

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 unwrap v2 function reads header fields before validating that the token is at least 16 bytes long. This can lead to out-of-boun...

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...