EUVD-2026-76452

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gssunwrapresppriv length checks gssunwrapresppriv validates the RPCSECGSS opaque length with offset = u8 p - u8 head-iovbase; if offset + opaquelen rcvbuf-len goto unwrapfailed; majstat = gssunwrapctx-gcgssctx,...

CVE-2026-89540 sunrpc: init gssp_lock before publishing proc entry

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...

CVE-2026-89540 sunrpc: init gssp_lock before publishing proc entry

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...

CVE-2026-89540

A race condition in the Linux kernel's sunrpc component allows a local attacker to trigger concurrent access to set_gssp_clnt(). The root cause is that create_use_gss_proxy_proc_entry() publishes /proc/net/rpc/use-gss-proxy via proc_create_data() before the gssp_lock mutex is initialized, creatin...

CVE-2026-89539 SUNRPC: reject duplicate CREDS_VALUE options

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-2026-89539

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-2026-89538 SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gsskrb5unwrapv2 sets buf-len to a logical length, which can be much smaller than head0.iovlen the allocated receive-page capacity. It then calls xdrbuftrim with a trim...

CVE-2026-89538 SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gsskrb5unwrapv2 sets buf-len to a logical length, which can be much smaller than head0.iovlen the allocated receive-page capacity. It then calls xdrbuftrim with a trim...

CVE-2026-89538

CVE-2026-89538 affects the Linux kernel's SUNRPC component, specifically the gss_krb5_unwrap_v2() function. A remote peer holding a valid GSS context can send a Kerberos v2 wrap token whose 16-bit "extra count" (ec) field exceeds the plaintext length—a structurally malformed token per RFC 4121 . ...

CVE-2026-89537

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-2026-89537

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-2026-96570

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...

PT-2026-90254

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 fails to properly validate the 16-bit extra count ec field in Kerberos v2 token headers. A peer with a valid...

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...

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-2026-90266

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SUNRPC component where the svcauth gss unwrap priv function only validates the upper bound of the wire-supplied opaque length len before passing the buffer to gss...

PT-2026-90257

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 unwrap resp priv function improperly validates the RPCSEC GSS opaque length. Because the sum of offset and opaque len is computed...

EulerOS 2.0 SP12 : bind (EulerOS-SA-2026-3324)

According to the versions of the bind packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving a...

Important: Red Hat Security Advisory: postgresql security update

An update for postgresql 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...