CVE-2026-64437

CVE-2026-64437 affects the ksmbd component of the Linux kernel. A use-after-free in a deferred file_lock can be triggered by a sequence of SMB2_CLOSE followed by SMB2_CANCEL, allowing an authenticated SMB client to cause a kernel crash (denial of service) via the freed file_lock. The root cause i...

CVE-2026-64437 ksmbd: fix use-after-free of a deferred file_lock on SMB2_CLOSE then SMB2_CANCEL

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on SMB2CLOSE then SMB2CANCEL Commit f580d27e8928 "ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL" made smb2cancel skip a work whose state is...

CVE-2026-64437 ksmbd: fix use-after-free of a deferred file_lock on SMB2_CLOSE then SMB2_CANCEL

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on SMB2CLOSE then SMB2CANCEL Commit f580d27e8928 "ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL" made smb2cancel skip a work whose state is...

CVE-2026-64437

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on SMB2CLOSE then SMB2CANCEL Commit f580d27e8928 "ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL" made smb2cancel skip a work whose state is...

CVE-2026-64392

The CVE-2026-64392 entry concerns the Linux kernel ksmbd delete-on-close path. The underlying issue was that delete-on-close could execute unlink and ADS xattr removal with ksmbd worker credentials rather than the credentials captured at file open, allowing potential permission checks bypass. The...

CVE-2026-64392 ksmbd: use opener credentials for delete-on-close

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

EUVD-2026-48936

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

CVE-2026-64392

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

CVE-2026-64392 ksmbd: use opener credentials for delete-on-close

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

CVE-2026-64392

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

EUVD-2026-48886

In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not stopped on close and therefore need to be stopped unconditionally on disconnect to avoid use-after-free in the completion handler...

CVE-2026-64334 USB: serial: digi_acceleport: fix hard lockup on disconnect

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digiacceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently e.g if the device is being disconnected the driver would loop indefinitely with interrupts disabled. Check for urb...

CVE-2026-64281 svcrdma: wake sq waiters when the transport closes

In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when the transport closes Threads parked in svcrdmasqwait on scsqticketwait or scsendwait can hang indefinitely in TASKUNINTERRUPTIBLE state across transport teardown, pinning svcxprt references and...

CVE-2026-64281

CVE-2026-64281 affects the Linux kernel svcrdma transport (svc_rdma) where threads parked in svc_rdma_sq_wait() could hang indefinitely during transport teardown due to missing wakeups on close. The fixed flow adds svc_rdma_xprt_deferred_close(), which calls svc_xprt_deferred_close() and then wak...

CVE-2026-64281 svcrdma: wake sq waiters when the transport closes

In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when the transport closes Threads parked in svcrdmasqwait on scsqticketwait or scsendwait can hang indefinitely in TASKUNINTERRUPTIBLE state across transport teardown, pinning svcxprt references and...

EUVD-2026-48993

In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when the transport closes Threads parked in svcrdmasqwait on scsqticketwait or scsendwait can hang indefinitely in TASKUNINTERRUPTIBLE state across transport teardown, pinning svcxprt references and...

PT-2026-64502

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Threads parked in the svc rdma sq wait function on sc sq ticket wait or sc send wait can hang indefinitely in a TASK UNINTERRUPTIBLE state during transport teardown. This occurs because...

PT-2026-64613

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module where delete-on-close operations can be completed during deferred or durable handle teardown without available request work. In these scenarios, the...

CVE-2026-64392: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run...

PT-2026-64740

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Network File System server NFSD during layout state revocation. The find one sb stid function skips state IDs stids where sc status is non-zero. However, the SC TY...