CVE-2026-64258 fuse-uring: remove request-less entries from ent_w_req_queue to fix NULL deref

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from entwreqqueue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuseuringreqend will set ent-fusereq to NULL but it will leave the entry...

EUVD-2026-48971

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fusereq on SQE commit only findable after memcpy Bad userspace might try to trick us and send commit SQEs request unique / commit-id of requests that are not even send to fuse-server iouringcmddone not called...

CVE-2026-64258

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from entwreqqueue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuseuringreqend will set ent-fusereq to NULL but it will leave the entry...

CVE-2026-64259

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fusereq on SQE commit only findable after memcpy Bad userspace might try to trick us and send commit SQEs request unique / commit-id of requests that are not even send to fuse-server iouringcmddone not called...

CVE-2026-64258 fuse-uring: remove request-less entries from ent_w_req_queue to fix NULL deref

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from entwreqqueue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuseuringreqend will set ent-fusereq to NULL but it will leave the entry...

CVE-2026-64259 fuse-uring: make a fuse_req on SQE commit only findable after memcpy

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fusereq on SQE commit only findable after memcpy Bad userspace might try to trick us and send commit SQEs request unique / commit-id of requests that are not even send to fuse-server iouringcmddone not called...

EUVD-2026-48970

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from entwreqqueue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuseuringreqend will set ent-fusereq to NULL but it will leave the entry...

CVE-2026-64258

CVE-2026-64258 — Linux kernel (fuse-uring) : A NULL pointer dereference could occur in the fuse_uring path when a copy to the userspace ring buffer fails. The root cause is that, after fuse_uring_req_end() sets ent->fuse_req to NULL, the ent_w_req_queue entry remained in FRRS_FUSE_REQ, risking...

Linux Distros Unpatched Vulnerability : CVE-2026-64265

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse: clear intrentry in fuseresend and fuseremovependingreq When fuseresend moves a request from fpq-processing back to fiq-pending, it sets FRPENDING and clea...

Linux Distros Unpatched Vulnerability : CVE-2026-64262

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse-uring: end fusereq on io-uring cancel task work When iouring delivers task work with tw.cancel set PFEXITING, PFKTHREAD fallback, or percpurefisdying on th...

PT-2026-64483

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: end fuse req on io-uring cancel task work When io uring delivers task work with tw.cancel set PF EXITING, PF KTHREAD fallback, or percpu ref is dying on the ring context, fuse uring send in task takes the cancel branc...

Linux Distros Unpatched Vulnerability : CVE-2026-64266

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the...

Linux Distros Unpatched Vulnerability : CVE-2026-64261

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse-uring: Avoid use-after-free in fuseuringasyncstopqueues fuseuringasyncstopqueues might run when the last reference on ring-queuerefs was already dropped. I...

PT-2026-64485

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix EFAULT clobber in fuse uring commit copy from user returns the number of bytes not copied as an unsigned residual on failure 1..sizeofstruct fuse out header. fuse uring commit stores that residual in ssize t err,...

Linux Distros Unpatched Vulnerability : CVE-2026-64258

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse-uring: remove request-less entries from entwreqqueue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and...

PT-2026-64479

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: remove request-less entries from ent w req queue to fix NULL deref If a copy into the userspace ring buffer fails, a request will be terminated and fuse uring req end will set ent-fuse req to NULL but it will leave th...

PT-2026-64482

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the fuse-uring component. The function fuse uring async stop queues may execute after the final reference on the ring-queue refs variable has been droppe...

PT-2026-64481

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the fuse-uring component. The fuse uring commit fetch function fails to check the queue-stopped value under a lock, and the fuse uring abort end requests...

Linux Distros Unpatched Vulnerability : CVE-2026-64267

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse: avoid 32-bit prune notification count wrap FUSENOTIFYPRUNE validates the nodeid payload length with: size - sizeofoutarg != outarg.count sizeofu64 On 32-b...

Linux Distros Unpatched Vulnerability : CVE-2026-64264

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fuse-uring: fix EFAULT clobber in fuseuringcommit copyfromuser returns the number of bytes not copied as an unsigned residual on failure 1..sizeofstruct...