CVE-2026-64260

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid queue-stopped races and set/read that value under lock There are several readers of queue-stopped that check the value under lock, but fuseuringcommitfetch did not and actually the value was not set under the lo...

CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

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...

UBUNTU-CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

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...

UBUNTU-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-2026-64262

In the Linux kernel, the following vulnerability has been resolved: 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 the ring context, fuseuringsendintask takes the cancel branch, assigns...

UBUNTU-CVE-2026-64262

In the Linux kernel, the following vulnerability has been resolved: 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 the ring context, fuseuringsendintask takes the cancel branch, assigns...

UBUNTU-CVE-2026-64264

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix EFAULT clobber in fuseuringcommit copyfromuser returns the number of bytes not copied as an unsigned residual on failure 1..sizeofstruct fuseoutheader. fuseuringcommit stores that residual in ssizet err, sets...

CVE-2026-64263

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix moving cancelled entry to entinuserspace list fuseuringcancel moves entries that are available these have no reqs attached to the entinuserspace list. entlistrequestexpired checks the first entry on entinuserspace...

UBUNTU-CVE-2026-64263

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix moving cancelled entry to entinuserspace list fuseuringcancel moves entries that are available these have no reqs attached to the entinuserspace list. entlistrequestexpired checks the first entry on entinuserspace...

CVE-2026-64260

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid queue-stopped races and set/read that value under lock There are several readers of queue-stopped that check the value under lock, but fuseuringcommitfetch did not and actually the value was not set under the lo...

UBUNTU-CVE-2026-64260

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid queue-stopped races and set/read that value under lock There are several readers of queue-stopped that check the value under lock, but fuseuringcommitfetch did not and actually the value was not set under the lo...

CVE-2026-64261

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuseuringasyncstopqueues fuseuringasyncstopqueues might run when the last reference on ring-queuerefs was already dropped. In order to avoid an early destruction a reference on struct fuseconn ...

UBUNTU-CVE-2026-64261

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuseuringasyncstopqueues fuseuringasyncstopqueues might run when the last reference on ring-queuerefs was already dropped. In order to avoid an early destruction a reference on struct fuseconn ...

CVE-2026-64267

In the Linux kernel, the following vulnerability has been resolved: fuse: avoid 32-bit prune notification count wrap FUSENOTIFYPRUNE validates the nodeid payload length with: size - sizeofoutarg != outarg.count sizeofu64 On 32-bit kernels, sizet is also 32 bits, so the daemon-controlled count...

UBUNTU-CVE-2026-64267

In the Linux kernel, the following vulnerability has been resolved: fuse: avoid 32-bit prune notification count wrap FUSENOTIFYPRUNE validates the nodeid payload length with: size - sizeofoutarg != outarg.count sizeofu64 On 32-bit kernels, sizet is also 32 bits, so the daemon-controlled count...

CVE-2026-64264

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: fix EFAULT clobber in fuseuringcommit copyfromuser returns the number of bytes not copied as an unsigned residual on failure 1..sizeofstruct fuseoutheader. fuseuringcommit stores that residual in ssizet err, sets...