CVE-2026-99265

Published Nov 3, 2026 CVSS n/a EPSS n/a KEV · Not listed
Description
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References

No reference.

History
Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: io_uring/openclose: keep the lock in io_pipe_fixed() io_pipe_fixed() installs both ends of the pipe in the fixed file table, drops ->uring_lock, and copies the slot numbers to the application. If that faults, it takes the lock again and removes whatever is in these slots. If the request is run by io-wq the lock really is dropped in between, and the slots are visible to everybody else. By the time the error path gets to them, they may have been closed and reused, by IORING_OP_CLOSE and a direct open or accept, or by IORING_REGISTER_FILES_UPDATE. Then a file is removed from the table that has nothing to do with the failed request. Do the copy with the lock held. Faulting in user memory under ->uring_lock is fine, the registration paths do it all the time. This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Title io_uring/openclose: keep the lock in io_pipe_fixed()
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Linux linux
Vendors & Products Linux linux
Type Values Removed Values Added
Weaknesses CWE-362
Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: io_uring/openclose: keep the lock in io_pipe_fixed() io_pipe_fixed() installs both ends of the pipe in the fixed file table, drops ->uring_lock, and copies the slot numbers to the application. If that faults, it takes the lock again and removes whatever is in these slots. If the request is run by io-wq the lock really is dropped in between, and the slots are visible to everybody else. By the time the error path gets to them, they may have been closed and reused, by IORING_OP_CLOSE and a direct open or accept, or by IORING_REGISTER_FILES_UPDATE. Then a file is removed from the table that has nothing to do with the failed request. Do the copy with the lock held. Faulting in user memory under ->uring_lock is fine, the registration paths do it all the time.
Title io_uring/openclose: keep the lock in io_pipe_fixed()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
Weaknesses

Sources

Status
REJECTED
Assigner
Linux
Published
Updated
Nov 4, 2026, 3:20 PM
Reserved
Sep 25, 2026, 10:25 AM
Status
Rejected
Published
Nov 3, 2026, 12:17 PM
Modified
Nov 9, 2026, 8:10 PM