This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
History

Wed, 04 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: io_uring/poll: avoid retry wakeup loss when dropping ownership If a wakeup sets IO_POLL_RETRY_FLAG between the owning task consuming the existing instance of IO_POLL_RETRY_FLAG and the loop check of io_poll_check_events(), then we stall on processing the request until an unrelated wakeup comes along. Using atomic_cmpxchg instead of atomic_sub_return to guarantee both the count v and poll_refs are 0 and no wake-ups are missed. This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Title io_uring/poll: avoid retry wakeup loss when dropping ownership
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tue, 03 Nov 2026 19:30:00 +0000


Tue, 03 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux linux
Vendors & Products Linux linux

Tue, 03 Nov 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362

Tue, 03 Nov 2026 12:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: io_uring/poll: avoid retry wakeup loss when dropping ownership If a wakeup sets IO_POLL_RETRY_FLAG between the owning task consuming the existing instance of IO_POLL_RETRY_FLAG and the loop check of io_poll_check_events(), then we stall on processing the request until an unrelated wakeup comes along. Using atomic_cmpxchg instead of atomic_sub_return to guarantee both the count v and poll_refs are 0 and no wake-ups are missed.
Title io_uring/poll: avoid retry wakeup loss when dropping ownership
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

cve-icon MITRE

Status: REJECTED

Assigner: Linux

Published: 2026-11-03T11:48:15.743Z

Updated: 2026-11-04T18:21:33.194Z

Reserved: 2026-09-25T10:25:14.404Z

Link: CVE-2026-99263

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T12:17:33.347

Modified: 2026-11-03T20:18:31.887

Link: CVE-2026-99263

cve-icon Redhat

No data.