This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Linux |
|
No data.
No data.
References
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/zcrx: fix buffer offsets in areas above 4GB io_zcrx_queue_cqe() computes the offset of the buffer in its area from net_iov_idx(), which is an unsigned int, so the shift is done in 32 bits and only the result is widened to the u64 that goes into the CQE. An area can be up to 1TB in size. For every niov beyond the first 4GB the CQE points the application at a buffer 4GB, or a multiple of that, below the one which has the data. It reads the wrong data, and then returns a buffer it doesn't own via the refill queue while the real one is never given back. | This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. |
| Title | io_uring/zcrx: fix buffer offsets in areas above 4GB | |
| CPEs |
Tue, 03 Nov 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Tue, 03 Nov 2026 15:00:00 +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-125 CWE-416 |
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/zcrx: fix buffer offsets in areas above 4GB io_zcrx_queue_cqe() computes the offset of the buffer in its area from net_iov_idx(), which is an unsigned int, so the shift is done in 32 bits and only the result is widened to the u64 that goes into the CQE. An area can be up to 1TB in size. For every niov beyond the first 4GB the CQE points the application at a buffer 4GB, or a multiple of that, below the one which has the data. It reads the wrong data, and then returns a buffer it doesn't own via the refill queue while the real one is never given back. | |
| Title | io_uring/zcrx: fix buffer offsets in areas above 4GB | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
MITRE
Status: REJECTED
Assigner: Linux
Published: 2026-11-03T11:48:17.035Z
Updated: 2026-11-04T18:21:37.412Z
Reserved: 2026-09-25T10:25:14.404Z
Link: CVE-2026-99266
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-03T12:17:33.747
Modified: 2026-11-03T20:18:32.283
Link: CVE-2026-99266
Redhat
No data.