Analysis
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Wed, 04 Nov 2026 19:30:00 +0000
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Wed, 04 Nov 2026 18:30:00 +0000
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| Description | In the Linux kernel, the following vulnerability has been resolved: io_uring/napi: make stale entries time out after 60s With dynamic tracking a NAPI id that hasn't been seen for a minute is meant to be dropped from the list the ring busy polls. The timeout is added to jiffies, but it is defined as 60 * SEC_CONVERSION, and SEC_CONVERSION isn't the number of jiffies in a second. It is the internal factor of __timespec64_to_jiffies(), HZ scaled up by SEC_JIFFIE_SC bits. For HZ=1000 that is 1000 << 22, which puts the timeout at about eight years. On 32-bit the multiplication overflows. So entries are never removed, and every id that a socket of the ring ever had keeps being polled on each wait. | This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. |
| Title | io_uring/napi: make stale entries time out after 60s | |
| CPEs |
Tue, 03 Nov 2026 19:30:00 +0000
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Tue, 03 Nov 2026 15:00:00 +0000
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| First Time appeared |
Linux linux
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| Vendors & Products |
Linux linux
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Tue, 03 Nov 2026 13:45:00 +0000
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| Weaknesses | CWE-190 CWE-703 |
Tue, 03 Nov 2026 12:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | In the Linux kernel, the following vulnerability has been resolved: io_uring/napi: make stale entries time out after 60s With dynamic tracking a NAPI id that hasn't been seen for a minute is meant to be dropped from the list the ring busy polls. The timeout is added to jiffies, but it is defined as 60 * SEC_CONVERSION, and SEC_CONVERSION isn't the number of jiffies in a second. It is the internal factor of __timespec64_to_jiffies(), HZ scaled up by SEC_JIFFIE_SC bits. For HZ=1000 that is 1000 << 22, which puts the timeout at about eight years. On 32-bit the multiplication overflows. So entries are never removed, and every id that a socket of the ring ever had keeps being polled on each wait. | |
| Title | io_uring/napi: make stale entries time out after 60s | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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MITRE
Status: REJECTED
Assigner: Linux
Published:
Updated: 2026-11-04T18:21:39.995Z
Reserved: 2026-09-25T10:25:14.404Z
Link: CVE-2026-99267
Vulnrichment
No data.
NVD
Status : Rejected
Published: 2026-11-03T12:17:33.860
Modified: 2026-11-04T19:17:42.433
Link: CVE-2026-99267
Redhat
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OpenCVE Enrichment
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