5.5
MEDIUM
CVSS 3.1
CVE-2025-71149
io_uring/poll: correctly handle io_poll_add() return value on update
Overview
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Details
INFO
Published Date :
Jan. 23, 2026, 3:16 p.m.
Last Modified :
May 2, 2026, 7:16 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
Address a race condition in io_uring/poll related to io_poll_add() return value handling.
- Update the Linux kernel to a version with the fix.
- Ensure io_poll_add() return values are correctly retained.
- Verify completions are consistently posted after updates.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-71149 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-71149 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2026
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2026
Action Type Old Value New Value Changed Description In the Linux kernel, the following vulnerability has been resolved: io_uring/poll: correctly handle io_poll_add() return value on update When the core of io_uring was updated to handle completions consistently and with fixed return codes, the POLL_REMOVE opcode with updates got slightly broken. If a POLL_ADD is pending and then POLL_REMOVE is used to update the events of that request, if that update causes the POLL_ADD to now trigger, then that completion is lost and a CQE is never posted. Additionally, ensure that if an update does cause an existing POLL_ADD to complete, that the completion value isn't always overwritten with -ECANCELED. For that case, whatever io_poll_add() set the value to should just be retained. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Removed CVSS V3.1 NIST: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Removed CWE NIST: NVD-CWE-noinfo Removed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.120 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.0 up to (excluding) 6.1.160 Removed Reference kernel.org: https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00 Removed Reference kernel.org: https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f Removed Reference kernel.org: https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e Removed Reference kernel.org: https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29 Removed Reference kernel.org: https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe Removed Reference Type kernel.org: https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00 Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29 Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe Types: Patch -
Initial Analysis by [email protected]
Feb. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.120 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.0 up to (excluding) 6.1.160 Added Reference Type kernel.org: https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jan. 23, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: io_uring/poll: correctly handle io_poll_add() return value on update When the core of io_uring was updated to handle completions consistently and with fixed return codes, the POLL_REMOVE opcode with updates got slightly broken. If a POLL_ADD is pending and then POLL_REMOVE is used to update the events of that request, if that update causes the POLL_ADD to now trigger, then that completion is lost and a CQE is never posted. Additionally, ensure that if an update does cause an existing POLL_ADD to complete, that the completion value isn't always overwritten with -ECANCELED. For that case, whatever io_poll_add() set the value to should just be retained. Added Reference https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00 Added Reference https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f Added Reference https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e Added Reference https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29 Added Reference https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.