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CVE-2025-21655 io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period
| Reporter | Title | Published | Views | Family All 172 |
|---|---|---|---|---|
 | Linux io_uring Use-After-Free Exploit | 22 Feb 202500:00 | – | zdt |
 | Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-823) | 5 Feb 202500:00 | – | nessus |
| AlmaLinux 10 : kernel (ALSA-2025:20095) | 25 Nov 202500:00 | – | nessus |
| Debian dla-4076 : linux-config-6.1 - security update | 1 Mar 202500:00 | – | nessus |
| Debian dsa-5860 : affs-modules-6.1.0-21-4kc-malta-di - security update | 7 Feb 202500:00 | – | nessus |
| Oracle Linux 10 : ELSA-2025-20095-0: / kernel (ELSA-2025-200950) | 3 Dec 202500:00 | – | nessus |
| Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20480) | 18 Jul 202500:00 | – | nessus |
| Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20530) | 19 Aug 202500:00 | – | nessus |
| Photon OS 5.0: Linux PHSA-2025-5.0-0458 | 10 Feb 202500:00 | – | nessus |
| RHEL 10 : kernel (RHSA-2025:20095) | 11 Nov 202500:00 | – | nessus |
10
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"io_uring/eventfd.c"
],
"versions": [
{
"version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
"lessThan": "6b63308c28987c6010b1180c72a6db4df6c68033",
"status": "affected",
"versionType": "git"
},
{
"version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
"lessThan": "8efff2aa2d95dc437ab67c5b4a9f1d3f367baa10",
"status": "affected",
"versionType": "git"
},
{
"version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
"lessThan": "a7085c3ae43b86d4b3d1b8275e6a67f14257e3b7",
"status": "affected",
"versionType": "git"
},
{
"version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
"lessThan": "c9a40292a44e78f71258b8522655bffaf5753bdb",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"io_uring/eventfd.c"
],
"versions": [
{
"version": "6.1",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.1",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.125",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.72",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.10",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]Data
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11 May 2026 21:03Current
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