GHSA-3xr6-r26v-fpqm · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: io_uring/waitid: clear...
In the Linux kernel, the following vulnerability has been resolved: io_uring/waitid: clear waitid info before copying it to userspace IORING_OP_WAITID stores its result fields in struct io_waitid::info and later copies them to userspace siginfo. The prep path initializes the request arguments, but it does not initialize info itself. If the wait operation completes without reporting a child event, the common wait code can return without writing wo_info. In that case io_waitid_finish() still copies iw->info to userspace, exposing stale bytes from the reused io_kiocb command storage. Clear the result storage during prep so the io_uring path matches the regular waitid syscall, which uses a zero-initialized struct waitid_info.
Conclusion & alert: CVE-2026-46315 is rated Low Risk (6/100): low exploitation likelihood (EPSS 0.16%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.16% | +0.14% |
| 2 | 2026-06-09 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
No CVSS data in dataset for this CVE.
GHSA-3xr6-r26v-fpqm · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: io_uring/waitid: clear...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-46315 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-46315 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-46315 |
suse
|
medium | CVE-2026-46315 severity moderate: SUSE including 19 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 157 product×package rows across 28 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (28 product lines)): Known Not Affected 157. | https://www.suse.com/security/cve/CVE-2026-46315/ |
ubuntu
|
medium | CVE-2026-46315 medium priority: Ubuntu including 160 source packages (linux, linux-allwinner-5.19, …), 1440 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1038, ignored 172, released 86, not-affected 79, needed 64, pending 1. | https://ubuntu.com/security/CVE-2026-46315 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| linux | linux_kernel | >= 6.7, < 6.12.92 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.7, < 6.18.34 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.7, < 7.0.11 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.7, < 7.1 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |