Public vulnerability disclosure

CVE-2022-49791

io_uring: fix multishot accept request leaks

published

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guarantee that the request is executed as a multishot from the polling path. Fortunately for us, if the code thinks it's multishot issue when it's not, it can only ask to skip completion so leaking the request. Use issue_flags to mark multipoll issues.

Technical severityUnscoredNo score in collected sources
Published2025-05-01Source updated 2026-11-05
Collected2026-11-052 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Linux
Linux
≥ 390ed29b5e425ba00da2b6113b74a14949f71b02; < 0e4626de856ef8f25ecd9c716e76d4f95ce95639 (affected, git)
≥ 390ed29b5e425ba00da2b6113b74a14949f71b02; < 91482864768a874c4290ef93b84a78f4f1dac51b (affected, git)
Other versions: unaffected
CNA: Linux
Linux
Linux
5.19 (affected)
≥ 0; < 5.19 (unaffected, semver)
≥ 6.0.10; ≤ 6.0.* (unaffected, semver)
≥ 6.1; ≤ * (unaffected, original_commit_for_fix)
Other versions: affected
CNA: Linux

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

No CVSS assessment reported. An unscored record is not a low-severity determination.

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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