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CVE-2026-53124: In the Linux kernel, the following vulnerability has been resolved: ublk: reset per-IO canceled flag on each

26
Routine
MEDIUM 5.5WATCHLISTUPGRADE

CVE-2026-53124 is a medium-severity flaw (CVSS 5.5) affecting linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the Linux kernel, the following vulnerability has been resolved: ublk: reset per-IO canceled flag on each fetch If a ublk server starts recovering devices but dies before issuing fetch commands for all IOs, cancellation of the fetch commands that were successfully issued may never complete. This is because the per-IO canceled flag can remain set even after the fetch for that IO has been submitted - the per-IO canceled flags for all IOs in a

Why this priority

  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score5.5 (Medium)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.2% (top 95%)
CISA exploited listNo
Published2026-06-24
Last modified2026-10-15
Publisher (CNA): kernel.org · Vendor: linux

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Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

linux linux kernel UPGRADE
Affected: >= 6.14.6 and < 6.15 · >= 6.15.1 and < 7.0.10 · 6.15 · 6.15 rc3 · 6.15 rc4 · 6.15 rc5 · 6.15 rc6 · 6.15 rc7
Fixed in: 6.15, 7.0.10
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-53124?

linux kernel: upgrade to 6.15, 7.0.10. Exact commands for each OS are on this page.

Is CVE-2026-53124 being exploited?

CVE-2026-53124 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-53124 affect?

CVE-2026-53124 affects linux kernel. Severity is medium (CVSS 5.5). In the Linux kernel, the following vulnerability has been resolved: ublk: reset per-IO canceled flag on each fetch If a ublk server starts recovering devices but dies before issuing fetch commands for all IOs, cancellation of the fetch co

How urgent is CVE-2026-53124?

Priority 26/100. On your watchlist

Software pages

Linux kernel vulnerabilities · iOS vulnerabilities

Related CVEs

References

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