CVE-2022-50098

Kernel crash via stale SRB timeout handling

Published Jun 18, 2025 · Updated Aug 5, 2026

Use-after-free in the Linux qla2xxx SCSI driver from 4.10 allows adjacent attackers to crash the kernel through Fibre Channel I/O timeouts. The timeout escalation path returns success without ensuring the outstanding SCSI request block is returned, leaving response processing to access a stale SRB. A malicious or compromised Fibre Channel fabric peer can stall I/O and trigger port deletion on systems using the qla2xxx HBA driver; the resulting stale access can panic the host.

CVSS severity8.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux qla2xxx SCSI driver from 4.10 allows adjacent attackers to crash the kernel through Fibre Channel I/O timeouts. The timeout escalation path returns success without ensuring the outstanding SCSI request block is returned, leaving response processing to access a stale SRB. A malicious or compromised Fibre Channel fabric peer can stall I/O and trigger port deletion on systems using the qla2xxx HBA driver; the resulting stale access can panic the host.

The record

CVE
CVE-2022-50098
Published
Jun 18, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.10
  2. Affected versionversion=d74595278f4ab192af66d9e60a9087464638beee <7dcd49c42b14717dd668fd73b503d241fdf82439
  3. Affected versionversion=d74595278f4ab192af66d9e60a9087464638beee <b70553175d0f94ebd73670bc16ade90bd7f7d76f
  4. Affected versionversion=d74595278f4ab192af66d9e60a9087464638beee <b7bae3886a30d258b5b4fee26647043d68da3661
  5. Affected versionversion=d74595278f4ab192af66d9e60a9087464638beee <c39587bc0abaf16593f7abcdf8aeec3c038c7d52

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.10; version=d74595278f4ab192af66d9e60a9087464638beee <7dcd49c42b14717dd668fd73b503d241fdf82439; version=d74595278f4ab192af66d9e60a9087464638beee <b70553175d0f94ebd73670bc16ade90bd7f7d76f; version=d74595278f4ab192af66d9e60a9087464638beee <b7bae3886a30d258b5b4fee26647043d68da3661; version=d74595278f4ab192af66d9e60a9087464638beee <c39587bc0abaf16593f7abcdf8aeec3c038c7d52

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.8Linux kernel CVE teamCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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