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NVD / CVE Program· CNA Linux

CVE-2026-97951: scsi: target: iscsi: Fix hang for aborted WRITE_PENDING commands

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 19315262991dc983cc5c5c2ed24ff768abbf9339, 37f7f54d06c6100511979d6e9c1222b404e3f006, 638cf7c0cf64d5bb5704c3a78b54ae6602f69a32; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 19315262991dc983cc5c5c2ed24ff768abbf9339, 37f7f54d06c6100511979d6e9c1222b404e3f006, 638cf7c0cf64d5bb5704c3a78b54ae6602f69a32; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix hang for aborted WRITE_PENDING commands When a LUN_RESET aborts a WRITE command that is in the TRANSPORT_WRITE_PENDING state, the target core sets CMD_T_ABORTED and waits for the frontend to finish processing. If the initiator subsequently sends the remaining dataout PDUs, __iscsit_check_dataout_hdr() catches the payload, stops the dataout timer if the sequence is final and finally dumps the data. However, the iSCSI target doesn't trigger the completion process for these aborted commands. Because of this, the abort path hangs indefinitely in target_put_cmd_and_wait(), leading to a deadlocked target worker thread. Fix this by explicitly calling target_complete_cmd() when the final dataout PDU is received for an aborted WRITE command. target_complete_cmd() detects the CMD_T_ABORTED flag and cleanly routes the command into target_abort_work, allowing the abort completion to successfully unblock.

—No exploit Fix available
Published
Sep 25, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.0affected
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before b070c8b4b237d55bdac13da3c5a994491177b312affected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before 19315262991dc983cc5c5c2ed24ff768abbf9339affected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before f806f54ae3de780b8f4139baefc95b81c599cf9faffected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before 9c777f8e0cb0486fdf16db8ffea32e562a31e85baffected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before 638cf7c0cf64d5bb5704c3a78b54ae6602f69a32affected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before f6f6351e98c77c27b51763ef52deb2efe4b46ac7affected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before 37f7f54d06c6100511979d6e9c1222b404e3f006affected · git
    • 2c9fa49e100f962af988f1c0529231bf14905cda and later · before d5869dae5080e976d4b03cc33eb7ceb527f242bfaffected · git
    • before 5.0not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.7-17.2.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-97949Sep 25, 2026 · configfs: unhash the dentry before dropping the item in rmdir
    0Monitor
  • ← EarlierCVE-2026-97950Sep 25, 2026 · configfs: pin the symlink target's dirent instead of chasing ->ci_dentry
    0Monitor
  • Later →CVE-2026-97952Sep 25, 2026 · sunvdc: unmap LDC cookies when the descriptor send fails
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux19315262991dc983cc5c5c2ed24ff768abbf9339Vendor (CNA)
Linux Linux37f7f54d06c6100511979d6e9c1222b404e3f006Vendor (CNA)
Linux Linux638cf7c0cf64d5bb5704c3a78b54ae6602f69a32Vendor (CNA)
Linux Linux9c777f8e0cb0486fdf16db8ffea32e562a31e85bVendor (CNA)
Linux Linuxb070c8b4b237d55bdac13da3c5a994491177b312Vendor (CNA)
Linux Linuxd5869dae5080e976d4b03cc33eb7ceb527f242bfVendor (CNA)
Linux Linuxf6f6351e98c77c27b51763ef52deb2efe4b46ac7Vendor (CNA)
Linux Linuxf806f54ae3de780b8f4139baefc95b81c599cf9fVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records