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NVD / CVE Program· CNA Linux

CVE-2026-90267: scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails

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 05bc68669549bfddfdeef2fd119855cab3e9615a, 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d, 710a2448a06a8215ba8acb4a2791954800f7db0a.

Low priority for now. Upgrade to Linux Linux 05bc68669549bfddfdeef2fd119855cab3e9615a, 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d, 710a2448a06a8215ba8acb4a2791954800f7db0a 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: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails sd_set_special_bvec() allocates a special payload page for UNMAP and WRITE SAME commands. If scsi_alloc_sgtables() fails afterward in sd_setup_unmap_cmnd() or sd_setup_write_same{10,16}_cmnd(), the SCSI midlayer does not call uninit_command() because RQF_DONTPREP is not set yet, leaking the page. Call sd_uninit_command() on error, and clear RQF_SPECIAL_PAYLOAD after freeing the page.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 6th 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

    • 4.12affected
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before 05bc68669549bfddfdeef2fd119855cab3e9615aaffected · git
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before 710a2448a06a8215ba8acb4a2791954800f7db0aaffected · git
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before 744a65e113094756e6c1cfba9ff1bf4247cb68d4affected · git
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before e90f746f4ca3896ca560e820b7b6b0a467026938affected · git
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790daffected · git
    • 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and later · before bb31844d88b77138b67aa20c3600203baff40140affected · git
    • before 4.12not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.115-26.12.115-2
Debian:14linuxbefore 7.2.6-17.2.6-1
openSUSE:Tumbleweedkernel-sourcebefore 7.2.8-1.17.2.8-1.1

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-2026-90265Sep 17, 2026 · btrfs: defrag: fix deadlock between defrag and delalloc space reservation
    0Monitor
  • ← EarlierCVE-2026-90266Sep 17, 2026 · btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge
    0Monitor
  • Later →CVE-2026-90268Sep 17, 2026 · scsi: sd: Fix error handling in sd_probe() after large pool creation failure
    32Monitor

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 Linux05bc68669549bfddfdeef2fd119855cab3e9615aVendor (CNA)
Linux Linux5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790dVendor (CNA)
Linux Linux710a2448a06a8215ba8acb4a2791954800f7db0aVendor (CNA)
Linux Linux744a65e113094756e6c1cfba9ff1bf4247cb68d4Vendor (CNA)
Linux Linuxbb31844d88b77138b67aa20c3600203baff40140Vendor (CNA)
Linux Linuxe90f746f4ca3896ca560e820b7b6b0a467026938Vendor (CNA)
debian:linux6.12.115-2 · Debian:13Package registry (OSV)
debian:linux7.2.6-1 · Debian:14Package registry (OSV)
opensuse:kernel-source7.2.8-1.1 · openSUSE:TumbleweedPackage 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).

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 (5 more)

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

All records