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CVE-2022-49376· NVD / CVE Program· CNA Linux

scsi: sd: Fix potential NULL pointer dereference

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.26% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5, 0fcb0b131cc90c8f523a293d84c58d0c7273c96f, 3733439593ad12f7b54ae35c273ea6f15d692de3.

Low priority for now. Upgrade to Linux Linux 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5, 0fcb0b131cc90c8f523a293d84c58d0c7273c96f, 3733439593ad12f7b54ae35c273ea6f15d692de3 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 potential NULL pointer dereference If sd_probe() sees an early error before sdkp->device is initialized, sd_zbc_release_disk() is called. This causes a NULL pointer dereference when sd_is_zoned() is called inside that function. Avoid this by removing the call to sd_zbc_release_disk() in sd_probe() error path. This change is safe and does not result in zone information memory leakage because the zone information for a zoned disk is allocated only when sd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set, resulting in sd_disk_release() being called when needed to cleanup a disk zone information using sd_zbc_release_disk().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 17th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.10 and later · before 5.10.122
  • linux linux kernel5.11 and later · before 5.15.47
  • linux linux kernel5.16 and later · before 5.17.15
  • linux linux kernel5.18 and later · before 5.18.4

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

    • 4.10affected
    • 89d9475610771b5e5fe1879075f0fc9ba6e3755f and later · before c1f0187025905e9981000d44a92e159468b561a8affected · git
    • 89d9475610771b5e5fe1879075f0fc9ba6e3755f and later · before 0fcb0b131cc90c8f523a293d84c58d0c7273c96faffected · git
    • 89d9475610771b5e5fe1879075f0fc9ba6e3755f and later · before 78f8e96df06e2d04d82d4071c299b59d28744f47affected · git
    • 89d9475610771b5e5fe1879075f0fc9ba6e3755f and later · before 3733439593ad12f7b54ae35c273ea6f15d692de3affected · git
    • 89d9475610771b5e5fe1879075f0fc9ba6e3755f and later · before 05fbde3a77a4f1d62e4c4428f384288c1f1a0be5affected · git
    • before 4.10not affected · semver
    • 5.10.122 and later · up to and including 5.10.*not affected · semver
    • 5.15.47 and later · up to and including 5.15.*not affected · semver
    • 5.17.15 and later · up to and including 5.17.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49374Feb 26, 2025 · tipc: check attribute length for bearer name
    22Monitor
  • ← EarlierCVE-2022-49375Feb 26, 2025 · rtc: mt6397: check return value after calling platform_get_resource()
    22Monitor
  • Later →CVE-2022-49377Feb 26, 2025 · blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
    31Monitor

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 Linux05fbde3a77a4f1d62e4c4428f384288c1f1a0be5Vendor (CNA)
Linux Linux0fcb0b131cc90c8f523a293d84c58d0c7273c96fVendor (CNA)
Linux Linux3733439593ad12f7b54ae35c273ea6f15d692de3Vendor (CNA)
Linux Linux78f8e96df06e2d04d82d4071c299b59d28744f47Vendor (CNA)
Linux Linuxc1f0187025905e9981000d44a92e159468b561a8Vendor (CNA)
debian:linux5.18.5-1 · 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).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

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 (4 more)

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

All records