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NVD / CVE Program· CNA Linux

CVE-2022-48987: media: v4l2-dv-timings.c: fix too strict blanking sanity checks

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: 0.24% (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 0d73b49c4037199472b29574ae21c21aef493971, 2572ab14b73aa45b6ae7e4c089ccf119fed5cf89, 32f01f0306a98629508f84d7ef0d1d037bc274a2.

Low priority for now. Upgrade to Linux Linux 0d73b49c4037199472b29574ae21c21aef493971, 2572ab14b73aa45b6ae7e4c089ccf119fed5cf89, 32f01f0306a98629508f84d7ef0d1d037bc274a2 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: media: v4l2-dv-timings.c: fix too strict blanking sanity checks Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values. But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields. And that can fail with these checks. So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that. That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 16th 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.

Follow CVE-2022-48987

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 kernel4.9.332 and later · before 4.9.336
  • linux linux kernel4.14.298 and later · before 4.14.302
  • linux linux kernel4.19.264 and later · before 4.19.269
  • linux linux kernel5.4.226 and later · before 5.4.227
  • linux linux kernel5.10.153 and later · before 5.10.159
  • linux linux kernel5.15.77 and later · before 5.15.83
  • linux linux kernel6.0.7 and later · before 6.0.13

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

    • 15ded23db134da975b49ea99770de0346c193b24 and later · before 0d73b49c4037199472b29574ae21c21aef493971affected · git
    • 3d43b2b8a3cdadd6cef9ac8ef5d156b6214a01c8 and later · before a2b56627c0d13009e02f6f2c0206c0451ed19a0eaffected · git
    • 9cf9211635b68e8e0c8cb88d43ca7dc83e4632aa and later · before 2572ab14b73aa45b6ae7e4c089ccf119fed5cf89affected · git
    • b4a3a01762ae072c7f6ff2ff53b5019761288346 and later · before 4afc77068e36cee45b39d4fdc7513de26980f72caffected · git
    • 683015ae163481457a16fad2317af66360dc4762 and later · before 32f01f0306a98629508f84d7ef0d1d037bc274a2affected · git
    • 491c0959f01d87bcbd5a1498bc70e0a3382c65a8 and later · before 6fb8bc29bfa80707994a63cc97e2f9920e0b0608affected · git
    • dc7276c3f6ca008be1faf531f84b49906c9bcf7f and later · before d3d14cdf1c7ae2caa3e999bae95ba99e955fb7c3affected · git
    • 4b6d66a45ed34a15721cb9e11492fa1a24bc83df and later · before 5eef2141776da02772c44ec406d6871a790761eeaffected · git
    • 4.9.332 and later · before 4.9.336affected · semver
    • 4.14.298 and later · before 4.14.302affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2022-48985Oct 21, 2024 · net: mana: Fix race on per-CQ variable napi work_done
    18Monitor
  • ← EarlierCVE-2022-48986Oct 21, 2024 · mm/gup: fix gup_pud_range() for dax
    22Monitor
  • Later →CVE-2022-48988Oct 21, 2024 · memcg: fix possible use-after-free in memcg_write_event_control()
    28Monitor

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 Linux0d73b49c4037199472b29574ae21c21aef493971Vendor (CNA)
Linux Linux2572ab14b73aa45b6ae7e4c089ccf119fed5cf89Vendor (CNA)
Linux Linux32f01f0306a98629508f84d7ef0d1d037bc274a2Vendor (CNA)
Linux Linux4.14.302Vendor (CNA)
Linux Linux4.19.269Vendor (CNA)
Linux Linux4.9.336Vendor (CNA)
Linux Linux4afc77068e36cee45b39d4fdc7513de26980f72cVendor (CNA)
Linux Linux5.10.159Vendor (CNA)
Linux Linux5.15.83Vendor (CNA)
Linux Linux5.4.227Vendor (CNA)
Linux Linux5eef2141776da02772c44ec406d6871a790761eeVendor (CNA)
Linux Linux6.0.13Vendor (CNA)
Linux Linux6fb8bc29bfa80707994a63cc97e2f9920e0b0608Vendor (CNA)
Linux Linuxa2b56627c0d13009e02f6f2c0206c0451ed19a0eVendor (CNA)
Linux Linuxd3d14cdf1c7ae2caa3e999bae95ba99e955fb7c3Vendor (CNA)
debian:linux6.1.4-1 · 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.

  • CVE-2026-23457529 days apartnetfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp()
    34Monitor
  • CVE-2022-490300 days apartlibbpf: Handle size overflow for ringbuf mmap
    31Monitor
  • CVE-2024-4213683 days apartcdrom: rearrange last_media_change check to avoid unintentional overflow
    31Monitor
  • CVE-2022-4883797 days apartusb: gadget: rndis: prevent integer overflow in rndis_set_response()
    31Monitor
  • CVE-2024-40994101 days apartptp: fix integer overflow in max_vclocks_store
    31Monitor
  • CVE-2024-41000101 days apartblock/ioctl: prefer different overflow check
    31Monitor

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-190 · Integer Overflow or Wraparound

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.

ATT&CK techniques

—

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