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NVD / CVE Program· CNA Linux

CVE-2024-26778: fbdev: savage: Error out if pixclock equals zero

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: 0.25% (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 04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288, 070398d32c5f3ab0e890374904ad94551c76aec4, 224453de8505aede1890f007be973925a3edf6a1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288, 070398d32c5f3ab0e890374904ad94551c76aec4, 224453de8505aede1890f007be973925a3edf6a1 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: fbdev: savage: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. Although pixclock is checked in savagefb_decode_var(), but it is not checked properly in savagefb_probe(). Fix this by checking whether pixclock is zero in the function savagefb_check_var() before info->var.pixclock is used as the divisor. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 3, 2024
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
debiandebian linux

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.270
  • linux linux kernel5.5 and later · before 5.10.211
  • linux linux kernel5.11 and later · before 5.15.150
  • linux linux kernelbefore 4.19.308
  • linux linux kernel6.2 and later · before 6.6.19
  • linux linux kernel6.7 and later · before 6.7.7
  • linux linux kernel5.16 and later · before 6.1.80
  • linux linux kernel6.8

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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 224453de8505aede1890f007be973925a3edf6a1affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ffaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 512ee6d6041e007ef5bf200c6e388e172a2c5b24affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 070398d32c5f3ab0e890374904ad94551c76aec4affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before bc3c2e58d73b28b9a8789fca84778ee165a72d13affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a9ca4e80d23474f90841251f4ac0d941fa337a01affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288affected · git
    • before 2.6.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1

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-2024-26775Apr 3, 2024 · aoe: avoid potential deadlock at set_capacity
    22Monitor
  • ← EarlierCVE-2024-26776Apr 3, 2024 · spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected
    22Monitor
  • Later →CVE-2024-26779Apr 3, 2024 · wifi: mac80211: fix race condition on enabling fast-xmit
    35Monitor

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 Linux04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288Vendor (CNA)
Linux Linux070398d32c5f3ab0e890374904ad94551c76aec4Vendor (CNA)
Linux Linux224453de8505aede1890f007be973925a3edf6a1Vendor (CNA)
Linux Linux512ee6d6041e007ef5bf200c6e388e172a2c5b24Vendor (CNA)
Linux Linux84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ffVendor (CNA)
Linux Linux8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1Vendor (CNA)
Linux Linuxa9ca4e80d23474f90841251f4ac0d941fa337a01Vendor (CNA)
Linux Linuxbc3c2e58d73b28b9a8789fca84778ee165a72d13Vendor (CNA)
debian:linux6.1.82-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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-2024-2694528 days apartcrypto: iaa - Fix nr_cpus < nr_iaa case
    33Monitor
  • CVE-2024-267740 days apartext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt
    22Monitor
  • CVE-2024-267770 days apartfbdev: sis: Error out if pixclock equals zero
    22Monitor
  • CVE-2024-2694128 days apartdrm/dp: Fix divide-by-zero regression on DP MST unplug with nouveau
    22Monitor
  • CVE-2024-2705928 days apartUSB: usb-storage: Prevent divide-by-0 error in isd200_ata_command
    22Monitor
  • CVE-2021-4708033 days apartRDMA/core: Prevent divide-by-zero error triggered by the user
    22Monitor

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

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-369 · Divide By Zero

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 (9 more)

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

All records