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NVD / CVE Program· CNA Linux

CVE-2024-46865: fou: fix initialization of grc

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.54% (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 16ff0895283058b0f96d4fe277aa25ee096f0ea8, 392f6a97fcbecc64f0c00058b2db5bb0e4b8cc3e, 4c8002277167125078e6b9b90137bdf443ebaa08.
  • Severity is disputed: the assigning authority (CNA) scores it 9.8, NVD 7.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 16ff0895283058b0f96d4fe277aa25ee096f0ea8, 392f6a97fcbecc64f0c00058b2db5bb0e4b8cc3e, 4c8002277167125078e6b9b90137bdf443ebaa08 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: fou: fix initialization of grc The grc must be initialize first. There can be a condition where if fou is NULL, goto out will be executed and grc would be used uninitialized.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Sep 27, 2024
Updated
Oct 15, 2026
EPSS
0.5% · 46th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.1
CNA · Linux
9.8
2.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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 kernel5.10.226
  • linux linux kernel5.15.167
  • linux linux kernel6.1.110
  • linux linux kernel6.10.10
  • linux linux kernel6.6.51

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

    • 231c235d2f7a66f018f172e26ffd47c363f244ef and later · before 392f6a97fcbecc64f0c00058b2db5bb0e4b8cc3eaffected · git
    • 4494bccb52ffda22ce5a1163a776d970e6229e08 and later · before 16ff0895283058b0f96d4fe277aa25ee096f0ea8affected · git
    • d7567f098f54cb53ee3cee1c82e3d0ed9698b6b3 and later · before 5d537b8d900514509622ce92330b70d2e581d409affected · git
    • 1df42be305fe478ded1ee0c1d775f4ece713483b and later · before 7ae890ee19479eeeb87724cca8430b5cb3660c74affected · git
    • c46cd6aaca81040deaea3500ba75126963294bd9 and later · before aca06c617c83295f0caa486ad608fbef7bdc11e8affected · git
    • 7e4196935069947d8b70b09c1660b67b067e75cb and later · before 4c8002277167125078e6b9b90137bdf443ebaa08affected · git
    • 5.10.226 and later · before 5.10.227affected · semver
    • 5.15.167 and later · before 5.15.168affected · semver
    • 6.1.110 and later · before 6.1.111affected · semver
    • 6.6.51 and later · before 6.6.52affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.112-16.1.112-1
Debian:13linuxbefore 6.10.11-16.10.11-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.37.16.4.0-150600.8.37.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.50.1.150600.12.22.16.4.0-150600.23.50.1.150600.12.22.1
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.39.16.4.0-150600.10.39.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.39.16.4.0-150600.10.39.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.37.16.4.0-150600.8.37.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.39.16.4.0-150600.10.39.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.37.16.4.0-150600.8.37.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.39.16.4.0-150600.10.39.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.50.16.4.0-150600.23.50.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_11before 1-150600.13.3.11-150600.13.3.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_11before 1-150600.1.3.21-150600.1.3.2
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_1before 1-150700.15.3.11-150700.15.3.1

+39

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-2024-46854Sep 27, 2024 · net: dpaa: Pad packets to ETH_ZLEN
    28Monitor
  • ← EarlierCVE-2024-46860Sep 27, 2024 · wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change
    22Monitor
  • Later →CVE-2024-46869Sep 30, 2024 · Bluetooth: btintel_pcie: Allocate memory for driver private data
    22Monitor

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 Linux16ff0895283058b0f96d4fe277aa25ee096f0ea8Vendor (CNA)
Linux Linux392f6a97fcbecc64f0c00058b2db5bb0e4b8cc3eVendor (CNA)
Linux Linux4c8002277167125078e6b9b90137bdf443ebaa08Vendor (CNA)
Linux Linux5.10.227Vendor (CNA)
Linux Linux5.15.168Vendor (CNA)
Linux Linux5d537b8d900514509622ce92330b70d2e581d409Vendor (CNA)
Linux Linux6.1.111Vendor (CNA)
Linux Linux6.10.11Vendor (CNA)
Linux Linux6.6.52Vendor (CNA)
Linux Linux7ae890ee19479eeeb87724cca8430b5cb3660c74Vendor (CNA)
Linux Linuxaca06c617c83295f0caa486ad608fbef7bdc11e8Vendor (CNA)
debian:linux6.1.112-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.50.1.150600.12.22.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-zfcpdump6.4.0-150600.23.50.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.50.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.37.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.50.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.50.1.150600.12.22.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-docs6.4.0-150600.23.50.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6Package registry (OSV)
suse:kernel-livepatch-SLE15-SP6_Update_111-150600.13.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)

+6

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-2024-5030253 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2024-4768524 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2024-5014341 days apartudf: fix uninit-value use in udf_get_fileshortad
    31Monitor
  • CVE-2024-36898120 days apartgpiolib: cdev: fix uninitialised kfifo
    31Monitor
  • CVE-2021-47553126 days apartsched/scs: Reset task stack state in bringup_cpu()
    31Monitor
  • CVE-2024-27022149 days apartfork: defer linking file vma until vma is fully initialized
    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).

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
high · data can be read
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
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-908 · Use of Uninitialized Resource

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 (8 more)

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

All records