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NVD / CVE Program· CNA Linux

CVE-2024-35851: Bluetooth: qca: fix NULL-deref on non-serdev suspend

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.23% (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 52f9041deaca3fc5c40ef3b9cb943993ec7d2489, 6b47cdeb786c38e4174319218db3fa6d7b4bba88, 73e87c0a49fda31d7b589edccf4c72e924411371.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 52f9041deaca3fc5c40ef3b9cb943993ec7d2489, 6b47cdeb786c38e4174319218db3fa6d7b4bba88, 73e87c0a49fda31d7b589edccf4c72e924411371 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: Bluetooth: qca: fix NULL-deref on non-serdev suspend Qualcomm ROME controllers can be registered from the Bluetooth line discipline and in this case the HCI UART serdev pointer is NULL. Add the missing sanity check to prevent a NULL-pointer dereference when wakeup() is called for a non-serdev controller during suspend. Just return true for now to restore the original behaviour and address the crash with pre-6.2 kernels, which do not have commit e9b3e5b8c657 ("Bluetooth: hci_qca: only assign wakeup with serial port support") that causes the crash to happen already at setup() time.

Published
May 17, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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-2024-35851

When you'll hear from us

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  • 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

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

    • 5.13affected
    • c1a74160eaf1ac218733b371158432b52601beff and later · before 52f9041deaca3fc5c40ef3b9cb943993ec7d2489affected · git
    • c1a74160eaf1ac218733b371158432b52601beff and later · before e60502b907be350c518819297b565007a94c706daffected · git
    • c1a74160eaf1ac218733b371158432b52601beff and later · before 6b47cdeb786c38e4174319218db3fa6d7b4bba88affected · git
    • c1a74160eaf1ac218733b371158432b52601beff and later · before b64092d2f108f0cd1d7fd7e176f5fb2a67a2f189affected · git
    • c1a74160eaf1ac218733b371158432b52601beff and later · before 73e87c0a49fda31d7b589edccf4c72e924411371affected · git
    • before 5.13not affected · semver
    • 5.15.158 and later · up to and including 5.15.*not affected · semver
    • 6.1.90 and later · up to and including 6.1.*not affected · semver
    • 6.6.30 and later · up to and including 6.6.*not affected · semver
Affected versions · NVD (5)

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

  • linux linux kernel5.13 and later · before 5.15.158
  • linux linux kernel5.16 and later · before 6.1.90
  • linux linux kernel6.2 and later · before 6.6.30
  • linux linux kernel6.7 and later · before 6.8.9
  • linux linux kernel6.9

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.90-16.1.90-1
Debian:13linuxbefore 6.8.9-16.8.9-1

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-2024-35848May 17, 2024 · eeprom: at24: fix memory corruption race condition
    18Monitor
  • ← EarlierCVE-2024-35850May 17, 2024 · Bluetooth: qca: fix NULL-deref on non-serdev setup
    22Monitor
  • Later →CVE-2024-35852May 17, 2024 · mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work
    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 Linux52f9041deaca3fc5c40ef3b9cb943993ec7d2489Vendor (CNA)
Linux Linux6b47cdeb786c38e4174319218db3fa6d7b4bba88Vendor (CNA)
Linux Linux73e87c0a49fda31d7b589edccf4c72e924411371Vendor (CNA)
Linux Linuxb64092d2f108f0cd1d7fd7e176f5fb2a67a2f189Vendor (CNA)
Linux Linuxe60502b907be350c518819297b565007a94c706dVendor (CNA)
debian:linux6.1.90-1 · 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.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (4 more)

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

All records