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NVD / CVE Program· CNA Linux

CVE-2024-42244: USB: serial: mos7840: fix crash on resume

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: 0.22% (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 1094ed500987e67a9d18b0f95e1812f1cc720856, 553e67dec846323b5575e78a776cf594c13f98c4, 5ae6a64f18211851c8df6b4221381c438b9a7348.

Low priority for now. Upgrade to Linux Linux 1094ed500987e67a9d18b0f95e1812f1cc720856, 553e67dec846323b5575e78a776cf594c13f98c4, 5ae6a64f18211851c8df6b4221381c438b9a7348 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: USB: serial: mos7840: fix crash on resume Since commit c49cfa917025 ("USB: serial: use generic method if no alternative is provided in usb serial layer"), USB serial core calls the generic resume implementation when the driver has not provided one. This can trigger a crash on resume with mos7840 since support for multiple read URBs was added back in 2011. Specifically, both port read URBs are now submitted on resume for open ports, but the context pointer of the second URB is left set to the core rather than mos7840 port structure. Fix this by implementing dedicated suspend and resume functions for mos7840. Tested with Delock 87414 USB 2.0 to 4x serial adapter. [ johan: analyse crash and rewrite commit message; set busy flag on resume; drop bulk-in check; drop unnecessary usb_kill_urb() ]

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 7, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 13th percentile
CWE
—

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

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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

Affected versions

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

  • linux linux kernel3.3 and later · before 5.10.222
  • linux linux kernel5.11 and later · before 5.15.163
  • linux linux kernel5.16 and later · before 6.1.100
  • linux linux kernel6.2 and later · before 6.6.41
  • linux linux kernel6.7 and later · before 6.9.10

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

    • 3.3affected
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before 932a86a711c722b45ed47ba2103adca34d225b33affected · git
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4affected · git
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before 1094ed500987e67a9d18b0f95e1812f1cc720856affected · git
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before 5ae6a64f18211851c8df6b4221381c438b9a7348affected · git
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before 553e67dec846323b5575e78a776cf594c13f98c4affected · git
    • d83b405383c965498923f3561c3321e2b5df5727 and later · before c15a688e49987385baa8804bf65d570e362f8576affected · git
    • before 3.3not affected · semver
    • 5.10.222 and later · up to and including 5.10.*not affected · semver
    • 5.15.163 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.4.0-503.15.1.el9_57.4.0-503.15.1.el9_5
AlmaLinux:9kernelbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64kbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debugbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-develbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-cross-headersbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-debugbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-debug-corebefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-debug-develbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-503.15.1.el9_55.14.0-503.15.1.el9_5

+96

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-2024-42240Aug 7, 2024 · x86/bhi: Avoid warning in #DB handler due to BHI mitigation
    22Monitor
  • ← EarlierCVE-2024-42242Aug 7, 2024 · mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE
    22Monitor
  • Later →CVE-2024-42245Aug 7, 2024 · Revert "sched/fair: Make sure to try to detach at least one movable task"
    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 Linux1094ed500987e67a9d18b0f95e1812f1cc720856Vendor (CNA)
Linux Linux553e67dec846323b5575e78a776cf594c13f98c4Vendor (CNA)
Linux Linux5ae6a64f18211851c8df6b4221381c438b9a7348Vendor (CNA)
Linux Linux932a86a711c722b45ed47ba2103adca34d225b33Vendor (CNA)
Linux Linuxb14aa5673e0a8077ff4b74f0bb260735e7d5e6a4Vendor (CNA)
Linux Linuxc15a688e49987385baa8804bf65d570e362f8576Vendor (CNA)
almalinux:bpftool7.4.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-503.15.1.el9_5 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.106-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.4.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-503.15.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+1

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.

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)

—

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 (6 more)

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

All records