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CVE-2024-35902· NVD / CVE Program· CNA Linux

net/rds: fix possible cp null dereference

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 4.19.312, 5.10.215, 5.15.154.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 4.19.312, 5.10.215, 5.15.154 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: net/rds: fix possible cp null dereference cp might be null, calling cp->cp_conn would produce null dereference [Simon Horman adds:] Analysis: * cp is a parameter of __rds_rdma_map and is not reassigned. * The following call-sites pass a NULL cp argument to __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Prior to the code above, the following assumes that cp may be NULL (which is indicative, but could itself be unnecessary) trans_private = rs->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * The code modified by this patch is guarded by IS_ERR(trans_private), where trans_private is assigned as per the previous point in this analysis. The only implementation of get_mr that I could locate is rds_ib_get_mr() which can return an ERR_PTR if the conn (4th) argument is NULL. * ret is set to PTR_ERR(trans_private). rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL. Thus ret may be -ENODEV in which case the code in question will execute. Conclusion: * cp may be NULL at the point where this patch adds a check; this patch does seem to address a possible bug

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 19, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 12th 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 kernel5.4.272 and later · before 5.7.274
  • linux linux kernel5.10.213 and later · before 5.10.215
  • linux linux kernel5.15.152 and later · before 5.15.154
  • linux linux kernel4.19.310 and later · before 4.19.312
  • linux linux kernel6.6.22 and later · before 6.6.26
  • linux linux kernel6.7.10 and later · before 6.8.5
  • linux linux kernel6.1.82 and later · before 6.1.85
  • linux linux kernel6.9

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

    • 907761307469adecb02461a14120e9a1812a5fb1, 6.8affected
    • 786854141057751bc08eb26f1b02e97c1631c8f4 and later · before d275de8ea7be3a453629fddae41d4156762e814caffected · git
    • 997efea2bf3a4adb96c306b9ad6a91442237bf5b and later · before bcd46782e2ec3825d10c1552fcb674d491cc09f9affected · git
    • 9dfc15a10dfd44f8ff7f27488651cb5be6af83c2 and later · before cfb786b03b03c5ff38882bee38525eb9987e4d14affected · git
    • b562ebe21ed9adcf42242797dd6cb75beef12bf0 and later · before d49fac38479bfdaec52b3ea274d290c47a294029affected · git
    • 998fd719e6d6468b930ac0c44552ea9ff8b07b80 and later · before cbaac2e5488ed54833897264a5ffb2a341a9f196affected · git
    • 2b505d05280739ce31d5708da840f42df827cb85 and later · before 92309bed3c5fbe2ccd4c45056efd42edbd06162daffected · git
    • c055fc00c07be1f0df7375ab0036cebd1106ed38 and later · before 6794090c742008c53b344b35b021d4a3093dc50aaffected · git
    • c055fc00c07be1f0df7375ab0036cebd1106ed38 and later · before 62fc3357e079a07a22465b9b6ef71bb6ea75ee4baffected · git
    • 4.19.310 and later · before 4.19.312affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.85-16.1.85-1
Debian:13linuxbefore 6.8.9-16.8.9-1

Same product

linux: all records

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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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 Linux4.19.312Vendor (CNA)
Linux Linux5.10.215Vendor (CNA)
Linux Linux5.15.154Vendor (CNA)
Linux Linux5.4.274Vendor (CNA)
Linux Linux6.1.85Vendor (CNA)
Linux Linux6.6.26Vendor (CNA)
Linux Linux6.8Vendor (CNA)
Linux Linux62fc3357e079a07a22465b9b6ef71bb6ea75ee4bVendor (CNA)
Linux Linux6794090c742008c53b344b35b021d4a3093dc50aVendor (CNA)
Linux Linux92309bed3c5fbe2ccd4c45056efd42edbd06162dVendor (CNA)
Linux Linuxbcd46782e2ec3825d10c1552fcb674d491cc09f9Vendor (CNA)
Linux Linuxcbaac2e5488ed54833897264a5ffb2a341a9f196Vendor (CNA)
Linux Linuxcfb786b03b03c5ff38882bee38525eb9987e4d14Vendor (CNA)
Linux Linuxd275de8ea7be3a453629fddae41d4156762e814cVendor (CNA)
Linux Linuxd49fac38479bfdaec52b3ea274d290c47a294029Vendor (CNA)
debian:linux6.1.85-1 · 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.

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).

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-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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (10 more)

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

All records