CVE-2024-53226Network attack vector

System crash via NULL sg_offset dereference

Published Dec 27, 2024 · Updated Aug 5, 2026

NULL pointer dereference in the HNS RoCE driver in Linux allows remote attackers to crash the kernel through RDMA operations. hns_roce_map_mr_sg() dereferences the caller-supplied sg_offset pointer during an alignment test without first checking whether it is NULL. HNS RoCE hardware and a vulnerable RDMA upper-layer path must be active; an unauthenticated rtrs-srv connection can cause a kernel oops or panic, interrupting the host.

CVSS severity7.5
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the HNS RoCE driver in Linux allows remote attackers to crash the kernel through RDMA operations. hns_roce_map_mr_sg() dereferences the caller-supplied sg_offset pointer during an alignment test without first checking whether it is NULL. HNS RoCE hardware and a vulnerable RDMA upper-layer path must be active; an unauthenticated rtrs-srv connection can cause a kernel oops or panic, interrupting the host.

The record

CVE
CVE-2024-53226
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3c301b8a046b57e3de14c6fc669d81dcb71bb5b5 <35f5b68f63aac61d30ce0b0c6beb09b8845a3e65
  2. Affected versionversion=4d480e45cb7fffb9d9b49924469c1f458068080a <6b0d7d6e6883d0ec70cd7b5a02c47c003d5defe7
  3. Affected versionversion=5.10.224 <5.10.231
  4. Affected versionversion=5.15.165 <5.15.174
  5. Affected versionversion=5a13652ac34be9b60feec89835763574825a8905 <52617e76f4963644db71dc0a17e998654dc0c7f4
  6. Affected versionversion=6.10.3 <6.11
  7. Affected versionversion=6.11
  8. Affected versionversion=6.1.103 <6.1.120
  9. Affected versionversion=6.6.44 <6.6.64
  10. Affected versionversion=d387d4b54eb84208bd4ca13572e106851d0a0819 <6b526d17eed850352d880b93b9bf20b93006bd92
  11. Affected versionversion=d387d4b54eb84208bd4ca13572e106851d0a0819 <71becb0e9df78a8d43dfd0efcef18c830a0af477
  12. Affected versionversion=d387d4b54eb84208bd4ca13572e106851d0a0819 <8c269bb2cc666ca580271e1a8136c63ac9162e1e
  13. Affected versionversion=ecdf900a5a3372bc0208e0701a116f112eb6039c
  14. Affected versionversion=edc2dee07ab4ae2188b9780c453a64032162a5a0 <bd715e191d444992d6ed124f15856da5c1cae2de

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3c301b8a046b57e3de14c6fc669d81dcb71bb5b5 <35f5b68f63aac61d30ce0b0c6beb09b8845a3e65; version=4d480e45cb7fffb9d9b49924469c1f458068080a <6b0d7d6e6883d0ec70cd7b5a02c47c003d5defe7; version=5.10.224 <5.10.231; version=5.15.165 <5.15.174; version=5a13652ac34be9b60feec89835763574825a8905 <52617e76f4963644db71dc0a17e998654dc0c7f4; version=6.10.3 <6.11; version=6.11; version=6.1.103 <6.1.120; version=6.6.44 <6.6.64; version=d387d4b54eb84208bd4ca13572e106851d0a0819 <6b526d17eed850352d880b93b9bf20b93006bd92; version=d387d4b54eb84208bd4ca13572e106851d0a0819 <71becb0e9df78a8d43dfd0efcef18c830a0af477; version=d387d4b54eb84208bd4ca13572e106851d0a0819 <8c269bb2cc666ca580271e1a8136c63ac9162e1e; version=ecdf900a5a3372bc0208e0701a116f112eb6039c; version=edc2dee07ab4ae2188b9780c453a64032162a5a0 <bd715e191d444992d6ed124f15856da5c1cae2de

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5Linux CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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