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NVD / CVE Program· CNA Linux

CVE-2024-36476: RDMA/rtrs: Ensure 'ib_sge list' is accessible

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: 0.64% (FIRST EPSS); higher than 50.9% of all records.
  • 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 143378075904e78b3b2a810099bcc3b3d82d762f, 32e1e748a85bd52b20b3857d80fd166d22fa455a, 6ffb5c1885195ae5211a12b4acd2d51843ca41b0; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1.
  • Severity is disputed: the assigning authority (CNA) scores it 9.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 143378075904e78b3b2a810099bcc3b3d82d762f, 32e1e748a85bd52b20b3857d80fd166d22fa455a, 6ffb5c1885195ae5211a12b4acd2d51843ca41b0; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1 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: RDMA/rtrs: Ensure 'ib_sge list' is accessible Move the declaration of the 'ib_sge list' variable outside the 'always_invalidate' block to ensure it remains accessible for use throughout the function. Previously, 'ib_sge list' was declared within the 'always_invalidate' block, limiting its accessibility, then caused a 'BUG: kernel NULL pointer dereference'[1]. ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2d0 ? search_module_extables+0x19/0x60 ? search_bpf_extables+0x5f/0x80 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? memcpy_orig+0xd5/0x140 rxe_mr_copy+0x1c3/0x200 [rdma_rxe] ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe] copy_data+0xa5/0x230 [rdma_rxe] rxe_requester+0xd9b/0xf70 [rdma_rxe] ? finish_task_switch.isra.0+0x99/0x2e0 rxe_sender+0x13/0x40 [rdma_rxe] do_task+0x68/0x1e0 [rdma_rxe] process_one_work+0x177/0x330 worker_thread+0x252/0x390 ? __pfx_worker_thread+0x10/0x10 This change ensures the variable is available for subsequent operations that require it. [1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jan 15, 2025
Updated
Aug 5, 2026
EPSS
0.6% · 50th 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 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
9.8
4.3 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

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  • when exploit code appears or is weaponized
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  • 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 kernel5.8 and later · before 5.10.233
  • linux linux kernel5.11 and later · before 5.15.176
  • linux linux kernel5.16 and later · before 6.1.124
  • linux linux kernel6.2 and later · before 6.6.70
  • linux linux kernel6.7 and later · before 6.12.9
  • linux linux kernel6.13

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

    • 5.8affected
    • 9cb837480424e78ed585376f944088246685aec3 and later · before 7eaa71f56a6f7ab87957213472dc6d4055862722affected · git
    • 9cb837480424e78ed585376f944088246685aec3 and later · before 143378075904e78b3b2a810099bcc3b3d82d762faffected · git
    • 9cb837480424e78ed585376f944088246685aec3 and later · before 32e1e748a85bd52b20b3857d80fd166d22fa455aaffected · git
    • 9cb837480424e78ed585376f944088246685aec3 and later · before b238f61cc394d5fef27b26d7d9aa383ebfddabb0affected · git
    • 9cb837480424e78ed585376f944088246685aec3 and later · before 6ffb5c1885195ae5211a12b4acd2d51843ca41b0affected · git
    • 9cb837480424e78ed585376f944088246685aec3 and later · before fb514b31395946022f13a08e06a435f53cf9e8b3affected · git
    • before 5.8not affected · semver
    • 5.10.233 and later · up to and including 5.10.*not affected · semver
    • 5.15.176 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
Debian:11linuxbefore 5.10.234-15.10.234-1
Debian:11linux-6.1before 6.1.128-1~deb11u16.1.128-1~deb11u1
Debian:12linuxbefore 6.1.124-16.1.124-1
Debian:13linuxbefore 6.12.9-16.12.9-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.26.16.4.0-150600.8.26.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.38.1.150600.12.16.26.4.0-150600.23.38.1.150600.12.16.2
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.26.16.4.0-150600.10.26.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.26.16.4.0-150600.10.26.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.26.16.4.0-150600.8.26.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.26.16.4.0-150600.10.26.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.26.16.4.0-150600.8.26.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.26.16.4.0-150600.10.26.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.38.16.4.0-150600.23.38.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_8before 1-150600.13.3.21-150600.13.3.2

+25

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-2024-57849Jan 11, 2025 · s390/cpum_sf: Handle CPU hotplug remove during sampling
    31Monitor
  • ← EarlierCVE-2024-57875Jan 11, 2025 · block: RCU protect disk->conv_zones_bitmap
    22Monitor
  • Later →CVE-2024-39282Jan 15, 2025 · net: wwan: t7xx: Fix FSM command timeout issue
    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 Linux143378075904e78b3b2a810099bcc3b3d82d762fVendor (CNA)
Linux Linux32e1e748a85bd52b20b3857d80fd166d22fa455aVendor (CNA)
Linux Linux6ffb5c1885195ae5211a12b4acd2d51843ca41b0Vendor (CNA)
Linux Linux7eaa71f56a6f7ab87957213472dc6d4055862722Vendor (CNA)
Linux Linuxb238f61cc394d5fef27b26d7d9aa383ebfddabb0Vendor (CNA)
Linux Linuxfb514b31395946022f13a08e06a435f53cf9e8b3Vendor (CNA)
azl3 kernel 6.6.64.2-9 on Azure Linux 3.06.6.76.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.76.1-1 on Azure Linux 3.06.6.76.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL-Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.176.3-1 on CBL Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.124-1 · Debian:12Package registry (OSV)
debian:linux-6.16.1.128-1~deb11u1 · Debian:11Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.26.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.38.1.150600.12.16.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.26.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.26.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.38.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.26.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-coco6.4.0-15061.12.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-coco_debug6.4.0-15061.12.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.38.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)

+8

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)

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 (7 more)

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

All records