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NVD / CVE Program· CNA Linux

CVE-2024-38598: md: fix resync softlockup when bitmap size is less than array size

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: 0.19% (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 3f5b73ef8fd6268cbc968b308d8eafe56fda97f3, 4.19.316, 43771597feba89a839c5f893716df88ae5c237ce.

Low priority for now. Upgrade to Linux Linux 3f5b73ef8fd6268cbc968b308d8eafe56fda97f3, 4.19.316, 43771597feba89a839c5f893716df88ae5c237ce 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: md: fix resync softlockup when bitmap size is less than array size Is is reported that for dm-raid10, lvextend + lvchange --syncaction will trigger following softlockup: kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Call Trace: <TASK> md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30 And the detailed process is as follows: md_do_sync j = mddev->resync_min while (j < max_sectors) sectors = raid10_sync_request(mddev, j, &skipped) if (!md_bitmap_start_sync(..., &sync_blocks)) // md_bitmap_start_sync set sync_blocks to 0 return sync_blocks + sectors_skippe; // sectors = 0; j += sectors; // j never change Root cause is that commit 301867b1c168 ("md/raid10: check slab-out-of-bounds in md_bitmap_get_counter") return early from md_bitmap_get_counter(), without setting returned blocks. Fix this problem by always set returned blocks from md_bitmap_get_counter"(), as it used to be. Noted that this patch just fix the softlockup problem in kernel, the case that bitmap size doesn't match array size still need to be fixed.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 19, 2024
Updated
Oct 15, 2026
EPSS
0.1% · 9th 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 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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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 kernel4.19.291 and later · before 4.19.316
  • linux linux kernel5.4.251 and later · before 5.4.278
  • linux linux kernel5.10.188 and later · before 5.10.219
  • linux linux kernel5.15.121 and later · before 5.15.161
  • linux linux kernel6.1.39 and later · before 6.1.93
  • linux linux kernel6.5 and later · before 6.6.33
  • linux linux kernel6.7 and later · before 6.8.12
  • linux linux kernel6.9 and later · before 6.9.3

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

    • 152bb26796ff054af50b2ee1b3ca56e364e4f61b, bea301c046110bf421a3ce153fb868cb8d618e90, 6.5affected
    • 374fb914304d9b500721007f3837ea8f1f9a2418 and later · before d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798affected · git
    • b0b971fe7d61411ede63c3291764dbde1577ef2c and later · before 43771597feba89a839c5f893716df88ae5c237ceaffected · git
    • 39fa14e824acfd470db4f42c354297456bd82b53 and later · before 3f5b73ef8fd6268cbc968b308d8eafe56fda97f3affected · git
    • a134dd582c0d5b6068efa308bd485cf1d00b3f65 and later · before 69296914bfd508c85935bf5f711cad9b0fe78492affected · git
    • be1a3ec63a840cc9e59a033acf154f56255699a1 and later · before 71e8e4f288e74a896b6d9cd194f3bab12bd7a10faffected · git
    • 301867b1c16805aebbc306aafa6ecdc68b73c7e5 and later · before c9566b812c8f66160466cc1e29df6d3646add0b1affected · git
    • 301867b1c16805aebbc306aafa6ecdc68b73c7e5 and later · before 5817f43ae1a118855676f57ef7ab50e37eac7482affected · git
    • 301867b1c16805aebbc306aafa6ecdc68b73c7e5 and later · before 8bbc71315e0ae4bb7e37f8d43b915e1cb01a481baffected · git
    • 301867b1c16805aebbc306aafa6ecdc68b73c7e5 and later · before f0e729af2eb6bee9eb58c4df1087f14ebaefe26baffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.94-16.1.94-1
Debian:13linuxbefore 6.8.12-16.8.12-1
Red Hat:rhel_eus:9.4::appstreambpftool-debuginfobefore 0:7.3.0-427.50.1.el9_40:7.3.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-develbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-develbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-develbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-develbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-devel-matchedbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-docbefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debug-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-tools-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-zfcpdump-debuginfobefore 0:5.14.0-427.50.1.el9_40:5.14.0-427.50.1.el9_4

+56

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-2024-38594Jun 19, 2024 · net: stmmac: move the EST lock to struct stmmac_priv
    22Monitor
  • ← EarlierCVE-2024-38596Jun 19, 2024 · af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
    18Monitor
  • Later →CVE-2024-38599Jun 19, 2024 · jffs2: prevent xattr node from overflowing the eraseblock
    28Monitor

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 Linux3f5b73ef8fd6268cbc968b308d8eafe56fda97f3Vendor (CNA)
Linux Linux4.19.316Vendor (CNA)
Linux Linux43771597feba89a839c5f893716df88ae5c237ceVendor (CNA)
Linux Linux5.10.219Vendor (CNA)
Linux Linux5.15.161Vendor (CNA)
Linux Linux5.4.278Vendor (CNA)
Linux Linux5817f43ae1a118855676f57ef7ab50e37eac7482Vendor (CNA)
Linux Linux6.1.93Vendor (CNA)
Linux Linux6.4Vendor (CNA)
Linux Linux6.5Vendor (CNA)
Linux Linux69296914bfd508c85935bf5f711cad9b0fe78492Vendor (CNA)
Linux Linux71e8e4f288e74a896b6d9cd194f3bab12bd7a10fVendor (CNA)
Linux Linux8bbc71315e0ae4bb7e37f8d43b915e1cb01a481bVendor (CNA)
Linux Linuxc9566b812c8f66160466cc1e29df6d3646add0b1Vendor (CNA)
Linux Linuxd4b9c764d48fa41caa24cfb4275f3aa9fb4bd798Vendor (CNA)
Linux Linuxf0e729af2eb6bee9eb58c4df1087f14ebaefe26bVendor (CNA)
debian:linux6.1.94-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.50.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage 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.

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-667 · Improper Locking

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (12 more)

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

All records