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NVD / CVE Program· CNA Linux

CVE-2024-35826: block: Fix page refcounts for unaligned buffers in __bio_release_pages()

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: 0.21% (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 242006996d15f5ca62e22f8c7de077d9c4a8f367, 38b43539d64b2fa020b3b9a752a986769f87f7a6, 4.20.

Low priority for now. Upgrade to Linux Linux 242006996d15f5ca62e22f8c7de077d9c4a8f367, 38b43539d64b2fa020b3b9a752a986769f87f7a6, 4.20 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: block: Fix page refcounts for unaligned buffers in __bio_release_pages() Fix an incorrect number of pages being released for buffers that do not start at the beginning of a page.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 17, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 11th 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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-35826

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

Affected versions

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

  • linux linux kernel4.19.307 and later · before 4.20
  • linux linux kernel5.4.269 and later · before 5.5
  • linux linux kernel5.10.210 and later · before 5.11
  • linux linux kernel5.15.148 and later · before 5.16
  • linux linux kernel6.1.75 and later · before 6.1.84
  • linux linux kernel6.6.14 and later · before 6.6.24
  • linux linux kernel6.7.2 and later · before 6.7.12
  • linux linux kernel6.8 and later · before 6.8.3

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

    • d2d0b95ca1b5fefa3deed444a803c9f809db66cf, 3f4e660144edb053886fc80f587a71ad7afc2ad6, bfc0647791d7a8f3e178a896a26c4ef7794876b7, 0f2dca516541032fe47a1236c852f58edc662795, 6.8affected
    • 9025ee1079291fac79c7fcc20086e9f0015f86f4 and later · before 242006996d15f5ca62e22f8c7de077d9c4a8f367affected · git
    • 8955324cc9f93304efe163120038b38c36c09fba and later · before 7d3765550374f71248c55e6206ea1d6fd4537e65affected · git
    • d198c15d181cc9d580f0f2c25150b077d1d49c1a and later · before ecbd9ced84dd655a8f4cd49d2aad0e80dbf6bf35affected · git
    • 1b151e2435fc3a9b10c8946c6aebe9f3e1938c55 and later · before c9d3d2fbde9b8197bce88abcbe8ee8e713ffe7c2affected · git
    • 1b151e2435fc3a9b10c8946c6aebe9f3e1938c55 and later · before 38b43539d64b2fa020b3b9a752a986769f87f7a6affected · git
    • 6.1.75 and later · before 6.1.84affected · semver
    • 6.6.14 and later · before 6.6.24affected · semver
    • 6.7.2 and later · before 6.7.12affected · semver
    • 4.19.307 and later · before 4.20affected · 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 6.7.12-16.7.12-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.47.16.4.0-150600.23.47.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.34.26.4.0-150600.8.34.2
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.47.2.150600.12.20.26.4.0-150600.23.47.2.150600.12.20.2
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.47.16.4.0-150600.23.47.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.47.16.4.0-150600.23.47.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.47.16.4.0-150600.23.47.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.34.16.4.0-150600.10.34.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.34.16.4.0-150600.10.34.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.34.26.4.0-150600.8.34.2
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.34.16.4.0-150600.10.34.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.47.16.4.0-150600.23.47.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.34.16.4.0-150600.8.34.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.34.16.4.0-150600.10.34.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_10before 1-150600.13.5.11-150600.13.5.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_10before 1-150600.1.5.11-150600.1.5.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-64kbbefore 6.4.0-150600.23.47.26.4.0-150600.23.47.2

+26

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-2024-35824May 17, 2024 · misc: lis3lv02d_i2c: Fix regulators getting en-/dis-abled twice on suspend/resume
    22Monitor
  • ← EarlierCVE-2024-35825May 17, 2024 · usb: gadget: ncm: Fix handling of zero block length packets
    22Monitor
  • Later →CVE-2024-35827May 17, 2024 · io_uring/net: fix overflow check in io_recvmsg_mshot_prep()
    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 Linux242006996d15f5ca62e22f8c7de077d9c4a8f367Vendor (CNA)
Linux Linux38b43539d64b2fa020b3b9a752a986769f87f7a6Vendor (CNA)
Linux Linux4.20Vendor (CNA)
Linux Linux5.11Vendor (CNA)
Linux Linux5.16Vendor (CNA)
Linux Linux5.5Vendor (CNA)
Linux Linux6.1.84Vendor (CNA)
Linux Linux6.6.24Vendor (CNA)
Linux Linux6.7.12Vendor (CNA)
Linux Linux7d3765550374f71248c55e6206ea1d6fd4537e65Vendor (CNA)
Linux Linuxc9d3d2fbde9b8197bce88abcbe8ee8e713ffe7c2Vendor (CNA)
Linux Linuxecbd9ced84dd655a8f4cd49d2aad0e80dbf6bf35Vendor (CNA)
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0—Microsoft (MSRC)
debian:linux6.1.85-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.47.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.47.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.34.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.47.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.47.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.47.2.150600.12.20.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt6.4.0-150600.10.34.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt_debug6.4.0-150600.10.34.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.34.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-rt6.4.0-150600.10.34.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.34.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-rt6.4.0-150600.10.34.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.34.2 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-coco6.4.0-15061.21.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-coco_debug6.4.0-15061.21.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-livepatch-SLE15-SP6-RT_Update_101-150600.1.5.1 · SUSE:Linux Enterprise Live Patching 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)

—

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 (4 more)

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

All records