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NVD / CVE Program· CNA Linux

CVE-2024-26764: fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio

Noroxi assessment

Priority: Monitor (action score 13/100)

  • 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: 0.24% (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 18f614369def2a11a52f569fe0f910b199d13487, 1dc7d74fe456944a9b1c57bd776280249f441ac6, 337b543e274fe7a8f47df3c8293cc6686ffa620f.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 18f614369def2a11a52f569fe0f910b199d13487, 1dc7d74fe456944a9b1c57bd776280249f441ac6, 337b543e274fe7a8f47df3c8293cc6686ffa620f 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: fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio If kiocb_set_cancel_fn() is called for I/O submitted via io_uring, the following kernel warning appears: WARNING: CPU: 3 PID: 368 at fs/aio.c:598 kiocb_set_cancel_fn+0x9c/0xa8 Call trace: kiocb_set_cancel_fn+0x9c/0xa8 ffs_epfile_read_iter+0x144/0x1d0 io_read+0x19c/0x498 io_issue_sqe+0x118/0x27c io_submit_sqes+0x25c/0x5fc __arm64_sys_io_uring_enter+0x104/0xab0 invoke_syscall+0x58/0x11c el0_svc_common+0xb4/0xf4 do_el0_svc+0x2c/0xb0 el0_svc+0x2c/0xa4 el0t_64_sync_handler+0x68/0xb4 el0t_64_sync+0x1a4/0x1a8 Fix this by setting the IOCB_AIO_RW flag for read and write I/O that is submitted by libaio.

LowCVSS 3.3 · v3.1—No exploit Fix available
Published
Apr 3, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 16th percentile
CWE
—

Report tools

JSON

Action score

13

Monitor

Low priority for now.

CVSS
13 / 40 · 3.3 / 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-2024-26764

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 kernel4.20 and later · before 5.4.270
  • linux linux kernel5.5 and later · before 5.10.211
  • linux linux kernel5.11 and later · before 5.15.150
  • linux linux kernelbefore 4.19.308
  • linux linux kernel6.2 and later · before 6.6.19
  • linux linux kernel6.7 and later · before 6.7.7
  • linux linux kernel5.16 and later · before 6.1.80
  • linux linux kernel6.8

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

    • 4.1affected
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before 337b543e274fe7a8f47df3c8293cc6686ffa620faffected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before b4eea7a05ee0ab5ab0514421e6ba8c5d249cf942affected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before ea1cd64d59f22d6d13f367d62ec6e27b9344695faffected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before d7b6fa97ec894edd02f64b83e5e72e1aa352f353affected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before 18f614369def2a11a52f569fe0f910b199d13487affected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before e7e23fc5d5fe422827c9a43ecb579448f73876c7affected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before 1dc7d74fe456944a9b1c57bd776280249f441ac6affected · git
    • 04b2fa9f8f36ec6fb6fd1c9dc9df6fff0cd27323 and later · before b820de741ae48ccf50dd95e297889c286ff4f760affected · git
    • before 4.1not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1

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-2024-26762Apr 3, 2024 · cxl/pci: Skip to handle RAS errors if CXL.mem device is detached
    22Monitor
  • ← EarlierCVE-2024-26763Apr 3, 2024 · dm-crypt: don't modify the data when using authenticated encryption
    28Monitor
  • Later →CVE-2024-26765Apr 3, 2024 · LoongArch: Disable IRQ before init_fn() for nonboot CPUs
    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 Linux18f614369def2a11a52f569fe0f910b199d13487Vendor (CNA)
Linux Linux1dc7d74fe456944a9b1c57bd776280249f441ac6Vendor (CNA)
Linux Linux337b543e274fe7a8f47df3c8293cc6686ffa620fVendor (CNA)
Linux Linuxb4eea7a05ee0ab5ab0514421e6ba8c5d249cf942Vendor (CNA)
Linux Linuxb820de741ae48ccf50dd95e297889c286ff4f760Vendor (CNA)
Linux Linuxd7b6fa97ec894edd02f64b83e5e72e1aa352f353Vendor (CNA)
Linux Linuxe7e23fc5d5fe422827c9a43ecb579448f73876c7Vendor (CNA)
Linux Linuxea1cd64d59f22d6d13f367d62ec6e27b9344695fVendor (CNA)
debian:linux6.1.82-1 · 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.

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).

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
low · 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
Low

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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 (9 more)

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

All records