How severe is CVE-2024-35831?

CVE-2024-35831 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-35831 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-35831?

CVE-2024-35831 primarily affects Linux Linux Kernel. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-35831?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-35831 have an EU (EUVD) identifier?

Yes. CVE-2024-35831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35727.

When was CVE-2024-35831 published?

CVE-2024-35831 was published on 2024-05-17 and last updated on 2026-06-17.

CVE-2024-35831

CVE-2024-35831 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-35727
Weakness: CWE-401
Affected product: Linux Linux Kernel
Published: 2024-05-17
Last modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.

Frequently asked questions

What is CVE-2024-35831?: In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.
How severe is CVE-2024-35831?: CVE-2024-35831 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-35831 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-35831?: CVE-2024-35831 primarily affects Linux Linux Kernel. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-35831?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-35831 have an EU (EUVD) identifier?: Yes. CVE-2024-35831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35727.
When was CVE-2024-35831 published?: CVE-2024-35831 was published on 2024-05-17 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc7:*:*:*:*:*:*

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