In the Linux kernel, the following vulnerability has been resolved:

protect the fetch of ->fd[fd] in do_dup2() from mispredictions

both callers have verified that fd is not greater than ->max_fds;
however, misprediction might end up with
tofree = fdt->fd[fd];
being speculatively executed. That's wrong for the same reasons
why it's wrong in close_fd()/file_close_fd_locked(); the same
solution applies - array_index_nospec(fd, fdt->max_fds) could differ
from fd only in case of speculative execution on mispredicted path.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00013.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
8280d16172243702ed43432f826ca6130edb4086 affected < ed42e8ff509d2a61c6642d1825032072dab79f26
8280d16172243702ed43432f826ca6130edb4086 affected < 41a6c31df77bd8e050136b0a200b537da9e1084a
8280d16172243702ed43432f826ca6130edb4086 affected < 08775b3d6ed117cf4518754ec7300ee42b6a5368
8280d16172243702ed43432f826ca6130edb4086 affected < 3f480493550b6a23d3a65d095d6569d4a7f56a0f
8280d16172243702ed43432f826ca6130edb4086 affected < 5db999fff545b924b24c9afd368ef5c17279b176
8280d16172243702ed43432f826ca6130edb4086 affected < da72e783afd27d9f487836b2e6738146c0edd149
8280d16172243702ed43432f826ca6130edb4086 affected < 1171ceccabfd596ca370c5d2cbb47d110c3f2fe1
8280d16172243702ed43432f826ca6130edb4086 affected < 8aa37bde1a7b645816cda8b80df4753ecf172bf1
Linux Linux affected
Version Status Constraints
3.7 affected —
0 unaffected < 3.7
4.19.320 unaffected ≤ 4.19.*
5.4.282 unaffected ≤ 5.4.*
5.10.224 unaffected ≤ 5.10.*
5.15.165 unaffected ≤ 5.15.*
6.1.104 unaffected ≤ 6.1.*
6.6.45 unaffected ≤ 6.6.*
6.10.4 unaffected ≤ 6.10.*
6.11 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 8
kernel-0:4.18.0-553.22.1.el8_10 cpe:/o:redhat:enterprise_linux:8 RHSA-2024:7000 2024-09-24T00:00:00Z
Red Hat Enterprise Linux 9
kernel-0:5.14.0-570.12.1.el9_6 cpe:/a:redhat:enterprise_linux:9 RHSA-2025:6966 2025-05-13T00:00:00Z
kernel-0:5.14.0-570.12.1.el9_6 cpe:/o:redhat:enterprise_linux:9 RHSA-2025:6966 2025-05-13T00:00:00Z
Red Hat Enterprise Linux 9.4 Extended Update Support
kernel-0:5.14.0-427.61.1.el9_4 cpe:/a:redhat:rhel_eus:9.4 RHSA-2025:3215 2025-03-26T00:00:00Z

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Redhat Subscribe
Enterprise Linux Subscribe
Rhel Eus Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-3912-1 linux security update
Debian DLA Debian DLA DLA-4008-1 linux-6.1 security update
Ubuntu USN Ubuntu USN USN-7088-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7088-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7088-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7088-4 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7088-5 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7100-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7100-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7119-1 Linux kernel (IoT) vulnerabilities
Ubuntu USN Ubuntu USN USN-7123-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-7144-1 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-7154-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7155-1 Linux kernel (NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-7156-1 Linux kernel (GKE) vulnerabilities
Ubuntu USN Ubuntu USN USN-7154-2 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-7194-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-7196-1 Linux kernel (Azure) vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368 cve-icon cve-icon
https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1 cve-icon cve-icon
https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f cve-icon cve-icon
https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a cve-icon cve-icon
https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176 cve-icon cve-icon
https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1 cve-icon cve-icon
https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149 cve-icon cve-icon
https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html cve-icon
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html cve-icon
https://lore.kernel.org/linux-cve-announce/2024081737-CVE-2024-42265-a943@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-42265 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-42265 cve-icon
History

Mon, 03 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

Fri, 03 Oct 2025 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00359}

 epss

{'score': 0.00276}

Wed, 14 May 2025 02:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:9

Wed, 26 Mar 2025 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_eus:9.4
Vendors & Products Redhat rhel Eus

Fri, 27 Sep 2024 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-99

Tue, 24 Sep 2024 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:8
Vendors & Products Redhat
Redhat enterprise Linux

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Aug 2024 19:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Mon, 19 Aug 2024 04:45:00 +0000

Type Values Removed Values Added
References

Sat, 17 Aug 2024 09:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: protect the fetch of ->fd[fd] in do_dup2() from mispredictions both callers have verified that fd is not greater than ->max_fds; however, misprediction might end up with tofree = fdt->fd[fd]; being speculatively executed. That's wrong for the same reasons why it's wrong in close_fd()/file_close_fd_locked(); the same solution applies - array_index_nospec(fd, fdt->max_fds) could differ from fd only in case of speculative execution on mispredicted path.
Title protect the fetch of ->fd[fd] in do_dup2() from mispredictions
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T10:52:09.824Z

Reserved: 2024-07-30T07:40:12.259Z

Link: CVE-2024-42265

cve-icon Vulnrichment

Updated: 2025-11-03T22:02:59.813Z

cve-icon NVD

Status : Modified

Published: 2024-08-17T09:15:07.893

Modified: 2025-11-03T22:17:51.350

Link: CVE-2024-42265

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-08-17T00:00:00Z

Links: CVE-2024-42265 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses