kprobes: Fix possible use-after-free issue on kprobe registration

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-35955
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-20 10:15:10 UTC
Updated2026-05-12 12:16:43 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: kprobes: Fix possible use-after-free issue on kprobe registration When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from ADP

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

Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8 b5808d40093403334d939e2c3c417144d12a6f33 git Not specified
CNA Linux Linux affected 6a119c1a584aa7a2c6216458f1f272bf1bc93a93 93eb31e7c3399e326259f2caa17be1e821f5a412 git Not specified
CNA Linux Linux affected 2a49b025c36ae749cee7ccc4b7e456e02539cdc3 5062d1f4f07facbdade0f402d9a04a788f52e26d git Not specified
CNA Linux Linux affected a1edb85e60fdab1e14db63ae8af8db3f0d798fb6 2df2dd27066cdba8041e46a64362325626bdfb2e git Not specified
CNA Linux Linux affected 28f6c37a2910f565b4f5960df52b2eccae28c891 62029bc9ff2c17a4e3a2478d83418ec575413808 git Not specified
CNA Linux Linux affected 28f6c37a2910f565b4f5960df52b2eccae28c891 d15023fb407337028a654237d8968fefdcf87c2f git Not specified
CNA Linux Linux affected 28f6c37a2910f565b4f5960df52b2eccae28c891 36b57c7d2f8b7de224980f1a284432846ad71ca0 git Not specified
CNA Linux Linux affected 28f6c37a2910f565b4f5960df52b2eccae28c891 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 git Not specified
CNA Linux Linux affected 4262b6eb057d86c7829168c541654fe0d48fdac8 git Not specified
CNA Linux Linux affected 97e813e6a143edf4208e15c72199c495ed80cea5 git Not specified
CNA Linux Linux affected 16a544f1e013ba0660612f3fe35393b143b19a84 git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 4.19.313 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.275 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.216 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.157 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.87 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.28 6.6.* semver Not specified
CNA Linux Linux unaffected 6.8.7 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Linux Linux Kernel affected 1c836bad43f3 b5808d400934 git Not specified
ADP Linux Linux Kernel affected 6a119c1a584a 93eb31e7c339 git Not specified
ADP Linux Linux Kernel affected 2a49b025c36a 93eb31e7c339 git Not specified
ADP Linux Linux Kernel affected a1edb85e60fd 2df2dd27066c git Not specified
ADP Linux Linux Kernel affected 28f6c37a2910 62029bc9ff2c git Not specified
ADP Linux Linux Kernel affected 28f6c37a2910 d15023fb4073 git Not specified
ADP Linux Linux Kernel affected 28f6c37a2910 36b57c7d2f8b git Not specified
ADP Linux Linux Kernel affected 28f6c37a2910 325f3fb551f8 git Not specified
ADP Linux Linux Kernel affected 6.0 Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family affected V3.1 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/b5808d40093403334d939e2c3c417144d12a6f33 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/62029bc9ff2c17a4e3a2478d83418ec575413808 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/5062d1f4f07facbdade0f402d9a04a788f52e26d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/2df2dd27066cdba8041e46a64362325626bdfb2e af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/36b57c7d2f8b7de224980f1a284432846ad71ca0 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/d15023fb407337028a654237d8968fefdcf87c2f af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/93eb31e7c3399e326259f2caa17be1e821f5a412 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00020.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
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