tracing: Fix overflow in get_free_elt()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-43890
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-08-26 11:15:04 UTC
Updated2026-05-12 12:17:08 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: tracing: Fix overflow in get_free_elt() "tracing_map->next_elt" in get_free_elt() is at risk of overflowing. Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem. Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-190

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 08d43a5fa063e03c860f2f391a30c388bcbc948e 302ceb625d7b990db205a15e371f9a71238de91c git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18 git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e eb223bf01e688dfe37e813c8988ee11c8c9f8d0a git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e cd10d186a5409a1fe6e976df82858e9773a698da git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e 788ea62499b3c18541fd6d621964d8fafbc4aec5 git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e a172c7b22bc2feaf489cfc6d6865f7237134fdf8 git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e 236bb4690773ab6869b40bedc7bc8d889e36f9d6 git Not specified
CNA Linux Linux affected 08d43a5fa063e03c860f2f391a30c388bcbc948e bcf86c01ca4676316557dd482c8416ece8c2e143 git Not specified
CNA Linux Linux affected 4.7 Not specified
CNA Linux Linux unaffected 4.7 semver Not specified
CNA Linux Linux unaffected 4.19.320 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.282 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.224 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.165 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.105 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.46 6.6.* semver Not specified
CNA Linux Linux unaffected 6.10.5 6.10.* semver Not specified
CNA Linux Linux unaffected 6.11 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens RUGGEDCOM RST2428P unaffected * custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * 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 SCALANCE XCM-/XRM-/XCH-/XRH-300 Family unaffected * custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18 416baaa9-dc9f-4396-8d5f-8c081fb06d67 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/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
lists.debian.org/debian-lts-announce/2024/10/msg00003.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-355557.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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