bpf: Fix out-of-bounds write in trie_get_next_key()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-50262
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-11-09 11:15:11 UTC
Updated2026-05-12 13:16:20 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-787 | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/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 b471f2f1de8b816f1e799b80aa92588f3566e4bd e8494ac079814a53fbc2258d2743e720907488ed git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd 91afbc0eb3c90258ae378ae3c6ead3d2371e926d git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd 590976f921723d53ac199c01d5b7b73a94875e68 git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd 86c8ebe02d8806dd8878d0063e8e185622ab6ea6 git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd a035df0b98df424559fd383e8e1a268f422ea2ba git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd 90a6e0e1e151ef7a9282e78f54c3091de2dcc99c git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980 git Not specified
CNA Linux Linux affected b471f2f1de8b816f1e799b80aa92588f3566e4bd 13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 git Not specified
CNA Linux Linux affected 4.16 Not specified
CNA Linux Linux unaffected 4.16 semver Not specified
CNA Linux Linux unaffected 4.19.323 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.285 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.229 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.171 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.116 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.60 6.6.* semver Not specified
CNA Linux Linux unaffected 6.11.7 6.11.* semver Not specified
CNA Linux Linux unaffected 6.12 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.2 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family affected V3.2 custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family affected V3.2 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00002.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d 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/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-355557.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6 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
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