bpf: Send signals asynchronously if !preemptible

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-21728
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-27 02:15:16 UTC
Updated2026-05-12 13:16:33 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in all kinds of contexts and when a program running in a non-preemptible context uses the bpf_send_signal() kfunc, it will cause issues because this kfunc can sleep. Change `irqs_disabled()` to `!preemptible()`.

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: NVD-CWE-noinfo

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 fd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 feba1308bc5e8e04cee751d39fae8a9b407a9034 git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 ce51eab2070e295d298f42a2f1db269cd1b56d55 git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4 git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 be42a09fe898635b0093c0c8dac1bfabe225c240 git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 eeef8e65041a031bd8a747a392c14b76a123a12c git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 78b97783496b454435639937db3303e900a24d3f git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 092fc76b7ab4163e008f9cde596a58dad2108260 git Not specified
CNA Linux Linux affected 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 87c544108b612512b254c8f79aa5c0a8546e2cc4 git Not specified
CNA Linux Linux affected 7930d01afb7281edd9782971e0cca6fe587c7a7b git Not specified
CNA Linux Linux affected 5.6 Not specified
CNA Linux Linux unaffected 5.6 semver Not specified
CNA Linux Linux unaffected 5.4.291 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.235 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.179 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.129 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.76 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.13 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13.2 6.13.* semver Not specified
CNA Linux Linux unaffected 6.14 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/05/msg00030.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/eeef8e65041a031bd8a747a392c14b76a123a12c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/ce51eab2070e295d298f42a2f1db269cd1b56d55 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/78b97783496b454435639937db3303e900a24d3f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00028.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/87c544108b612512b254c8f79aa5c0a8546e2cc4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/feba1308bc5e8e04cee751d39fae8a9b407a9034 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/092fc76b7ab4163e008f9cde596a58dad2108260 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/be42a09fe898635b0093c0c8dac1bfabe225c240 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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