CVE-2025-21728 (GCVE-0-2025-21728)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:07 – Updated: 2026-05-23 15:57
VLAI
Title
bpf: Send signals asynchronously if !preemptible
Summary
In 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()`.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 , < feba1308bc5e8e04cee751d39fae8a9b407a9034 (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < ce51eab2070e295d298f42a2f1db269cd1b56d55 (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4 (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < be42a09fe898635b0093c0c8dac1bfabe225c240 (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < eeef8e65041a031bd8a747a392c14b76a123a12c (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < 78b97783496b454435639937db3303e900a24d3f (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < 092fc76b7ab4163e008f9cde596a58dad2108260 (git)
Affected: 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 , < 87c544108b612512b254c8f79aa5c0a8546e2cc4 (git)
Affected: 7930d01afb7281edd9782971e0cca6fe587c7a7b (git)
Affected: 5.4.33 , < 5.4.291 (semver)
Affected: 5.5.18 , < 5.6 (semver)
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Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.4.291 , ≤ 5.4.* (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.76 , ≤ 6.6.* (semver)
Unaffected: 6.12.13 , ≤ 6.12.* (semver)
Unaffected: 6.13.2 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
Create a notification for this product.
Show details on NVD website
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  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.