CVE-2025-21996 (GCVE-0-2025-21996)
Vulnerability from cvelistv5 – Published: 2025-04-03 07:18 – Updated: 2026-05-11 21:10- CWE-908 - Use of Uninitialized Resource
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
2fc5703abda201f138faf63bdca743d04dbf4b1a , < 0effb378ebce52b897f85cd7f828854b8c7cb636
(git)
Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < 5b4d9d20fd455a97920cf158dd19163b879cf65d (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < 9b2da9c673a0da1359a2151f7ce773e2f77d71a9 (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < 78b07dada3f02f77762d0755a96d35f53b02be69 (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < 3ce08215cad55c10a6eeeb33d3583b6cfffe3ab8 (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < dd1801aa01bba1760357f2a641346ae149686713 (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < f5e049028124f755283f2c07e7a3708361ed1dc8 (git) Affected: 2fc5703abda201f138faf63bdca743d04dbf4b1a , < dd8689b52a24807c2d5ce0a17cb26dc87f75235c (git) |
guessed | |
| Linux | Linux |
Affected:
3.15
Unaffected: 0 , < 3.15 (semver) Unaffected: 5.4.292 , ≤ 5.4.* (semver) Unaffected: 5.10.236 , ≤ 5.10.* (semver) Unaffected: 5.15.180 , ≤ 5.15.* (semver) Unaffected: 6.1.132 , ≤ 6.1.* (semver) Unaffected: 6.6.85 , ≤ 6.6.* (semver) Unaffected: 6.12.21 , ≤ 6.12.* (semver) Unaffected: 6.13.9 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/radeon: soluciona el problema de tama\u00f1o no inicializado en radeon_vce_cs_parse() En el improbable caso de que el flujo de comandos pasado desde el espacio de usuario a trav\u00e9s de la llamada ioctl() a radeon_vce_cs_parse() est\u00e9 manipulado de forma extra\u00f1a y el primer comando a ejecutar sea codificar (caso 0x03000001), la funci\u00f3n en cuesti\u00f3n intentar\u00e1 llamar a radeon_vce_cs_reloc() con el argumento de tama\u00f1o que no se ha inicializado correctamente. Espec\u00edficamente, \u0027size\u0027 apuntar\u00e1 a la variable \u0027tmp\u0027 antes de que a esta \u00faltima se le haya asignado alg\u00fan valor. Vaya a lo seguro e inicialice \u0027tmp\u0027 con 0, lo que garantiza que radeon_vce_cs_reloc() detecte un error temprano en casos como estos. Encontrado por el Centro de Verificaci\u00f3n de Linux (linuxtesting.org) con la herramienta de an\u00e1lisis est\u00e1tico SVACE. (seleccionado del commit 2d52de55f9ee7aaee0e09ac443f77855989c6b68)"
}
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"title": "kernel: drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21996.json",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()\n\nOn the off chance that command stream passed from userspace via\nioctl() call to radeon_vce_cs_parse() is weirdly crafted and\nfirst command to execute is to encode (case 0x03000001), the function\nin question will attempt to call radeon_vce_cs_reloc() with size\nargument that has not been properly initialized. Specifically, \u0027size\u0027\nwill point to \u0027tmp\u0027 variable before the latter had a chance to be\nassigned any value.\n\nPlay it safe and init \u0027tmp\u0027 with 0, thus ensuring that\nradeon_vce_cs_reloc() will catch an early error in cases like these.\n\nFound by Linux Verification Center (linuxtesting.org) with static\nanalysis tool SVACE.\n\n(cherry picked from commit 2d52de55f9ee7aaee0e09ac443f77855989c6b68)"
}
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}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.