s390/ptrace: handle setting of fpc register correctly (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 15 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: s390/ptrace: handle setting of fpc register correctly If the content of the floating point control (fpc) register of a traced process is modified with the ptrace interface the new value is tested for validity by temporarily loading it into the fpc register. This may lead to corruption of the fpc register of the tracing process: if an interrupt happens while the value is temporarily loaded into the fpc register, and within interrupt context floating point or vector registers are used, the current fp/vx registers are saved with save_fpu_regs() assuming they belong to user space and will be loaded into fp/vx registers when returning to user space. test_fp_ctl() restores the original user space fpc register value, however it will be discarded, when returning to user space. In result the tracer will incorrectly continue to run with the value that was supposed to be used for the traced process. Fix this by saving fpu register contents with save_fpu_regs() before using test_fp_ctl().
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://git.kernel.org/stable/c/6ccf904aac0292e1f6b1a1be6c407c414f7cf713
- https://git.kernel.org/stable/c/6d0822f2cc9b153bf2df49a84599195a2e0d21a8
- https://git.kernel.org/stable/c/856caf2730ea18cb39e95833719c02a02447dc0a
- https://git.kernel.org/stable/c/28a1f492cb527f64593457a0a0f0d809b3f36c25
- https://git.kernel.org/stable/c/7a4d6481fbdd661f9e40e95febb95e3dee82bad3
- https://git.kernel.org/stable/c/02c6bbfb08bad78dd014e24c7b893723c15ec7a1
- https://git.kernel.org/stable/c/bdce67df7f12fb0409fbc604ce7c4254703f56d4
- https://git.kernel.org/stable/c/8b13601d19c541158a6e18b278c00ba69ae37829
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2023-57222
- GCVE · GCVE-0-2023-52598
CERT-FR advisories
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0741 — Multiples vulnérabilités dans Juniper Secure Analytics · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0646 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0527 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0471 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0458 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0456 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0440 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0439 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0422 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0420 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0383 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0381 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0363 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0334 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0329 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0226 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.19.307cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.269cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.210cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.149cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.77cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.7.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 6ccf904aac0292e1f6b1a1be6c407c414f7cf713 ; affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 6d0822f2cc9b153bf2df49a84599195a2e0d21a8 ; affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 856caf2730ea18cb39e95833719c02a02447dc0a ; affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 28a1f492cb527f64593457a0a0f0d809b3f36c25 ; affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 7a4d6481fbdd661f9e40e95febb95e3dee82bad3 ; affected 9977e886cbbc758b4b601a160b5825ba573b5ca8 < 02c6bbfb08bad78dd014e24c7b893723c15ec7a1 |
| Linux · Linux | affected 4.3 ; unaffected 0 < 4.3 ; unaffected 4.19.307 ≤ 4.19.* ; unaffected 5.4.269 ≤ 5.4.* ; unaffected 5.10.210 ≤ 5.10.* ; unaffected 5.15.149 ≤ 5.15.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |