CVE-2024-35880
io_uring/kbuf: hold io_buffer_list reference over mmap
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.69 % · percentile 53 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: hold io_buffer_list reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the io_uring lock. Rely on the fact that we can lookup the buffer list under RCU now and grab a reference to it, preventing it from being unregistered until we're done with it. The lookup returns the io_buffer_list directly with it referenced.
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-35598
- GCVE · GCVE-0-2024-35880
CERT-FR advisories
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0717 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0693 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0645 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0633 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0632 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0611 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.5 < 6.6.26cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7.1 < 6.8.5cpe:2.3:o:linux:linux_kernel:6.7:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.7:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.7:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.7:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.7:rc8:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 09f7520048eaaee9709091cd2787966f807da7c5 < 65938e81df2197203bda4b9a0c477e7987218d66 ; affected 5cf4f52e6d8aa2d3b7728f568abbf9d42a3af252 < 5fd8e2359498043e0b5329a05f02d10a9eb91eb9 ; affected 5cf4f52e6d8aa2d3b7728f568abbf9d42a3af252 < 561e4f9451d65fc2f7eef564e0064373e3019793 ; affected 6.6.5 < 6.6.26 |
| Linux · Linux | affected 6.7 ; unaffected 0 < 6.7 ; unaffected 6.6.26 ≤ 6.6.* ; unaffected 6.8.5 ≤ 6.8.* ; unaffected 6.9 ≤ * |
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 |