io_uring/net: fix overflow check in io_recvmsg_mshot_prep() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/net: fix overflow check in io_recvmsg_mshot_prep() The "controllen" variable is type size_t (unsigned long). Casting it to int could lead to an integer underflow. The check_add_overflow() function considers the type of the destination which is type int. If we add two positive values and the result cannot fit in an integer then that's counted as an overflow. However, if we cast "controllen" to an int and it turns negative, then negative values *can* fit into an int type so there is no overflow. Good: 100 + (unsigned long)-4 = 96 <-- overflow Bad: 100 + (int)-4 = 96 <-- no overflow I deleted the cast of the sizeof() as well. That's not a bug but the cast is unnecessary.
Weaknesses (CWE)
- CWE-190 — Integer Overflow or Wraparound
References
- https://git.kernel.org/stable/c/868ec868616438df487b9e2baa5a99f8662cc47c
- https://git.kernel.org/stable/c/59a534690ecc3af72c6ab121aeac1237a4adae66
- https://git.kernel.org/stable/c/0c8c74bb59e7d77554016efc34c2d10376985e5e
- https://git.kernel.org/stable/c/b6563ad0d599110bd5cf8f56c47d279c3ed796fe
- https://git.kernel.org/stable/c/8ede3db5061bb1fe28e2c9683329aafa89d2b1b4
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-2024-35730
- GCVE · GCVE-0-2024-35827
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-0632 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0546 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.0 < 6.1.83cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.23cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.7.11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.8 < 6.8.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 9b0fc3c054ff2eb13753104884f1045b5bb3a627 < 868ec868616438df487b9e2baa5a99f8662cc47c ; affected 9b0fc3c054ff2eb13753104884f1045b5bb3a627 < 59a534690ecc3af72c6ab121aeac1237a4adae66 ; affected 9b0fc3c054ff2eb13753104884f1045b5bb3a627 < 0c8c74bb59e7d77554016efc34c2d10376985e5e ; affected 9b0fc3c054ff2eb13753104884f1045b5bb3a627 < b6563ad0d599110bd5cf8f56c47d279c3ed796fe ; affected 9b0fc3c054ff2eb13753104884f1045b5bb3a627 < 8ede3db5061bb1fe28e2c9683329aafa89d2b1b4 |
| Linux · Linux | affected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.83 ≤ 6.1.* ; unaffected 6.6.23 ≤ 6.6.* ; unaffected 6.7.11 ≤ 6.7.* ; unaffected 6.8.2 ≤ 6.8.* |
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 |