CVE-2026-72298
net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() qrtr_endpoint_post() validates an incoming packet with if (!size || len != ALIGN(size, 4) + hdrlen) goto err; where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected. This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case. Reject any size that cannot fit the buffer before the ALIGN.
References
- https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04
- https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f
- https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a
- https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab
- https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb
- https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec
- https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b
- https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-59197
- GCVE · GCVE-0-2026-72298
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1204 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 960b08dd36de1e341e3eb43d1c547513e338f4f8 < 3665e644ea081c4624a1637023b0de3b29f4ae04 ; affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < b609f7f46916c6b05585ca82455077198a23770f ; affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 242408b5b763c01288adf3113cbce84378a76e1a ; affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < d0597074e99731fdad5593e4f6d056a3866f2cab ; affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 689b7267f8632b4661879dc323e26ebb60978afb ; affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec |
| Linux · Linux | affected 5.13 ; unaffected 0 < 5.13 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* |
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 |