CVE-2026-72298net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
- 8.4HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Affected products
- affected 960b08dd36de1e341e3eb43d1c547513e338f4f8 – < 3665e644ea081c4624a1637023b0de3b29f4ae04
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < b609f7f46916c6b05585ca82455077198a23770f
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < 242408b5b763c01288adf3113cbce84378a76e1a
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < d0597074e99731fdad5593e4f6d056a3866f2cab
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < 689b7267f8632b4661879dc323e26ebb60978afb
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < 7f72c285f6d3bf63968a0344beee8ab1b370198b
- affected ad9d24c9429e2159d1e279dc3a83191ccb4daf1d – < 20054869770c7df060c5ecee3e8bbf9029c47191
- affected f8111c0d7ed42ede41a3d0d393b104de0730a8a6
- affected 26b8d10703a9be45d6097946b2b4011f7dd2c56f
- affected 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe
- affected 5.10.46 – < 5.10.261
- affected 4.19.196 – < 4.20
- affected 5.4.128 – < 5.5
- affected 5.12.13 – < 5.13
- affected 5.13
- unaffected < 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.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04 (opens in a new tab)
- https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f (opens in a new tab)
- https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a (opens in a new tab)
- https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab (opens in a new tab)
- https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb (opens in a new tab)
- https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec (opens in a new tab)
- https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b (opens in a new tab)
- https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59197 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72298)Record last updated .