8.4

CVE-2026-72298: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()

Received
AliasesUBUNTU-CVE-2026-72298DEBIAN-CVE-2026-72298
Published 15-08-2026Last modified 16-10-2026

Vulnerability summary

CVE-2026-72298 is a high (CVSS 8.4) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 8.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 15
RHSA-2026:68532RHSA-2026:68570USN-8875-1USN-8875-2USN-8876-1USN-8877-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu168 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 960b08dd36de1e341e3eb43d1c547513e338f4f8, < 3665e644ea081c4624a1637023b0de3b29f4ae04 | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < b609f7f46916c6b05585ca82455077198a23770f | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < 242408b5b763c01288adf3113cbce84378a76e1a | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < d0597074e99731fdad5593e4f6d056a3866f2cab | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < 689b7267f8632b4661879dc323e26ebb60978afb | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < 7f72c285f6d3bf63968a0344beee8ab1b370198b | ≥ ad9d24c9429e2159d1e279dc3a83191ccb4daf1d, < 20054869770c7df060c5ecee3e8bbf9029c47191 | f8111c0d7ed42ede41a3d0d393b104de0730a8a6 | 26b8d10703a9be45d6097946b2b4011f7dd2c56f | 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe | ≥ 5.10.46, < 5.10.261 | ≥ 4.19.196, < 4.20 | ≥ 5.4.128, < 5.5 | ≥ 5.12.13, < 5.13 | 5.13

3 vendors · 170 products

References

27 links
Show all 27 references