CVE-2022-49404: RDMA/hfi1: Fix potential integer multiplication overflow errors
Vulnerability summary
CVE-2022-49404 is a medium (CVSS 5.5) Integer Overflow or Wraparound vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 7Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix potential integer multiplication overflow errors When multiplying of different types, an overflow is possible even when storing the result in a larger type. This is because the conversion is done after the multiplication. So arithmetic overflow and thus in incorrect value is possible. Correct an instance of this in the inter packet delay calculation. Fix by ensuring one of the operands is u64 which will promote the other to u64 as well ensuring no overflow.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 4.15.0-192.203 | < 5.4.0-126.142 | < 5.15.0-47.51
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1140.151 | < 5.4.0-1085.92 | < 5.15.0-1019.23
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 252f4afd4557a2e7075f793a5c80fe6dd9e9ee4a | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < a89cb7ddf6a89bab6012e19da38b7cdb26175c19 | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 79c164e61f818054cd6012e9035701840d895c51 | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 8858284dd74906fa00f04f0252c75df4893a7959 | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 31dca00d0cc9f4133320d72eb7e3720badc6d6e6 | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 3f09ec80f115d2875d747ed28adc1773037e0f8b | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < 06039d8afefdbac05bcea5f397188407eba2996d | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < ef5ab2e48a5f9960e2352332b7cdb7064bb49032 | ≥ 7724105686e718ac476a6ad3304fea2fbcfcffde, < f93e91a0372c922c20d5bee260b0f43b4b8a1bee | 4.3
- linux_kernel≥ 4.3, < 4.9.318 | ≥ 4.10, < 4.14.283 | ≥ 4.15, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.121 | ≥ 5.11, < 5.15.46 | ≥ 5.16, < 5.17.14 | ≥ 5.18, < 5.18.3
Debian1 product
- linux< 5.18.5-1
3 vendors · 114 products
