CVE-2021-47609: firmware: arm_scpi: Fix string overflow in SCPI genpd driver
Vulnerability summary
CVE-2021-47609 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.7% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 10Timeline
- 19-06-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Fix string overflow in SCPI genpd driver Without the bound checks for scpi_pd->name, it could result in the buffer overflow when copying the SCPI device name from the corresponding device tree node as the name string is set at maximum size of 30. Let us fix it by using devm_kasprintf so that the string buffer is allocated dynamically.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% 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.
Ubuntu87 products
- linux< 4.15.0-169.177 | < 5.4.0-105.119
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.15.0-1121.129 | < 5.4.0-1069.73
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 639901b9429a3195e0fead981ed74b51f5f31538 | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 4694b1ec425a2d20d6f8ca3db594829fdf5f2672 | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 7e8645ca2c0046f7cd2f0f7d569fc036c8abaedb | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 802a1a8501563714a5fe8824f4ed27fec04a0719 | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < f0f484714f35d24ffa0ecb4afe3df1c5b225411d | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 976389cbb16cee46847e5d06250a3a0b5506781e | ≥ 8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7, < 865ed67ab955428b9aa771d8b4f1e4fb7fd08945 | 4.8
- linux_kernel≥ 4.8, < 4.9.294 | ≥ 4.10, < 4.14.259 | ≥ 4.15, < 4.19.222 | ≥ 4.20, < 5.4.168 | ≥ 5.5, < 5.10.88 | ≥ 5.11, < 5.15.11 | 5.16:rc1 | 5.16:rc2 | 5.16:rc3 | 5.16:rc4 | 5.16:rc5
Debian1 product
- linux< 5.15.15-1
3 vendors · 90 products
