CVE-2022-48703: thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR
Vulnerability summary
CVE-2022-48703 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.5% 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 16 · Related 15Timeline
- 03-05-2024PublishedVulnerability first disclosed.
- 01-06-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR In some case, the GDDV returns a package with a buffer which has zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10). Then the data_vault_read() got NULL point dereference problem when accessing the 0x10 value in data_vault. [ 71.024560] BUG: kernel NULL pointer dereference, address: 0000000000000010 This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or NULL value in data_vault.
CVSS metrics
4 scores · 3 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
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.23% 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.
Ubuntu107 products
- linuxAll versions (No fix recorded) | < 5.15.0-156.166
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0ba13c763aacb27ab32bde5d559bf40e88465921, < 722588f17fd3d3a127e50718ec2caf22bd7e9daa | ≥ 0ba13c763aacb27ab32bde5d559bf40e88465921, < 39d5137085a6c37ace4680ee4d24020a4a03e7dc | ≥ 0ba13c763aacb27ab32bde5d559bf40e88465921, < dae42083b045a4ddf71c57cf350cb2412b5915c2 | ≥ 0ba13c763aacb27ab32bde5d559bf40e88465921, < 7931e28098a4c1a2a6802510b0cbe57546d2049d | 5.8
- linux_kernel< 5.19.9 | 6.0:rc1 | 6.0:rc2
Debian1 product
- linux< 5.19.11-1
3 vendors · 110 products
