CVE-2023-52838: fbdev: imsttfb: fix a resource leak in probe
Vulnerability summary
CVE-2023-52838 is a medium (CVSS 6.2) Use After Free vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.7% of scored vulnerabilities.
Not severe (CVSS 6.2, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 10Timeline
- 21-05-2024PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: imsttfb: fix a resource leak in probe I've re-written the error handling but the bug is that if init_imstt() fails we need to call iounmap(par->cmap_regs).
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.2MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.2MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.2MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.25% 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, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu112 products
- linux< 5.4.0-173.191 | < 5.15.0-100.110
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1120.130 | < 5.15.0-1056.61
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7f683f286a2196bd4d2da420a3194f5ba0269d8c, < 382e1931e0c9cd58a5a8519cdc6cd9dc4d82b485 | ≥ 815c95d82b79bb32e9aa7c95c6ac7cb1c92612cd, < 6c66d737b2726ac7784269ddf32a31634f8f269d | ≥ 2bf70b88cc358a437db376826f92c8dcf9c23587, < a4dfebec32ec6d420a5506dd56a7834c91be28e4 | ≥ ad3de274e065790181f112b9c72a2fb4665ee2fd, < 8e4b510fe91782522b7ca0ca881b663b5d35e513 | ≥ c6c0a9f619584be19726ce7f81c31bc555af401a, < 7bc7b82fb2191b0d50a80ee4e27030918767dd1d | ≥ c75f5a55061091030a13fef71b9995b89bc86213, < 18d26f9baca7d0d309303e3074a2252b8310884a | ≥ c75f5a55061091030a13fef71b9995b89bc86213, < b346a531159d08c564a312a9eaeea691704f3c00 | ≥ c75f5a55061091030a13fef71b9995b89bc86213, < aba6ab57a910ad4b940c2024d15f2cdbf5b7f76b | 64c6b84c73f576380fadeec2d30aaeccbc2994c7 | 4c86974fb42281b8041a504d92ab341ad4697325 | ≥ 4.19.291, < 4.19.299 | ≥ 5.4.251, < 5.4.261 | ≥ 5.10.188, < 5.10.201 | ≥ 5.15.116, < 5.15.139 | ≥ 6.1.33, < 6.1.63 | ≥ 4.14.322, < 4.15 | ≥ 6.3.7, < 6.4 | 6.4
- linux_kernel≥ 4.14.322, < 4.15 | ≥ 4.19.291, < 4.19.299 | ≥ 5.4.251, < 5.4.261 | ≥ 5.10.188, < 5.10.201 | ≥ 5.15.116, < 5.15.139 | ≥ 6.1.33, < 6.1.63 | ≥ 6.3.7, < 6.5.12 | ≥ 6.6, < 6.6.2
Debian1 product
- linux< 6.1.64-1 | < 6.6.8-1
3 vendors · 115 products
