arch: riscv: userspace: potential security risk when CONFIG_RISCV_GP=y

published 2024-11-15 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-33714

cvss: 9.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits: 0; none known

When the Global Pointer (GP) relative addressing is enabled (CONFIG_RISCV_GP=y), the gp reg points at 0x800 bytes past the start of the .sdata section which is then used by the linker to relax accesses to global symbols.

Patch / fix

links 1

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-jjf3-7x… advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-18)

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.4	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	8.4	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

zephyrproject-rtos Zephyr

Classification

Weakness

CWE-270 Privilege Context Switching Error

References

github.com /zephyrproject-rtos/zephyr/security/advisories/GHSA-jjf3-7x72-pqm9
patch, vendor-advisory

Sources

CVE List CVE-2024-11263
NVD CVE-2024-11263

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary