CVE-2026-31730 (GCVE-0-2026-31730)
Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-05-08 12:40
VLAI?
Title
misc: fastrpc: possible double-free of cctx->remote_heap
Summary
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: possible double-free of cctx->remote_heap
fastrpc_init_create_static_process() may free cctx->remote_heap on the
err_map path but does not clear the pointer. Later, fastrpc_rpmsg_remove()
frees cctx->remote_heap again if it is non-NULL, which can lead to a
double-free if the INIT_CREATE_STATIC ioctl hits the error path and the rpmsg
device is subsequently removed/unbound.
Clear cctx->remote_heap after freeing it in the error path to prevent the
later cleanup from freeing it again.
This issue was found by an in-house analysis workflow that extracts AST-based
information and runs static checks, with LLM assistance for triage, and was
confirmed by manual code review.
No hardware testing was performed.
Severity ?
7.8 (High)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
0871561055e666da421d779397efcc1e5e964cab , < 4b8e527aca357a6488680713bd88007cf8f547fe
(git)
Affected: 0871561055e666da421d779397efcc1e5e964cab , < 0bdee4118340c5a756220c1b29a7dab86bb0aa65 (git) Affected: 0871561055e666da421d779397efcc1e5e964cab , < 3a164f640953cc982804746e772d379171aff5c6 (git) Affected: 0871561055e666da421d779397efcc1e5e964cab , < f67d368d26764a357691b2b3a33d3cb55b435bfc (git) Affected: 0871561055e666da421d779397efcc1e5e964cab , < ba2c83167b215da30fa2aae56b140198cf8d8408 (git) |
||
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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