Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 0871561055e666da421d779397efcc1e5e964cab, < 4b8e527aca357a6488680713bd88007cf8f547fe; >= 0871561055e666da421d779397efcc1e5e964cab, < 0bdee4118340c5a756220c1b29a7dab86bb0aa65; >= 0871561055e666da421d779397efcc1e5e964cab, < 3a164f640953cc982804746e772d379171aff5c6; >= 0871561055e666da421d779397efcc1e5e964cab, < f67d368d26764a357691b2b3a33d3cb55b435bfc; >= 0871561055e666da421d779397efcc1e5e964cab, < ba2c83167b215da30fa2aae56b140198cf8d8408 |
| Linux | Linux | 6.2 |
References
- https://git.kernel.org/stable/c/0bdee4118340c5a756220c1b29a7dab86bb0aa65Patch
- https://git.kernel.org/stable/c/3a164f640953cc982804746e772d379171aff5c6Patch
- https://git.kernel.org/stable/c/4b8e527aca357a6488680713bd88007cf8f547fePatch
- https://git.kernel.org/stable/c/ba2c83167b215da30fa2aae56b140198cf8d8408Patch
- https://git.kernel.org/stable/c/f67d368d26764a357691b2b3a33d3cb55b435bfcPatch
Timeline
- Published
- May 1, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Modified