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.
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/0bdee4118340c5a756220c1b29a7dab86bb0aa65 Patch
- git.kernel.org/stable/c/3a164f640953cc982804746e772d379171aff5c6 Patch
- git.kernel.org/stable/c/4b8e527aca357a6488680713bd88007cf8f547fe Patch
- git.kernel.org/stable/c/ba2c83167b215da30fa2aae56b140198cf8d8408 Patch
- git.kernel.org/stable/c/f67d368d26764a357691b2b3a33d3cb55b435bfc Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 13 November 2026
- CWE
- CWE-415
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