CVE-2026-74646
misc: fastrpc: take fl->lock when moving mmaps on interrupted invoke
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: take fl->lock when moving mmaps on interrupted invoke When an invoke is interrupted by a signal, wait_for_completion_interruptible() returns -ERESTARTSYS and fastrpc_internal_invoke() moves every buffer from fl->mmaps onto cctx->invoke_interrupted_mmaps. This list_del()/list_add_tail() walk runs without holding fl->lock, the lock that serialises fl->mmaps in fastrpc_req_mmap() and fastrpc_req_munmap() everywhere else. Take fl->lock around the move, matching every other fl->mmaps accessor.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2026 |
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Affected Versions
Linux / Linux
76e8e4ace1ed2c97dba3b1370e0e105e07c572bc < 3f265e405e5ef85030c3777262e18bb556bc8724 76e8e4ace1ed2c97dba3b1370e0e105e07c572bc < a902fe1f80f58a2335b6be1131866f827ec44d1a 76e8e4ace1ed2c97dba3b1370e0e105e07c572bc < af6345159abcbaa550518f31990d2a9558c2d369 76e8e4ace1ed2c97dba3b1370e0e105e07c572bc < efd02f8d1a7449f15809bc18d3cd41aafea75d7e 76e8e4ace1ed2c97dba3b1370e0e105e07c572bc < b85a0e91d7d6cd06a53c881a46f749cfcef416a2
Linux / Linux
6.2
References
git.kernel.org: https://git.kernel.org/stable/c/3f265e405e5ef85030c3777262e18bb556bc8724 git.kernel.org: https://git.kernel.org/stable/c/a902fe1f80f58a2335b6be1131866f827ec44d1a git.kernel.org: https://git.kernel.org/stable/c/af6345159abcbaa550518f31990d2a9558c2d369 git.kernel.org: https://git.kernel.org/stable/c/efd02f8d1a7449f15809bc18d3cd41aafea75d7e git.kernel.org: https://git.kernel.org/stable/c/b85a0e91d7d6cd06a53c881a46f749cfcef416a2