CVE-2026-98860
UnratedPublished 2026-10-18
CVSS
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Unrated
EPSS
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exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-98860?
In the Linux kernel, the following vulnerability has been resolved: HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request As reported by Sashiko: If a transport driver encounters a hardware error and returns a negative error code such as -EPIPE, ret is implicitly promoted to size_t when compared against size. This causes the negative error code to evaluate as a large positive number, making the (ret > size) condition true. This silently converts the hardware error into a success return value and copies the unmodified buffer back, which could leave BPF programs operating on uninitialized or stale data. Fix this by casting size into ssize_t to return the actual negative error code.
CVSS Score Explained
No CVSS score available for this CVE yet.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://git.kernel.org/stable/c/3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c
- ›https://git.kernel.org/stable/c/8b85ef0f561039e249c3f883c5280a1449c6dbee
- ›https://git.kernel.org/stable/c/97be6396817bd3b11d06239010d27902940bfaa9
- ›https://git.kernel.org/stable/c/f9f808227554b2c116fd07dd2328ecd74ea3f411
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