CVE-2025-39822 (GCVE-0-2025-39822)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2025-09-16 13:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: fix signedness in this_len calculation When importing and using buffers, buf->len is considered unsigned. However, buf->len is converted to signed int when committing. This can lead to unexpected behavior if the buffer is large enough to be interpreted as a negative value. Make min_t calculation unsigned.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c64eff368ac676e8540344d27a3de47e0ad90d21
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4f411c068402c370c4f9a9d4950a97af97bbbb1
Impacted products
Vendor Product Version
Linux Linux Version: ae98dbf43d755b4e111fcd086e53939bef3e9a1a
Version: ae98dbf43d755b4e111fcd086e53939bef3e9a1a
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   Linux Linux Version: 6.12
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    "datePublished": "2025-09-16T13:00:21.533Z",
    "dateReserved": "2025-04-16T07:20:57.139Z",
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