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CVE-2025-21963

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CVE-2025-21963

Published: Apr 1, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acdirmax mount option User-provided mount parameter acdirmax of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE.

VendorProductVersions

Linux

Linux

affected
4c9f948142a550af416a2bfb5e56d29ce29e92cf - < 0c26edf477e093cefc41637f5bccc102e1a77399
affected
4c9f948142a550af416a2bfb5e56d29ce29e92cf - < 39d086bb3558da9640ef335f97453e01d32578a1
affected
4c9f948142a550af416a2bfb5e56d29ce29e92cf - < 9e438d0410a4002d24f420f2c28897ba2dc0af64
affected
4c9f948142a550af416a2bfb5e56d29ce29e92cf - < 2809a79bc64964ce02e0c5f2d6bd39b9d09bdb3c
affected
4c9f948142a550af416a2bfb5e56d29ce29e92cf - < 6124cbf73e3dea7591857dd63b8ccece28952afd

+1 more versions

Linux

Linux

affected
5.12
unaffected
0 - < 5.12
unaffected
5.15.180 - <= 5.15.*
unaffected
6.1.132 - <= 6.1.*
unaffected
6.6.84 - <= 6.6.*

+3 more versions

References

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