Detections
Analytics
CVE-2026-98681
high
Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races The invalidHandle, swapfile, oplock_break_cancelled, offload, and status_file_deleted fields are stored in the same bitfield byte in struct cifsFileInfo, but are updated in different code paths that may run simultaneously, and are protected by different locks. Since bitfield assignments generate byte-level read-modify-write operations, a modification to one flag can overwrite a concurrent modification to another flag. To avoid these races, convert these flags from a bitfield to separate bool fields.
References
https://git.kernel.org/stable/c/f255e87b4f7eda568c37d6eae5db1d1a8aca5968
https://git.kernel.org/stable/c/e961baf9c1a4f2e93a55f8eb2c6151fc27b96a4c
https://git.kernel.org/stable/c/d9d23d115610e0342e768f6cb525d91c7b154027
https://git.kernel.org/stable/c/7fa619367869be705942f087b2ecd209efc78fe1
https://git.kernel.org/stable/c/4165641d06ef44f3a31b77a28048b6c737e885e7
https://git.kernel.org/stable/c/3b8e7928cf1928555dc05d172dd02fb0e7692ec4
https://git.kernel.org/stable/c/3786ee67658a2c80fef2544e7de2cd329e043cf9
https://git.kernel.org/stable/c/19465a9aeb664f1d710d0d22c07c31bfb7c85446