CVE-2025-37947

Summary

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: prevent out-of-bounds stream writes by validating *pos

ksmbd_vfs_stream_write() did not validate whether the write offset (*pos) was within the bounds of the existing stream data length (v_len). If *pos was greater than or equal to v_len, this could lead to an out-of-bounds memory write.

This patch adds a check to ensure *pos is less than v_len before proceeding. If the condition fails, -EINVAL is returned.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 7f61da79df86fd140c7768e668ad846bfa7ec8e1affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 04c8a38c60346bb5a7c49b276de7233f703ce9cbaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < d62ba16563a86aae052f96d270b3b6f78fca154caffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < e6356499fd216ed6343ae0363f4c9303f02c5034affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 0ca6df4f40cf4c32487944aaf48319cb6c25acccaffected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux6.1.139 <= 6.1.*unaffected
LinuxLinux6.6.91 <= 6.6.*unaffected
LinuxLinux6.12.29 <= 6.12.*unaffected
LinuxLinux6.14.7 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

CVE Program Container

Additional References

References