CVE-2025-71151

Summary

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

cifs: Fix memory and information leak in smb3_reconfigure()

In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the function returns immediately without freeing and erasing the newly allocated new_password and new_password2. This causes both a memory leak and a potential information leak.

Fix this by calling kfree_sensitive() on both password buffers before returning in this error case.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux880a661e67648a3ffe85405e8de5f50650a3c0b2 < bc390b2737205163e48cc1655f6a0c8cd55b02fcaffected
LinuxLinux0e4145774c016530bf99afb3675a1a0593c35642 < 5679cc90bb5415801fa29041da0319d9e15d295daffected
LinuxLinux0f0e357902957fba28ed31bde0d6921c6bd1485d < bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6affected
LinuxLinux0f0e357902957fba28ed31bde0d6921c6bd1485d < cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8daffected
LinuxLinux674ba43944dab8e8f87434e25d9d10c5152584bcaffected
LinuxLinux6.6.64 < 6.6.120affected
LinuxLinux6.12.2 < 6.12.64affected
LinuxLinux6.11.11 < 6.12affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux6.6.120 <= 6.6.*unaffected
LinuxLinux6.12.64 <= 6.12.*unaffected
LinuxLinux6.18.3 <= 6.18.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References