Medium 5.5Published Jan 23, 2026

CVE-2025-71151cifs: Fix memory and information leak in smb3_reconfigure()

Updated under an hour ago (Oct 28, 2026, 7:40 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 880a661e67648a3ffe85405e8de5f50650a3c0b2 before bc390b2737205163e48cc1655f6a0c8cd55b02fc; from 0e4145774c016530bf99afb3675a1a0593c35642 before 5679cc90bb5415801fa29041da0319d9e15d295d; from 0f0e357902957fba28ed31bde0d6921c6bd1485d before bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6; from 0f0e357902957fba28ed31bde0d6921c6bd1485d before cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d; 674ba43944dab8e8f87434e25d9d10c5152584bc; from 6.6.64 before 6.6.120; from 6.12.2 before 6.12.64; from 6.11.11 before 6.12	CNA record
linux linux_kernel linux:linux_kernel	from 6.6.64 before 6.6.120; from 6.11.11 before 6.12; from 6.12.2 before 6.12.64; from 6.13 before 6.18.3; 6.19; 6.19	NVD

References

References

https://git.kernel.org/stable/c/bc390b2737205163e48cc1655f6a0c8cd55b02fc	patch
https://git.kernel.org/stable/c/5679cc90bb5415801fa29041da0319d9e15d295d	patch
https://git.kernel.org/stable/c/bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6	patch
https://git.kernel.org/stable/c/cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.