Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于smb3_reconfigure函数在失败时未释放密码缓冲区，可能导致内存和信息泄露。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 880a661e67648a3ffe85405e8de5f50650a3c0b2< bc390b2737205163e48cc1655f6a0c8cd55b02fc affected
0e4145774c016530bf99afb3675a1a0593c35642< 5679cc90bb5415801fa29041da0319d9e15d295d affected
0f0e357902957fba28ed31bde0d6921c6bd1485d< bb82aaee16907dc4d0b9b0ca7953ceb3edc328c6 affected
0f0e357902957fba28ed31bde0d6921c6bd1485d< cb6d5aa9c0f10074f1ad056c3e2278ad2cc7ec8d affected
674ba43944dab8e8f87434e25d9d10c5152584bc affected
6.6.64< 6.6.120 affected
6.12.2< 6.12.64 affected
6.11.11< 6.12 affected
… +6 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-71151

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
cifs: Fix memory and information leak in smb3_reconfigure()
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于smb3_reconfigure函数在失败时未释放密码缓冲区，可能导致内存和信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 880a661e67648a3ffe85405e8de5f50650a3c0b2 ~ bc390b2737205163e48cc1655f6a0c8cd55b02fc -
Linux Linux 6.13 -

II. Public POCs for CVE-2025-71151

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-71151

请登录查看更多情报信息。

Same Patch Batch · Linux · 2026-01-23 · 34 CVEs total

CVE-2026-22984 9.8 CRITICAL libceph: prevent potential out-of-bounds reads in handle_auth_done()
CVE-2025-71159 9.8 CRITICAL btrfs: fix use-after-free warning in btrfs_get_or_create_delayed_node()
CVE-2025-71145 7.8 HIGH usb: phy: isp1301: fix non-OF device reference imbalance
CVE-2026-22980 7.8 HIGH nfsd: provide locking for v4_end_grace
CVE-2026-22988 7.8 HIGH arp: do not assume dev_hard_header() does not change skb->head
CVE-2025-71158 7.8 HIGH gpio: mpsse: ensure worker is torn down
CVE-2025-71155 7.8 HIGH KVM: s390: Fix gmap_helper_zap_one_page() again
CVE-2025-71146 7.5 HIGH netfilter: nf_conncount: fix leaked ct in error paths
CVE-2025-71161 7.5 HIGH dm-verity: disable recursive forward error correction
CVE-2026-22990 7.5 HIGH libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
CVE-2026-22991 7.5 HIGH libceph: make free_choose_arg_map() resilient to partial allocation
CVE-2026-22992 7.5 HIGH libceph: return the handler error from mon_handle_auth_done()
CVE-2025-71150 7.5 HIGH ksmbd: Fix refcount leak when invalid session is found on session lookup
CVE-2026-22989 nfsd: check that server is running in unlock_filesystem
CVE-2026-22993 idpf: Fix RSS LUT NULL ptr issue after soft reset
CVE-2026-22987 net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
CVE-2026-22986 gpiolib: fix race condition for gdev->srcu
CVE-2026-22994 bpf: Fix reference count leak in bpf_prog_test_run_xdp()
CVE-2026-22985 idpf: Fix RSS LUT NULL pointer crash on early ethtool operations
CVE-2026-22995 ublk: fix use-after-free in ublk_partition_scan_work

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-71151

No comments yet

Leave a comment