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CVE-2025-38277— mtd: nand: ecc-mxic: Fix use of uninitialized variable ret

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nand-ecc-mxic中的未初始化变量问题，可能导致不可预测结果。

AI Predicted 5.5 Difficulty: Hard EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 48e6633a9fa2400b53a964358753769f291a7eb0< 4d9d6e4be09472aa72953caca3dbefdc27846170 affected
48e6633a9fa2400b53a964358753769f291a7eb0< a0d9d9b5a4634e146ae41cb25667322e5c7d74d2 affected
48e6633a9fa2400b53a964358753769f291a7eb0< 7a23cc510ecaabab4f6df7e9d910d16e279b72ad affected
48e6633a9fa2400b53a964358753769f291a7eb0< 49482f4a39620f6afedcd3f6aa9e0d558b6a460b affected
48e6633a9fa2400b53a964358753769f291a7eb0< d95846350aac72303036a70c4cdc69ae314aa26d affected
5.18 affected
< 5.18 unaffected
6.1.142≤ 6.1.* unaffected
… +4 more rows
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I. Basic Information for CVE-2025-38277

Vulnerability Information
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Vulnerability Title
mtd: nand: ecc-mxic: Fix use of uninitialized variable ret
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mtd: nand: ecc-mxic: Fix use of uninitialized variable ret If ctx->steps is zero, the loop processing ECC steps is skipped, and the variable ret remains uninitialized. It is later checked and returned, which leads to undefined behavior and may cause unpredictable results in user space or kernel crashes. This scenario can be triggered in edge cases such as misconfigured geometry, ECC engine misuse, or if ctx->steps is not validated after initialization. Initialize ret to zero before the loop to ensure correct and safe behavior regardless of the ctx->steps value. Found by Linux Verification Center (linuxtesting.org) with SVACE.
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nand-ecc-mxic中的未初始化变量问题，可能导致不可预测结果。
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 48e6633a9fa2400b53a964358753769f291a7eb0 ~ 4d9d6e4be09472aa72953caca3dbefdc27846170 -
Linux Linux 5.18 -

II. Public POCs for CVE-2025-38277

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III. Intelligence Information for CVE-2025-38277

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Same Patch Batch · Linux · 2025-07-10 · 84 CVEs total

CVE-2025-38325 9.8 CRITICAL ksmbd: add free_transport ops in ksmbd connection
CVE-2025-38290 8.8 HIGH wifi: ath12k: fix node corruption in ar->arvifs list
CVE-2025-38291 8.8 HIGH wifi: ath12k: Prevent sending WMI commands to firmware during firmware crash
CVE-2025-38283 8.8 HIGH hisi_acc_vfio_pci: bugfix live migration function without VF device driver
CVE-2025-38293 8.8 HIGH wifi: ath11k: fix node corruption in ar->arvifs list
CVE-2025-38292 8.8 HIGH wifi: ath12k: fix invalid access to memory
CVE-2025-38343 8.3 HIGH wifi: mt76: mt7996: drop fragments with multicast or broadcast RA
CVE-2025-38333 7.8 HIGH f2fs: fix to bail out in get_new_segment()
CVE-2025-38273 7.8 HIGH net: tipc: fix refcount warning in tipc_aead_encrypt
CVE-2025-38276 7.8 HIGH fs/dax: Fix "don't skip locked entries when scanning entries"
CVE-2025-38341 7.8 HIGH eth: fbnic: avoid double free when failing to DMA-map FW msg
CVE-2025-38346 7.8 HIGH ftrace: Fix UAF when lookup kallsym after ftrace disabled
CVE-2025-38270 7.8 HIGH net: drv: netdevsim: don't napi_complete() from netpoll
CVE-2025-38321 7.8 HIGH smb: Log an error when close_all_cached_dirs fails
CVE-2025-38306 7.8 HIGH fs/fhandle.c: fix a race in call of has_locked_children()
CVE-2025-38303 7.8 HIGH Bluetooth: eir: Fix possible crashes on eir_create_adv_data
CVE-2025-38278 7.8 HIGH octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
CVE-2025-38339 7.8 HIGH powerpc/bpf: fix JIT code size calculation of bpf trampoline
CVE-2025-38317 7.8 HIGH wifi: ath12k: Fix buffer overflow in debugfs
CVE-2025-38287 7.5 HIGH IB/cm: Drop lockdep assert and WARN when freeing old msg

Showing top 20 of 84 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38277

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