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CVE-2025-68763— crypto: starfive - Correctly handle return of sg_nents_for_len

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starfive加密驱动中未正确处理sg_nents_for_len返回值，可能导致缓冲区溢出。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.21% · P10

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 7883d1b28a2b0e62edcacea22de6b36a1918b15a< 6cd14414394b4f3d6e1ed64b8241d1fcc2271820 affected
7883d1b28a2b0e62edcacea22de6b36a1918b15a< 0c3854d65cc4402cb8c52d4d773450a06efecab6 affected
7883d1b28a2b0e62edcacea22de6b36a1918b15a< 1af5c973dd744e29fa22121f43e8646b7a7a71a7 affected
7883d1b28a2b0e62edcacea22de6b36a1918b15a< 9b3f71cf02e04cfaa482155e3078707fe7f8aef4 affected
7883d1b28a2b0e62edcacea22de6b36a1918b15a< e9eb52037a529fbb307c290e9951a62dd728b03d affected
6.5 affected
< 6.5 unaffected
6.6.120≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2025-68763

Vulnerability Information
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Vulnerability Title
crypto: starfive - Correctly handle return of sg_nents_for_len
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: starfive - Correctly handle return of sg_nents_for_len The return value of sg_nents_for_len was assigned to an unsigned long in starfive_hash_digest, causing negative error codes to be converted to large positive integers. Add error checking for sg_nents_for_len and return immediately on failure to prevent potential buffer overflows.
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starfive加密驱动中未正确处理sg_nents_for_len返回值，可能导致缓冲区溢出。
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 7883d1b28a2b0e62edcacea22de6b36a1918b15a ~ 6cd14414394b4f3d6e1ed64b8241d1fcc2271820 -
Linux Linux 6.5 -

II. Public POCs for CVE-2025-68763

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III. Intelligence Information for CVE-2025-68763

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Other References for CVE-2025-68763 (4)

Same Patch Batch · Linux · 2026-01-05 · 16 CVEs total

CVE-2025-68761 7.8 HIGH hfs: fix potential use after free in hfs_correct_next_unused_CNID()
CVE-2025-68764 7.8 HIGH NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
CVE-2025-68753 7.1 HIGH ALSA: firewire-motu: add bounds check in put_user loop for DSP events
CVE-2025-68752 iavf: Implement settime64 with -EOPNOTSUPP
CVE-2025-68751 s390/fpu: Fix false-positive kmsan report in fpu_vstl()
CVE-2025-68754 rtc: amlogic-a4: fix double free caused by devm
CVE-2025-68755 staging: most: remove broken i2c driver
CVE-2025-68756 block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock
CVE-2025-68757 drm/vgem-fence: Fix potential deadlock on release
CVE-2025-68758 backlight: led-bl: Add devlink to supplier LEDs
CVE-2025-68759 wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()
CVE-2025-68760 iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show
CVE-2025-68762 net: netpoll: initialize work queue before error checks
CVE-2025-68765 mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
CVE-2025-68766 irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68763

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