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CVE-2025-39788— scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE

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HCI_UTRL_NEXUS_TYPE编程错误，可能导致未定义行为。

AI Predicted 3.7 Difficulty: Theoretical EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 55f4b1f73631a0817717fe6e98517de51b4c3527< 01510a9e8222f11cce064410f3c2fcf0756c0a08 affected
55f4b1f73631a0817717fe6e98517de51b4c3527< 098b2c8ee208c77126839047b9e6e1925bb35baa affected
55f4b1f73631a0817717fe6e98517de51b4c3527< c1f025da8f370a015e412b55cbcc583f91de8316 affected
55f4b1f73631a0817717fe6e98517de51b4c3527< 6d53b2a134da77eb7fe65c5c7c7a3c193539a78a affected
55f4b1f73631a0817717fe6e98517de51b4c3527< dc8fb963742f1a38d284946638f9358bdaa0ddee affected
55f4b1f73631a0817717fe6e98517de51b4c3527< 5b9f1ef293428ea9c0871d96fcec2a87c4445832 affected
55f4b1f73631a0817717fe6e98517de51b4c3527< 01aad16c2257ab8ff33b152b972c9f2e1af47912 affected
5.9 affected
… +8 more rows
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I. Basic Information for CVE-2025-39788

Vulnerability Information
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Vulnerability Title
scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE On Google gs101, the number of UTP transfer request slots (nutrs) is 32, and in this case the driver ends up programming the UTRL_NEXUS_TYPE incorrectly as 0. This is because the left hand side of the shift is 1, which is of type int, i.e. 31 bits wide. Shifting by more than that width results in undefined behaviour. Fix this by switching to the BIT() macro, which applies correct type casting as required. This ensures the correct value is written to UTRL_NEXUS_TYPE (0xffffffff on gs101), and it also fixes a UBSAN shift warning: UBSAN: shift-out-of-bounds in drivers/ufs/host/ufs-exynos.c:1113:21 shift exponent 32 is too large for 32-bit type 'int' For consistency, apply the same change to the nutmrs / UTMRL_NEXUS_TYPE write.
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HCI_UTRL_NEXUS_TYPE编程错误，可能导致未定义行为。
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 55f4b1f73631a0817717fe6e98517de51b4c3527 ~ 01510a9e8222f11cce064410f3c2fcf0756c0a08 -
Linux Linux 5.9 -

II. Public POCs for CVE-2025-39788

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III. Intelligence Information for CVE-2025-39788

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Same Patch Batch · Linux · 2025-09-11 · 54 CVEs total

CVE-2025-39758 9.8 CRITICAL RDMA/siw: Fix the sendmsg byte count in siw_tcp_sendpages
CVE-2025-39761 8.8 HIGH wifi: ath12k: Decrement TID on RX peer frag setup error handling
CVE-2025-39750 8.8 HIGH wifi: ath12k: Correct tid cleanup when tid setup fails
CVE-2025-39790 8.4 HIGH bus: mhi: host: Detect events pointing to unexpected TREs
CVE-2025-39791 7.8 HIGH dm: dm-crypt: Do not partially accept write BIOs with zoned targets
CVE-2025-39786 7.8 HIGH iio: adc: ad7173: fix channels index for syscalib_mode
CVE-2025-39779 7.8 HIGH btrfs: subpage: keep TOWRITE tag until folio is cleaned
CVE-2025-39787 7.8 HIGH soc: qcom: mdt_loader: Ensure we don't read past the ELF header
CVE-2025-39740 7.8 HIGH drm/xe/migrate: prevent potential UAF
CVE-2025-39785 7.8 HIGH drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local
CVE-2025-39780 7.8 HIGH sched/ext: Fix invalid task state transitions on class switch
CVE-2025-39770 7.5 HIGH net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM
CVE-2025-39738 7.3 HIGH btrfs: do not allow relocation of partially dropped subvolumes
CVE-2025-39789 7.3 HIGH crypto: x86/aegis - Add missing error checks
CVE-2025-39776 7.0 HIGH mm/debug_vm_pgtable: clear page table entries at destroy_args()
CVE-2025-39769 bnxt_en: Fix lockdep warning during rmmod
CVE-2025-39771 regulator: pca9450: Use devm_register_sys_off_handler
CVE-2025-39766 net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit
CVE-2025-39768 net/mlx5: HWS, fix complex rules rehash error flow
CVE-2025-39772 drm/hisilicon/hibmc: fix the hibmc loaded failed bug

Showing top 20 of 54 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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