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CVE-2025-68288— usb: storage: Fix memory leak in USB bulk transport

EPSS 0.07% · P21
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I. Basic Information for CVE-2025-68288

Vulnerability Information
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Vulnerability Title
usb: storage: Fix memory leak in USB bulk transport
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: storage: Fix memory leak in USB bulk transport A kernel memory leak was identified by the 'ioctl_sg01' test from Linux Test Project (LTP). The following bytes were mainly observed: 0x53425355. When USB storage devices incorrectly skip the data phase with status data, the code extracts/validates the CSW from the sg buffer, but fails to clear it afterwards. This leaves status protocol data in srb's transfer buffer, such as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can lead to USB protocols leaks to user space through SCSI generic (/dev/sg*) interfaces, such as the one seen here when the LTP test requested 512 KiB. Fix the leak by zeroing the CSW data in srb's transfer buffer immediately after the validation of devices that skip data phase. Note: Differently from CVE-2018-1000204, which fixed a big leak by zero- ing pages at allocation time, this leak occurs after allocation, when USB protocol data is written to already-allocated sg pages.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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USB批量传输中存在内存泄漏，可能导致数据泄露。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux a45b599ad808c3c982fdcdc12b0b8611c2f92824 ~ 83f0241959831586d9b6d47f6bd5d3dec8f43bf0 -
LinuxLinux 4.17 -

II. Public POCs for CVE-2025-68288

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III. Intelligence Information for CVE-2025-68288

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Same Patch Batch · Linux · 2025-12-16 · 157 CVEs total

CVE-2025-682639.8 CRITICALksmbd: ipc: fix use-after-free in ipc_msg_send_request
CVE-2025-68259KVM: SVM: Don't skip unrelated instruction if INT3/INTO is replaced
CVE-2025-68250hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68251erofs: avoid infinite loops due to corrupted subpage compact indexes
CVE-2025-68252misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
CVE-2025-68253mm: don't spin in add_stack_record when gfp flags don't allow
CVE-2025-68254staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
CVE-2025-68255staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
CVE-2025-68256staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68257comedi: check device's attached status in compat ioctls
CVE-2025-68258comedi: multiq3: sanitize config options in multiq3_attach()
CVE-2025-68264ext4: refresh inline data size before write operations
CVE-2025-68282usb: gadget: udc: fix use-after-free in usb_gadget_state_work
CVE-2025-68281ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list
CVE-2025-68266bfs: Reconstruct file type when loading from disk
CVE-2025-68265nvme: fix admin request_queue lifetime
CVE-2025-68261ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock()
CVE-2025-68260rust_binder: fix race condition on death_list
CVE-2025-68249most: usb: hdm_probe: Fix calling put_device() before device initialization
CVE-2025-68262crypto: zstd - fix double-free in per-CPU stream cleanup

Showing top 20 of 157 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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