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CVE-2025-21923— HID: hid-steam: Fix use-after-free when detaching device

AI Predicted 6.5 Difficulty: Hard EPSS 0.15% · P36

Affected Version Matrix 7

VendorProductVersion RangeStatus
LinuxLinuxe1147961b2145fa61c3078a4a797d9576cde91ab< 026714ec7546de741826324a6a1914c91024d06caffected
3e38cbbfa0a128a9d64773240a9eb3bc7bae3b1a< a899adf7063c6745aaff1ec869f3c7f6329ed0a1affected
053fa3888d2a957f4db26c05e503f4c6b9570a30< ea3f18d2f02629653b7bfe42607737ccd1343e54affected
79504249d7e27cad4a3eeb9afc6386e418728ce0< e53fc232a65f7488ab75d03a5b95f06aaada7262affected
6.6.79< 6.6.83affected
6.12.16< 6.12.19affected
6.13.4< 6.13.7affected
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I. Basic Information for CVE-2025-21923

Vulnerability Information
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Vulnerability Title
HID: hid-steam: Fix use-after-free when detaching device
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the client_hdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input device. Though the cleanup cancels the deferred work, this was done before the client_hdev itself is cleaned up, so it gets rescheduled. This patch fixes the ordering to make sure the deferred work is properly canceled.
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hid-steam在分离设备时存在UAF。
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 e1147961b2145fa61c3078a4a797d9576cde91ab ~ 026714ec7546de741826324a6a1914c91024d06c -
LinuxLinux 6.6.79 ~ 6.6.83 -

II. Public POCs for CVE-2025-21923

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III. Intelligence Information for CVE-2025-21923

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Patches & Fixes for CVE-2025-21923 (2)

Same Patch Batch · Linux · 2025-04-01 · 93 CVEs total

CVE-2025-219478.1 HIGHksmbd: fix type confusion via race condition when using ipc_msg_send_request
CVE-2025-21926net: gso: fix ownership in __udp_gso_segment
CVE-2025-21932mm: abort vma_modify() on merge out of memory failure
CVE-2025-21935rapidio: add check for rio_add_net() in rio_scan_alloc_net()
CVE-2025-21937Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name()
CVE-2025-21936Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected()
CVE-2025-21939drm/xe/hmm: Don't dereference struct page pointers without notifier lock
CVE-2025-21938mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr
CVE-2025-21934rapidio: fix an API misues when rio_add_net() fails
CVE-2025-21928HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()
CVE-2025-21927nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
CVE-2025-21929HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove()
CVE-2025-21925llc: do not use skb_get() before dev_queue_xmit()
CVE-2025-21924net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an e
CVE-2025-21922ppp: Fix KMSAN uninit-value warning with bpf
CVE-2025-21920vlan: enforce underlying device type
CVE-2025-21921net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device
CVE-2025-21919sched/fair: Fix potential memory corruption in child_cfs_rq_on_list
CVE-2025-21918usb: typec: ucsi: Fix NULL pointer access
CVE-2025-21917usb: renesas_usbhs: Flush the notify_hotplug_work

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21923

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