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CVE-2025-21967— ksmbd: fix use-after-free in ksmbd_free_work_struct

EPSS 0.06% · P18
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I. Basic Information for CVE-2025-21967

Vulnerability Information
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Vulnerability Title
ksmbd: fix use-after-free in ksmbd_free_work_struct
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_free_work_struct ->interim_entry of ksmbd_work could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock break wait is needed.
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ksmbd_free_work_struct中存在释放后重用问题。
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 0626e6641f6b467447c81dd7678a69c66f7746cf ~ fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3 -
LinuxLinux 5.15 -

II. Public POCs for CVE-2025-21967

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III. Intelligence Information for CVE-2025-21967

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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-2025-21925llc: do not use skb_get() before dev_queue_xmit()
CVE-2025-21931hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio
CVE-2025-21934rapidio: fix an API misues when rio_add_net() fails
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-2025-21933arm: pgtable: fix NULL pointer dereference issue
CVE-2025-21927nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
CVE-2025-21926net: gso: fix ownership in __udp_gso_segment
CVE-2025-21928HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()
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-2025-21923HID: hid-steam: Fix use-after-free when detaching device
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 → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21967

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