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CVE-2025-22068— ublk: make sure ubq->canceling is set when queue is frozen

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，该漏洞源于队列冻结时未设置ubq->canceling，可能导致释放后使用。

CVSS 7.8 · High EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1206

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 216c8f5ef0f209a3797292c487bdaa6991ab4b92< 7e3497d7dacb5aee69dd9be842b778083cae0e75 affected
216c8f5ef0f209a3797292c487bdaa6991ab4b92< 5491400589e7572c2d2627ed6384302f7672aa1d affected
216c8f5ef0f209a3797292c487bdaa6991ab4b92< 9158359015f0eda00e521e35b7bc7ebce176aebf affected
216c8f5ef0f209a3797292c487bdaa6991ab4b92< 8741d0737921ec1c03cf59aebf4d01400c2b461a affected
6.7 affected
< 6.7 unaffected
6.12.23≤ 6.12.* unaffected
6.13.11≤ 6.13.* unaffected
… +2 more rows
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I. Basic Information for CVE-2025-22068

Vulnerability Information
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Vulnerability Title
ublk: make sure ubq->canceling is set when queue is frozen
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ublk: make sure ubq->canceling is set when queue is frozen Now ublk driver depends on `ubq->canceling` for deciding if the request can be dispatched via uring_cmd & io_uring_cmd_complete_in_task(). Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done(). So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于队列冻结时未设置ubq->canceling，可能导致释放后使用。
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 216c8f5ef0f209a3797292c487bdaa6991ab4b92 ~ 7e3497d7dacb5aee69dd9be842b778083cae0e75 -
Linux Linux 6.7 -

II. Public POCs for CVE-2025-22068

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III. Intelligence Information for CVE-2025-22068

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Other References for CVE-2025-22068 (4)

Same Patch Batch · Linux · 2025-04-16 · 127 CVEs total

CVE-2025-22021 10.0 CRITICAL netfilter: socket: Lookup orig tuple for IPv6 SNAT
CVE-2025-22077 9.8 CRITICAL Revert "smb: client: fix TCP timers deadlock after rmmod"
CVE-2025-22110 9.8 CRITICAL netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error
CVE-2025-22088 9.8 CRITICAL RDMA/erdma: Prevent use-after-free in erdma_accept_newconn()
CVE-2025-22118 8.8 HIGH ice: validate queue quanta parameters to prevent OOB access
CVE-2025-22074 8.8 HIGH ksmbd: fix r_count dec/increment mismatch
CVE-2025-22040 8.8 HIGH ksmbd: fix session use-after-free in multichannel connection
CVE-2025-22041 8.8 HIGH ksmbd: fix use-after-free in ksmbd_sessions_deregister()
CVE-2025-22039 8.8 HIGH ksmbd: fix overflow in dacloffset bounds check
CVE-2024-58096 8.8 HIGH wifi: ath11k: add srng->lock for ath11k_hal_srng_* in monitor mode
CVE-2025-22086 8.8 HIGH RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow
CVE-2025-23133 8.8 HIGH wifi: ath11k: update channel list in reg notifier instead reg worker
CVE-2025-22117 8.7 HIGH ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()
CVE-2025-22108 8.6 HIGH bnxt_en: Mask the bd_cnt field in the TX BD properly
CVE-2025-22121 8.4 HIGH ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
CVE-2025-22080 8.4 HIGH fs/ntfs3: Prevent integer overflow in hdr_first_de()
CVE-2025-22038 8.3 HIGH ksmbd: validate zero num_subauth before sub_auth is accessed
CVE-2025-22042 8.1 HIGH ksmbd: add bounds check for create lease context
CVE-2025-22043 8.1 HIGH ksmbd: add bounds check for durable handle context
CVE-2025-22124 7.8 HIGH md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb

Showing top 20 of 127 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-22068

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