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CVE-2025-23147— i3c: Add NULL pointer check in i3c_master_queue_ibi()

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i3c_master_queue_ibi未检查ibi空指针，可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1546 · Event Triggered Execution

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< 1b54faa5f47fa7c642179744aeff03f0810dc62e affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< 09359e7c8751961937cb5fc50220969b0a4e1058 affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< 3ba402610843d7d15c7f3966a461deeeaff7fba4 affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< d83b0c03ef8fbea2f03029a1cc1f5041f0e1d47f affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< 6871a676aa534e8f218279672e0445c725f81026 affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< e6bba328578feb58c614c11868c259b40484c5fa affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< fe4a4fc179b7898055555a11685915473588392e affected
3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0< ff9d61db59bb27d16d3f872bff2620d50856b80c affected
… +12 more rows
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I. Basic Information for CVE-2025-23147

Vulnerability Information
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Vulnerability Title
i3c: Add NULL pointer check in i3c_master_queue_ibi()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i3c: Add NULL pointer check in i3c_master_queue_ibi() The I3C master driver may receive an IBI from a target device that has not been probed yet. In such cases, the master calls `i3c_master_queue_ibi()` to queue an IBI work task, leading to "Unable to handle kernel read from unreadable memory" and resulting in a kernel panic. Typical IBI handling flow: 1. The I3C master scans target devices and probes their respective drivers. 2. The target device driver calls `i3c_device_request_ibi()` to enable IBI and assigns `dev->ibi = ibi`. 3. The I3C master receives an IBI from the target device and calls `i3c_master_queue_ibi()` to queue the target device driver’s IBI handler task. However, since target device events are asynchronous to the I3C probe sequence, step 3 may occur before step 2, causing `dev->ibi` to be `NULL`, leading to a kernel panic. Add a NULL pointer check in `i3c_master_queue_ibi()` to prevent accessing an uninitialized `dev->ibi`, ensuring stability.
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i3c_master_queue_ibi未检查ibi空指针，可能导致空指针取消引用。
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 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 ~ 1b54faa5f47fa7c642179744aeff03f0810dc62e -
Linux Linux 5.0 -

II. Public POCs for CVE-2025-23147

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III. Intelligence Information for CVE-2025-23147

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Patches & Fixes for CVE-2025-23147 (9)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750 9.8 CRITICAL smb: client: fix UAF in decryption with multichannel
CVE-2025-37778 9.8 CRITICAL ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770 9.8 CRITICAL ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931 8.8 HIGH IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776 8.8 HIGH ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777 8.8 HIGH ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790 8.8 HIGH net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37774 7.8 HIGH slab: ensure slab->obj_exts is clear in a newly allocated slab page
CVE-2025-37789 7.8 HIGH net: openvswitch: fix nested key length validation in the set() action
CVE-2025-37779 7.8 HIGH lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920 7.8 HIGH netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919 7.8 HIGH netfilter: nf_tables: release flow rule object from commit path
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-37763 7.8 HIGH drm/imagination: take paired job reference
CVE-2022-49804 7.8 HIGH s390: avoid using global register for current_stack_pointer

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-23147

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