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CVE-2025-40089— cxl/features: Add check for no entries in cxl_feature_info

EPSS 0.03% · P8
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I. Basic Information for CVE-2025-40089

Vulnerability Information
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Vulnerability Title
cxl/features: Add check for no entries in cxl_feature_info
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cxl/features: Add check for no entries in cxl_feature_info cxl EDAC calls cxl_feature_info() to get the feature information and if the hardware has no Features support, cxlfs may be passed in as NULL. [ 51.957498] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 51.965571] #PF: supervisor read access in kernel mode [ 51.971559] #PF: error_code(0x0000) - not-present page [ 51.977542] PGD 17e4f6067 P4D 0 [ 51.981384] Oops: Oops: 0000 [#1] SMP NOPTI [ 51.986300] CPU: 49 UID: 0 PID: 3782 Comm: systemd-udevd Not tainted 6.17.0dj test+ #64 PREEMPT(voluntary) [ 51.997355] Hardware name: <removed> [ 52.009790] RIP: 0010:cxl_feature_info+0xa/0x80 [cxl_core] Add a check for cxlfs before dereferencing it and return -EOPNOTSUPP if there is no cxlfs created due to no hardware support.
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，该漏洞源于未检查cxlfs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

VendorProductAffected VersionsCPESubscribe
LinuxLinux eb5dfcb9e36d0e46089fec777d911313c1876fa3 ~ b8a69e3b1a460bf5d96dd53cbd121aa2cd346886 -
LinuxLinux 6.15 -

II. Public POCs for CVE-2025-40089

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III. Intelligence Information for CVE-2025-40089

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Same Patch Batch · Linux · 2025-10-30 · 20 CVEs total

CVE-2025-40096drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies
CVE-2025-40105vfs: Don't leak disconnected dentries on umount
CVE-2025-40104ixgbevf: fix mailbox API compatibility by negotiating supported features
CVE-2025-40103smb: client: Fix refcount leak for cifs_sb_tlink
CVE-2025-40102KVM: arm64: Prevent access to vCPU events before init
CVE-2025-40100btrfs: do not assert we found block group item when creating free space tree
CVE-2025-40101btrfs: fix memory leaks when rejecting a non SINGLE data profile without an RST
CVE-2025-40099cifs: parse_dfs_referrals: prevent oob on malformed input
CVE-2025-40098ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_get_acpi_mute_state()
CVE-2025-40097ALSA: hda: Fix missing pointer check in hda_component_manager_init function
CVE-2025-40086drm/xe: Don't allow evicting of BOs in same VM in array of VM binds
CVE-2025-40095usb: gadget: f_rndis: Refactor bind path to use __free()
CVE-2025-40094usb: gadget: f_acm: Refactor bind path to use __free()
CVE-2025-40093usb: gadget: f_ecm: Refactor bind path to use __free()
CVE-2025-40092usb: gadget: f_ncm: Refactor bind path to use __free()
CVE-2025-40090ksmbd: fix recursive locking in RPC handle list access
CVE-2025-40091ixgbe: fix too early devlink_free() in ixgbe_remove()
CVE-2025-40088hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp()
CVE-2025-40087NFSD: Define a proc_layoutcommit for the FlexFiles layout type

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40089

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