CVE-2025-22065

MEDIUM EPSS 11.9%
Published Apr 16, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
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Published Apr 16, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: idpf: fix adapter NULL pointer dereference on reboot With SRIOV enabled, idpf ends up calling into idpf_remove() twice. First via idpf_shutdown() and then again when idpf_remove() calls into sriov_disable(), because the VF devices use the idpf driver, hence the same remove routine. When that happens, it is possible for the adapter to be NULL from the first call to idpf_remove(), leading to a NULL pointer dereference. echo 1 > /sys/class/net/<netif>/device/sriov_numvfs reboot BUG: kernel NULL pointer dereference, address: 0000000000000020 ... RIP: 0010:idpf_remove+0x22/0x1f0 [idpf] ... ? idpf_remove+0x22/0x1f0 [idpf] ? idpf_remove+0x1e4/0x1f0 [idpf] pci_device_remove+0x3f/0xb0 device_release_driver_internal+0x19f/0x200 pci_stop_bus_device+0x6d/0x90 pci_stop_and_remove_bus_device+0x12/0x20 pci_iov_remove_virtfn+0xbe/0x120 sriov_disable+0x34/0xe0 idpf_sriov_configure+0x58/0x140 [idpf] idpf_remove+0x1b9/0x1f0 [idpf] idpf_shutdown+0x12/0x30 [idpf] pci_device_shutdown+0x35/0x60 device_shutdown+0x156/0x200 ... Replace the direct idpf_remove() call in idpf_shutdown() with idpf_vc_core_deinit() and idpf_deinit_dflt_mbx(), which perform the bulk of the cleanup, such as stopping the init task, freeing IRQs, destroying the vports and freeing the mailbox. This avoids the calls to sriov_disable() in addition to a small netdev cleanup, and destroying workqueues, which don't seem to be required on shutdown.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
11.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.7  –  <6.12.23
linuxlinux_kernel*≥6.13  –  <6.13.11
linuxlinux_kernel*≥6.14  –  <6.14.2

References 4

  • git.kernel.org https://git.kernel.org/stable/c/4c9106f4906a85f6b13542d862e423bcdc118cc3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79618e952ef4dfa1a17ee0631d5549603fab58d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88a6d562e92a295648f8636acf2a6aa714241771
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9fc9b3dc0d0c189ed205acf1e5fbd73e0becc4d6
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4c9106f4906a85f6b13542d862e423bcdc118cc3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79618e952ef4dfa1a17ee0631d5549603fab58d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88a6d562e92a295648f8636acf2a6aa714241771
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9fc9b3dc0d0c189ed205acf1e5fbd73e0becc4d6
    Patch