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CVE-2025-21901

RDMA/bnxt_re: Add sanity checks on rdev validity

MEDIUM
5.5
CVSS Score
Published: April 1, 2025 at 03:26 PM UTC
Updated: August 5, 2026 at 12:44 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on rdev validity There is a possibility that ulp_irq_stop and ulp_irq_start callbacks will be called when the device is in detached state. This can cause a crash due to NULL pointer dereference as the rdev is already freed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.12 ≤ v < 6.12.186.12 ≤ v < 6.13.66.12 ≤ v < 6.146.13 ≤ v < 6.13.66.14 rc16.14 rc26.14 rc36.14 rc4cc5b9b48d44756a87170f3901c6c2fd99e6b89b2
Vendor states this is fixed in 8cb0eef46d70a99c88c26a1addb7fd955242e0e6 (fixed)
Vendor states this is fixed in aed1bc673907e3df372b317c10ff2f3582f8bf1a (fixed)
Vendor states this is fixed in f0df225d12fcb049429fb5bf5122afe143c2dd15 (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.18 (unaffected)
Vendor states this is fixed in 6.13.6 (unaffected)
Vendor states this is fixed in 6.14 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8cb0eef46d70a99c88c26a1addb7fd955242e0e6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/aed1bc673907e3df372b317c10ff2f3582f8bf1a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f0df225d12fcb049429fb5bf5122afe143c2dd15

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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