CVE-2025-40310

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw

There is race in amdgpu_amdkfd_device_fini_sw and interrupt.

if amdgpu_amdkfd_device_fini_sw run in b/w kfd_cleanup_nodes and

kfree(kfd), and KGD interrupt generated.

kernel panic log:

BUG: kernel NULL pointer dereference, address: 0000000000000098

amdgpu 0000:c8:00.0: amdgpu: Requesting 4 partitions through PSP

PGD d78c68067 P4D d78c68067

kfd kfd: amdgpu: Allocated 3969056 bytes on gart

PUD 1465b8067 PMD @

Oops: @002 [#1] SMP NOPTI

kfd kfd: amdgpu: Total number of KFD nodes to be created: 4

CPU: 115 PID: @ Comm: swapper/115 Kdump: loaded Tainted: G S W OE K

RIP: 0010:_raw_spin_lock_irqsave+0x12/0x40

Code: 89 e@ 41 5c c3 cc cc cc cc 66 66 2e Of 1f 84 00 00 00 00 00 OF 1f 40 00 Of 1f 44% 00 00 41 54 9c 41 5c fa 31 cO ba 01 00 00 00 <fO> OF b1 17 75 Ba 4c 89 e@ 41 Sc

89 c6 e8 07 38 5d

RSP: 0018: ffffc90@1a6b0e28 EFLAGS: 00010046

RAX: 0000000000000

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References