Description
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
If device_register() fails in cxl_pci_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device.
As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register fails.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 82e68432668ae75b4c814d160f6987ecb0681273; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 82e5481428faf11c79b9c094dd24a1849bbf64ac; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < c4b2e35df919d99bbbed033c2fa0b607f9f463b5; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 361412dae1690d4b5df6f92fc943cdc773c95cbc; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 22511eefa61db26e12c97dd7ada3071dbdfcb004; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 139abd4c626a6f7ce02789ed5f73aa2256e0542b; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339; >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029, < 02cd3032b154fa02fdf90e7467abaeed889330b2 |
| Linux | Linux | 3.18 |
References
- https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2Patch
- https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdecPatch
- https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542bPatch
- https://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004Patch
- https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339Patch
- https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbcPatch
- https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64acPatch
- https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273Patch
- https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5Patch
Timeline
- Published
- Sep 15, 2025
- Last modified
- Nov 5, 2026
- NVD status
- Analyzed