Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 82e68432668ae75b4c814d160f6987ecb0681273; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 82e5481428faf11c79b9c094dd24a1849bbf64ac; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before c4b2e35df919d99bbbed033c2fa0b607f9f463b5; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 361412dae1690d4b5df6f92fc943cdc773c95cbc; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 22511eefa61db26e12c97dd7ada3071dbdfcb004; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 139abd4c626a6f7ce02789ed5f73aa2256e0542b; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339; affected f204e0b8cedd7da1dfcfd05ed6b7692737e24029 before 02cd3032b154fa02fdf90e7467abaeed889330b2 |
| Linux / Linux | affected 3.18; unaffected 0 before 3.18; unaffected 4.9.337 through 4.9.*; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273
- https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64ac
- https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5
- https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbc
- https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec
- https://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004
- https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542b
- https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339
- https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2