CVE-2022-50244
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e68432668ae75b4c814d160f6987ecb0681273 | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e5481428faf11c79b9c094dd24a1849bbf64ac | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < c4b2e35df919d99bbbed033c2fa0b607f9f463b5 | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 361412dae1690d4b5df6f92fc943cdc773c95cbc | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 22511eefa61db26e12c97dd7ada3071dbdfcb004 | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 139abd4c626a6f7ce02789ed5f73aa2256e0542b | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339 | affected |
| Linux | Linux | f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 02cd3032b154fa02fdf90e7467abaeed889330b2 | affected |
| Linux | Linux | 3.18 | affected |
| Linux | Linux | 0 < 3.18 | unaffected |
| Linux | Linux | 4.9.337 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.303 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.270 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.229 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.163 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
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
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