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.
Product status
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 82e68432668ae75b4c814d160f6987ecb0681273
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 82e5481428faf11c79b9c094dd24a1849bbf64ac
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before c4b2e35df919d99bbbed033c2fa0b607f9f463b5
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 361412dae1690d4b5df6f92fc943cdc773c95cbc
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 22511eefa61db26e12c97dd7ada3071dbdfcb004
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 139abd4c626a6f7ce02789ed5f73aa2256e0542b
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 (git) before 02cd3032b154fa02fdf90e7467abaeed889330b2
3.18
Any version before 3.18
4.9.337 (semver)
4.14.303 (semver)
4.19.270 (semver)
5.4.229 (semver)
5.10.163 (semver)
5.15.86 (semver)
6.0.16 (semver)
6.1.2 (semver)
6.2 (original_commit_for_fix)
References
git.kernel.org/...c/82e68432668ae75b4c814d160f6987ecb0681273
git.kernel.org/...c/82e5481428faf11c79b9c094dd24a1849bbf64ac
git.kernel.org/...c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5
git.kernel.org/...c/361412dae1690d4b5df6f92fc943cdc773c95cbc
git.kernel.org/...c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec
git.kernel.org/...c/22511eefa61db26e12c97dd7ada3071dbdfcb004
git.kernel.org/...c/139abd4c626a6f7ce02789ed5f73aa2256e0542b
git.kernel.org/...c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339
git.kernel.org/...c/02cd3032b154fa02fdf90e7467abaeed889330b2
