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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 82e68432668ae75b4c814d160f6987ecb0681273affectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 82e5481428faf11c79b9c094dd24a1849bbf64acaffectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < c4b2e35df919d99bbbed033c2fa0b607f9f463b5affectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 361412dae1690d4b5df6f92fc943cdc773c95cbcaffectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdecaffectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 22511eefa61db26e12c97dd7ada3071dbdfcb004affectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 139abd4c626a6f7ce02789ed5f73aa2256e0542baffectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339affectedf204e0b8cedd7da1dfcfd05ed6b7692737e24029 to < 02cd3032b154fa02fdf90e7467abaeed889330b2affected
Linux Linux
Default version status: affected
3.18affected0 to < 3.18unaffected4.9.337 to ≤ 4.9.*unaffected4.14.303 to ≤ 4.14.*unaffected4.19.270 to ≤ 4.19.*unaffected5.4.229 to ≤ 5.4.*unaffected5.10.163 to ≤ 5.10.*unaffected5.15.86 to ≤ 5.15.*unaffected6.0.16 to ≤ 6.0.*unaffected6.1.2 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected
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 ↗