In the Linux kernel, the following vulnerability has been resolved:

drm/radeon: fix a possible null pointer dereference

In radeon_fp_native_mode(), the return value of drm_mode_duplicate()
is assigned to mode, which will lead to a NULL pointer dereference
on failure of drm_mode_duplicate(). Add a check to avoid npd.

The failure status of drm_cvt_mode() on the other path is checked too.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-48710
• https://git.kernel.org/stable/c/140d9807b96e1303f6f2675a7ae8710a2094bd17
• https://git.kernel.org/stable/c/16a0f0b63c4c7eb46fc4c3f00bf2836e6ee46a9f
• https://git.kernel.org/stable/c/28fd384c78d7d8ed8af0d086d778c3e438ba7f60
• https://git.kernel.org/stable/c/7b7fba107b2c4ec7673d0f45bdbb9d1af697d9b9
• https://git.kernel.org/stable/c/8a89bfeef9abe93371e3ea8796377f2d132eee29
• https://git.kernel.org/stable/c/a2b28708b645c5632dc93669ab06e97874c8244f
• https://git.kernel.org/stable/c/b33f7d99c9226892c7794dc2500fae35966020c9
• https://git.kernel.org/stable/c/e938d24f0b7392e142b8aa434f18590d99dbe479
• https://git.kernel.org/stable/c/fee8ae0a0bb66eb7730c22f44fbd7203f63c2eab