CVE-2022-49254 Information

Description

In the Linux kernel the following vulnerability has been resolved:

media: ti-vpe: cal: Fix a NULL pointer dereference in cal_ctx_v4l2_init_formats()

In cal_ctx_v4l2_init_formats() devm_kzalloc() is assigned to ctx->active_fmt and there is a dereference of it after that which could lead to NULL pointer dereference on failure of devm_kzalloc().

Fix this bug by adding a NULL check of ctx->active_fmt.

This bug was found by a static analyzer.

Builds with ‘make allyesconfig’ show no new warnings and our static analyzer no longer warns about this code.

Reference

https://git.kernel.org/stable/c/1381f1a629a090c251965edb56f849ad648414a4 https://git.kernel.org/stable/c/91e2805579ab0783eed53acc2bf9fb553e939004 https://git.kernel.org/stable/c/aa613ac270292e102503e9767882e39200efe608 https://git.kernel.org/stable/c/abd77889851d2ead0d0c9c4d29f1808801477b00