Description
In the Linux kernel, the following vulnerability has been resolved: net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues() of_reserved_mem_lookup() may return NULL if the reserved memory region referenced by the "memory-region" phandle is not found in the reserved memory table (e.g. due to a misconfigured DTS or a removed memory-region node). The current code dereferences the returned pointer without checking for NULL, leading to a kernel NULL pointer dereference at the following lines: dma_addr = rmem->base; // line 1156 num_desc = div_u64(rmem->size, buf_size); // line 1160 Add a NULL check after of_reserved_mem_lookup() and return -ENODEV if the lookup fails, which is consistent with the existing error handling for of_parse_phandle() failure in the same code block.
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
3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b to < 01f7d4b504580664d36faea5671cde5e3f0d8a5baffected3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b to < cdb96c42db7b256348f9b57718debfaa4bca6b39affected3a1ce9e3d01bbf3912c3e3f81cb554d558eb715b to < f9f25118faa4dd2b6e3d14a03d123bbdbd59925daffected
Linux Linux
Default version status: affected
6.16affected0 to < 6.16unaffected6.18.36 to ≤ 6.18.*unaffected7.0.13 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected