1. Open the attached "TextureCrash" project and build it to device
2. Open the built application and press "Load BC4 Scene"

Result: Application crashes with "Fatal signal 11 (SIGSEGV), code 1, fault addr 0xc2980010 in tid 30604 (UnityGfxDeviceW)"

Fixed in - 2018.1.0a1
Reproducible with - 2017.3.0p3, 2017.3.0a1, 2017.2.1p2, 2017.1.3f1

DUT:
Reproducible with:
Google Pixel*, OS:8.1.0, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:google/sailfish/sailfish:8.0.0/OPR3.170623.007/4286350:user/release-keys
Samsung SM G950U*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 540, Build:samsung/dreamqltesq/dreamqltesq:7.0/NRD90M/G950USQU1AQC8:user/release-keys
Samsung SM G928F*, OS:7.0, CPU:arm64-v8a, GPU:Mali-T760, Build:samsung/zenltexx/zenlte:7.0/NRD90M/G928FXXU3CQG2:user/release-keys
Xiaomi MI 5s*, OS:6.0.1, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:Xiaomi/capricorn/capricorn:6.0.1/MXB48T/V8.0.10.0.MAGCNDH:user/release-keys
Motorola XT1032*, OS:5.1, CPU:armeabi-v7a, GPU:Adreno (TM) 305, Build:motorola/falcon_retuglb/falcon_umts:5.1/LPBS23.13-58-2/2:user/release-keys
Samsung GT I9195*, OS:4.4.2, CPU:armeabi-v7a, GPU:Adreno (TM) 305, Build:samsung/serranoltexx/serranolte:4.4.2/KOT49H/I9195XXUCOD3:user/release-keys

Not reproducible with:
Google Galaxy Nexus*, OS:4.3, CPU:armeabi-v7a, GPU:PowerVR SGX 540, Build:google/yakju/maguro:4.3/JWR66Y/776638:user/release-keys