In the Linux kernel, the following vulnerability has been resolved: spi: spi-mem: Add fix to avoid divide error For some SPI flash memory operations, dummy bytes are not mandatory. For example, in Winbond SPINAND flash memory devices, the write_cache
and update_cache
operation variants have zero dummy bytes. Calculating the duration for SPI memory operations with zero dummy bytes causes a divide error when ncycles
is calculated in the spimemcalcopduration(). Add changes to skip the 'ncylcles' calculation for zero dummy bytes. Following divide error is fixed by this change: Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI ... ? dotrap+0xdb/0x100 ? doerrortrap+0x75/0xb0 ? spimemcalcopduration+0x56/0xb0 ? excdivideerror+0x3b/0x70 ? spimemcalcopduration+0x56/0xb0 ? asmexcdivideerror+0x1b/0x20 ? spimemcalcopduration+0x56/0xb0 ? spinandselectopvariant+0xee/0x190 [spinand] spinandmatchandinit+0x13e/0x1a0 [spinand] spinandmanufacturermatch+0x6e/0xa0 [spinand] spinandprobe+0x357/0x7f0 [spinand] ? kernfsactivate+0x87/0xd0 spimemprobe+0x7a/0xb0 spi_probe+0x7d/0x130
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-headers-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-image-unsigned-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-image-unsigned-6.14.0-1007-oem-dbgsym", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-ipu6-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-ipu7-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-iwlwifi-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-usbio-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-modules-vision-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-oem-6.14-headers-6.14.0-1007", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-oem-6.14-tools-6.14.0-1007", "binary_version": "6.14.0-1007.7" }, { "binary_name": "linux-tools-6.14.0-1007-oem", "binary_version": "6.14.0-1007.7" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-headers-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-image-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-image-6.14.0-24-generic-dbgsym", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-modules-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-riscv-6.14-headers-6.14.0-24", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-riscv-6.14-tools-6.14.0-24", "binary_version": "6.14.0-24.24.1~24.04.1" }, { "binary_name": "linux-tools-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1~24.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "bpftool", "binary_version": "7.6.0+6.14.0-24.24" }, { "binary_name": "linux-bpf-dev", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-buildinfo-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-buildinfo-6.14.0-24-generic-64k", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-cloud-tools-6.14.0-24", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-cloud-tools-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-cloud-tools-common", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-doc", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-headers-6.14.0-24", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-headers-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-headers-6.14.0-24-generic-64k", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-6.14.0-24-generic-dbgsym", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-unsigned-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-unsigned-6.14.0-24-generic-64k", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-unsigned-6.14.0-24-generic-64k-dbgsym", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-image-unsigned-6.14.0-24-generic-dbgsym", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-lib-rust-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-libc-dev", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-6.14.0-24-generic-64k", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-extra-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-ipu6-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-ipu7-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-iwlwifi-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-usbio-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-modules-vision-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-perf", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-source-6.14.0", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-tools-6.14.0-24", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-tools-6.14.0-24-generic", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-tools-6.14.0-24-generic-64k", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-tools-common", "binary_version": "6.14.0-24.24" }, { "binary_name": "linux-tools-host", "binary_version": "6.14.0-24.24" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-buildinfo-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-gcp-headers-6.14.0-1011", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-gcp-tools-6.14.0-1011", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-headers-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-headers-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-image-unsigned-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-image-unsigned-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-image-unsigned-6.14.0-1011-gcp-64k-dbgsym", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-image-unsigned-6.14.0-1011-gcp-dbgsym", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-modules-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-modules-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-modules-extra-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-modules-extra-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-tools-6.14.0-1011-gcp", "binary_version": "6.14.0-1011.11" }, { "binary_name": "linux-tools-6.14.0-1011-gcp-64k", "binary_version": "6.14.0-1011.11" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-1009-raspi", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-headers-6.14.0-1009-raspi", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-image-6.14.0-1009-raspi", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-image-6.14.0-1009-raspi-dbgsym", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-modules-6.14.0-1009-raspi", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-raspi-headers-6.14.0-1009", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-raspi-tools-6.14.0-1009", "binary_version": "6.14.0-1009.9" }, { "binary_name": "linux-tools-6.14.0-1009-raspi", "binary_version": "6.14.0-1009.9" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-cloud-tools-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-headers-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-image-unsigned-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-image-unsigned-6.14.0-1006-realtime-dbgsym", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-modules-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-modules-extra-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-modules-iwlwifi-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-realtime-cloud-tools-6.14.0-1006", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-realtime-headers-6.14.0-1006", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-realtime-tools-6.14.0-1006", "binary_version": "6.14.0-1006.6" }, { "binary_name": "linux-tools-6.14.0-1006-realtime", "binary_version": "6.14.0-1006.6" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "linux-buildinfo-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-headers-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-image-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-image-6.14.0-24-generic-dbgsym", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-modules-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-riscv-headers-6.14.0-24", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-riscv-tools-6.14.0-24", "binary_version": "6.14.0-24.24.1" }, { "binary_name": "linux-tools-6.14.0-24-generic", "binary_version": "6.14.0-24.24.1" } ] }