In the Linux kernel, the following vulnerability has been resolved: of/irq: Prevent device address out-of-bounds read in interrupt map walk When ofirqparseraw() is invoked with a device address smaller than the interrupt parent node (from #address-cells property), KASAN detects the following out-of-bounds read when populating the initial match table (dyndbg="func ofirqparse* +p"): OF: ofirqparseone: dev=/soc@0/picasso/watchdog, index=0 OF: parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2 OF: intspec=4 OF: ofirqparseraw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2 OF: -> addrsize=3 ================================================================== BUG: KASAN: slab-out-of-bounds in ofirqparseraw+0x2b8/0x8d0 Read of size 4 at addr ffffff81beca5608 by task bash/764 CPU: 1 PID: 764 Comm: bash Tainted: G O 6.1.67-484c613561-nokiasmarm64 #1 Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023 Call trace: dumpbacktrace+0xdc/0x130 showstack+0x1c/0x30 dumpstacklvl+0x6c/0x84 printreport+0x150/0x448 kasanreport+0x98/0x140 _asanload4+0x78/0xa0 ofirqparseraw+0x2b8/0x8d0 ofirqparseone+0x24c/0x270 parseinterrupts+0xc0/0x120 offwnodeaddlinks+0x100/0x2d0 fwdevlinkparsefwtree+0x64/0xc0 deviceadd+0xb38/0xc30 ofdeviceadd+0x64/0x90 ofplatformdevicecreatepdata+0xd0/0x170 ofplatformbuscreate+0x244/0x600 ofplatformnotify+0x1b0/0x254 blockingnotifiercallchain+0x9c/0xd0 _ofchangesetentrynotify+0x1b8/0x230 _ofchangesetapplynotify+0x54/0xe4 ofoverlayfdtapply+0xc04/0xd94 ... The buggy address belongs to the object at ffffff81beca5600 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 8 bytes inside of 128-byte region [ffffff81beca5600, ffffff81beca5680) The buggy address belongs to the physical page: page:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1beca4 head:00000000230d3d03 order:1 compoundmapcount:0 compoundpincount:0 flags: 0x8000000000010200(slab|head|zone=2) raw: 8000000000010200 0000000000000000 dead000000000122 ffffff810000c300 raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ================================================================== OF: -> got it ! Prevent the out-of-bounds read by copying the device address into a buffer of sufficient size.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-7.7", "binary_name": "linux-bpf-dev" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-buildinfo-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-buildinfo-6.11.0-7-generic-64k" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-cloud-tools-6.11.0-7" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-cloud-tools-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-cloud-tools-common" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-doc" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-headers-6.11.0-7" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-headers-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-headers-6.11.0-7-generic-64k" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-6.11.0-7-generic-dbgsym" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-unsigned-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-unsigned-6.11.0-7-generic-64k" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-unsigned-6.11.0-7-generic-64k-dbgsym" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-image-unsigned-6.11.0-7-generic-dbgsym" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-lib-rust-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-libc-dev" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-6.11.0-7-generic-64k" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-extra-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-ipu6-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-ipu7-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-iwlwifi-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-usbio-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-modules-vision-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-source-6.11.0" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-tools-6.11.0-7" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-tools-6.11.0-7-generic" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-tools-6.11.0-7-generic-64k" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-tools-common" }, { "binary_version": "6.11.0-7.7", "binary_name": "linux-tools-host" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1002.2", "binary_name": "linux-aws-cloud-tools-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-aws-headers-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-aws-tools-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-buildinfo-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-cloud-tools-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-headers-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-aws-dbgsym" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-modules-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-modules-extra-6.11.0-1002-aws" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-tools-6.11.0-1002-aws" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1003.3", "binary_name": "linux-azure-cloud-tools-6.11.0-1003" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-azure-headers-6.11.0-1003" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-azure-tools-6.11.0-1003" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-buildinfo-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-cloud-tools-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-headers-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-image-unsigned-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-image-unsigned-6.11.0-1003-azure-dbgsym" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-modules-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-modules-extra-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-modules-iwlwifi-6.11.0-1003-azure" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-tools-6.11.0-1003-azure" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1001.1", "binary_name": "linux-buildinfo-6.11.0-1001-gcp" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-gcp-headers-6.11.0-1001" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-gcp-tools-6.11.0-1001" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-headers-6.11.0-1001-gcp" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-image-unsigned-6.11.0-1001-gcp" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-image-unsigned-6.11.0-1001-gcp-dbgsym" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-modules-6.11.0-1001-gcp" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-modules-extra-6.11.0-1001-gcp" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-tools-6.11.0-1001-gcp" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1002.2", "binary_name": "linux-buildinfo-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-buildinfo-6.11.0-1002-lowlatency-64k" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-cloud-tools-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-headers-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-headers-6.11.0-1002-lowlatency-64k" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-lowlatency-64k" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-lowlatency-64k-dbgsym" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-image-unsigned-6.11.0-1002-lowlatency-dbgsym" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-cloud-tools-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-cloud-tools-common" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-headers-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-lib-rust-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-tools-6.11.0-1002" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-tools-common" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-lowlatency-tools-host" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-modules-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-modules-6.11.0-1002-lowlatency-64k" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-modules-iwlwifi-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-tools-6.11.0-1002-lowlatency" }, { "binary_version": "6.11.0-1002.2", "binary_name": "linux-tools-6.11.0-1002-lowlatency-64k" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1004.4", "binary_name": "linux-buildinfo-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-buildinfo-6.11.0-1004-oracle-64k" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-headers-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-headers-6.11.0-1004-oracle-64k" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-image-unsigned-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-image-unsigned-6.11.0-1004-oracle-64k" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-image-unsigned-6.11.0-1004-oracle-64k-dbgsym" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-image-unsigned-6.11.0-1004-oracle-dbgsym" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-modules-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-modules-6.11.0-1004-oracle-64k" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-modules-extra-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-modules-extra-6.11.0-1004-oracle-64k" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-oracle-headers-6.11.0-1004" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-oracle-tools-6.11.0-1004" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-tools-6.11.0-1004-oracle" }, { "binary_version": "6.11.0-1004.4", "binary_name": "linux-tools-6.11.0-1004-oracle-64k" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1003.3", "binary_name": "linux-buildinfo-6.11.0-1003-raspi" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-headers-6.11.0-1003-raspi" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-image-6.11.0-1003-raspi" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-image-6.11.0-1003-raspi-dbgsym" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-modules-6.11.0-1003-raspi" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-raspi-headers-6.11.0-1003" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-raspi-tools-6.11.0-1003" }, { "binary_version": "6.11.0-1003.3", "binary_name": "linux-tools-6.11.0-1003-raspi" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1001.1", "binary_name": "linux-buildinfo-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-cloud-tools-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-headers-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-image-unsigned-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-image-unsigned-6.11.0-1001-realtime-dbgsym" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-modules-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-modules-extra-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-modules-iwlwifi-6.11.0-1001-realtime" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-realtime-cloud-tools-6.11.0-1001" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-realtime-headers-6.11.0-1001" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-realtime-tools-6.11.0-1001" }, { "binary_version": "6.11.0-1001.1", "binary_name": "linux-tools-6.11.0-1001-realtime" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-buildinfo-6.11.0-8-generic" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-headers-6.11.0-8-generic" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-image-6.11.0-8-generic" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-image-6.11.0-8-generic-dbgsym" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-modules-6.11.0-8-generic" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-riscv-headers-6.11.0-8" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-riscv-tools-6.11.0-8" }, { "binary_version": "6.11.0-8.8.1", "binary_name": "linux-tools-6.11.0-8-generic" } ] }