In the Linux kernel, the following vulnerability has been resolved:
ALSA: line6: Fix racy access to midibuf
There can be concurrent accesses to line6 midibuf from both the URB completion callback and the rawmidi API access. This could be a cause of KMSAN warning triggered by syzkaller below (so put as reported-by here).
This patch protects the midibuf call of the former code path with a spinlock for avoiding the possible races.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 6, 2024 | Sep 4, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Oct 16, 2024 | Sep 4, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Sep 4, 2024 |
| Suse | — | Upgrade kernel-azure-vdsoUpgrade kernel-rt-livepatch-develUpgrade kernel-64kb-extraUpgrade kernel-syms-rtUpgrade ocfs2-kmp-azureUpgrade kselftests-kmp-rtUpgrade reiserfs-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-rt-vdsoUpgrade kernel-rt-develUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade dlm-kmp-azureUpgrade kernel-docsUpgrade dlm-kmp-rtUpgrade dtb-nvidiaUpgrade kernel-default-manUpgrade dtb-socionextUpgrade dtb-sprdUpgrade dtb-renesasUpgrade gfs2-kmp-defaultUpgrade kernel-source-vanillaUpgrade kernel-azureUpgrade kernel-rt_debug-vdsoUpgrade reiserfs-kmp-azureUpgrade kernel-rt-extraUpgrade kernel-defaultUpgrade dtb-mediatekUpgrade dtb-rockchipUpgrade dtb-amdUpgrade kernel-debug-develUpgrade kernel-default-livepatch-develUpgrade kernel-obs-buildUpgrade dtb-allwinnerUpgrade kernel-debug-vdsoUpgrade cluster-md-kmp-defaultUpgrade dlm-kmp-defaultUpgrade kernel-devel-rtUpgrade kernel-rt_debugUpgrade kernel-default-baseUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-armUpgrade kernel-default-base-rebuildUpgrade kernel-devel-azureUpgrade ocfs2-kmp-rtUpgrade dtb-amlogicUpgrade dtb-appleUpgrade kernel-default-livepatchUpgrade kernel-default-extraUpgrade kernel-syms-azureUpgrade kernel-source-rtUpgrade kernel-64kb-develUpgrade kernel-64kbUpgrade gfs2-kmp-rtUpgrade dtb-caviumUpgrade dtb-qcomUpgrade kernel-64kb-optionalUpgrade kernel-azure-extraUpgrade kernel-debug-livepatch-develUpgrade kernel-debugUpgrade gfs2-kmp-64kbUpgrade dtb-xilinxUpgrade ocfs2-kmp-defaultUpgrade kernel-default-develUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-develUpgrade kernel-develUpgrade dtb-alteraUpgrade kselftests-kmp-64kbUpgrade dtb-exynosUpgrade gfs2-kmp-azureUpgrade dtb-broadcomUpgrade kernel-docs-htmlUpgrade kernel-macrosUpgrade dlm-kmp-64kbUpgrade dtb-apmUpgrade kernel-obs-qaUpgrade kernel-source-azureUpgrade kernel-azure-optionalUpgrade kernel-zfcpdumpUpgrade cluster-md-kmp-rtUpgrade dtb-amazonUpgrade reiserfs-kmp-64kbUpgrade dtb-lgUpgrade kernel-default-vdsoUpgrade kernel-rt-livepatchUpgrade cluster-md-kmp-azureUpgrade dtb-marvellUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azure-baseUpgrade ocfs2-kmp-64kbUpgrade kselftests-kmp-azureUpgrade kernel-symsUpgrade kernel-rtUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-freescaleUpgrade dtb-hisiliconUpgrade kernel-64kb-livepatch-develUpgrade kernel-sourceUpgrade kernel-kvmsmallUpgrade kernel-default-optionalUpgrade kernel-kvmsmall-develUpgrade kernel-azure-livepatch-develUpgrade kernel-azure-devel | Dec 5, 2025 | Oct 8, 2024 |
| Ubuntu | — | Upgrade linux-image-5.4.0-1139-gcpUpgrade linux-image-5.4.0-1044-iotUpgrade linux-image-genericUpgrade linux-image-raspi2Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-6.8.0-1020-awsUpgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-1075-azureUpgrade linux-image-gkeop-6.8Upgrade linux-image-5.4.0-1102-gkeopUpgrade linux-image-generic-64kUpgrade linux-image-5.4.0-1140-azureUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1069-kvmUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-6.8.0-1017-ibmUpgrade linux-image-ibm-classicUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1017-oracle-64kUpgrade linux-image-gke-5.15Upgrade linux-image-gkeopUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-azure-fdeUpgrade linux-image-5.4.0-200-genericUpgrade linux-image-5.15.0-1065-raspiUpgrade linux-image-6.8.0-1019-nvidiaUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-nvidiaUpgrade linux-image-5.4.0-1135-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-azureUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-1072-awsUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1019-nvidia-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-6.8.0-1020-azure-fdeUpgrade linux-image-5.4.0-1123-kvmUpgrade linux-image-5.15.0-1067-nvidia-lowlatencyUpgrade linux-image-6.8.0-50-lowlatencyUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1016-raspiUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1065-ibmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibmUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-5.15.0-1067-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-virtualUpgrade linux-image-5.15.0-1069-gkeUpgrade linux-image-aws-lts-20.04Upgrade linux-image-5.4.0-200-generic-lpaeUpgrade linux-image-5.15.0-1071-gcpUpgrade linux-image-nvidia-64kUpgrade linux-image-azure-lts-20.04Upgrade linux-image-5.4.0-1139-azureUpgrade linux-image-6.8.0-50-lowlatency-64kUpgrade linux-image-5.4.0-1054-xilinx-zynqmpUpgrade linux-image-6.8.0-1018-oemUpgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-oem-22.04cUpgrade linux-image-gkeop-5.4Upgrade linux-image-5.15.0-1070-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-gcpUpgrade linux-image-oem-osp1Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracleUpgrade linux-image-5.15.0-125-lowlatencyUpgrade linux-image-5.4.0-200-lowlatencyUpgrade linux-image-5.15.0-1038-xilinx-zynqmpUpgrade linux-image-bluefieldUpgrade linux-image-raspiUpgrade linux-image-kvmUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1015-gkeUpgrade linux-image-oemUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-azure-cvmUpgrade linux-image-6.8.0-50-generic-64kUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-gkeUpgrade linux-image-5.15.0-125-genericUpgrade linux-image-intelUpgrade linux-image-6.8.0-50-genericUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.4.0-1094-bluefieldUpgrade linux-image-5.15.0-1067-intel-iotgUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-6.8.0-1020-azureUpgrade linux-image-5.4.0-1134-oracleUpgrade linux-image-6.8.0-1019-gcpUpgrade linux-image-oem-20.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1019-nvidia-lowlatencyUpgrade linux-image-nvidia-6.8Upgrade linux-image-5.15.0-125-generic-64kUpgrade linux-image-6.8.0-1017-oracleUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-5.15.0-125-generic-lpaeUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-125-lowlatency-64kUpgrade linux-image-intel-iotgUpgrade linux-image-5.4.0-1082-ibmUpgrade linux-image-5.15.0-1078-azureUpgrade linux-image-gkeop-5.15Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-6.8.0-1019-nvidia-lowlatency-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-5.4.0-1119-raspiUpgrade linux-image-5.15.0-1055-gkeop | Nov 4, 2024 | Sep 4, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Sep 4, 2024 |
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