The Quarterly Threat Landscape Report is out. See what attackers are targeting now.Read report
In the Linux kernel, the following vulnerability has been resolved:
btrfs: do not BUG_ON() when freeing tree block after error
When freeing a tree block, at btrfs_free_tree_block(), if we fail to create a delayed reference we don't deal with the error and just do a BUG_ON(). The error most likely to happen is -ENOMEM, and we have a comment mentioning that only -ENOMEM can happen, but that is not true, because in case qgroups are enabled any error returned from btrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned from btrfs_search_slot() for example) can be propagated back to btrfs_free_tree_block().
So stop doing a BUG_ON() and return the error to the callers and make them abort the transaction to prevent leaking space. Syzbot was triggering this, likely due to memory allocation failure injection.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | May 15, 2025 | Sep 4, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Sep 4, 2024 |
| Suse | — | Upgrade cluster-md-kmp-azureUpgrade kernel-macrosUpgrade kernel-symsUpgrade reiserfs-kmp-64kbUpgrade kernel-devel-azureUpgrade dtb-alteraUpgrade kernel-kvmsmall-vdsoUpgrade dtb-qcomUpgrade dlm-kmp-64kbUpgrade dtb-freescaleUpgrade dtb-lgUpgrade kernel-azure-optionalUpgrade kernel-default-base-rebuildUpgrade reiserfs-kmp-azureUpgrade kernel-rtUpgrade kernel-azure-develUpgrade kernel-rt-vdsoUpgrade ocfs2-kmp-rtUpgrade kernel-zfcpdumpUpgrade kernel-default-livepatchUpgrade kernel-sourceUpgrade kernel-obs-qaUpgrade kernel-default-vdsoUpgrade dtb-amlogicUpgrade kernel-64kbUpgrade kernel-rt-livepatch-develUpgrade kernel-syms-rtUpgrade kernel-default-develUpgrade kernel-default-manUpgrade kernel-default-extraUpgrade kernel-source-azureUpgrade dtb-broadcomUpgrade kernel-rt_debug-vdsoUpgrade dtb-apmUpgrade kernel-kvmsmall-develUpgrade cluster-md-kmp-defaultUpgrade kernel-syms-azureUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmallUpgrade ocfs2-kmp-64kbUpgrade dtb-amazonUpgrade kernel-rt-develUpgrade kernel-rt_debug-develUpgrade kselftests-kmp-64kbUpgrade dtb-exynosUpgrade dtb-mediatekUpgrade gfs2-kmp-64kbUpgrade kernel-azure-vdsoUpgrade kernel-debug-develUpgrade kernel-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-devel-rtUpgrade kernel-source-vanillaUpgrade kselftests-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-azure-extraUpgrade kernel-debugUpgrade kernel-docsUpgrade ocfs2-kmp-defaultUpgrade dtb-xilinxUpgrade dtb-caviumUpgrade kernel-64kb-optionalUpgrade dtb-sprdUpgrade dtb-socionextUpgrade dtb-rockchipUpgrade dlm-kmp-azureUpgrade kernel-rt-extraUpgrade kernel-default-optionalUpgrade dlm-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-docs-htmlUpgrade kernel-default-baseUpgrade kernel-default-livepatch-develUpgrade dtb-renesasUpgrade dtb-amdUpgrade gfs2-kmp-defaultUpgrade gfs2-kmp-azureUpgrade cluster-md-kmp-rtUpgrade dtb-appleUpgrade kernel-source-rtUpgrade kernel-develUpgrade reiserfs-kmp-rtUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade kernel-rt_debugUpgrade dtb-hisiliconUpgrade kernel-64kb-extraUpgrade dtb-marvellUpgrade ocfs2-kmp-azureUpgrade dtb-allwinnerUpgrade dtb-nvidiaUpgrade dtb-armUpgrade kselftests-kmp-azureUpgrade kernel-obs-buildUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-optionalUpgrade dlm-kmp-rt | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1020-awsUpgrade linux-image-6.8.0-50-lowlatency-64kUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azureUpgrade linux-image-6.8.0-1019-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-50-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1017-oracle-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-50-genericUpgrade linux-image-6.8.0-1018-oemUpgrade linux-image-6.8.0-1015-gkeUpgrade linux-image-ibm-classicUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1020-azure-fdeUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1019-nvidia-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1016-raspiUpgrade linux-image-awsUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1017-ibmUpgrade linux-image-6.8.0-1019-gcpUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-genericUpgrade linux-image-6.8.0-1020-azureUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1019-nvidiaUpgrade linux-image-nvidiaUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1017-oracleUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oracleUpgrade linux-image-oem-22.04cUpgrade linux-image-oracle-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-oem-24.04aUpgrade linux-image-oem-22.04bUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1019-nvidia-lowlatencyUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-gkeopUpgrade linux-image-virtualUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-gkeUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-50-generic-64k | Dec 13, 2024 | Sep 4, 2024 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub