In the Linux kernel, the following vulnerability has been resolved:
jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata()
Since handle->h_transaction may be a NULL pointer, so we should change it to call is_handle_aborted(handle) first before dereferencing it.
And the following data-race was reported in my fuzzer:
================================================================== BUG: KCSAN: data-race in jbd2_journal_dirty_metadata / jbd2_journal_dirty_metadata
write to 0xffff888011024104 of 4 bytes by task 10881 on cpu 1: jbd2_journal_dirty_metadata+0x2a5/0x770 fs/jbd2/transaction.c:1556 __ext4_handle_dirty_metadata+0xe7/0x4b0 fs/ext4/ext4_jbd2.c:358 ext4_do_update_inode fs/ext4/inode.c:5220 [inline] ext4_mark_iloc_dirty+0x32c/0xd50 fs/ext4/inode.c:5869 __ext4_mark_inode_dirty+0xe1/0x450 fs/ext4/inode.c:6074 ext4_dirty_inode+0x98/0xc0 fs/ext4/inode.c:6103 ....
read to 0xffff888011024104 of 4 bytes by task 10880 on cpu 0: jbd2_journal_dirty_metadata+0xf2/0x770 fs/jbd2/transaction.c:1512 __ext4_handle_dirty_metadata+0xe7/0x4b0 fs/ext4/ext4_jbd2.c:358 ext4_do_update_inode fs/ext4/inode.c:5220 [inline] ext4_mark_iloc_dirty+0x32c/0xd50 fs/ext4/inode.c:5869 __ext4_mark_inode_dirty+0xe1/0x450 fs/ext4/inode.c:6074 ext4_dirty_inode+0x98/0xc0 fs/ext4/inode.c:6103 ....
value changed: 0x00000000 -> 0x00000001 ==================================================================
This issue is caused by missing data-race annotation for jh->b_modified. Therefore, the missing annotation needs to be added.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.239-236.958Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade kernel-livepatch-5.15.186-128.192Upgrade perfUpgrade python-perfUpgrade perf-debuginfoUpgrade kernelUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-toolsUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-libbpf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel-libbpfUpgrade perf-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel-livepatch-6.1.144-170.251Upgrade kernel-develUpgrade kernel6.12Upgrade bpftool-debuginfoUpgrade kernel6.12-modules-extraUpgrade perfUpgrade bpftoolUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernelUpgrade python3-perf-debuginfoUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade python3-perf6.12-debuginfoUpgrade python3-perf6.12Upgrade kernel-livepatch-6.12.35-55.103Upgrade kernel6.12-debuginfoUpgrade kernel-libbpf-develUpgrade perf6.12Upgrade kernel-debuginfoUpgrade python3-perfUpgrade kernel-tools-devel | Sep 9, 2025 | Jul 10, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 11, 2025 | Jul 11, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Sep 15, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perf | Oct 14, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Sep 15, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade python3-perfUpgrade kernel-toolsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Oct 24, 2025 | Sep 9, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Sep 10, 2025 | Jul 10, 2025 |
| Redhat_linux | — | No solution exists | Jul 14, 2025 | Jul 10, 2025 |
| Suse | — | Upgrade kernel-rt-livepatch-develUpgrade kernel-rt-vdsoUpgrade dtb-lgUpgrade kernel-rt_debug-develUpgrade dtb-exynosUpgrade kernel-sourceUpgrade kernel-source-rtUpgrade dtb-broadcomUpgrade kernel-debug-develUpgrade kernel-debug-vdsoUpgrade kernel-debugUpgrade dtb-alteraUpgrade ocfs2-kmp-rtUpgrade ocfs2-kmp-defaultUpgrade kernel-source-azureUpgrade kernel-azure-extraUpgrade reiserfs-kmp-rtUpgrade dtb-renesasUpgrade kernel-syms-azureUpgrade kernel-azureUpgrade kselftests-kmp-64kbUpgrade dtb-allwinnerUpgrade ocfs2-kmp-64kbUpgrade kernel-default-livepatch-develUpgrade dtb-amdUpgrade dtb-hisiliconUpgrade kernel-azure-vdsoUpgrade dtb-caviumUpgrade kernel-default-develUpgrade kernel-syms-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-default-vdsoUpgrade dtb-socionextUpgrade dtb-freescaleUpgrade kernel-default-livepatchUpgrade gfs2-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade kernel-source-vanillaUpgrade dtb-marvellUpgrade kernel-kvmsmallUpgrade kernel-zfcpdumpUpgrade kernel-azure-optionalUpgrade kernel-docs-htmlUpgrade cluster-md-kmp-azureUpgrade kernel-kvmsmall-develUpgrade kernel-64kb-optionalUpgrade kernel-rt_debugUpgrade kernel-rt-optionalUpgrade dlm-kmp-64kbUpgrade dtb-appleUpgrade gfs2-kmp-rtUpgrade gfs2-kmp-azureUpgrade kernel-64kbUpgrade dtb-amazonUpgrade kselftests-kmp-azureUpgrade reiserfs-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-default-manUpgrade kernel-devel-azureUpgrade kernel-devel-rtUpgrade kernel-rt-livepatchUpgrade kernel-macrosUpgrade dlm-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade dtb-armUpgrade dtb-mediatekUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-obs-buildUpgrade dtb-rockchipUpgrade kernel-rt-extraUpgrade dtb-xilinxUpgrade ocfs2-kmp-azureUpgrade dtb-apmUpgrade dlm-kmp-azureUpgrade kernel-defaultUpgrade kernel-develUpgrade dtb-qcomUpgrade kernel-obs-qaUpgrade kernel-default-optionalUpgrade kernel-64kb-extraUpgrade kernel-azure-develUpgrade kernel-default-extraUpgrade dlm-kmp-rtUpgrade kernel-docsUpgrade kernel-default-baseUpgrade dtb-amlogicUpgrade dtb-sprdUpgrade kernel-symsUpgrade kselftests-kmp-rtUpgrade kernel-rt-develUpgrade kernel-rtUpgrade kernel-default-base-rebuildUpgrade kernel-64kb-develUpgrade dtb-nvidiaUpgrade reiserfs-kmp-azure | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-oracle-64kUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-intel-iotgUpgrade linux-image-oem-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtime-6.14Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-generic-64kUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-5.15.0-1092-gcp-fipsUpgrade linux-image-5.15.0-1090-oracleUpgrade linux-image-5.15.0-1045-nvidia-tegra-rtUpgrade linux-image-5.15.0-1045-nvidia-tegraUpgrade linux-image-realtimeUpgrade linux-image-xilinxUpgrade linux-image-oem-24.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-5.15Upgrade linux-image-intelUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-6.14.0-1015-oracleUpgrade linux-image-5.15.0-156-generic-lpaeUpgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-34-generic-64kUpgrade linux-image-raspi-5.15Upgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-aws-5.15Upgrade linux-image-6.14.0-1007-azure-nvidiaUpgrade linux-image-fips-5.15Upgrade linux-image-azure-lts-22.04Upgrade linux-image-6.14.0-1014-azureUpgrade linux-image-5.15.0-1092-awsUpgrade linux-image-5.15.0-1089-gkeUpgrade linux-image-lowlatency-64kUpgrade linux-image-gke-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-5.15.0-1075-gkeopUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.14.0-1014-realtimeUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-6.14.0-34-genericUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-genericUpgrade linux-image-aws-fipsUpgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-5.15.0-1087-nvidia-lowlatencyUpgrade linux-image-5.15.0-1034-nvidia-tegra-igx-rtUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-kvm-5.15Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gkeUpgrade linux-image-gkeop-5.15Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-fipsUpgrade linux-image-gkeopUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1016-raspiUpgrade linux-image-6.14.0-1015-oracle-64kUpgrade linux-image-6.14.0-1014-oemUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-gcp-6.14Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-realtime-5.15Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-6.14.0-1018-gcp-64kUpgrade linux-image-5.15.0-1096-azure-fipsUpgrade linux-image-virtualUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-ibm-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-1092-aws-64kUpgrade linux-image-azure-6.14Upgrade linux-image-5.15.0-156-fipsUpgrade linux-image-5.15.0-1096-azureUpgrade linux-image-6.14.0-1018-gcpUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-oem-24.04bUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-ibmUpgrade linux-image-5.15.0-1086-ibmUpgrade linux-image-5.15.0-1087-nvidiaUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-fipsUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1092-realtimeUpgrade linux-image-fips-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-generic-6.14Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-oem-22.04aUpgrade linux-image-aws-fips-5.15Upgrade linux-image-6.14.0-1015-awsUpgrade linux-image-azure-nvidia-6.14Upgrade linux-image-generic-64k-6.14Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-azure-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-oracle-6.8Upgrade linux-image-oem-24.04cUpgrade linux-image-gcp-5.15Upgrade linux-image-generic-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-6.14Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-oem-22.04bUpgrade linux-image-oracle-6.14Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-5.15.0-1034-nvidia-tegra-igxUpgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-5.15.0-1092-gcpUpgrade linux-image-kvmUpgrade linux-image-ibm-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-5.15.0-156-generic-64kUpgrade linux-image-aws-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-virtual-5.15Upgrade linux-image-5.15.0-1088-kvmUpgrade linux-image-oracleUpgrade linux-image-oracle-5.15Upgrade linux-image-azure-nvidiaUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-64k-5.15Upgrade linux-image-5.15.0-1087-intel-iotgUpgrade linux-image-aws-6.14Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-5.15Upgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-cvmUpgrade linux-image-gkeop-6.8Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-virtual-6.14Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.15.0-156-lowlatency-64kUpgrade linux-image-gcp-6.8Upgrade linux-image-gke-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1086-raspiUpgrade linux-image-5.15.0-156-lowlatencyUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-aws-64k-6.14Upgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-awsUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-6.14.0-1015-aws-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspiUpgrade linux-image-azure-fips-6.8Upgrade linux-image-azureUpgrade linux-image-5.15.0-156-genericUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-aws-64k-5.15Upgrade linux-image-5.15.0-1085-intel-iot-realtimeUpgrade linux-image-5.15.0-1092-aws-fipsUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-5.15.0-1056-xilinx-zynqmpUpgrade linux-image-raspi-6.8Upgrade linux-image-generic-64k-hwe-24.04 | Jul 14, 2025 | Jul 10, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 3, 2025 | Jul 10, 2025 |
Prioritise with Active Threat Intelligence
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