In the Linux kernel, the following vulnerability has been resolved:
dax: make sure inodes are flushed before destroy cache
A bug can be triggered by following command
$ modprobe nd_pmem && modprobe -r nd_pmem
[ 10.060014] BUG dax_cache (Not tainted): Objects remaining in dax_cache on __kmem_cache_shutdown() [ 10.060938] Slab 0x0000000085b729ac objects=9 used=1 fp=0x000000004f5ae469 flags=0x200000000010200(slab|head|node) [ 10.062433] Call Trace: [ 10.062673] dump_stack_lvl+0x34/0x44 [ 10.062865] slab_err+0x90/0xd0 [ 10.063619] __kmem_cache_shutdown+0x13b/0x2f0 [ 10.063848] kmem_cache_destroy+0x4a/0x110 [ 10.064058] __x64_sys_delete_module+0x265/0x300
This is caused by dax_fs_exit() not flushing inodes before destroy cache. To fix this issue, call rcu_barrier() before destroy cache.
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 python-perf-debuginfoUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-livepatch-5.10.112-108.499Upgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade perfUpgrade bpftoolUpgrade python-perfUpgrade perf-debuginfo | May 22, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernelUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade bpftool | Jun 11, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-aws-fipsUpgrade linux-azureUpgrade linux-hwe-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linuxUpgrade linux-raspiUpgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-lowlatencyUpgrade linux-hwe-5.4Upgrade linux-realtimeUpgrade linux-aws-5.4Upgrade linux-awsUpgrade linux-azure-5.4Upgrade linux-iotUpgrade linux-ibm-5.4Upgrade linux-fipsUpgrade linux-gcp-5.4Upgrade linux-raspi-5.4Upgrade linux-oracleUpgrade linux-kvmUpgrade linux-gkeUpgrade linux-gcpUpgrade linux-intel-iotgUpgrade linux-gcp-fipsUpgrade linux-oracle-5.4Upgrade linux-bluefieldUpgrade linux-azure-5.15 | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 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